) but must be treated as such.\n\n\n var focusable = !disabled && importantForAccessibility !== 'no' && importantForAccessibility !== 'no-hide-descendants';\n\n if (role === 'link' || component === 'a' || component === 'button' || component === 'input' || component === 'select' || component === 'textarea') {\n if (accessible === false || !focusable) {\n domProps.tabIndex = '-1';\n } else {\n domProps['data-focusable'] = true;\n }\n } else if (AccessibilityUtil.buttonLikeRoles[role] || role === 'textbox') {\n if (accessible !== false && focusable) {\n domProps['data-focusable'] = true;\n domProps.tabIndex = '0';\n }\n } else {\n if (accessible === true && focusable) {\n domProps['data-focusable'] = true;\n domProps.tabIndex = '0';\n }\n } // STYLE\n\n\n var reactNativeStyle = StyleSheet.compose(pointerEvents && pointerEventsStyles[pointerEvents], StyleSheet.compose(providedStyle, placeholderTextColor && {\n placeholderTextColor: placeholderTextColor\n })); // Additional style resets for interactive elements\n\n var needsCursor = (role === 'button' || role === 'link') && !disabled;\n var needsReset = component === 'a' || component === 'button' || component === 'li' || component === 'ul' || role === 'heading'; // Classic CSS styles\n\n var finalClassList = [deprecatedClassName, needsReset && classes.reset, needsCursor && classes.cursor, classList]; // Resolve styles\n\n var _styleResolver = styleResolver(reactNativeStyle, finalClassList),\n className = _styleResolver.className,\n style = _styleResolver.style;\n\n if (className != null && className !== '') {\n domProps.className = className;\n }\n\n if (style) {\n domProps.style = style;\n } // OTHER\n // Native element ID\n\n\n if (nativeID && nativeID.constructor === String) {\n domProps.id = nativeID;\n } // Link security\n // https://mathiasbynens.github.io/rel-noopener/\n // Note: using \"noreferrer\" doesn't impact referrer tracking for https\n // transfers (i.e., from https to https).\n\n\n if (component === 'a' && domProps.target === '_blank') {\n domProps.rel = (domProps.rel || '') + \" noopener noreferrer\";\n } // Automated test IDs\n\n\n if (testID && testID.constructor === String) {\n domProps['data-testid'] = testID;\n }\n\n return domProps;\n};\n\nexport default createDOMProps;","/**\n * Copyright (c) Nicolas Gallagher.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n */\nimport normalizeColor from '../../modules/normalizeColor';\nimport normalizeValueWithProperty from './normalizeValueWithProperty';\nvar defaultOffset = {\n height: 0,\n width: 0\n};\n\nvar resolveShadowValue = function resolveShadowValue(style) {\n var shadowColor = style.shadowColor,\n shadowOffset = style.shadowOffset,\n shadowOpacity = style.shadowOpacity,\n shadowRadius = style.shadowRadius;\n\n var _ref = shadowOffset || defaultOffset,\n height = _ref.height,\n width = _ref.width;\n\n var offsetX = normalizeValueWithProperty(width);\n var offsetY = normalizeValueWithProperty(height);\n var blurRadius = normalizeValueWithProperty(shadowRadius || 0);\n var color = normalizeColor(shadowColor || 'black', shadowOpacity);\n\n if (color != null && offsetX != null && offsetY != null && blurRadius != null) {\n return offsetX + \" \" + offsetY + \" \" + blurRadius + \" \" + color;\n }\n};\n\nexport default resolveShadowValue;","import React from 'react';\nimport hoistStatics from 'hoist-non-react-statics';\nimport { withNavigation } from '@react-navigation/core';\n\nexport default function createNavigationAwareScrollable(Component) {\n const ComponentWithNavigationScrolling = withNavigation(class extends React.PureComponent {\n static displayName = `withNavigationScrolling(${Component.displayName || Component.name})`;\n\n componentDidMount() {\n this._subscription = this.props.navigation.addListener('refocus', () => {\n const scrollableNode = this.getNode();\n if (this.props.navigation.isFocused() && scrollableNode !== null) {\n if (scrollableNode.scrollToTop != null) {\n scrollableNode.scrollToTop();\n } else if (scrollableNode.scrollTo != null) {\n scrollableNode.scrollTo({ y: 0 });\n } else if (scrollableNode.scrollResponderScrollTo != null) {\n scrollableNode.scrollResponderScrollTo({ y: 0 });\n }\n }\n });\n }\n\n getNode() {\n if (this._scrollRef === null) {\n return null;\n }\n\n if (this._scrollRef.getScrollResponder) {\n return this._scrollRef.getScrollResponder();\n } else if (this._scrollRef.getNode) {\n return this._scrollRef.getNode();\n } else {\n return this._scrollRef;\n }\n }\n\n componentWillUnmount() {\n if (this._subscription != null) {\n this._subscription.remove();\n }\n }\n\n render() {\n return
{\n this._scrollRef = view;\n }} {...this.props} />;\n }\n });\n\n class NavigationAwareScrollable extends React.PureComponent {\n static displayName = `NavigationAwareScrollable(${Component.displayName || Component.name})`;\n\n _captureRef = view => {\n this._innerRef = view;\n this.props.onRef && this.props.onRef(view);\n };\n\n setNativeProps = (...args) => {\n return this._innerRef.getNode().setNativeProps(...args);\n };\n\n getScrollResponder = (...args) => {\n return this._innerRef.getNode().getScrollResponder(...args);\n };\n\n getScrollableNode = (...args) => {\n return this._innerRef.getNode().getScrollableNode(...args);\n };\n\n getInnerViewNode = (...args) => {\n return this._innerRef.getNode().getInnerViewNode(...args);\n };\n\n scrollTo = (...args) => {\n return this._innerRef.getNode().scrollTo(...args);\n };\n\n scrollToEnd = (...args) => {\n return this._innerRef.getNode().scrollToEnd(...args);\n };\n\n scrollWithoutAnimationTo = (...args) => {\n return this._innerRef.getNode().scrollWithoutAnimationTo(...args);\n };\n\n flashScrollIndicators = (...args) => {\n return this._innerRef.getNode().flashScrollIndicators(...args);\n };\n\n render() {\n return ;\n }\n }\n\n return hoistStatics(NavigationAwareScrollable, Component);\n}","/**\n * Copyright (c) 2015-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @providesModule NativeEventEmitter\n * \n */\n'use strict';\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\nimport invariant from 'fbjs/lib/invariant';\nimport EventEmitter from '../emitter/EventEmitter';\nimport RCTDeviceEventEmitter from './RCTDeviceEventEmitter';\n\n/**\n * Abstract base class for implementing event-emitting modules. This implements\n * a subset of the standard EventEmitter node module API.\n */\nvar NativeEventEmitter =\n/*#__PURE__*/\nfunction (_EventEmitter) {\n _inheritsLoose(NativeEventEmitter, _EventEmitter);\n\n function NativeEventEmitter(nativeModule) {\n return _EventEmitter.call(this, RCTDeviceEventEmitter.sharedSubscriber) || this;\n }\n\n var _proto = NativeEventEmitter.prototype;\n\n _proto.addListener = function addListener(eventType, listener, context) {\n if (this._nativeModule != null) {\n this._nativeModule.addListener(eventType);\n }\n\n return _EventEmitter.prototype.addListener.call(this, eventType, listener, context);\n };\n\n _proto.removeAllListeners = function removeAllListeners(eventType) {\n invariant(eventType, 'eventType argument is required.');\n var count = this.listeners(eventType).length;\n\n if (this._nativeModule != null) {\n this._nativeModule.removeListeners(count);\n }\n\n _EventEmitter.prototype.removeAllListeners.call(this, eventType);\n };\n\n _proto.removeSubscription = function removeSubscription(subscription) {\n if (this._nativeModule != null) {\n this._nativeModule.removeListeners(1);\n }\n\n _EventEmitter.prototype.removeSubscription.call(this, subscription);\n };\n\n return NativeEventEmitter;\n}(EventEmitter);\n\nexport default NativeEventEmitter;","/**\n * Copyright (c) 2015-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n */\n'use strict';\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\nimport EventEmitter from '../emitter/EventEmitter';\nimport EventSubscriptionVendor from '../emitter/EventSubscriptionVendor';\n\nvar __DEV__ = process.env.NODE_ENV !== 'production';\n\nfunction checkNativeEventModule(eventType) {\n if (eventType) {\n if (eventType === 'appStateDidChange' || eventType === 'memoryWarning') {\n throw new Error('`' + eventType + '` event should be registered via the AppState module');\n }\n }\n}\n/**\n * Deprecated - subclass NativeEventEmitter to create granular event modules instead of\n * adding all event listeners directly to RCTDeviceEventEmitter.\n */\n\n\nvar RCTDeviceEventEmitter =\n/*#__PURE__*/\nfunction (_EventEmitter) {\n _inheritsLoose(RCTDeviceEventEmitter, _EventEmitter);\n\n function RCTDeviceEventEmitter() {\n var _this;\n\n var sharedSubscriber = new EventSubscriptionVendor();\n _this = _EventEmitter.call(this, sharedSubscriber) || this;\n _this.sharedSubscriber = sharedSubscriber;\n return _this;\n }\n\n var _proto = RCTDeviceEventEmitter.prototype;\n\n _proto.addListener = function addListener(eventType, listener, context) {\n if (__DEV__) {\n checkNativeEventModule(eventType);\n }\n\n return _EventEmitter.prototype.addListener.call(this, eventType, listener, context);\n };\n\n _proto.removeAllListeners = function removeAllListeners(eventType) {\n if (__DEV__) {\n checkNativeEventModule(eventType);\n }\n\n _EventEmitter.prototype.removeAllListeners.call(this, eventType);\n };\n\n _proto.removeSubscription = function removeSubscription(subscription) {\n if (subscription.emitter !== this) {\n subscription.emitter.removeSubscription(subscription);\n } else {\n _EventEmitter.prototype.removeSubscription.call(this, subscription);\n }\n };\n\n return RCTDeviceEventEmitter;\n}(EventEmitter);\n\nexport default new RCTDeviceEventEmitter();","/**\n * Copyright (c) 2015-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @providesModule EventSubscriptionVendor\n * \n */\n'use strict';\n\nimport invariant from 'fbjs/lib/invariant';\n\n/**\n * EventSubscriptionVendor stores a set of EventSubscriptions that are\n * subscribed to a particular event type.\n */\nvar EventSubscriptionVendor =\n/*#__PURE__*/\nfunction () {\n function EventSubscriptionVendor() {\n this._subscriptionsForType = {};\n this._currentSubscription = null;\n }\n /**\n * Adds a subscription keyed by an event type.\n *\n * @param {string} eventType\n * @param {EventSubscription} subscription\n */\n\n\n var _proto = EventSubscriptionVendor.prototype;\n\n _proto.addSubscription = function addSubscription(eventType, subscription) {\n invariant(subscription.subscriber === this, 'The subscriber of the subscription is incorrectly set.');\n\n if (!this._subscriptionsForType[eventType]) {\n this._subscriptionsForType[eventType] = [];\n }\n\n var key = this._subscriptionsForType[eventType].length;\n\n this._subscriptionsForType[eventType].push(subscription);\n\n subscription.eventType = eventType;\n subscription.key = key;\n return subscription;\n }\n /**\n * Removes a bulk set of the subscriptions.\n *\n * @param {?string} eventType - Optional name of the event type whose\n * registered supscriptions to remove, if null remove all subscriptions.\n */\n ;\n\n _proto.removeAllSubscriptions = function removeAllSubscriptions(eventType) {\n if (eventType === undefined) {\n this._subscriptionsForType = {};\n } else {\n delete this._subscriptionsForType[eventType];\n }\n }\n /**\n * Removes a specific subscription. Instead of calling this function, call\n * `subscription.remove()` directly.\n *\n * @param {object} subscription\n */\n ;\n\n _proto.removeSubscription = function removeSubscription(subscription) {\n var eventType = subscription.eventType;\n var key = subscription.key;\n var subscriptionsForType = this._subscriptionsForType[eventType];\n\n if (subscriptionsForType) {\n delete subscriptionsForType[key];\n }\n }\n /**\n * Returns the array of subscriptions that are currently registered for the\n * given event type.\n *\n * Note: This array can be potentially sparse as subscriptions are deleted\n * from it when they are removed.\n *\n * TODO: This returns a nullable array. wat?\n *\n * @param {string} eventType\n * @returns {?array}\n */\n ;\n\n _proto.getSubscriptionsForType = function getSubscriptionsForType(eventType) {\n return this._subscriptionsForType[eventType];\n };\n\n return EventSubscriptionVendor;\n}();\n\nexport default EventSubscriptionVendor;","/**\n * Copyright (c) Nicolas Gallagher.\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n */\nimport Dimensions from '../../exports/Dimensions';\nimport findNodeHandle from '../../exports/findNodeHandle';\nimport invariant from 'fbjs/lib/invariant';\nimport Platform from '../../exports/Platform';\nimport TextInputState from '../TextInputState';\nimport UIManager from '../../exports/UIManager';\nimport warning from 'fbjs/lib/warning';\n/**\n * Mixin that can be integrated in order to handle scrolling that plays well\n * with `ResponderEventPlugin`. Integrate with your platform specific scroll\n * views, or even your custom built (every-frame animating) scroll views so that\n * all of these systems play well with the `ResponderEventPlugin`.\n *\n * iOS scroll event timing nuances:\n * ===============================\n *\n *\n * Scrolling without bouncing, if you touch down:\n * -------------------------------\n *\n * 1. `onMomentumScrollBegin` (when animation begins after letting up)\n * ... physical touch starts ...\n * 2. `onTouchStartCapture` (when you press down to stop the scroll)\n * 3. `onTouchStart` (same, but bubble phase)\n * 4. `onResponderRelease` (when lifting up - you could pause forever before * lifting)\n * 5. `onMomentumScrollEnd`\n *\n *\n * Scrolling with bouncing, if you touch down:\n * -------------------------------\n *\n * 1. `onMomentumScrollBegin` (when animation begins after letting up)\n * ... bounce begins ...\n * ... some time elapses ...\n * ... physical touch during bounce ...\n * 2. `onMomentumScrollEnd` (Makes no sense why this occurs first during bounce)\n * 3. `onTouchStartCapture` (immediately after `onMomentumScrollEnd`)\n * 4. `onTouchStart` (same, but bubble phase)\n * 5. `onTouchEnd` (You could hold the touch start for a long time)\n * 6. `onMomentumScrollBegin` (When releasing the view starts bouncing back)\n *\n * So when we receive an `onTouchStart`, how can we tell if we are touching\n * *during* an animation (which then causes the animation to stop)? The only way\n * to tell is if the `touchStart` occurred immediately after the\n * `onMomentumScrollEnd`.\n *\n * This is abstracted out for you, so you can just call this.scrollResponderIsAnimating() if\n * necessary\n *\n * `ScrollResponder` also includes logic for blurring a currently focused input\n * if one is focused while scrolling. The `ScrollResponder` is a natural place\n * to put this logic since it can support not dismissing the keyboard while\n * scrolling, unless a recognized \"tap\"-like gesture has occurred.\n *\n * The public lifecycle API includes events for keyboard interaction, responder\n * interaction, and scrolling (among others). The keyboard callbacks\n * `onKeyboardWill/Did/*` are *global* events, but are invoked on scroll\n * responder's props so that you can guarantee that the scroll responder's\n * internal state has been updated accordingly (and deterministically) by\n * the time the props callbacks are invoke. Otherwise, you would always wonder\n * if the scroll responder is currently in a state where it recognizes new\n * keyboard positions etc. If coordinating scrolling with keyboard movement,\n * *always* use these hooks instead of listening to your own global keyboard\n * events.\n *\n * Public keyboard lifecycle API: (props callbacks)\n *\n * Standard Keyboard Appearance Sequence:\n *\n * this.props.onKeyboardWillShow\n * this.props.onKeyboardDidShow\n *\n * `onScrollResponderKeyboardDismissed` will be invoked if an appropriate\n * tap inside the scroll responder's scrollable region was responsible\n * for the dismissal of the keyboard. There are other reasons why the\n * keyboard could be dismissed.\n *\n * this.props.onScrollResponderKeyboardDismissed\n *\n * Standard Keyboard Hide Sequence:\n *\n * this.props.onKeyboardWillHide\n * this.props.onKeyboardDidHide\n */\n\nvar emptyObject = {};\nvar IS_ANIMATING_TOUCH_START_THRESHOLD_MS = 16;\nvar ScrollResponderMixin = {\n // mixins: [Subscribable.Mixin],\n scrollResponderMixinGetInitialState: function scrollResponderMixinGetInitialState() {\n return {\n isTouching: false,\n lastMomentumScrollBeginTime: 0,\n lastMomentumScrollEndTime: 0,\n // Reset to false every time becomes responder. This is used to:\n // - Determine if the scroll view has been scrolled and therefore should\n // refuse to give up its responder lock.\n // - Determine if releasing should dismiss the keyboard when we are in\n // tap-to-dismiss mode (!this.props.keyboardShouldPersistTaps).\n observedScrollSinceBecomingResponder: false,\n becameResponderWhileAnimating: false\n };\n },\n\n /**\n * Invoke this from an `onScroll` event.\n */\n scrollResponderHandleScrollShouldSetResponder: function scrollResponderHandleScrollShouldSetResponder() {\n return this.state.isTouching;\n },\n\n /**\n * Merely touch starting is not sufficient for a scroll view to become the\n * responder. Being the \"responder\" means that the very next touch move/end\n * event will result in an action/movement.\n *\n * Invoke this from an `onStartShouldSetResponder` event.\n *\n * `onStartShouldSetResponder` is used when the next move/end will trigger\n * some UI movement/action, but when you want to yield priority to views\n * nested inside of the view.\n *\n * There may be some cases where scroll views actually should return `true`\n * from `onStartShouldSetResponder`: Any time we are detecting a standard tap\n * that gives priority to nested views.\n *\n * - If a single tap on the scroll view triggers an action such as\n * recentering a map style view yet wants to give priority to interaction\n * views inside (such as dropped pins or labels), then we would return true\n * from this method when there is a single touch.\n *\n * - Similar to the previous case, if a two finger \"tap\" should trigger a\n * zoom, we would check the `touches` count, and if `>= 2`, we would return\n * true.\n *\n */\n scrollResponderHandleStartShouldSetResponder: function scrollResponderHandleStartShouldSetResponder() {\n return false;\n },\n\n /**\n * There are times when the scroll view wants to become the responder\n * (meaning respond to the next immediate `touchStart/touchEnd`), in a way\n * that *doesn't* give priority to nested views (hence the capture phase):\n *\n * - Currently animating.\n * - Tapping anywhere that is not the focused input, while the keyboard is\n * up (which should dismiss the keyboard).\n *\n * Invoke this from an `onStartShouldSetResponderCapture` event.\n */\n scrollResponderHandleStartShouldSetResponderCapture: function scrollResponderHandleStartShouldSetResponderCapture(e) {\n // First see if we want to eat taps while the keyboard is up\n // var currentlyFocusedTextInput = TextInputState.currentlyFocusedField();\n // if (!this.props.keyboardShouldPersistTaps &&\n // currentlyFocusedTextInput != null &&\n // e.target !== currentlyFocusedTextInput) {\n // return true;\n // }\n return this.scrollResponderIsAnimating();\n },\n\n /**\n * Invoke this from an `onResponderReject` event.\n *\n * Some other element is not yielding its role as responder. Normally, we'd\n * just disable the `UIScrollView`, but a touch has already began on it, the\n * `UIScrollView` will not accept being disabled after that. The easiest\n * solution for now is to accept the limitation of disallowing this\n * altogether. To improve this, find a way to disable the `UIScrollView` after\n * a touch has already started.\n */\n scrollResponderHandleResponderReject: function scrollResponderHandleResponderReject() {\n warning(false, \"ScrollView doesn't take rejection well - scrolls anyway\");\n },\n\n /**\n * We will allow the scroll view to give up its lock iff it acquired the lock\n * during an animation. This is a very useful default that happens to satisfy\n * many common user experiences.\n *\n * - Stop a scroll on the left edge, then turn that into an outer view's\n * backswipe.\n * - Stop a scroll mid-bounce at the top, continue pulling to have the outer\n * view dismiss.\n * - However, without catching the scroll view mid-bounce (while it is\n * motionless), if you drag far enough for the scroll view to become\n * responder (and therefore drag the scroll view a bit), any backswipe\n * navigation of a swipe gesture higher in the view hierarchy, should be\n * rejected.\n */\n scrollResponderHandleTerminationRequest: function scrollResponderHandleTerminationRequest() {\n return !this.state.observedScrollSinceBecomingResponder;\n },\n\n /**\n * Invoke this from an `onTouchEnd` event.\n *\n * @param {SyntheticEvent} e Event.\n */\n scrollResponderHandleTouchEnd: function scrollResponderHandleTouchEnd(e) {\n var nativeEvent = e.nativeEvent;\n this.state.isTouching = nativeEvent.touches.length !== 0;\n this.props.onTouchEnd && this.props.onTouchEnd(e);\n },\n\n /**\n * Invoke this from an `onResponderRelease` event.\n */\n scrollResponderHandleResponderRelease: function scrollResponderHandleResponderRelease(e) {\n this.props.onResponderRelease && this.props.onResponderRelease(e); // By default scroll views will unfocus a textField\n // if another touch occurs outside of it\n\n var currentlyFocusedTextInput = TextInputState.currentlyFocusedField();\n\n if (!this.props.keyboardShouldPersistTaps && currentlyFocusedTextInput != null && e.target !== currentlyFocusedTextInput && !this.state.observedScrollSinceBecomingResponder && !this.state.becameResponderWhileAnimating) {\n this.props.onScrollResponderKeyboardDismissed && this.props.onScrollResponderKeyboardDismissed(e);\n TextInputState.blurTextInput(currentlyFocusedTextInput);\n }\n },\n scrollResponderHandleScroll: function scrollResponderHandleScroll(e) {\n this.state.observedScrollSinceBecomingResponder = true;\n this.props.onScroll && this.props.onScroll(e);\n },\n\n /**\n * Invoke this from an `onResponderGrant` event.\n */\n scrollResponderHandleResponderGrant: function scrollResponderHandleResponderGrant(e) {\n this.state.observedScrollSinceBecomingResponder = false;\n this.props.onResponderGrant && this.props.onResponderGrant(e);\n this.state.becameResponderWhileAnimating = this.scrollResponderIsAnimating();\n },\n\n /**\n * Unfortunately, `onScrollBeginDrag` also fires when *stopping* the scroll\n * animation, and there's not an easy way to distinguish a drag vs. stopping\n * momentum.\n *\n * Invoke this from an `onScrollBeginDrag` event.\n */\n scrollResponderHandleScrollBeginDrag: function scrollResponderHandleScrollBeginDrag(e) {\n this.props.onScrollBeginDrag && this.props.onScrollBeginDrag(e);\n },\n\n /**\n * Invoke this from an `onScrollEndDrag` event.\n */\n scrollResponderHandleScrollEndDrag: function scrollResponderHandleScrollEndDrag(e) {\n this.props.onScrollEndDrag && this.props.onScrollEndDrag(e);\n },\n\n /**\n * Invoke this from an `onMomentumScrollBegin` event.\n */\n scrollResponderHandleMomentumScrollBegin: function scrollResponderHandleMomentumScrollBegin(e) {\n this.state.lastMomentumScrollBeginTime = Date.now();\n this.props.onMomentumScrollBegin && this.props.onMomentumScrollBegin(e);\n },\n\n /**\n * Invoke this from an `onMomentumScrollEnd` event.\n */\n scrollResponderHandleMomentumScrollEnd: function scrollResponderHandleMomentumScrollEnd(e) {\n this.state.lastMomentumScrollEndTime = Date.now();\n this.props.onMomentumScrollEnd && this.props.onMomentumScrollEnd(e);\n },\n\n /**\n * Invoke this from an `onTouchStart` event.\n *\n * Since we know that the `SimpleEventPlugin` occurs later in the plugin\n * order, after `ResponderEventPlugin`, we can detect that we were *not*\n * permitted to be the responder (presumably because a contained view became\n * responder). The `onResponderReject` won't fire in that case - it only\n * fires when a *current* responder rejects our request.\n *\n * @param {SyntheticEvent} e Touch Start event.\n */\n scrollResponderHandleTouchStart: function scrollResponderHandleTouchStart(e) {\n this.state.isTouching = true;\n this.props.onTouchStart && this.props.onTouchStart(e);\n },\n\n /**\n * Invoke this from an `onTouchMove` event.\n *\n * Since we know that the `SimpleEventPlugin` occurs later in the plugin\n * order, after `ResponderEventPlugin`, we can detect that we were *not*\n * permitted to be the responder (presumably because a contained view became\n * responder). The `onResponderReject` won't fire in that case - it only\n * fires when a *current* responder rejects our request.\n *\n * @param {SyntheticEvent} e Touch Start event.\n */\n scrollResponderHandleTouchMove: function scrollResponderHandleTouchMove(e) {\n this.props.onTouchMove && this.props.onTouchMove(e);\n },\n\n /**\n * A helper function for this class that lets us quickly determine if the\n * view is currently animating. This is particularly useful to know when\n * a touch has just started or ended.\n */\n scrollResponderIsAnimating: function scrollResponderIsAnimating() {\n var now = Date.now();\n var timeSinceLastMomentumScrollEnd = now - this.state.lastMomentumScrollEndTime;\n var isAnimating = timeSinceLastMomentumScrollEnd < IS_ANIMATING_TOUCH_START_THRESHOLD_MS || this.state.lastMomentumScrollEndTime < this.state.lastMomentumScrollBeginTime;\n return isAnimating;\n },\n\n /**\n * Returns the node that represents native view that can be scrolled.\n * Components can pass what node to use by defining a `getScrollableNode`\n * function otherwise `this` is used.\n */\n scrollResponderGetScrollableNode: function scrollResponderGetScrollableNode() {\n return this.getScrollableNode ? this.getScrollableNode() : findNodeHandle(this);\n },\n\n /**\n * A helper function to scroll to a specific point in the scrollview.\n * This is currently used to help focus on child textviews, but can also\n * be used to quickly scroll to any element we want to focus. Syntax:\n *\n * scrollResponderScrollTo(options: {x: number = 0; y: number = 0; animated: boolean = true})\n *\n * Note: The weird argument signature is due to the fact that, for historical reasons,\n * the function also accepts separate arguments as as alternative to the options object.\n * This is deprecated due to ambiguity (y before x), and SHOULD NOT BE USED.\n */\n scrollResponderScrollTo: function scrollResponderScrollTo(x, y, animated) {\n if (typeof x === 'number') {\n console.warn('`scrollResponderScrollTo(x, y, animated)` is deprecated. Use `scrollResponderScrollTo({x: 5, y: 5, animated: true})` instead.');\n } else {\n var _ref = x || emptyObject;\n\n x = _ref.x;\n y = _ref.y;\n animated = _ref.animated;\n }\n\n var node = this.scrollResponderGetScrollableNode();\n var left = x || 0;\n var top = y || 0;\n\n if (typeof node.scroll === 'function') {\n node.scroll({\n top: top,\n left: left,\n behavior: !animated ? 'auto' : 'smooth'\n });\n } else {\n node.scrollLeft = left;\n node.scrollTop = top;\n }\n },\n\n /**\n * Deprecated, do not use.\n */\n scrollResponderScrollWithoutAnimationTo: function scrollResponderScrollWithoutAnimationTo(offsetX, offsetY) {\n console.warn('`scrollResponderScrollWithoutAnimationTo` is deprecated. Use `scrollResponderScrollTo` instead');\n this.scrollResponderScrollTo({\n x: offsetX,\n y: offsetY,\n animated: false\n });\n },\n\n /**\n * A helper function to zoom to a specific rect in the scrollview. The argument has the shape\n * {x: number; y: number; width: number; height: number; animated: boolean = true}\n *\n * @platform ios\n */\n scrollResponderZoomTo: function scrollResponderZoomTo(rect, animated // deprecated, put this inside the rect argument instead\n ) {\n if (Platform.OS !== 'ios') {\n invariant('zoomToRect is not implemented');\n }\n },\n\n /**\n * Displays the scroll indicators momentarily.\n */\n scrollResponderFlashScrollIndicators: function scrollResponderFlashScrollIndicators() {},\n\n /**\n * This method should be used as the callback to onFocus in a TextInputs'\n * parent view. Note that any module using this mixin needs to return\n * the parent view's ref in getScrollViewRef() in order to use this method.\n * @param {any} nodeHandle The TextInput node handle\n * @param {number} additionalOffset The scroll view's top \"contentInset\".\n * Default is 0.\n * @param {bool} preventNegativeScrolling Whether to allow pulling the content\n * down to make it meet the keyboard's top. Default is false.\n */\n scrollResponderScrollNativeHandleToKeyboard: function scrollResponderScrollNativeHandleToKeyboard(nodeHandle, additionalOffset, preventNegativeScrollOffset) {\n this.additionalScrollOffset = additionalOffset || 0;\n this.preventNegativeScrollOffset = !!preventNegativeScrollOffset;\n UIManager.measureLayout(nodeHandle, findNodeHandle(this.getInnerViewNode()), this.scrollResponderTextInputFocusError, this.scrollResponderInputMeasureAndScrollToKeyboard);\n },\n\n /**\n * The calculations performed here assume the scroll view takes up the entire\n * screen - even if has some content inset. We then measure the offsets of the\n * keyboard, and compensate both for the scroll view's \"contentInset\".\n *\n * @param {number} left Position of input w.r.t. table view.\n * @param {number} top Position of input w.r.t. table view.\n * @param {number} width Width of the text input.\n * @param {number} height Height of the text input.\n */\n scrollResponderInputMeasureAndScrollToKeyboard: function scrollResponderInputMeasureAndScrollToKeyboard(left, top, width, height) {\n var keyboardScreenY = Dimensions.get('window').height;\n\n if (this.keyboardWillOpenTo) {\n keyboardScreenY = this.keyboardWillOpenTo.endCoordinates.screenY;\n }\n\n var scrollOffsetY = top - keyboardScreenY + height + this.additionalScrollOffset; // By default, this can scroll with negative offset, pulling the content\n // down so that the target component's bottom meets the keyboard's top.\n // If requested otherwise, cap the offset at 0 minimum to avoid content\n // shifting down.\n\n if (this.preventNegativeScrollOffset) {\n scrollOffsetY = Math.max(0, scrollOffsetY);\n }\n\n this.scrollResponderScrollTo({\n x: 0,\n y: scrollOffsetY,\n animated: true\n });\n this.additionalOffset = 0;\n this.preventNegativeScrollOffset = false;\n },\n scrollResponderTextInputFocusError: function scrollResponderTextInputFocusError(e) {\n console.error('Error measuring text field: ', e);\n },\n\n /**\n * `componentWillMount` is the closest thing to a standard \"constructor\" for\n * React components.\n *\n * The `keyboardWillShow` is called before input focus.\n */\n componentWillMount: function componentWillMount() {\n this.keyboardWillOpenTo = null;\n this.additionalScrollOffset = 0; // this.addListenerOn(RCTDeviceEventEmitter, 'keyboardWillShow', this.scrollResponderKeyboardWillShow);\n // this.addListenerOn(RCTDeviceEventEmitter, 'keyboardWillHide', this.scrollResponderKeyboardWillHide);\n // this.addListenerOn(RCTDeviceEventEmitter, 'keyboardDidShow', this.scrollResponderKeyboardDidShow);\n // this.addListenerOn(RCTDeviceEventEmitter, 'keyboardDidHide', this.scrollResponderKeyboardDidHide);\n },\n\n /**\n * Warning, this may be called several times for a single keyboard opening.\n * It's best to store the information in this method and then take any action\n * at a later point (either in `keyboardDidShow` or other).\n *\n * Here's the order that events occur in:\n * - focus\n * - willShow {startCoordinates, endCoordinates} several times\n * - didShow several times\n * - blur\n * - willHide {startCoordinates, endCoordinates} several times\n * - didHide several times\n *\n * The `ScrollResponder` providesModule callbacks for each of these events.\n * Even though any user could have easily listened to keyboard events\n * themselves, using these `props` callbacks ensures that ordering of events\n * is consistent - and not dependent on the order that the keyboard events are\n * subscribed to. This matters when telling the scroll view to scroll to where\n * the keyboard is headed - the scroll responder better have been notified of\n * the keyboard destination before being instructed to scroll to where the\n * keyboard will be. Stick to the `ScrollResponder` callbacks, and everything\n * will work.\n *\n * WARNING: These callbacks will fire even if a keyboard is displayed in a\n * different navigation pane. Filter out the events to determine if they are\n * relevant to you. (For example, only if you receive these callbacks after\n * you had explicitly focused a node etc).\n */\n scrollResponderKeyboardWillShow: function scrollResponderKeyboardWillShow(e) {\n this.keyboardWillOpenTo = e;\n this.props.onKeyboardWillShow && this.props.onKeyboardWillShow(e);\n },\n scrollResponderKeyboardWillHide: function scrollResponderKeyboardWillHide(e) {\n this.keyboardWillOpenTo = null;\n this.props.onKeyboardWillHide && this.props.onKeyboardWillHide(e);\n },\n scrollResponderKeyboardDidShow: function scrollResponderKeyboardDidShow(e) {\n // TODO(7693961): The event for DidShow is not available on iOS yet.\n // Use the one from WillShow and do not assign.\n if (e) {\n this.keyboardWillOpenTo = e;\n }\n\n this.props.onKeyboardDidShow && this.props.onKeyboardDidShow(e);\n },\n scrollResponderKeyboardDidHide: function scrollResponderKeyboardDidHide(e) {\n this.keyboardWillOpenTo = null;\n this.props.onKeyboardDidHide && this.props.onKeyboardDidHide(e);\n }\n};\nvar ScrollResponder = {\n Mixin: ScrollResponderMixin\n};\nexport default ScrollResponder;","/**\n * Copyright (c) Nicolas Gallagher.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n */\nimport TextInputState from '../TextInputState';\n\nvar dismissKeyboard = function dismissKeyboard() {\n TextInputState.blurTextInput(TextInputState.currentlyFocusedField());\n};\n\nexport default dismissKeyboard;","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n */\n\nfunction componentWillMount() {\n // Call this.constructor.gDSFP to support sub-classes.\n var state = this.constructor.getDerivedStateFromProps(this.props, this.state);\n if (state !== null && state !== undefined) {\n this.setState(state);\n }\n}\n\nfunction componentWillReceiveProps(nextProps) {\n // Call this.constructor.gDSFP to support sub-classes.\n // Use the setState() updater to ensure state isn't stale in certain edge cases.\n function updater(prevState) {\n var state = this.constructor.getDerivedStateFromProps(nextProps, prevState);\n return state !== null && state !== undefined ? state : null;\n }\n // Binding \"this\" is important for shallow renderer support.\n this.setState(updater.bind(this));\n}\n\nfunction componentWillUpdate(nextProps, nextState) {\n try {\n var prevProps = this.props;\n var prevState = this.state;\n this.props = nextProps;\n this.state = nextState;\n this.__reactInternalSnapshotFlag = true;\n this.__reactInternalSnapshot = this.getSnapshotBeforeUpdate(\n prevProps,\n prevState\n );\n } finally {\n this.props = prevProps;\n this.state = prevState;\n }\n}\n\n// React may warn about cWM/cWRP/cWU methods being deprecated.\n// Add a flag to suppress these warnings for this special case.\ncomponentWillMount.__suppressDeprecationWarning = true;\ncomponentWillReceiveProps.__suppressDeprecationWarning = true;\ncomponentWillUpdate.__suppressDeprecationWarning = true;\n\nfunction polyfill(Component) {\n var prototype = Component.prototype;\n\n if (!prototype || !prototype.isReactComponent) {\n throw new Error('Can only polyfill class components');\n }\n\n if (\n typeof Component.getDerivedStateFromProps !== 'function' &&\n typeof prototype.getSnapshotBeforeUpdate !== 'function'\n ) {\n return Component;\n }\n\n // If new component APIs are defined, \"unsafe\" lifecycles won't be called.\n // Error if any of these lifecycles are present,\n // Because they would work differently between older and newer (16.3+) versions of React.\n var foundWillMountName = null;\n var foundWillReceivePropsName = null;\n var foundWillUpdateName = null;\n if (typeof prototype.componentWillMount === 'function') {\n foundWillMountName = 'componentWillMount';\n } else if (typeof prototype.UNSAFE_componentWillMount === 'function') {\n foundWillMountName = 'UNSAFE_componentWillMount';\n }\n if (typeof prototype.componentWillReceiveProps === 'function') {\n foundWillReceivePropsName = 'componentWillReceiveProps';\n } else if (typeof prototype.UNSAFE_componentWillReceiveProps === 'function') {\n foundWillReceivePropsName = 'UNSAFE_componentWillReceiveProps';\n }\n if (typeof prototype.componentWillUpdate === 'function') {\n foundWillUpdateName = 'componentWillUpdate';\n } else if (typeof prototype.UNSAFE_componentWillUpdate === 'function') {\n foundWillUpdateName = 'UNSAFE_componentWillUpdate';\n }\n if (\n foundWillMountName !== null ||\n foundWillReceivePropsName !== null ||\n foundWillUpdateName !== null\n ) {\n var componentName = Component.displayName || Component.name;\n var newApiName =\n typeof Component.getDerivedStateFromProps === 'function'\n ? 'getDerivedStateFromProps()'\n : 'getSnapshotBeforeUpdate()';\n\n throw Error(\n 'Unsafe legacy lifecycles will not be called for components using new component APIs.\\n\\n' +\n componentName +\n ' uses ' +\n newApiName +\n ' but also contains the following legacy lifecycles:' +\n (foundWillMountName !== null ? '\\n ' + foundWillMountName : '') +\n (foundWillReceivePropsName !== null\n ? '\\n ' + foundWillReceivePropsName\n : '') +\n (foundWillUpdateName !== null ? '\\n ' + foundWillUpdateName : '') +\n '\\n\\nThe above lifecycles should be removed. Learn more about this warning here:\\n' +\n 'https://fb.me/react-async-component-lifecycle-hooks'\n );\n }\n\n // React <= 16.2 does not support static getDerivedStateFromProps.\n // As a workaround, use cWM and cWRP to invoke the new static lifecycle.\n // Newer versions of React will ignore these lifecycles if gDSFP exists.\n if (typeof Component.getDerivedStateFromProps === 'function') {\n prototype.componentWillMount = componentWillMount;\n prototype.componentWillReceiveProps = componentWillReceiveProps;\n }\n\n // React <= 16.2 does not support getSnapshotBeforeUpdate.\n // As a workaround, use cWU to invoke the new lifecycle.\n // Newer versions of React will ignore that lifecycle if gSBU exists.\n if (typeof prototype.getSnapshotBeforeUpdate === 'function') {\n if (typeof prototype.componentDidUpdate !== 'function') {\n throw new Error(\n 'Cannot polyfill getSnapshotBeforeUpdate() for components that do not define componentDidUpdate() on the prototype'\n );\n }\n\n prototype.componentWillUpdate = componentWillUpdate;\n\n var componentDidUpdate = prototype.componentDidUpdate;\n\n prototype.componentDidUpdate = function componentDidUpdatePolyfill(\n prevProps,\n prevState,\n maybeSnapshot\n ) {\n // 16.3+ will not execute our will-update method;\n // It will pass a snapshot value to did-update though.\n // Older versions will require our polyfilled will-update value.\n // We need to handle both cases, but can't just check for the presence of \"maybeSnapshot\",\n // Because for <= 15.x versions this might be a \"prevContext\" object.\n // We also can't just check \"__reactInternalSnapshot\",\n // Because get-snapshot might return a falsy value.\n // So check for the explicit __reactInternalSnapshotFlag flag to determine behavior.\n var snapshot = this.__reactInternalSnapshotFlag\n ? this.__reactInternalSnapshot\n : maybeSnapshot;\n\n componentDidUpdate.call(this, prevProps, prevState, snapshot);\n };\n }\n\n return Component;\n}\n\nexport { polyfill };\n","/* @flow */\n\nimport React from 'react';\nimport { Animated, View, StyleSheet } from 'react-native';\n\ntype Props = {\n route: any,\n horizontal?: boolean,\n activeOpacity: any,\n inactiveOpacity: any,\n activeTintColor: any,\n inactiveTintColor: any,\n renderIcon: any,\n style: any,\n};\n\nexport default class TabBarIcon extends React.Component {\n render() {\n const {\n route,\n activeOpacity,\n inactiveOpacity,\n activeTintColor,\n inactiveTintColor,\n renderIcon,\n horizontal,\n style,\n } = this.props;\n\n // We render the icon twice at the same position on top of each other:\n // active and inactive one, so we can fade between them.\n return (\n \n \n {renderIcon({\n route,\n focused: true,\n horizontal,\n tintColor: activeTintColor,\n })}\n \n \n {renderIcon({\n route,\n focused: false,\n horizontal,\n tintColor: inactiveTintColor,\n })}\n \n \n );\n }\n}\n\nconst styles = StyleSheet.create({\n icon: {\n // We render the icon twice at the same position on top of each other:\n // active and inactive one, so we can fade between them:\n // Cover the whole iconContainer:\n position: 'absolute',\n alignSelf: 'center',\n alignItems: 'center',\n justifyContent: 'center',\n height: '100%',\n width: '100%',\n // Workaround for react-native >= 0.54 layout bug\n minWidth: 25,\n },\n});\n","/* @flow */\n\nimport * as React from 'react';\nimport { Platform, StyleSheet, View } from 'react-native';\n\n// eslint-disable-next-line import/no-unresolved\nimport { Screen, screensEnabled } from 'react-native-screens';\n\ntype Props = {\n isVisible: boolean,\n children: React.Node,\n style?: any,\n};\n\nconst FAR_FAR_AWAY = 3000; // this should be big enough to move the whole view out of its container\n\nexport default class ResourceSavingScene extends React.Component {\n render() {\n if (screensEnabled && screensEnabled()) {\n const { isVisible, ...rest } = this.props;\n return ;\n }\n const { isVisible, children, style, ...rest } = this.props;\n\n return (\n \n \n {children}\n \n \n );\n }\n}\n\nconst styles = StyleSheet.create({\n container: {\n flex: 1,\n overflow: 'hidden',\n },\n attached: {\n flex: 1,\n },\n detached: {\n flex: 1,\n top: FAR_FAR_AWAY,\n },\n});\n","import React from 'react';\n\nexport default React.createContext(null);","import $$observable from 'symbol-observable';\n\n/**\n * These are private action types reserved by Redux.\n * For any unknown actions, you must return the current state.\n * If the current state is undefined, you must return the initial state.\n * Do not reference these action types directly in your code.\n */\nvar randomString = function randomString() {\n return Math.random().toString(36).substring(7).split('').join('.');\n};\n\nvar ActionTypes = {\n INIT: \"@@redux/INIT\" + randomString(),\n REPLACE: \"@@redux/REPLACE\" + randomString(),\n PROBE_UNKNOWN_ACTION: function PROBE_UNKNOWN_ACTION() {\n return \"@@redux/PROBE_UNKNOWN_ACTION\" + randomString();\n }\n};\n\n/**\n * @param {any} obj The object to inspect.\n * @returns {boolean} True if the argument appears to be a plain object.\n */\nfunction isPlainObject(obj) {\n if (typeof obj !== 'object' || obj === null) return false;\n var proto = obj;\n\n while (Object.getPrototypeOf(proto) !== null) {\n proto = Object.getPrototypeOf(proto);\n }\n\n return Object.getPrototypeOf(obj) === proto;\n}\n\n/**\n * Creates a Redux store that holds the state tree.\n * The only way to change the data in the store is to call `dispatch()` on it.\n *\n * There should only be a single store in your app. To specify how different\n * parts of the state tree respond to actions, you may combine several reducers\n * into a single reducer function by using `combineReducers`.\n *\n * @param {Function} reducer A function that returns the next state tree, given\n * the current state tree and the action to handle.\n *\n * @param {any} [preloadedState] The initial state. You may optionally specify it\n * to hydrate the state from the server in universal apps, or to restore a\n * previously serialized user session.\n * If you use `combineReducers` to produce the root reducer function, this must be\n * an object with the same shape as `combineReducers` keys.\n *\n * @param {Function} [enhancer] The store enhancer. You may optionally specify it\n * to enhance the store with third-party capabilities such as middleware,\n * time travel, persistence, etc. The only store enhancer that ships with Redux\n * is `applyMiddleware()`.\n *\n * @returns {Store} A Redux store that lets you read the state, dispatch actions\n * and subscribe to changes.\n */\n\nfunction createStore(reducer, preloadedState, enhancer) {\n var _ref2;\n\n if (typeof preloadedState === 'function' && typeof enhancer === 'function' || typeof enhancer === 'function' && typeof arguments[3] === 'function') {\n throw new Error('It looks like you are passing several store enhancers to ' + 'createStore(). This is not supported. Instead, compose them ' + 'together to a single function.');\n }\n\n if (typeof preloadedState === 'function' && typeof enhancer === 'undefined') {\n enhancer = preloadedState;\n preloadedState = undefined;\n }\n\n if (typeof enhancer !== 'undefined') {\n if (typeof enhancer !== 'function') {\n throw new Error('Expected the enhancer to be a function.');\n }\n\n return enhancer(createStore)(reducer, preloadedState);\n }\n\n if (typeof reducer !== 'function') {\n throw new Error('Expected the reducer to be a function.');\n }\n\n var currentReducer = reducer;\n var currentState = preloadedState;\n var currentListeners = [];\n var nextListeners = currentListeners;\n var isDispatching = false;\n /**\n * This makes a shallow copy of currentListeners so we can use\n * nextListeners as a temporary list while dispatching.\n *\n * This prevents any bugs around consumers calling\n * subscribe/unsubscribe in the middle of a dispatch.\n */\n\n function ensureCanMutateNextListeners() {\n if (nextListeners === currentListeners) {\n nextListeners = currentListeners.slice();\n }\n }\n /**\n * Reads the state tree managed by the store.\n *\n * @returns {any} The current state tree of your application.\n */\n\n\n function getState() {\n if (isDispatching) {\n throw new Error('You may not call store.getState() while the reducer is executing. ' + 'The reducer has already received the state as an argument. ' + 'Pass it down from the top reducer instead of reading it from the store.');\n }\n\n return currentState;\n }\n /**\n * Adds a change listener. It will be called any time an action is dispatched,\n * and some part of the state tree may potentially have changed. You may then\n * call `getState()` to read the current state tree inside the callback.\n *\n * You may call `dispatch()` from a change listener, with the following\n * caveats:\n *\n * 1. The subscriptions are snapshotted just before every `dispatch()` call.\n * If you subscribe or unsubscribe while the listeners are being invoked, this\n * will not have any effect on the `dispatch()` that is currently in progress.\n * However, the next `dispatch()` call, whether nested or not, will use a more\n * recent snapshot of the subscription list.\n *\n * 2. The listener should not expect to see all state changes, as the state\n * might have been updated multiple times during a nested `dispatch()` before\n * the listener is called. It is, however, guaranteed that all subscribers\n * registered before the `dispatch()` started will be called with the latest\n * state by the time it exits.\n *\n * @param {Function} listener A callback to be invoked on every dispatch.\n * @returns {Function} A function to remove this change listener.\n */\n\n\n function subscribe(listener) {\n if (typeof listener !== 'function') {\n throw new Error('Expected the listener to be a function.');\n }\n\n if (isDispatching) {\n throw new Error('You may not call store.subscribe() while the reducer is executing. ' + 'If you would like to be notified after the store has been updated, subscribe from a ' + 'component and invoke store.getState() in the callback to access the latest state. ' + 'See https://redux.js.org/api-reference/store#subscribe(listener) for more details.');\n }\n\n var isSubscribed = true;\n ensureCanMutateNextListeners();\n nextListeners.push(listener);\n return function unsubscribe() {\n if (!isSubscribed) {\n return;\n }\n\n if (isDispatching) {\n throw new Error('You may not unsubscribe from a store listener while the reducer is executing. ' + 'See https://redux.js.org/api-reference/store#subscribe(listener) for more details.');\n }\n\n isSubscribed = false;\n ensureCanMutateNextListeners();\n var index = nextListeners.indexOf(listener);\n nextListeners.splice(index, 1);\n };\n }\n /**\n * Dispatches an action. It is the only way to trigger a state change.\n *\n * The `reducer` function, used to create the store, will be called with the\n * current state tree and the given `action`. Its return value will\n * be considered the **next** state of the tree, and the change listeners\n * will be notified.\n *\n * The base implementation only supports plain object actions. If you want to\n * dispatch a Promise, an Observable, a thunk, or something else, you need to\n * wrap your store creating function into the corresponding middleware. For\n * example, see the documentation for the `redux-thunk` package. Even the\n * middleware will eventually dispatch plain object actions using this method.\n *\n * @param {Object} action A plain object representing “what changed”. It is\n * a good idea to keep actions serializable so you can record and replay user\n * sessions, or use the time travelling `redux-devtools`. An action must have\n * a `type` property which may not be `undefined`. It is a good idea to use\n * string constants for action types.\n *\n * @returns {Object} For convenience, the same action object you dispatched.\n *\n * Note that, if you use a custom middleware, it may wrap `dispatch()` to\n * return something else (for example, a Promise you can await).\n */\n\n\n function dispatch(action) {\n if (!isPlainObject(action)) {\n throw new Error('Actions must be plain objects. ' + 'Use custom middleware for async actions.');\n }\n\n if (typeof action.type === 'undefined') {\n throw new Error('Actions may not have an undefined \"type\" property. ' + 'Have you misspelled a constant?');\n }\n\n if (isDispatching) {\n throw new Error('Reducers may not dispatch actions.');\n }\n\n try {\n isDispatching = true;\n currentState = currentReducer(currentState, action);\n } finally {\n isDispatching = false;\n }\n\n var listeners = currentListeners = nextListeners;\n\n for (var i = 0; i < listeners.length; i++) {\n var listener = listeners[i];\n listener();\n }\n\n return action;\n }\n /**\n * Replaces the reducer currently used by the store to calculate the state.\n *\n * You might need this if your app implements code splitting and you want to\n * load some of the reducers dynamically. You might also need this if you\n * implement a hot reloading mechanism for Redux.\n *\n * @param {Function} nextReducer The reducer for the store to use instead.\n * @returns {void}\n */\n\n\n function replaceReducer(nextReducer) {\n if (typeof nextReducer !== 'function') {\n throw new Error('Expected the nextReducer to be a function.');\n }\n\n currentReducer = nextReducer; // This action has a similiar effect to ActionTypes.INIT.\n // Any reducers that existed in both the new and old rootReducer\n // will receive the previous state. This effectively populates\n // the new state tree with any relevant data from the old one.\n\n dispatch({\n type: ActionTypes.REPLACE\n });\n }\n /**\n * Interoperability point for observable/reactive libraries.\n * @returns {observable} A minimal observable of state changes.\n * For more information, see the observable proposal:\n * https://github.com/tc39/proposal-observable\n */\n\n\n function observable() {\n var _ref;\n\n var outerSubscribe = subscribe;\n return _ref = {\n /**\n * The minimal observable subscription method.\n * @param {Object} observer Any object that can be used as an observer.\n * The observer object should have a `next` method.\n * @returns {subscription} An object with an `unsubscribe` method that can\n * be used to unsubscribe the observable from the store, and prevent further\n * emission of values from the observable.\n */\n subscribe: function subscribe(observer) {\n if (typeof observer !== 'object' || observer === null) {\n throw new TypeError('Expected the observer to be an object.');\n }\n\n function observeState() {\n if (observer.next) {\n observer.next(getState());\n }\n }\n\n observeState();\n var unsubscribe = outerSubscribe(observeState);\n return {\n unsubscribe: unsubscribe\n };\n }\n }, _ref[$$observable] = function () {\n return this;\n }, _ref;\n } // When a store is created, an \"INIT\" action is dispatched so that every\n // reducer returns their initial state. This effectively populates\n // the initial state tree.\n\n\n dispatch({\n type: ActionTypes.INIT\n });\n return _ref2 = {\n dispatch: dispatch,\n subscribe: subscribe,\n getState: getState,\n replaceReducer: replaceReducer\n }, _ref2[$$observable] = observable, _ref2;\n}\n\n/**\n * Prints a warning in the console if it exists.\n *\n * @param {String} message The warning message.\n * @returns {void}\n */\nfunction warning(message) {\n /* eslint-disable no-console */\n if (typeof console !== 'undefined' && typeof console.error === 'function') {\n console.error(message);\n }\n /* eslint-enable no-console */\n\n\n try {\n // This error was thrown as a convenience so that if you enable\n // \"break on all exceptions\" in your console,\n // it would pause the execution at this line.\n throw new Error(message);\n } catch (e) {} // eslint-disable-line no-empty\n\n}\n\nfunction getUndefinedStateErrorMessage(key, action) {\n var actionType = action && action.type;\n var actionDescription = actionType && \"action \\\"\" + String(actionType) + \"\\\"\" || 'an action';\n return \"Given \" + actionDescription + \", reducer \\\"\" + key + \"\\\" returned undefined. \" + \"To ignore an action, you must explicitly return the previous state. \" + \"If you want this reducer to hold no value, you can return null instead of undefined.\";\n}\n\nfunction getUnexpectedStateShapeWarningMessage(inputState, reducers, action, unexpectedKeyCache) {\n var reducerKeys = Object.keys(reducers);\n var argumentName = action && action.type === ActionTypes.INIT ? 'preloadedState argument passed to createStore' : 'previous state received by the reducer';\n\n if (reducerKeys.length === 0) {\n return 'Store does not have a valid reducer. Make sure the argument passed ' + 'to combineReducers is an object whose values are reducers.';\n }\n\n if (!isPlainObject(inputState)) {\n return \"The \" + argumentName + \" has unexpected type of \\\"\" + {}.toString.call(inputState).match(/\\s([a-z|A-Z]+)/)[1] + \"\\\". Expected argument to be an object with the following \" + (\"keys: \\\"\" + reducerKeys.join('\", \"') + \"\\\"\");\n }\n\n var unexpectedKeys = Object.keys(inputState).filter(function (key) {\n return !reducers.hasOwnProperty(key) && !unexpectedKeyCache[key];\n });\n unexpectedKeys.forEach(function (key) {\n unexpectedKeyCache[key] = true;\n });\n if (action && action.type === ActionTypes.REPLACE) return;\n\n if (unexpectedKeys.length > 0) {\n return \"Unexpected \" + (unexpectedKeys.length > 1 ? 'keys' : 'key') + \" \" + (\"\\\"\" + unexpectedKeys.join('\", \"') + \"\\\" found in \" + argumentName + \". \") + \"Expected to find one of the known reducer keys instead: \" + (\"\\\"\" + reducerKeys.join('\", \"') + \"\\\". Unexpected keys will be ignored.\");\n }\n}\n\nfunction assertReducerShape(reducers) {\n Object.keys(reducers).forEach(function (key) {\n var reducer = reducers[key];\n var initialState = reducer(undefined, {\n type: ActionTypes.INIT\n });\n\n if (typeof initialState === 'undefined') {\n throw new Error(\"Reducer \\\"\" + key + \"\\\" returned undefined during initialization. \" + \"If the state passed to the reducer is undefined, you must \" + \"explicitly return the initial state. The initial state may \" + \"not be undefined. If you don't want to set a value for this reducer, \" + \"you can use null instead of undefined.\");\n }\n\n if (typeof reducer(undefined, {\n type: ActionTypes.PROBE_UNKNOWN_ACTION()\n }) === 'undefined') {\n throw new Error(\"Reducer \\\"\" + key + \"\\\" returned undefined when probed with a random type. \" + (\"Don't try to handle \" + ActionTypes.INIT + \" or other actions in \\\"redux/*\\\" \") + \"namespace. They are considered private. Instead, you must return the \" + \"current state for any unknown actions, unless it is undefined, \" + \"in which case you must return the initial state, regardless of the \" + \"action type. The initial state may not be undefined, but can be null.\");\n }\n });\n}\n/**\n * Turns an object whose values are different reducer functions, into a single\n * reducer function. It will call every child reducer, and gather their results\n * into a single state object, whose keys correspond to the keys of the passed\n * reducer functions.\n *\n * @param {Object} reducers An object whose values correspond to different\n * reducer functions that need to be combined into one. One handy way to obtain\n * it is to use ES6 `import * as reducers` syntax. The reducers may never return\n * undefined for any action. Instead, they should return their initial state\n * if the state passed to them was undefined, and the current state for any\n * unrecognized action.\n *\n * @returns {Function} A reducer function that invokes every reducer inside the\n * passed object, and builds a state object with the same shape.\n */\n\n\nfunction combineReducers(reducers) {\n var reducerKeys = Object.keys(reducers);\n var finalReducers = {};\n\n for (var i = 0; i < reducerKeys.length; i++) {\n var key = reducerKeys[i];\n\n if (process.env.NODE_ENV !== 'production') {\n if (typeof reducers[key] === 'undefined') {\n warning(\"No reducer provided for key \\\"\" + key + \"\\\"\");\n }\n }\n\n if (typeof reducers[key] === 'function') {\n finalReducers[key] = reducers[key];\n }\n }\n\n var finalReducerKeys = Object.keys(finalReducers); // This is used to make sure we don't warn about the same\n // keys multiple times.\n\n var unexpectedKeyCache;\n\n if (process.env.NODE_ENV !== 'production') {\n unexpectedKeyCache = {};\n }\n\n var shapeAssertionError;\n\n try {\n assertReducerShape(finalReducers);\n } catch (e) {\n shapeAssertionError = e;\n }\n\n return function combination(state, action) {\n if (state === void 0) {\n state = {};\n }\n\n if (shapeAssertionError) {\n throw shapeAssertionError;\n }\n\n if (process.env.NODE_ENV !== 'production') {\n var warningMessage = getUnexpectedStateShapeWarningMessage(state, finalReducers, action, unexpectedKeyCache);\n\n if (warningMessage) {\n warning(warningMessage);\n }\n }\n\n var hasChanged = false;\n var nextState = {};\n\n for (var _i = 0; _i < finalReducerKeys.length; _i++) {\n var _key = finalReducerKeys[_i];\n var reducer = finalReducers[_key];\n var previousStateForKey = state[_key];\n var nextStateForKey = reducer(previousStateForKey, action);\n\n if (typeof nextStateForKey === 'undefined') {\n var errorMessage = getUndefinedStateErrorMessage(_key, action);\n throw new Error(errorMessage);\n }\n\n nextState[_key] = nextStateForKey;\n hasChanged = hasChanged || nextStateForKey !== previousStateForKey;\n }\n\n return hasChanged ? nextState : state;\n };\n}\n\nfunction bindActionCreator(actionCreator, dispatch) {\n return function () {\n return dispatch(actionCreator.apply(this, arguments));\n };\n}\n/**\n * Turns an object whose values are action creators, into an object with the\n * same keys, but with every function wrapped into a `dispatch` call so they\n * may be invoked directly. This is just a convenience method, as you can call\n * `store.dispatch(MyActionCreators.doSomething())` yourself just fine.\n *\n * For convenience, you can also pass an action creator as the first argument,\n * and get a dispatch wrapped function in return.\n *\n * @param {Function|Object} actionCreators An object whose values are action\n * creator functions. One handy way to obtain it is to use ES6 `import * as`\n * syntax. You may also pass a single function.\n *\n * @param {Function} dispatch The `dispatch` function available on your Redux\n * store.\n *\n * @returns {Function|Object} The object mimicking the original object, but with\n * every action creator wrapped into the `dispatch` call. If you passed a\n * function as `actionCreators`, the return value will also be a single\n * function.\n */\n\n\nfunction bindActionCreators(actionCreators, dispatch) {\n if (typeof actionCreators === 'function') {\n return bindActionCreator(actionCreators, dispatch);\n }\n\n if (typeof actionCreators !== 'object' || actionCreators === null) {\n throw new Error(\"bindActionCreators expected an object or a function, instead received \" + (actionCreators === null ? 'null' : typeof actionCreators) + \". \" + \"Did you write \\\"import ActionCreators from\\\" instead of \\\"import * as ActionCreators from\\\"?\");\n }\n\n var boundActionCreators = {};\n\n for (var key in actionCreators) {\n var actionCreator = actionCreators[key];\n\n if (typeof actionCreator === 'function') {\n boundActionCreators[key] = bindActionCreator(actionCreator, dispatch);\n }\n }\n\n return boundActionCreators;\n}\n\nfunction _defineProperty(obj, key, value) {\n if (key in obj) {\n Object.defineProperty(obj, key, {\n value: value,\n enumerable: true,\n configurable: true,\n writable: true\n });\n } else {\n obj[key] = value;\n }\n\n return obj;\n}\n\nfunction ownKeys(object, enumerableOnly) {\n var keys = Object.keys(object);\n\n if (Object.getOwnPropertySymbols) {\n keys.push.apply(keys, Object.getOwnPropertySymbols(object));\n }\n\n if (enumerableOnly) keys = keys.filter(function (sym) {\n return Object.getOwnPropertyDescriptor(object, sym).enumerable;\n });\n return keys;\n}\n\nfunction _objectSpread2(target) {\n for (var i = 1; i < arguments.length; i++) {\n var source = arguments[i] != null ? arguments[i] : {};\n\n if (i % 2) {\n ownKeys(source, true).forEach(function (key) {\n _defineProperty(target, key, source[key]);\n });\n } else if (Object.getOwnPropertyDescriptors) {\n Object.defineProperties(target, Object.getOwnPropertyDescriptors(source));\n } else {\n ownKeys(source).forEach(function (key) {\n Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key));\n });\n }\n }\n\n return target;\n}\n\n/**\n * Composes single-argument functions from right to left. The rightmost\n * function can take multiple arguments as it provides the signature for\n * the resulting composite function.\n *\n * @param {...Function} funcs The functions to compose.\n * @returns {Function} A function obtained by composing the argument functions\n * from right to left. For example, compose(f, g, h) is identical to doing\n * (...args) => f(g(h(...args))).\n */\nfunction compose() {\n for (var _len = arguments.length, funcs = new Array(_len), _key = 0; _key < _len; _key++) {\n funcs[_key] = arguments[_key];\n }\n\n if (funcs.length === 0) {\n return function (arg) {\n return arg;\n };\n }\n\n if (funcs.length === 1) {\n return funcs[0];\n }\n\n return funcs.reduce(function (a, b) {\n return function () {\n return a(b.apply(void 0, arguments));\n };\n });\n}\n\n/**\n * Creates a store enhancer that applies middleware to the dispatch method\n * of the Redux store. This is handy for a variety of tasks, such as expressing\n * asynchronous actions in a concise manner, or logging every action payload.\n *\n * See `redux-thunk` package as an example of the Redux middleware.\n *\n * Because middleware is potentially asynchronous, this should be the first\n * store enhancer in the composition chain.\n *\n * Note that each middleware will be given the `dispatch` and `getState` functions\n * as named arguments.\n *\n * @param {...Function} middlewares The middleware chain to be applied.\n * @returns {Function} A store enhancer applying the middleware.\n */\n\nfunction applyMiddleware() {\n for (var _len = arguments.length, middlewares = new Array(_len), _key = 0; _key < _len; _key++) {\n middlewares[_key] = arguments[_key];\n }\n\n return function (createStore) {\n return function () {\n var store = createStore.apply(void 0, arguments);\n\n var _dispatch = function dispatch() {\n throw new Error('Dispatching while constructing your middleware is not allowed. ' + 'Other middleware would not be applied to this dispatch.');\n };\n\n var middlewareAPI = {\n getState: store.getState,\n dispatch: function dispatch() {\n return _dispatch.apply(void 0, arguments);\n }\n };\n var chain = middlewares.map(function (middleware) {\n return middleware(middlewareAPI);\n });\n _dispatch = compose.apply(void 0, chain)(store.dispatch);\n return _objectSpread2({}, store, {\n dispatch: _dispatch\n });\n };\n };\n}\n\n/*\n * This is a dummy function to check if the function name has been altered by minification.\n * If the function has been minified and NODE_ENV !== 'production', warn the user.\n */\n\nfunction isCrushed() {}\n\nif (process.env.NODE_ENV !== 'production' && typeof isCrushed.name === 'string' && isCrushed.name !== 'isCrushed') {\n warning('You are currently using minified code outside of NODE_ENV === \"production\". ' + 'This means that you are running a slower development build of Redux. ' + 'You can use loose-envify (https://github.com/zertosh/loose-envify) for browserify ' + 'or setting mode to production in webpack (https://webpack.js.org/concepts/mode/) ' + 'to ensure you have the correct code for your production build.');\n}\n\nexport { ActionTypes as __DO_NOT_USE__ActionTypes, applyMiddleware, bindActionCreators, combineReducers, compose, createStore };\n","'use strict';\n\n\nmodule.exports = require('./lib/');\n","import React from 'react';\nexport var ReactReduxContext = React.createContext(null);\nexport default ReactReduxContext;","// Default to a dummy \"batch\" implementation that just runs the callback\nfunction defaultNoopBatch(callback) {\n callback();\n}\n\nvar batch = defaultNoopBatch; // Allow injecting another batching function later\n\nexport var setBatch = function setBatch(newBatch) {\n return batch = newBatch;\n}; // Supply a getter just to skip dealing with ESM bindings\n\nexport var getBatch = function getBatch() {\n return batch;\n};","import { getBatch } from './batch'; // encapsulates the subscription logic for connecting a component to the redux store, as\n// well as nesting subscriptions of descendant components, so that we can ensure the\n// ancestor components re-render before descendants\n\nvar CLEARED = null;\nvar nullListeners = {\n notify: function notify() {}\n};\n\nfunction createListenerCollection() {\n var batch = getBatch(); // the current/next pattern is copied from redux's createStore code.\n // TODO: refactor+expose that code to be reusable here?\n\n var current = [];\n var next = [];\n return {\n clear: function clear() {\n next = CLEARED;\n current = CLEARED;\n },\n notify: function notify() {\n var listeners = current = next;\n batch(function () {\n for (var i = 0; i < listeners.length; i++) {\n listeners[i]();\n }\n });\n },\n get: function get() {\n return next;\n },\n subscribe: function subscribe(listener) {\n var isSubscribed = true;\n if (next === current) next = current.slice();\n next.push(listener);\n return function unsubscribe() {\n if (!isSubscribed || current === CLEARED) return;\n isSubscribed = false;\n if (next === current) next = current.slice();\n next.splice(next.indexOf(listener), 1);\n };\n }\n };\n}\n\nvar Subscription =\n/*#__PURE__*/\nfunction () {\n function Subscription(store, parentSub) {\n this.store = store;\n this.parentSub = parentSub;\n this.unsubscribe = null;\n this.listeners = nullListeners;\n this.handleChangeWrapper = this.handleChangeWrapper.bind(this);\n }\n\n var _proto = Subscription.prototype;\n\n _proto.addNestedSub = function addNestedSub(listener) {\n this.trySubscribe();\n return this.listeners.subscribe(listener);\n };\n\n _proto.notifyNestedSubs = function notifyNestedSubs() {\n this.listeners.notify();\n };\n\n _proto.handleChangeWrapper = function handleChangeWrapper() {\n if (this.onStateChange) {\n this.onStateChange();\n }\n };\n\n _proto.isSubscribed = function isSubscribed() {\n return Boolean(this.unsubscribe);\n };\n\n _proto.trySubscribe = function trySubscribe() {\n if (!this.unsubscribe) {\n this.unsubscribe = this.parentSub ? this.parentSub.addNestedSub(this.handleChangeWrapper) : this.store.subscribe(this.handleChangeWrapper);\n this.listeners = createListenerCollection();\n }\n };\n\n _proto.tryUnsubscribe = function tryUnsubscribe() {\n if (this.unsubscribe) {\n this.unsubscribe();\n this.unsubscribe = null;\n this.listeners.clear();\n this.listeners = nullListeners;\n }\n };\n\n return Subscription;\n}();\n\nexport { Subscription as default };","import React, { useMemo, useEffect } from 'react';\nimport PropTypes from 'prop-types';\nimport { ReactReduxContext } from './Context';\nimport Subscription from '../utils/Subscription';\n\nfunction Provider(_ref) {\n var store = _ref.store,\n context = _ref.context,\n children = _ref.children;\n var contextValue = useMemo(function () {\n var subscription = new Subscription(store);\n subscription.onStateChange = subscription.notifyNestedSubs;\n return {\n store: store,\n subscription: subscription\n };\n }, [store]);\n var previousState = useMemo(function () {\n return store.getState();\n }, [store]);\n useEffect(function () {\n var subscription = contextValue.subscription;\n subscription.trySubscribe();\n\n if (previousState !== store.getState()) {\n subscription.notifyNestedSubs();\n }\n\n return function () {\n subscription.tryUnsubscribe();\n subscription.onStateChange = null;\n };\n }, [contextValue, previousState]);\n var Context = context || ReactReduxContext;\n return React.createElement(Context.Provider, {\n value: contextValue\n }, children);\n}\n\nProvider.propTypes = {\n store: PropTypes.shape({\n subscribe: PropTypes.func.isRequired,\n dispatch: PropTypes.func.isRequired,\n getState: PropTypes.func.isRequired\n }),\n context: PropTypes.object,\n children: PropTypes.any\n};\nexport default Provider;","export default function _extends() {\n _extends = Object.assign || function (target) {\n for (var i = 1; i < arguments.length; i++) {\n var source = arguments[i];\n\n for (var key in source) {\n if (Object.prototype.hasOwnProperty.call(source, key)) {\n target[key] = source[key];\n }\n }\n }\n\n return target;\n };\n\n return _extends.apply(this, arguments);\n}","export default function _objectWithoutPropertiesLoose(source, excluded) {\n if (source == null) return {};\n var target = {};\n var sourceKeys = Object.keys(source);\n var key, i;\n\n for (i = 0; i < sourceKeys.length; i++) {\n key = sourceKeys[i];\n if (excluded.indexOf(key) >= 0) continue;\n target[key] = source[key];\n }\n\n return target;\n}","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _objectWithoutPropertiesLoose from \"@babel/runtime/helpers/esm/objectWithoutPropertiesLoose\";\nimport hoistStatics from 'hoist-non-react-statics';\nimport invariant from 'invariant';\nimport React, { useContext, useMemo, useEffect, useLayoutEffect, useRef, useReducer } from 'react';\nimport { isValidElementType, isContextConsumer } from 'react-is';\nimport Subscription from '../utils/Subscription';\nimport { ReactReduxContext } from './Context'; // Define some constant arrays just to avoid re-creating these\n\nvar EMPTY_ARRAY = [];\nvar NO_SUBSCRIPTION_ARRAY = [null, null];\n\nvar stringifyComponent = function stringifyComponent(Comp) {\n try {\n return JSON.stringify(Comp);\n } catch (err) {\n return String(Comp);\n }\n};\n\nfunction storeStateUpdatesReducer(state, action) {\n var updateCount = state[1];\n return [action.payload, updateCount + 1];\n}\n\nvar initStateUpdates = function initStateUpdates() {\n return [null, 0];\n}; // React currently throws a warning when using useLayoutEffect on the server.\n// To get around it, we can conditionally useEffect on the server (no-op) and\n// useLayoutEffect in the browser. We need useLayoutEffect because we want\n// `connect` to perform sync updates to a ref to save the latest props after\n// a render is actually committed to the DOM.\n\n\nvar useIsomorphicLayoutEffect = typeof window !== 'undefined' && typeof window.document !== 'undefined' && typeof window.document.createElement !== 'undefined' ? useLayoutEffect : useEffect;\nexport default function connectAdvanced(\n/*\n selectorFactory is a func that is responsible for returning the selector function used to\n compute new props from state, props, and dispatch. For example:\n export default connectAdvanced((dispatch, options) => (state, props) => ({\n thing: state.things[props.thingId],\n saveThing: fields => dispatch(actionCreators.saveThing(props.thingId, fields)),\n }))(YourComponent)\n Access to dispatch is provided to the factory so selectorFactories can bind actionCreators\n outside of their selector as an optimization. Options passed to connectAdvanced are passed to\n the selectorFactory, along with displayName and WrappedComponent, as the second argument.\n Note that selectorFactory is responsible for all caching/memoization of inbound and outbound\n props. Do not use connectAdvanced directly without memoizing results between calls to your\n selector, otherwise the Connect component will re-render on every state or props change.\n*/\nselectorFactory, // options object:\n_ref) {\n if (_ref === void 0) {\n _ref = {};\n }\n\n var _ref2 = _ref,\n _ref2$getDisplayName = _ref2.getDisplayName,\n getDisplayName = _ref2$getDisplayName === void 0 ? function (name) {\n return \"ConnectAdvanced(\" + name + \")\";\n } : _ref2$getDisplayName,\n _ref2$methodName = _ref2.methodName,\n methodName = _ref2$methodName === void 0 ? 'connectAdvanced' : _ref2$methodName,\n _ref2$renderCountProp = _ref2.renderCountProp,\n renderCountProp = _ref2$renderCountProp === void 0 ? undefined : _ref2$renderCountProp,\n _ref2$shouldHandleSta = _ref2.shouldHandleStateChanges,\n shouldHandleStateChanges = _ref2$shouldHandleSta === void 0 ? true : _ref2$shouldHandleSta,\n _ref2$storeKey = _ref2.storeKey,\n storeKey = _ref2$storeKey === void 0 ? 'store' : _ref2$storeKey,\n _ref2$withRef = _ref2.withRef,\n withRef = _ref2$withRef === void 0 ? false : _ref2$withRef,\n _ref2$forwardRef = _ref2.forwardRef,\n forwardRef = _ref2$forwardRef === void 0 ? false : _ref2$forwardRef,\n _ref2$context = _ref2.context,\n context = _ref2$context === void 0 ? ReactReduxContext : _ref2$context,\n connectOptions = _objectWithoutPropertiesLoose(_ref2, [\"getDisplayName\", \"methodName\", \"renderCountProp\", \"shouldHandleStateChanges\", \"storeKey\", \"withRef\", \"forwardRef\", \"context\"]);\n\n invariant(renderCountProp === undefined, \"renderCountProp is removed. render counting is built into the latest React Dev Tools profiling extension\");\n invariant(!withRef, 'withRef is removed. To access the wrapped instance, use a ref on the connected component');\n var customStoreWarningMessage = 'To use a custom Redux store for specific components, create a custom React context with ' + \"React.createContext(), and pass the context object to React Redux's Provider and specific components\" + ' like: . ' + 'You may also pass a {context : MyContext} option to connect';\n invariant(storeKey === 'store', 'storeKey has been removed and does not do anything. ' + customStoreWarningMessage);\n var Context = context;\n return function wrapWithConnect(WrappedComponent) {\n if (process.env.NODE_ENV !== 'production') {\n invariant(isValidElementType(WrappedComponent), \"You must pass a component to the function returned by \" + (methodName + \". Instead received \" + stringifyComponent(WrappedComponent)));\n }\n\n var wrappedComponentName = WrappedComponent.displayName || WrappedComponent.name || 'Component';\n var displayName = getDisplayName(wrappedComponentName);\n\n var selectorFactoryOptions = _extends({}, connectOptions, {\n getDisplayName: getDisplayName,\n methodName: methodName,\n renderCountProp: renderCountProp,\n shouldHandleStateChanges: shouldHandleStateChanges,\n storeKey: storeKey,\n displayName: displayName,\n wrappedComponentName: wrappedComponentName,\n WrappedComponent: WrappedComponent\n });\n\n var pure = connectOptions.pure;\n\n function createChildSelector(store) {\n return selectorFactory(store.dispatch, selectorFactoryOptions);\n } // If we aren't running in \"pure\" mode, we don't want to memoize values.\n // To avoid conditionally calling hooks, we fall back to a tiny wrapper\n // that just executes the given callback immediately.\n\n\n var usePureOnlyMemo = pure ? useMemo : function (callback) {\n return callback();\n };\n\n function ConnectFunction(props) {\n var _useMemo = useMemo(function () {\n // Distinguish between actual \"data\" props that were passed to the wrapper component,\n // and values needed to control behavior (forwarded refs, alternate context instances).\n // To maintain the wrapperProps object reference, memoize this destructuring.\n var forwardedRef = props.forwardedRef,\n wrapperProps = _objectWithoutPropertiesLoose(props, [\"forwardedRef\"]);\n\n return [props.context, forwardedRef, wrapperProps];\n }, [props]),\n propsContext = _useMemo[0],\n forwardedRef = _useMemo[1],\n wrapperProps = _useMemo[2];\n\n var ContextToUse = useMemo(function () {\n // Users may optionally pass in a custom context instance to use instead of our ReactReduxContext.\n // Memoize the check that determines which context instance we should use.\n return propsContext && propsContext.Consumer && isContextConsumer(React.createElement(propsContext.Consumer, null)) ? propsContext : Context;\n }, [propsContext, Context]); // Retrieve the store and ancestor subscription via context, if available\n\n var contextValue = useContext(ContextToUse); // The store _must_ exist as either a prop or in context\n\n var didStoreComeFromProps = Boolean(props.store);\n var didStoreComeFromContext = Boolean(contextValue) && Boolean(contextValue.store);\n invariant(didStoreComeFromProps || didStoreComeFromContext, \"Could not find \\\"store\\\" in the context of \" + (\"\\\"\" + displayName + \"\\\". Either wrap the root component in a , \") + \"or pass a custom React context provider to and the corresponding \" + (\"React context consumer to \" + displayName + \" in connect options.\"));\n var store = props.store || contextValue.store;\n var childPropsSelector = useMemo(function () {\n // The child props selector needs the store reference as an input.\n // Re-create this selector whenever the store changes.\n return createChildSelector(store);\n }, [store]);\n\n var _useMemo2 = useMemo(function () {\n if (!shouldHandleStateChanges) return NO_SUBSCRIPTION_ARRAY; // This Subscription's source should match where store came from: props vs. context. A component\n // connected to the store via props shouldn't use subscription from context, or vice versa.\n\n var subscription = new Subscription(store, didStoreComeFromProps ? null : contextValue.subscription); // `notifyNestedSubs` is duplicated to handle the case where the component is unmounted in\n // the middle of the notification loop, where `subscription` will then be null. This can\n // probably be avoided if Subscription's listeners logic is changed to not call listeners\n // that have been unsubscribed in the middle of the notification loop.\n\n var notifyNestedSubs = subscription.notifyNestedSubs.bind(subscription);\n return [subscription, notifyNestedSubs];\n }, [store, didStoreComeFromProps, contextValue]),\n subscription = _useMemo2[0],\n notifyNestedSubs = _useMemo2[1]; // Determine what {store, subscription} value should be put into nested context, if necessary,\n // and memoize that value to avoid unnecessary context updates.\n\n\n var overriddenContextValue = useMemo(function () {\n if (didStoreComeFromProps) {\n // This component is directly subscribed to a store from props.\n // We don't want descendants reading from this store - pass down whatever\n // the existing context value is from the nearest connected ancestor.\n return contextValue;\n } // Otherwise, put this component's subscription instance into context, so that\n // connected descendants won't update until after this component is done\n\n\n return _extends({}, contextValue, {\n subscription: subscription\n });\n }, [didStoreComeFromProps, contextValue, subscription]); // We need to force this wrapper component to re-render whenever a Redux store update\n // causes a change to the calculated child component props (or we caught an error in mapState)\n\n var _useReducer = useReducer(storeStateUpdatesReducer, EMPTY_ARRAY, initStateUpdates),\n _useReducer$ = _useReducer[0],\n previousStateUpdateResult = _useReducer$[0],\n forceComponentUpdateDispatch = _useReducer[1]; // Propagate any mapState/mapDispatch errors upwards\n\n\n if (previousStateUpdateResult && previousStateUpdateResult.error) {\n throw previousStateUpdateResult.error;\n } // Set up refs to coordinate values between the subscription effect and the render logic\n\n\n var lastChildProps = useRef();\n var lastWrapperProps = useRef(wrapperProps);\n var childPropsFromStoreUpdate = useRef();\n var renderIsScheduled = useRef(false);\n var actualChildProps = usePureOnlyMemo(function () {\n // Tricky logic here:\n // - This render may have been triggered by a Redux store update that produced new child props\n // - However, we may have gotten new wrapper props after that\n // If we have new child props, and the same wrapper props, we know we should use the new child props as-is.\n // But, if we have new wrapper props, those might change the child props, so we have to recalculate things.\n // So, we'll use the child props from store update only if the wrapper props are the same as last time.\n if (childPropsFromStoreUpdate.current && wrapperProps === lastWrapperProps.current) {\n return childPropsFromStoreUpdate.current;\n } // TODO We're reading the store directly in render() here. Bad idea?\n // This will likely cause Bad Things (TM) to happen in Concurrent Mode.\n // Note that we do this because on renders _not_ caused by store updates, we need the latest store state\n // to determine what the child props should be.\n\n\n return childPropsSelector(store.getState(), wrapperProps);\n }, [store, previousStateUpdateResult, wrapperProps]); // We need this to execute synchronously every time we re-render. However, React warns\n // about useLayoutEffect in SSR, so we try to detect environment and fall back to\n // just useEffect instead to avoid the warning, since neither will run anyway.\n\n useIsomorphicLayoutEffect(function () {\n // We want to capture the wrapper props and child props we used for later comparisons\n lastWrapperProps.current = wrapperProps;\n lastChildProps.current = actualChildProps;\n renderIsScheduled.current = false; // If the render was from a store update, clear out that reference and cascade the subscriber update\n\n if (childPropsFromStoreUpdate.current) {\n childPropsFromStoreUpdate.current = null;\n notifyNestedSubs();\n }\n }); // Our re-subscribe logic only runs when the store/subscription setup changes\n\n useIsomorphicLayoutEffect(function () {\n // If we're not subscribed to the store, nothing to do here\n if (!shouldHandleStateChanges) return; // Capture values for checking if and when this component unmounts\n\n var didUnsubscribe = false;\n var lastThrownError = null; // We'll run this callback every time a store subscription update propagates to this component\n\n var checkForUpdates = function checkForUpdates() {\n if (didUnsubscribe) {\n // Don't run stale listeners.\n // Redux doesn't guarantee unsubscriptions happen until next dispatch.\n return;\n }\n\n var latestStoreState = store.getState();\n var newChildProps, error;\n\n try {\n // Actually run the selector with the most recent store state and wrapper props\n // to determine what the child props should be\n newChildProps = childPropsSelector(latestStoreState, lastWrapperProps.current);\n } catch (e) {\n error = e;\n lastThrownError = e;\n }\n\n if (!error) {\n lastThrownError = null;\n } // If the child props haven't changed, nothing to do here - cascade the subscription update\n\n\n if (newChildProps === lastChildProps.current) {\n if (!renderIsScheduled.current) {\n notifyNestedSubs();\n }\n } else {\n // Save references to the new child props. Note that we track the \"child props from store update\"\n // as a ref instead of a useState/useReducer because we need a way to determine if that value has\n // been processed. If this went into useState/useReducer, we couldn't clear out the value without\n // forcing another re-render, which we don't want.\n lastChildProps.current = newChildProps;\n childPropsFromStoreUpdate.current = newChildProps;\n renderIsScheduled.current = true; // If the child props _did_ change (or we caught an error), this wrapper component needs to re-render\n\n forceComponentUpdateDispatch({\n type: 'STORE_UPDATED',\n payload: {\n latestStoreState: latestStoreState,\n error: error\n }\n });\n }\n }; // Actually subscribe to the nearest connected ancestor (or store)\n\n\n subscription.onStateChange = checkForUpdates;\n subscription.trySubscribe(); // Pull data from the store after first render in case the store has\n // changed since we began.\n\n checkForUpdates();\n\n var unsubscribeWrapper = function unsubscribeWrapper() {\n didUnsubscribe = true;\n subscription.tryUnsubscribe();\n subscription.onStateChange = null;\n\n if (lastThrownError) {\n // It's possible that we caught an error due to a bad mapState function, but the\n // parent re-rendered without this component and we're about to unmount.\n // This shouldn't happen as long as we do top-down subscriptions correctly, but\n // if we ever do those wrong, this throw will surface the error in our tests.\n // In that case, throw the error from here so it doesn't get lost.\n throw lastThrownError;\n }\n };\n\n return unsubscribeWrapper;\n }, [store, subscription, childPropsSelector]); // Now that all that's done, we can finally try to actually render the child component.\n // We memoize the elements for the rendered child component as an optimization.\n\n var renderedWrappedComponent = useMemo(function () {\n return React.createElement(WrappedComponent, _extends({}, actualChildProps, {\n ref: forwardedRef\n }));\n }, [forwardedRef, WrappedComponent, actualChildProps]); // If React sees the exact same element reference as last time, it bails out of re-rendering\n // that child, same as if it was wrapped in React.memo() or returned false from shouldComponentUpdate.\n\n var renderedChild = useMemo(function () {\n if (shouldHandleStateChanges) {\n // If this component is subscribed to store updates, we need to pass its own\n // subscription instance down to our descendants. That means rendering the same\n // Context instance, and putting a different value into the context.\n return React.createElement(ContextToUse.Provider, {\n value: overriddenContextValue\n }, renderedWrappedComponent);\n }\n\n return renderedWrappedComponent;\n }, [ContextToUse, renderedWrappedComponent, overriddenContextValue]);\n return renderedChild;\n } // If we're in \"pure\" mode, ensure our wrapper component only re-renders when incoming props have changed.\n\n\n var Connect = pure ? React.memo(ConnectFunction) : ConnectFunction;\n Connect.WrappedComponent = WrappedComponent;\n Connect.displayName = displayName;\n\n if (forwardRef) {\n var forwarded = React.forwardRef(function forwardConnectRef(props, ref) {\n return React.createElement(Connect, _extends({}, props, {\n forwardedRef: ref\n }));\n });\n forwarded.displayName = displayName;\n forwarded.WrappedComponent = WrappedComponent;\n return hoistStatics(forwarded, WrappedComponent);\n }\n\n return hoistStatics(Connect, WrappedComponent);\n };\n}","var hasOwn = Object.prototype.hasOwnProperty;\n\nfunction is(x, y) {\n if (x === y) {\n return x !== 0 || y !== 0 || 1 / x === 1 / y;\n } else {\n return x !== x && y !== y;\n }\n}\n\nexport default function shallowEqual(objA, objB) {\n if (is(objA, objB)) return true;\n\n if (typeof objA !== 'object' || objA === null || typeof objB !== 'object' || objB === null) {\n return false;\n }\n\n var keysA = Object.keys(objA);\n var keysB = Object.keys(objB);\n if (keysA.length !== keysB.length) return false;\n\n for (var i = 0; i < keysA.length; i++) {\n if (!hasOwn.call(objB, keysA[i]) || !is(objA[keysA[i]], objB[keysA[i]])) {\n return false;\n }\n }\n\n return true;\n}","import verifyPlainObject from '../utils/verifyPlainObject';\nexport function wrapMapToPropsConstant(getConstant) {\n return function initConstantSelector(dispatch, options) {\n var constant = getConstant(dispatch, options);\n\n function constantSelector() {\n return constant;\n }\n\n constantSelector.dependsOnOwnProps = false;\n return constantSelector;\n };\n} // dependsOnOwnProps is used by createMapToPropsProxy to determine whether to pass props as args\n// to the mapToProps function being wrapped. It is also used by makePurePropsSelector to determine\n// whether mapToProps needs to be invoked when props have changed.\n//\n// A length of one signals that mapToProps does not depend on props from the parent component.\n// A length of zero is assumed to mean mapToProps is getting args via arguments or ...args and\n// therefore not reporting its length accurately..\n\nexport function getDependsOnOwnProps(mapToProps) {\n return mapToProps.dependsOnOwnProps !== null && mapToProps.dependsOnOwnProps !== undefined ? Boolean(mapToProps.dependsOnOwnProps) : mapToProps.length !== 1;\n} // Used by whenMapStateToPropsIsFunction and whenMapDispatchToPropsIsFunction,\n// this function wraps mapToProps in a proxy function which does several things:\n//\n// * Detects whether the mapToProps function being called depends on props, which\n// is used by selectorFactory to decide if it should reinvoke on props changes.\n//\n// * On first call, handles mapToProps if returns another function, and treats that\n// new function as the true mapToProps for subsequent calls.\n//\n// * On first call, verifies the first result is a plain object, in order to warn\n// the developer that their mapToProps function is not returning a valid result.\n//\n\nexport function wrapMapToPropsFunc(mapToProps, methodName) {\n return function initProxySelector(dispatch, _ref) {\n var displayName = _ref.displayName;\n\n var proxy = function mapToPropsProxy(stateOrDispatch, ownProps) {\n return proxy.dependsOnOwnProps ? proxy.mapToProps(stateOrDispatch, ownProps) : proxy.mapToProps(stateOrDispatch);\n }; // allow detectFactoryAndVerify to get ownProps\n\n\n proxy.dependsOnOwnProps = true;\n\n proxy.mapToProps = function detectFactoryAndVerify(stateOrDispatch, ownProps) {\n proxy.mapToProps = mapToProps;\n proxy.dependsOnOwnProps = getDependsOnOwnProps(mapToProps);\n var props = proxy(stateOrDispatch, ownProps);\n\n if (typeof props === 'function') {\n proxy.mapToProps = props;\n proxy.dependsOnOwnProps = getDependsOnOwnProps(props);\n props = proxy(stateOrDispatch, ownProps);\n }\n\n if (process.env.NODE_ENV !== 'production') verifyPlainObject(props, displayName, methodName);\n return props;\n };\n\n return proxy;\n };\n}","import { bindActionCreators } from 'redux';\nimport { wrapMapToPropsConstant, wrapMapToPropsFunc } from './wrapMapToProps';\nexport function whenMapDispatchToPropsIsFunction(mapDispatchToProps) {\n return typeof mapDispatchToProps === 'function' ? wrapMapToPropsFunc(mapDispatchToProps, 'mapDispatchToProps') : undefined;\n}\nexport function whenMapDispatchToPropsIsMissing(mapDispatchToProps) {\n return !mapDispatchToProps ? wrapMapToPropsConstant(function (dispatch) {\n return {\n dispatch: dispatch\n };\n }) : undefined;\n}\nexport function whenMapDispatchToPropsIsObject(mapDispatchToProps) {\n return mapDispatchToProps && typeof mapDispatchToProps === 'object' ? wrapMapToPropsConstant(function (dispatch) {\n return bindActionCreators(mapDispatchToProps, dispatch);\n }) : undefined;\n}\nexport default [whenMapDispatchToPropsIsFunction, whenMapDispatchToPropsIsMissing, whenMapDispatchToPropsIsObject];","import { wrapMapToPropsConstant, wrapMapToPropsFunc } from './wrapMapToProps';\nexport function whenMapStateToPropsIsFunction(mapStateToProps) {\n return typeof mapStateToProps === 'function' ? wrapMapToPropsFunc(mapStateToProps, 'mapStateToProps') : undefined;\n}\nexport function whenMapStateToPropsIsMissing(mapStateToProps) {\n return !mapStateToProps ? wrapMapToPropsConstant(function () {\n return {};\n }) : undefined;\n}\nexport default [whenMapStateToPropsIsFunction, whenMapStateToPropsIsMissing];","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport verifyPlainObject from '../utils/verifyPlainObject';\nexport function defaultMergeProps(stateProps, dispatchProps, ownProps) {\n return _extends({}, ownProps, {}, stateProps, {}, dispatchProps);\n}\nexport function wrapMergePropsFunc(mergeProps) {\n return function initMergePropsProxy(dispatch, _ref) {\n var displayName = _ref.displayName,\n pure = _ref.pure,\n areMergedPropsEqual = _ref.areMergedPropsEqual;\n var hasRunOnce = false;\n var mergedProps;\n return function mergePropsProxy(stateProps, dispatchProps, ownProps) {\n var nextMergedProps = mergeProps(stateProps, dispatchProps, ownProps);\n\n if (hasRunOnce) {\n if (!pure || !areMergedPropsEqual(nextMergedProps, mergedProps)) mergedProps = nextMergedProps;\n } else {\n hasRunOnce = true;\n mergedProps = nextMergedProps;\n if (process.env.NODE_ENV !== 'production') verifyPlainObject(mergedProps, displayName, 'mergeProps');\n }\n\n return mergedProps;\n };\n };\n}\nexport function whenMergePropsIsFunction(mergeProps) {\n return typeof mergeProps === 'function' ? wrapMergePropsFunc(mergeProps) : undefined;\n}\nexport function whenMergePropsIsOmitted(mergeProps) {\n return !mergeProps ? function () {\n return defaultMergeProps;\n } : undefined;\n}\nexport default [whenMergePropsIsFunction, whenMergePropsIsOmitted];","import _objectWithoutPropertiesLoose from \"@babel/runtime/helpers/esm/objectWithoutPropertiesLoose\";\nimport verifySubselectors from './verifySubselectors';\nexport function impureFinalPropsSelectorFactory(mapStateToProps, mapDispatchToProps, mergeProps, dispatch) {\n return function impureFinalPropsSelector(state, ownProps) {\n return mergeProps(mapStateToProps(state, ownProps), mapDispatchToProps(dispatch, ownProps), ownProps);\n };\n}\nexport function pureFinalPropsSelectorFactory(mapStateToProps, mapDispatchToProps, mergeProps, dispatch, _ref) {\n var areStatesEqual = _ref.areStatesEqual,\n areOwnPropsEqual = _ref.areOwnPropsEqual,\n areStatePropsEqual = _ref.areStatePropsEqual;\n var hasRunAtLeastOnce = false;\n var state;\n var ownProps;\n var stateProps;\n var dispatchProps;\n var mergedProps;\n\n function handleFirstCall(firstState, firstOwnProps) {\n state = firstState;\n ownProps = firstOwnProps;\n stateProps = mapStateToProps(state, ownProps);\n dispatchProps = mapDispatchToProps(dispatch, ownProps);\n mergedProps = mergeProps(stateProps, dispatchProps, ownProps);\n hasRunAtLeastOnce = true;\n return mergedProps;\n }\n\n function handleNewPropsAndNewState() {\n stateProps = mapStateToProps(state, ownProps);\n if (mapDispatchToProps.dependsOnOwnProps) dispatchProps = mapDispatchToProps(dispatch, ownProps);\n mergedProps = mergeProps(stateProps, dispatchProps, ownProps);\n return mergedProps;\n }\n\n function handleNewProps() {\n if (mapStateToProps.dependsOnOwnProps) stateProps = mapStateToProps(state, ownProps);\n if (mapDispatchToProps.dependsOnOwnProps) dispatchProps = mapDispatchToProps(dispatch, ownProps);\n mergedProps = mergeProps(stateProps, dispatchProps, ownProps);\n return mergedProps;\n }\n\n function handleNewState() {\n var nextStateProps = mapStateToProps(state, ownProps);\n var statePropsChanged = !areStatePropsEqual(nextStateProps, stateProps);\n stateProps = nextStateProps;\n if (statePropsChanged) mergedProps = mergeProps(stateProps, dispatchProps, ownProps);\n return mergedProps;\n }\n\n function handleSubsequentCalls(nextState, nextOwnProps) {\n var propsChanged = !areOwnPropsEqual(nextOwnProps, ownProps);\n var stateChanged = !areStatesEqual(nextState, state);\n state = nextState;\n ownProps = nextOwnProps;\n if (propsChanged && stateChanged) return handleNewPropsAndNewState();\n if (propsChanged) return handleNewProps();\n if (stateChanged) return handleNewState();\n return mergedProps;\n }\n\n return function pureFinalPropsSelector(nextState, nextOwnProps) {\n return hasRunAtLeastOnce ? handleSubsequentCalls(nextState, nextOwnProps) : handleFirstCall(nextState, nextOwnProps);\n };\n} // TODO: Add more comments\n// If pure is true, the selector returned by selectorFactory will memoize its results,\n// allowing connectAdvanced's shouldComponentUpdate to return false if final\n// props have not changed. If false, the selector will always return a new\n// object and shouldComponentUpdate will always return true.\n\nexport default function finalPropsSelectorFactory(dispatch, _ref2) {\n var initMapStateToProps = _ref2.initMapStateToProps,\n initMapDispatchToProps = _ref2.initMapDispatchToProps,\n initMergeProps = _ref2.initMergeProps,\n options = _objectWithoutPropertiesLoose(_ref2, [\"initMapStateToProps\", \"initMapDispatchToProps\", \"initMergeProps\"]);\n\n var mapStateToProps = initMapStateToProps(dispatch, options);\n var mapDispatchToProps = initMapDispatchToProps(dispatch, options);\n var mergeProps = initMergeProps(dispatch, options);\n\n if (process.env.NODE_ENV !== 'production') {\n verifySubselectors(mapStateToProps, mapDispatchToProps, mergeProps, options.displayName);\n }\n\n var selectorFactory = options.pure ? pureFinalPropsSelectorFactory : impureFinalPropsSelectorFactory;\n return selectorFactory(mapStateToProps, mapDispatchToProps, mergeProps, dispatch, options);\n}","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _objectWithoutPropertiesLoose from \"@babel/runtime/helpers/esm/objectWithoutPropertiesLoose\";\nimport connectAdvanced from '../components/connectAdvanced';\nimport shallowEqual from '../utils/shallowEqual';\nimport defaultMapDispatchToPropsFactories from './mapDispatchToProps';\nimport defaultMapStateToPropsFactories from './mapStateToProps';\nimport defaultMergePropsFactories from './mergeProps';\nimport defaultSelectorFactory from './selectorFactory';\n/*\n connect is a facade over connectAdvanced. It turns its args into a compatible\n selectorFactory, which has the signature:\n\n (dispatch, options) => (nextState, nextOwnProps) => nextFinalProps\n \n connect passes its args to connectAdvanced as options, which will in turn pass them to\n selectorFactory each time a Connect component instance is instantiated or hot reloaded.\n\n selectorFactory returns a final props selector from its mapStateToProps,\n mapStateToPropsFactories, mapDispatchToProps, mapDispatchToPropsFactories, mergeProps,\n mergePropsFactories, and pure args.\n\n The resulting final props selector is called by the Connect component instance whenever\n it receives new props or store state.\n */\n\nfunction match(arg, factories, name) {\n for (var i = factories.length - 1; i >= 0; i--) {\n var result = factories[i](arg);\n if (result) return result;\n }\n\n return function (dispatch, options) {\n throw new Error(\"Invalid value of type \" + typeof arg + \" for \" + name + \" argument when connecting component \" + options.wrappedComponentName + \".\");\n };\n}\n\nfunction strictEqual(a, b) {\n return a === b;\n} // createConnect with default args builds the 'official' connect behavior. Calling it with\n// different options opens up some testing and extensibility scenarios\n\n\nexport function createConnect(_temp) {\n var _ref = _temp === void 0 ? {} : _temp,\n _ref$connectHOC = _ref.connectHOC,\n connectHOC = _ref$connectHOC === void 0 ? connectAdvanced : _ref$connectHOC,\n _ref$mapStateToPropsF = _ref.mapStateToPropsFactories,\n mapStateToPropsFactories = _ref$mapStateToPropsF === void 0 ? defaultMapStateToPropsFactories : _ref$mapStateToPropsF,\n _ref$mapDispatchToPro = _ref.mapDispatchToPropsFactories,\n mapDispatchToPropsFactories = _ref$mapDispatchToPro === void 0 ? defaultMapDispatchToPropsFactories : _ref$mapDispatchToPro,\n _ref$mergePropsFactor = _ref.mergePropsFactories,\n mergePropsFactories = _ref$mergePropsFactor === void 0 ? defaultMergePropsFactories : _ref$mergePropsFactor,\n _ref$selectorFactory = _ref.selectorFactory,\n selectorFactory = _ref$selectorFactory === void 0 ? defaultSelectorFactory : _ref$selectorFactory;\n\n return function connect(mapStateToProps, mapDispatchToProps, mergeProps, _ref2) {\n if (_ref2 === void 0) {\n _ref2 = {};\n }\n\n var _ref3 = _ref2,\n _ref3$pure = _ref3.pure,\n pure = _ref3$pure === void 0 ? true : _ref3$pure,\n _ref3$areStatesEqual = _ref3.areStatesEqual,\n areStatesEqual = _ref3$areStatesEqual === void 0 ? strictEqual : _ref3$areStatesEqual,\n _ref3$areOwnPropsEqua = _ref3.areOwnPropsEqual,\n areOwnPropsEqual = _ref3$areOwnPropsEqua === void 0 ? shallowEqual : _ref3$areOwnPropsEqua,\n _ref3$areStatePropsEq = _ref3.areStatePropsEqual,\n areStatePropsEqual = _ref3$areStatePropsEq === void 0 ? shallowEqual : _ref3$areStatePropsEq,\n _ref3$areMergedPropsE = _ref3.areMergedPropsEqual,\n areMergedPropsEqual = _ref3$areMergedPropsE === void 0 ? shallowEqual : _ref3$areMergedPropsE,\n extraOptions = _objectWithoutPropertiesLoose(_ref3, [\"pure\", \"areStatesEqual\", \"areOwnPropsEqual\", \"areStatePropsEqual\", \"areMergedPropsEqual\"]);\n\n var initMapStateToProps = match(mapStateToProps, mapStateToPropsFactories, 'mapStateToProps');\n var initMapDispatchToProps = match(mapDispatchToProps, mapDispatchToPropsFactories, 'mapDispatchToProps');\n var initMergeProps = match(mergeProps, mergePropsFactories, 'mergeProps');\n return connectHOC(selectorFactory, _extends({\n // used in error messages\n methodName: 'connect',\n // used to compute Connect's displayName from the wrapped component's displayName.\n getDisplayName: function getDisplayName(name) {\n return \"Connect(\" + name + \")\";\n },\n // if mapStateToProps is falsy, the Connect component doesn't subscribe to store state changes\n shouldHandleStateChanges: Boolean(mapStateToProps),\n // passed through to selectorFactory\n initMapStateToProps: initMapStateToProps,\n initMapDispatchToProps: initMapDispatchToProps,\n initMergeProps: initMergeProps,\n pure: pure,\n areStatesEqual: areStatesEqual,\n areOwnPropsEqual: areOwnPropsEqual,\n areStatePropsEqual: areStatePropsEqual,\n areMergedPropsEqual: areMergedPropsEqual\n }, extraOptions));\n };\n}\nexport default createConnect();","import { useContext } from 'react';\nimport invariant from 'invariant';\nimport { ReactReduxContext } from '../components/Context';\n/**\n * A hook to access the value of the `ReactReduxContext`. This is a low-level\n * hook that you should usually not need to call directly.\n *\n * @returns {any} the value of the `ReactReduxContext`\n *\n * @example\n *\n * import React from 'react'\n * import { useReduxContext } from 'react-redux'\n *\n * export const CounterComponent = ({ value }) => {\n * const { store } = useReduxContext()\n * return {store.getState()}
\n * }\n */\n\nexport function useReduxContext() {\n var contextValue = useContext(ReactReduxContext);\n invariant(contextValue, 'could not find react-redux context value; please ensure the component is wrapped in a ');\n return contextValue;\n}","import { useContext } from 'react';\nimport { ReactReduxContext } from '../components/Context';\nimport { useReduxContext as useDefaultReduxContext } from './useReduxContext';\n/**\n * Hook factory, which creates a `useStore` hook bound to a given context.\n *\n * @param {Function} [context=ReactReduxContext] Context passed to your ``.\n * @returns {Function} A `useStore` hook bound to the specified context.\n */\n\nexport function createStoreHook(context) {\n if (context === void 0) {\n context = ReactReduxContext;\n }\n\n var useReduxContext = context === ReactReduxContext ? useDefaultReduxContext : function () {\n return useContext(context);\n };\n return function useStore() {\n var _useReduxContext = useReduxContext(),\n store = _useReduxContext.store;\n\n return store;\n };\n}\n/**\n * A hook to access the redux store.\n *\n * @returns {any} the redux store\n *\n * @example\n *\n * import React from 'react'\n * import { useStore } from 'react-redux'\n *\n * export const ExampleComponent = () => {\n * const store = useStore()\n * return {store.getState()}
\n * }\n */\n\nexport var useStore = createStoreHook();","import { ReactReduxContext } from '../components/Context';\nimport { useStore as useDefaultStore, createStoreHook } from './useStore';\n/**\n * Hook factory, which creates a `useDispatch` hook bound to a given context.\n *\n * @param {Function} [context=ReactReduxContext] Context passed to your ``.\n * @returns {Function} A `useDispatch` hook bound to the specified context.\n */\n\nexport function createDispatchHook(context) {\n if (context === void 0) {\n context = ReactReduxContext;\n }\n\n var useStore = context === ReactReduxContext ? useDefaultStore : createStoreHook(context);\n return function useDispatch() {\n var store = useStore();\n return store.dispatch;\n };\n}\n/**\n * A hook to access the redux `dispatch` function.\n *\n * @returns {any|function} redux store's `dispatch` function\n *\n * @example\n *\n * import React, { useCallback } from 'react'\n * import { useDispatch } from 'react-redux'\n *\n * export const CounterComponent = ({ value }) => {\n * const dispatch = useDispatch()\n * const increaseCounter = useCallback(() => dispatch({ type: 'increase-counter' }), [])\n * return (\n * \n * {value}\n * \n *
\n * )\n * }\n */\n\nexport var useDispatch = createDispatchHook();","import { useReducer, useRef, useEffect, useMemo, useLayoutEffect, useContext } from 'react';\nimport invariant from 'invariant';\nimport { useReduxContext as useDefaultReduxContext } from './useReduxContext';\nimport Subscription from '../utils/Subscription';\nimport { ReactReduxContext } from '../components/Context'; // React currently throws a warning when using useLayoutEffect on the server.\n// To get around it, we can conditionally useEffect on the server (no-op) and\n// useLayoutEffect in the browser. We need useLayoutEffect to ensure the store\n// subscription callback always has the selector from the latest render commit\n// available, otherwise a store update may happen between render and the effect,\n// which may cause missed updates; we also must ensure the store subscription\n// is created synchronously, otherwise a store update may occur before the\n// subscription is created and an inconsistent state may be observed\n\nvar useIsomorphicLayoutEffect = typeof window !== 'undefined' ? useLayoutEffect : useEffect;\n\nvar refEquality = function refEquality(a, b) {\n return a === b;\n};\n\nfunction useSelectorWithStoreAndSubscription(selector, equalityFn, store, contextSub) {\n var _useReducer = useReducer(function (s) {\n return s + 1;\n }, 0),\n forceRender = _useReducer[1];\n\n var subscription = useMemo(function () {\n return new Subscription(store, contextSub);\n }, [store, contextSub]);\n var latestSubscriptionCallbackError = useRef();\n var latestSelector = useRef();\n var latestSelectedState = useRef();\n var selectedState;\n\n try {\n if (selector !== latestSelector.current || latestSubscriptionCallbackError.current) {\n selectedState = selector(store.getState());\n } else {\n selectedState = latestSelectedState.current;\n }\n } catch (err) {\n var errorMessage = \"An error occured while selecting the store state: \" + err.message + \".\";\n\n if (latestSubscriptionCallbackError.current) {\n errorMessage += \"\\nThe error may be correlated with this previous error:\\n\" + latestSubscriptionCallbackError.current.stack + \"\\n\\nOriginal stack trace:\";\n }\n\n throw new Error(errorMessage);\n }\n\n useIsomorphicLayoutEffect(function () {\n latestSelector.current = selector;\n latestSelectedState.current = selectedState;\n latestSubscriptionCallbackError.current = undefined;\n });\n useIsomorphicLayoutEffect(function () {\n function checkForUpdates() {\n try {\n var newSelectedState = latestSelector.current(store.getState());\n\n if (equalityFn(newSelectedState, latestSelectedState.current)) {\n return;\n }\n\n latestSelectedState.current = newSelectedState;\n } catch (err) {\n // we ignore all errors here, since when the component\n // is re-rendered, the selectors are called again, and\n // will throw again, if neither props nor store state\n // changed\n latestSubscriptionCallbackError.current = err;\n }\n\n forceRender({});\n }\n\n subscription.onStateChange = checkForUpdates;\n subscription.trySubscribe();\n checkForUpdates();\n return function () {\n return subscription.tryUnsubscribe();\n };\n }, [store, subscription]);\n return selectedState;\n}\n/**\n * Hook factory, which creates a `useSelector` hook bound to a given context.\n *\n * @param {Function} [context=ReactReduxContext] Context passed to your ``.\n * @returns {Function} A `useSelector` hook bound to the specified context.\n */\n\n\nexport function createSelectorHook(context) {\n if (context === void 0) {\n context = ReactReduxContext;\n }\n\n var useReduxContext = context === ReactReduxContext ? useDefaultReduxContext : function () {\n return useContext(context);\n };\n return function useSelector(selector, equalityFn) {\n if (equalityFn === void 0) {\n equalityFn = refEquality;\n }\n\n invariant(selector, \"You must pass a selector to useSelectors\");\n\n var _useReduxContext = useReduxContext(),\n store = _useReduxContext.store,\n contextSub = _useReduxContext.subscription;\n\n return useSelectorWithStoreAndSubscription(selector, equalityFn, store, contextSub);\n };\n}\n/**\n * A hook to access the redux store's state. This hook takes a selector function\n * as an argument. The selector is called with the store state.\n *\n * This hook takes an optional equality comparison function as the second parameter\n * that allows you to customize the way the selected state is compared to determine\n * whether the component needs to be re-rendered.\n *\n * @param {Function} selector the selector function\n * @param {Function=} equalityFn the function that will be used to determine equality\n *\n * @returns {any} the selected state\n *\n * @example\n *\n * import React from 'react'\n * import { useSelector } from 'react-redux'\n *\n * export const CounterComponent = () => {\n * const counter = useSelector(state => state.counter)\n * return {counter}
\n * }\n */\n\nexport var useSelector = createSelectorHook();","import Provider from './components/Provider';\nimport connectAdvanced from './components/connectAdvanced';\nimport { ReactReduxContext } from './components/Context';\nimport connect from './connect/connect';\nimport { useDispatch, createDispatchHook } from './hooks/useDispatch';\nimport { useSelector, createSelectorHook } from './hooks/useSelector';\nimport { useStore, createStoreHook } from './hooks/useStore';\nimport { setBatch } from './utils/batch';\nimport { unstable_batchedUpdates as batch } from './utils/reactBatchedUpdates';\nimport shallowEqual from './utils/shallowEqual';\nsetBatch(batch);\nexport { Provider, connectAdvanced, ReactReduxContext, connect, batch, useDispatch, createDispatchHook, useSelector, createSelectorHook, useStore, createStoreHook, shallowEqual };","/**\n * Copyright (c) 2015-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @providesModule EmitterSubscription\n * \n */\n'use strict';\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\nimport EventSubscription from './EventSubscription';\n\n/**\n * EmitterSubscription represents a subscription with listener and context data.\n */\nvar EmitterSubscription =\n/*#__PURE__*/\nfunction (_EventSubscription) {\n _inheritsLoose(EmitterSubscription, _EventSubscription);\n\n /**\n * @param {EventEmitter} emitter - The event emitter that registered this\n * subscription\n * @param {EventSubscriptionVendor} subscriber - The subscriber that controls\n * this subscription\n * @param {function} listener - Function to invoke when the specified event is\n * emitted\n * @param {*} context - Optional context object to use when invoking the\n * listener\n */\n function EmitterSubscription(emitter, subscriber, listener, context) {\n var _this;\n\n _this = _EventSubscription.call(this, subscriber) || this;\n _this.emitter = emitter;\n _this.listener = listener;\n _this.context = context;\n return _this;\n }\n /**\n * Removes this subscription from the emitter that registered it.\n * Note: we're overriding the `remove()` method of EventSubscription here\n * but deliberately not calling `super.remove()` as the responsibility\n * for removing the subscription lies with the EventEmitter.\n */\n\n\n var _proto = EmitterSubscription.prototype;\n\n _proto.remove = function remove() {\n this.emitter.removeSubscription(this);\n };\n\n return EmitterSubscription;\n}(EventSubscription);\n\nexport default EmitterSubscription;","/**\n * Copyright (c) 2015-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @providesModule EventSubscription\n * \n */\n'use strict';\n\n/**\n * EventSubscription represents a subscription to a particular event. It can\n * remove its own subscription.\n */\nvar EventSubscription =\n/*#__PURE__*/\nfunction () {\n /**\n * @param {EventSubscriptionVendor} subscriber the subscriber that controls\n * this subscription.\n */\n function EventSubscription(subscriber) {\n this.subscriber = subscriber;\n }\n /**\n * Removes this subscription from the subscriber that controls it.\n */\n\n\n var _proto = EventSubscription.prototype;\n\n _proto.remove = function remove() {\n this.subscriber.removeSubscription(this);\n };\n\n return EventSubscription;\n}();\n\nexport default EventSubscription;","/**\n * Copyright (c) 2015-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @providesModule EventEmitter\n * \n * @typecheck\n */\n'use strict';\n\nimport EmitterSubscription from './EmitterSubscription';\nimport EventSubscriptionVendor from './EventSubscriptionVendor';\nimport emptyFunction from 'fbjs/lib/emptyFunction';\nimport invariant from 'fbjs/lib/invariant';\n/**\n * @class EventEmitter\n * @description\n * An EventEmitter is responsible for managing a set of listeners and publishing\n * events to them when it is told that such events happened. In addition to the\n * data for the given event it also sends a event control object which allows\n * the listeners/handlers to prevent the default behavior of the given event.\n *\n * The emitter is designed to be generic enough to support all the different\n * contexts in which one might want to emit events. It is a simple multicast\n * mechanism on top of which extra functionality can be composed. For example, a\n * more advanced emitter may use an EventHolder and EventFactory.\n */\n\nvar EventEmitter =\n/*#__PURE__*/\nfunction () {\n /**\n * @constructor\n *\n * @param {EventSubscriptionVendor} subscriber - Optional subscriber instance\n * to use. If omitted, a new subscriber will be created for the emitter.\n */\n function EventEmitter(subscriber) {\n this._subscriber = subscriber || new EventSubscriptionVendor();\n }\n /**\n * Adds a listener to be invoked when events of the specified type are\n * emitted. An optional calling context may be provided. The data arguments\n * emitted will be passed to the listener function.\n *\n * TODO: Annotate the listener arg's type. This is tricky because listeners\n * can be invoked with varargs.\n *\n * @param {string} eventType - Name of the event to listen to\n * @param {function} listener - Function to invoke when the specified event is\n * emitted\n * @param {*} context - Optional context object to use when invoking the\n * listener\n */\n\n\n var _proto = EventEmitter.prototype;\n\n _proto.addListener = function addListener(eventType, listener, context) {\n return this._subscriber.addSubscription(eventType, new EmitterSubscription(this, this._subscriber, listener, context));\n }\n /**\n * Similar to addListener, except that the listener is removed after it is\n * invoked once.\n *\n * @param {string} eventType - Name of the event to listen to\n * @param {function} listener - Function to invoke only once when the\n * specified event is emitted\n * @param {*} context - Optional context object to use when invoking the\n * listener\n */\n ;\n\n _proto.once = function once(eventType, listener, context) {\n var _this = this;\n\n return this.addListener(eventType, function () {\n _this.removeCurrentListener();\n\n for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n args[_key] = arguments[_key];\n }\n\n listener.apply(context, args);\n });\n }\n /**\n * Removes all of the registered listeners, including those registered as\n * listener maps.\n *\n * @param {?string} eventType - Optional name of the event whose registered\n * listeners to remove\n */\n ;\n\n _proto.removeAllListeners = function removeAllListeners(eventType) {\n this._subscriber.removeAllSubscriptions(eventType);\n }\n /**\n * Provides an API that can be called during an eventing cycle to remove the\n * last listener that was invoked. This allows a developer to provide an event\n * object that can remove the listener (or listener map) during the\n * invocation.\n *\n * If it is called when not inside of an emitting cycle it will throw.\n *\n * @throws {Error} When called not during an eventing cycle\n *\n * @example\n * var subscription = emitter.addListenerMap({\n * someEvent: function(data, event) {\n * console.log(data);\n * emitter.removeCurrentListener();\n * }\n * });\n *\n * emitter.emit('someEvent', 'abc'); // logs 'abc'\n * emitter.emit('someEvent', 'def'); // does not log anything\n */\n ;\n\n _proto.removeCurrentListener = function removeCurrentListener() {\n invariant(!!this._currentSubscription, 'Not in an emitting cycle; there is no current subscription');\n this.removeSubscription(this._currentSubscription);\n }\n /**\n * Removes a specific subscription. Called by the `remove()` method of the\n * subscription itself to ensure any necessary cleanup is performed.\n */\n ;\n\n _proto.removeSubscription = function removeSubscription(subscription) {\n invariant(subscription.emitter === this, 'Subscription does not belong to this emitter.');\n\n this._subscriber.removeSubscription(subscription);\n }\n /**\n * Returns an array of listeners that are currently registered for the given\n * event.\n *\n * @param {string} eventType - Name of the event to query\n * @returns {array}\n */\n ;\n\n _proto.listeners = function listeners(eventType) {\n var subscriptions = this._subscriber.getSubscriptionsForType(eventType);\n\n return subscriptions ? subscriptions.filter(emptyFunction.thatReturnsTrue).map(function (subscription) {\n return subscription.listener;\n }) : [];\n }\n /**\n * Emits an event of the given type with the given data. All handlers of that\n * particular type will be notified.\n *\n * @param {string} eventType - Name of the event to emit\n * @param {...*} Arbitrary arguments to be passed to each registered listener\n *\n * @example\n * emitter.addListener('someEvent', function(message) {\n * console.log(message);\n * });\n *\n * emitter.emit('someEvent', 'abc'); // logs 'abc'\n */\n ;\n\n _proto.emit = function emit(eventType) {\n var subscriptions = this._subscriber.getSubscriptionsForType(eventType);\n\n if (subscriptions) {\n for (var i = 0, l = subscriptions.length; i < l; i++) {\n var subscription = subscriptions[i]; // The subscription may have been removed during this event loop.\n\n if (subscription) {\n this._currentSubscription = subscription;\n subscription.listener.apply(subscription.context, Array.prototype.slice.call(arguments, 1));\n }\n }\n\n this._currentSubscription = null;\n }\n }\n /**\n * Removes the given listener for event of specific type.\n *\n * @param {string} eventType - Name of the event to emit\n * @param {function} listener - Function to invoke when the specified event is\n * emitted\n *\n * @example\n * emitter.removeListener('someEvent', function(message) {\n * console.log(message);\n * }); // removes the listener if already registered\n *\n */\n ;\n\n _proto.removeListener = function removeListener(eventType, listener) {\n var subscriptions = this._subscriber.getSubscriptionsForType(eventType);\n\n if (subscriptions) {\n for (var i = 0, l = subscriptions.length; i < l; i++) {\n var subscription = subscriptions[i]; // The subscription may have been removed during this event loop.\n // its listener matches the listener in method parameters\n\n if (subscription && subscription.listener === listener) {\n subscription.remove();\n }\n }\n }\n };\n\n return EventEmitter;\n}();\n\nexport default EventEmitter;","import { Component } from 'react'\n\nimport propTypes from './types.js'\n\nclass AbstractSelectInput extends Component {\n constructor(props) {\n super(props)\n\n this.state = {\n selectedValue: props.value\n }\n }\n\n componentWillReceiveProps(nextProps) {\n const { value } = this.props\n\n if (nextProps.value !== value) {\n this.setState({\n selectedValue: nextProps.value\n })\n }\n }\n\n focus() {\n // NOTE: - implemented on iOS only..\n }\n\n onCancel = () => {\n const { onEndEditing } = this.props\n onEndEditing && onEndEditing()\n }\n\n onSubmit = value => {\n const { onSubmitEditing } = this.props\n\n this.setState({ selectedValue: value }, function() {\n onSubmitEditing && onSubmitEditing(value)\n })\n }\n\n onValueChange = value => {\n const { onValueChange } = this.props\n onValueChange && onValueChange(value)\n }\n\n getValueLabel = () => {\n const { options, value } = this.props\n const valueOptions = options || [{ value: '', label: '' }]\n\n return (\n valueOptions.map(function(option) {\n if (option.value === value) {\n return option.label\n }\n }) || ''\n )\n }\n}\n\nAbstractSelectInput.propTypes = propTypes\n\nexport default AbstractSelectInput\n","export { default } from './AbstractSelectInput.js'\n","var isarray = require('isarray')\n\n/**\n * Expose `pathToRegexp`.\n */\nmodule.exports = pathToRegexp\nmodule.exports.parse = parse\nmodule.exports.compile = compile\nmodule.exports.tokensToFunction = tokensToFunction\nmodule.exports.tokensToRegExp = tokensToRegExp\n\n/**\n * The main path matching regexp utility.\n *\n * @type {RegExp}\n */\nvar PATH_REGEXP = new RegExp([\n // Match escaped characters that would otherwise appear in future matches.\n // This allows the user to escape special characters that won't transform.\n '(\\\\\\\\.)',\n // Match Express-style parameters and un-named parameters with a prefix\n // and optional suffixes. Matches appear as:\n //\n // \"/:test(\\\\d+)?\" => [\"/\", \"test\", \"\\d+\", undefined, \"?\", undefined]\n // \"/route(\\\\d+)\" => [undefined, undefined, undefined, \"\\d+\", undefined, undefined]\n // \"/*\" => [\"/\", undefined, undefined, undefined, undefined, \"*\"]\n '([\\\\/.])?(?:(?:\\\\:(\\\\w+)(?:\\\\(((?:\\\\\\\\.|[^\\\\\\\\()])+)\\\\))?|\\\\(((?:\\\\\\\\.|[^\\\\\\\\()])+)\\\\))([+*?])?|(\\\\*))'\n].join('|'), 'g')\n\n/**\n * Parse a string for the raw tokens.\n *\n * @param {string} str\n * @param {Object=} options\n * @return {!Array}\n */\nfunction parse (str, options) {\n var tokens = []\n var key = 0\n var index = 0\n var path = ''\n var defaultDelimiter = options && options.delimiter || '/'\n var res\n\n while ((res = PATH_REGEXP.exec(str)) != null) {\n var m = res[0]\n var escaped = res[1]\n var offset = res.index\n path += str.slice(index, offset)\n index = offset + m.length\n\n // Ignore already escaped sequences.\n if (escaped) {\n path += escaped[1]\n continue\n }\n\n var next = str[index]\n var prefix = res[2]\n var name = res[3]\n var capture = res[4]\n var group = res[5]\n var modifier = res[6]\n var asterisk = res[7]\n\n // Push the current path onto the tokens.\n if (path) {\n tokens.push(path)\n path = ''\n }\n\n var partial = prefix != null && next != null && next !== prefix\n var repeat = modifier === '+' || modifier === '*'\n var optional = modifier === '?' || modifier === '*'\n var delimiter = res[2] || defaultDelimiter\n var pattern = capture || group\n\n tokens.push({\n name: name || key++,\n prefix: prefix || '',\n delimiter: delimiter,\n optional: optional,\n repeat: repeat,\n partial: partial,\n asterisk: !!asterisk,\n pattern: pattern ? escapeGroup(pattern) : (asterisk ? '.*' : '[^' + escapeString(delimiter) + ']+?')\n })\n }\n\n // Match any characters still remaining.\n if (index < str.length) {\n path += str.substr(index)\n }\n\n // If the path exists, push it onto the end.\n if (path) {\n tokens.push(path)\n }\n\n return tokens\n}\n\n/**\n * Compile a string to a template function for the path.\n *\n * @param {string} str\n * @param {Object=} options\n * @return {!function(Object=, Object=)}\n */\nfunction compile (str, options) {\n return tokensToFunction(parse(str, options))\n}\n\n/**\n * Prettier encoding of URI path segments.\n *\n * @param {string}\n * @return {string}\n */\nfunction encodeURIComponentPretty (str) {\n return encodeURI(str).replace(/[\\/?#]/g, function (c) {\n return '%' + c.charCodeAt(0).toString(16).toUpperCase()\n })\n}\n\n/**\n * Encode the asterisk parameter. Similar to `pretty`, but allows slashes.\n *\n * @param {string}\n * @return {string}\n */\nfunction encodeAsterisk (str) {\n return encodeURI(str).replace(/[?#]/g, function (c) {\n return '%' + c.charCodeAt(0).toString(16).toUpperCase()\n })\n}\n\n/**\n * Expose a method for transforming tokens into the path function.\n */\nfunction tokensToFunction (tokens) {\n // Compile all the tokens into regexps.\n var matches = new Array(tokens.length)\n\n // Compile all the patterns before compilation.\n for (var i = 0; i < tokens.length; i++) {\n if (typeof tokens[i] === 'object') {\n matches[i] = new RegExp('^(?:' + tokens[i].pattern + ')$')\n }\n }\n\n return function (obj, opts) {\n var path = ''\n var data = obj || {}\n var options = opts || {}\n var encode = options.pretty ? encodeURIComponentPretty : encodeURIComponent\n\n for (var i = 0; i < tokens.length; i++) {\n var token = tokens[i]\n\n if (typeof token === 'string') {\n path += token\n\n continue\n }\n\n var value = data[token.name]\n var segment\n\n if (value == null) {\n if (token.optional) {\n // Prepend partial segment prefixes.\n if (token.partial) {\n path += token.prefix\n }\n\n continue\n } else {\n throw new TypeError('Expected \"' + token.name + '\" to be defined')\n }\n }\n\n if (isarray(value)) {\n if (!token.repeat) {\n throw new TypeError('Expected \"' + token.name + '\" to not repeat, but received `' + JSON.stringify(value) + '`')\n }\n\n if (value.length === 0) {\n if (token.optional) {\n continue\n } else {\n throw new TypeError('Expected \"' + token.name + '\" to not be empty')\n }\n }\n\n for (var j = 0; j < value.length; j++) {\n segment = encode(value[j])\n\n if (!matches[i].test(segment)) {\n throw new TypeError('Expected all \"' + token.name + '\" to match \"' + token.pattern + '\", but received `' + JSON.stringify(segment) + '`')\n }\n\n path += (j === 0 ? token.prefix : token.delimiter) + segment\n }\n\n continue\n }\n\n segment = token.asterisk ? encodeAsterisk(value) : encode(value)\n\n if (!matches[i].test(segment)) {\n throw new TypeError('Expected \"' + token.name + '\" to match \"' + token.pattern + '\", but received \"' + segment + '\"')\n }\n\n path += token.prefix + segment\n }\n\n return path\n }\n}\n\n/**\n * Escape a regular expression string.\n *\n * @param {string} str\n * @return {string}\n */\nfunction escapeString (str) {\n return str.replace(/([.+*?=^!:${}()[\\]|\\/\\\\])/g, '\\\\$1')\n}\n\n/**\n * Escape the capturing group by escaping special characters and meaning.\n *\n * @param {string} group\n * @return {string}\n */\nfunction escapeGroup (group) {\n return group.replace(/([=!:$\\/()])/g, '\\\\$1')\n}\n\n/**\n * Attach the keys as a property of the regexp.\n *\n * @param {!RegExp} re\n * @param {Array} keys\n * @return {!RegExp}\n */\nfunction attachKeys (re, keys) {\n re.keys = keys\n return re\n}\n\n/**\n * Get the flags for a regexp from the options.\n *\n * @param {Object} options\n * @return {string}\n */\nfunction flags (options) {\n return options.sensitive ? '' : 'i'\n}\n\n/**\n * Pull out keys from a regexp.\n *\n * @param {!RegExp} path\n * @param {!Array} keys\n * @return {!RegExp}\n */\nfunction regexpToRegexp (path, keys) {\n // Use a negative lookahead to match only capturing groups.\n var groups = path.source.match(/\\((?!\\?)/g)\n\n if (groups) {\n for (var i = 0; i < groups.length; i++) {\n keys.push({\n name: i,\n prefix: null,\n delimiter: null,\n optional: false,\n repeat: false,\n partial: false,\n asterisk: false,\n pattern: null\n })\n }\n }\n\n return attachKeys(path, keys)\n}\n\n/**\n * Transform an array into a regexp.\n *\n * @param {!Array} path\n * @param {Array} keys\n * @param {!Object} options\n * @return {!RegExp}\n */\nfunction arrayToRegexp (path, keys, options) {\n var parts = []\n\n for (var i = 0; i < path.length; i++) {\n parts.push(pathToRegexp(path[i], keys, options).source)\n }\n\n var regexp = new RegExp('(?:' + parts.join('|') + ')', flags(options))\n\n return attachKeys(regexp, keys)\n}\n\n/**\n * Create a path regexp from string input.\n *\n * @param {string} path\n * @param {!Array} keys\n * @param {!Object} options\n * @return {!RegExp}\n */\nfunction stringToRegexp (path, keys, options) {\n return tokensToRegExp(parse(path, options), keys, options)\n}\n\n/**\n * Expose a function for taking tokens and returning a RegExp.\n *\n * @param {!Array} tokens\n * @param {(Array|Object)=} keys\n * @param {Object=} options\n * @return {!RegExp}\n */\nfunction tokensToRegExp (tokens, keys, options) {\n if (!isarray(keys)) {\n options = /** @type {!Object} */ (keys || options)\n keys = []\n }\n\n options = options || {}\n\n var strict = options.strict\n var end = options.end !== false\n var route = ''\n\n // Iterate over the tokens and create our regexp string.\n for (var i = 0; i < tokens.length; i++) {\n var token = tokens[i]\n\n if (typeof token === 'string') {\n route += escapeString(token)\n } else {\n var prefix = escapeString(token.prefix)\n var capture = '(?:' + token.pattern + ')'\n\n keys.push(token)\n\n if (token.repeat) {\n capture += '(?:' + prefix + capture + ')*'\n }\n\n if (token.optional) {\n if (!token.partial) {\n capture = '(?:' + prefix + '(' + capture + '))?'\n } else {\n capture = prefix + '(' + capture + ')?'\n }\n } else {\n capture = prefix + '(' + capture + ')'\n }\n\n route += capture\n }\n }\n\n var delimiter = escapeString(options.delimiter || '/')\n var endsWithDelimiter = route.slice(-delimiter.length) === delimiter\n\n // In non-strict mode we allow a slash at the end of match. If the path to\n // match already ends with a slash, we remove it for consistency. The slash\n // is valid at the end of a path match, not in the middle. This is important\n // in non-ending mode, where \"/test/\" shouldn't match \"/test//route\".\n if (!strict) {\n route = (endsWithDelimiter ? route.slice(0, -delimiter.length) : route) + '(?:' + delimiter + '(?=$))?'\n }\n\n if (end) {\n route += '$'\n } else {\n // In non-ending mode, we need the capturing groups to match as much as\n // possible by using a positive lookahead to the end or next path segment.\n route += strict && endsWithDelimiter ? '' : '(?=' + delimiter + '|$)'\n }\n\n return attachKeys(new RegExp('^' + route, flags(options)), keys)\n}\n\n/**\n * Normalize the given path string, returning a regular expression.\n *\n * An empty array can be passed in for the keys, which will hold the\n * placeholder key descriptions. For example, using `/user/:id`, `keys` will\n * contain `[{ name: 'id', delimiter: '/', optional: false, repeat: false }]`.\n *\n * @param {(string|RegExp|Array)} path\n * @param {(Array|Object)=} keys\n * @param {Object=} options\n * @return {!RegExp}\n */\nfunction pathToRegexp (path, keys, options) {\n if (!isarray(keys)) {\n options = /** @type {!Object} */ (keys || options)\n keys = []\n }\n\n options = options || {}\n\n if (path instanceof RegExp) {\n return regexpToRegexp(path, /** @type {!Array} */ (keys))\n }\n\n if (isarray(path)) {\n return arrayToRegexp(/** @type {!Array} */ (path), /** @type {!Array} */ (keys), options)\n }\n\n return stringToRegexp(/** @type {string} */ (path), /** @type {!Array} */ (keys), options)\n}\n","\"use strict\";\n\n/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @typechecks\n */\nvar performance = require(\"./performance\");\n\nvar performanceNow;\n/**\n * Detect if we can use `window.performance.now()` and gracefully fallback to\n * `Date.now()` if it doesn't exist. We need to support Firefox < 15 for now\n * because of Facebook's testing infrastructure.\n */\n\nif (performance.now) {\n performanceNow = function performanceNow() {\n return performance.now();\n };\n} else {\n performanceNow = function performanceNow() {\n return Date.now();\n };\n}\n\nmodule.exports = performanceNow;","/* @flow */\n\nimport * as React from 'react';\nimport PropTypes from 'prop-types';\nimport {\n TouchableNativeFeedback,\n TouchableOpacity,\n Platform,\n View,\n} from 'react-native';\nimport type { ViewStyleProp } from 'react-native/Libraries/StyleSheet/StyleSheet';\n\nconst LOLLIPOP = 21;\n\ntype Props = {\n onPress: () => mixed,\n delayPressIn?: number,\n borderless?: boolean,\n pressColor?: string,\n pressOpacity?: number,\n children?: React.Node,\n style?: ViewStyleProp,\n};\n\nexport default class TouchableItem extends React.Component {\n static propTypes = {\n onPress: PropTypes.func.isRequired,\n delayPressIn: PropTypes.number,\n borderless: PropTypes.bool,\n pressColor: PropTypes.string,\n pressOpacity: PropTypes.number,\n children: PropTypes.node.isRequired,\n };\n\n static defaultProps = {\n pressColor: 'rgba(255, 255, 255, .4)',\n };\n\n render() {\n const { style, pressOpacity, pressColor, borderless, ...rest } = this.props;\n\n if (Platform.OS === 'android' && Platform.Version >= LOLLIPOP) {\n return (\n \n {React.Children.only(this.props.children)}\n \n );\n } else {\n return (\n \n {this.props.children}\n \n );\n }\n }\n}\n","import {\n getAssetForSource,\n loadSingleFontAsync,\n fontFamilyNeedsScoping,\n getNativeFontName,\n} from './FontLoader';\n\nimport { FontSource, FontResource } from './Font.types';\n\nconst loaded: { [name: string]: boolean } = {};\nconst loadPromises: { [name: string]: Promise } = {};\n\n/**\n * Used to transform font family names to the scoped name. This does not need to\n * be called in standalone or bare apps but it will return unscoped font family\n * names if it is called in those contexts.\n * note(brentvatne): at some point we may want to warn if this is called\n * outside of a managed app.\n */\nexport function processFontFamily(name: string | null): string | null {\n if (!name || !fontFamilyNeedsScoping(name)) {\n return name;\n }\n\n if (!isLoaded(name)) {\n if (__DEV__) {\n if (isLoading(name)) {\n console.error(\n `You started loading the font \"${name}\", but used it before it finished loading.\\n\n- You need to wait for Font.loadAsync to complete before using the font.\\n\n- We recommend loading all fonts before rendering the app, and rendering only Expo.AppLoading while waiting for loading to complete.`\n );\n } else {\n console.error(\n `fontFamily \"${name}\" is not a system font and has not been loaded through Font.loadAsync.\\n\n- If you intended to use a system font, make sure you typed the name correctly and that it is supported by your device operating system.\\n\n- If this is a custom font, be sure to load it with Font.loadAsync.`\n );\n }\n }\n\n return 'System';\n }\n\n return `ExpoFont-${getNativeFontName(name)}`;\n}\n\nexport function isLoaded(name: string): boolean {\n return loaded.hasOwnProperty(name);\n}\n\nexport function isLoading(name: string): boolean {\n return loadPromises.hasOwnProperty(name);\n}\n\nexport async function loadAsync(\n nameOrMap: string | { [name: string]: FontSource },\n source?: FontSource\n): Promise {\n if (typeof nameOrMap === 'object') {\n const fontMap = nameOrMap;\n const names = Object.keys(fontMap);\n await Promise.all(names.map(name => loadAsync(name, fontMap[name])));\n return;\n }\n\n const name = nameOrMap;\n\n if (loaded[name]) {\n return;\n }\n\n if (loadPromises[name]) {\n return loadPromises[name];\n }\n\n // Important: we want all callers that concurrently try to load the same font to await the same\n // promise. If we're here, we haven't created the promise yet. To ensure we create only one\n // promise in the program, we need to create the promise synchronously without yielding the event\n // loop from this point.\n\n if (!source) {\n throw new Error(`No source from which to load font \"${name}\"`);\n }\n const asset = getAssetForSource(source);\n loadPromises[name] = (async () => {\n try {\n await loadSingleFontAsync(name, asset);\n loaded[name] = true;\n } finally {\n delete loadPromises[name];\n }\n })();\n\n await loadPromises[name];\n}\n\nexport { FontSource, FontResource };\n\ndeclare var module: any;\n\nif (module && module.exports) {\n let wasImportWarningShown = false;\n // @ts-ignore: Temporarily define an export named \"Font\" for legacy compatibility\n Object.defineProperty(exports, 'Font', {\n get() {\n if (!wasImportWarningShown) {\n console.warn(\n `The syntax \"import { Font } from 'expo-font'\" is deprecated. Use \"import * as Font from 'expo-font'\" or import named exports instead. Support for the old syntax will be removed in SDK 33.`\n );\n wasImportWarningShown = true;\n }\n return {\n processFontFamily,\n isLoaded,\n isLoading,\n loadAsync,\n };\n },\n });\n}\n","\nlet uuid = new Date().getTime();\nexport default function getUniqueID() {\n\tuuid++;\n\treturn `rnmr_${uuid.toString(16)}`;\n}\n","const regSelectOpenClose = /_open|_close/g;\nconst regSelectHofH1 = /\\w/g;\n\n/**\n *\n * @example {\n \"type\": \"heading_open\",\n \"tag\": \"h1\",\n \"attrs\": null,\n \"map\": [\n 1,\n 2\n ],\n \"nesting\": 1,\n \"level\": 0,\n \"children\": null,\n \"content\": \"\",\n \"markup\": \"#\",\n \"info\": \"\",\n \"meta\": null,\n \"block\": true,\n \"hidden\": false\n }\n * @param token\n * @return {String}\n */\nexport default function getTokenTypeByToken(token) {\n let cleanedType = \"unknown\";\n\n if (token.type) {\n cleanedType = token.type.replace(regSelectOpenClose, \"\");\n }\n\n switch (cleanedType) {\n case \"heading\": {\n cleanedType = `${cleanedType}${token.tag.substr(1)}`;\n break;\n }\n }\n\n return cleanedType;\n}\n\n\n","import getUniqueID from './getUniqueID';\nimport getTokenTypeByToken from './getTokenTypeByToken';\n\n/**\n *\n * @param {{type: string, tag:string, content: string, children: *, attrs: Array, meta, info, block: boolean}} token\n * @param {number} tokenIndex\n * @return {{type: string, content, tokenIndex: *, index: number, attributes: {}, children: *}}\n */\nfunction createNode(token, tokenIndex) {\n const type = getTokenTypeByToken(token);\n const content = token.content;\n\n let attributes = {};\n\n if (token.attrs) {\n attributes = token.attrs.reduce((prev, curr) => {\n const [name, value] = curr;\n return { ...prev, [name]: value };\n }, {});\n }\n\n return {\n type,\n sourceType: token.type,\n sourceInfo: token.info,\n sourceMeta: token.meta,\n block: token.block,\n key: getUniqueID(),\n content,\n tokenIndex,\n index: 0,\n attributes,\n children: tokensToAST(token.children),\n };\n}\n\n/**\n *\n * @param {Array<{type: string, tag:string, content: string, children: *, attrs: Array}>}tokens\n * @return {Array}\n */\nexport default function tokensToAST(tokens) {\n let stack = [];\n let children = [];\n\n if (!tokens || tokens.length === 0) {\n return [];\n }\n\n for (let i = 0; i < tokens.length; i++) {\n const token = tokens[i];\n const astNode = createNode(token, i);\n\n if (!(astNode.type === 'text' && astNode.children.length === 0 && astNode.content === '')) {\n astNode.index = children.length;\n\n if (token.nesting === 1) {\n children.push(astNode);\n stack.push(children);\n children = astNode.children;\n } else if (token.nesting === -1) {\n children = stack.pop();\n } else if (token.nesting === 0) {\n children.push(astNode);\n }\n }\n }\n\n return children;\n}\n","import getTokenTypeByToken from './getTokenTypeByToken';\nimport flattenInlineTokens from './flattenInlineTokens';\n\nexport function cleanupTokens(tokens) {\n tokens = flattenInlineTokens(tokens);\n tokens.forEach(token => {\n token.type = getTokenTypeByToken(token);\n\n // set image and hardbreak to block elements\n if (token.type === 'image' || token.type === 'hardbreak') {\n token.block = true;\n }\n });\n\n /**\n * changing a link token to a blocklink to fix issue where link tokens with\n * nested non text tokens breaks component\n */\n const stack = [];\n tokens = tokens.reduce((acc, token, index) => {\n if (token.type === 'link' && token.nesting === 1) {\n stack.push(token);\n } else if (stack.length > 0 && token.type === 'link' && token.nesting === -1) {\n if (stack.some(stackToken => stackToken.block)) {\n stack[0].type = 'blocklink';\n stack[0].block = true;\n token.type = 'blocklink';\n token.block = true;\n }\n\n stack.push(token);\n\n while (stack.length) {\n acc.push(stack.shift());\n }\n } else if (stack.length > 0) {\n stack.push(token);\n } else {\n acc.push(token);\n }\n\n return acc;\n }, []);\n\n return tokens;\n}\n","export default function flattenTokens(tokens) {\n return tokens.reduce((acc, curr) => {\n if (curr.type === 'inline' && curr.children && curr.children.length > 0) {\n const children = flattenTokens(curr.children);\n while (children.length) {\n acc.push(children.shift());\n }\n } else {\n acc.push(curr);\n }\n\n return acc;\n }, []);\n}\n","export default class Token {\n constructor(type, nesting = 0, children = null, block = false) {\n this.type = type;\n this.nesting = nesting;\n this.children = children;\n this.block = block;\n }\n}\n","import React from 'react';\nimport { View } from 'react-native';\nimport tokensToAST from './util/tokensToAST';\nimport { stringToTokens } from './util/stringToTokens';\nimport { cleanupTokens } from './util/cleanupTokens';\nimport groupTextTokens from './util/groupTextTokens';\n\n/**\n *\n * @param {string} source\n * @param {function} [renderer]\n * @param {AstRenderer} [markdownIt]\n * @return {View}\n */\nexport default function parser(source, renderer, markdownIt) {\n let tokens = stringToTokens(source, markdownIt);\n tokens = cleanupTokens(tokens);\n tokens = groupTextTokens(tokens);\n\n const astTree = tokensToAST(tokens);\n\n return renderer(astTree);\n}\n","export function stringToTokens(source, markdownIt) {\n\tlet result = [];\n\ttry {\n\t\tresult = markdownIt.parse(source, {});\n\t} catch (err) {\n\t\tconsole.warn(err);\n\t}\n\n\treturn result;\n}\n","// import getIsTextType from './getIsTextType';\nimport Token from './Token';\n// import getIsInlineTextType from './getIsInlineTextType';\n\nexport default function groupTextTokens(tokens) {\n const result = [];\n\n let hasGroup = false;\n tokens.forEach((token, index) => {\n if (!token.block && !hasGroup) {\n hasGroup = true;\n result.push(new Token('textgroup', 1));\n result.push(token);\n } else if (!token.block && hasGroup) {\n result.push(token);\n } else if (token.block && hasGroup) {\n hasGroup = false;\n result.push(new Token('textgroup', -1));\n result.push(token);\n } else {\n result.push(token);\n }\n });\n\n return result;\n}\n","import React, { Component } from 'react';\nimport { Text } from 'react-native';\n\n/**\n *\n * @param Array children\n * @param Array styles\n * @param {string} type\n */\nexport default function applyStyle(children, styles, type) {\n if (!(styles instanceof Array)) {\n styles = [styles];\n }\n\n return children.map(child => {\n if (child.type.displayName === type) {\n return ;\n }\n\n return child;\n });\n}\n","/**\n *\n * @param {Array} parents\n * @param {string} type\n * @return {boolean}\n */\nexport default function hasParents(parents, type) {\n return parents.findIndex(el => el.type === type) > -1;\n\n}\n","import { Linking } from 'react-native';\n\nexport default function openUrl(url) {\n if (url) {\n Linking.openURL(url);\n }\n}\n","import React, { Component, PropTypes } from 'react';\nimport { Text, TouchableWithoutFeedback, View } from 'react-native';\n\nimport FitImage from 'react-native-fit-image';\nimport openUrl from './util/openUrl';\nimport hasParents from './util/hasParents';\nimport applyStyle from './util/applyStyle';\n\nconst renderRules = {\n // when unknown elements are introduced, so it wont break\n unknown: (node, children, parent, styles) => {\n return (\n \n {node.type}\n \n );\n },\n\n textgroup: (node, children, parent, styles) => {\n return (\n \n {children}\n \n );\n },\n\n inline: (node, children, parent, styles) => {\n return {children};\n },\n\n text: (node, children, parent, styles) => {\n return {node.content};\n },\n span: (node, children, parent, styles) => {\n return {children};\n },\n\n strong: (node, children, parent, styles) => {\n return (\n \n {children}\n \n );\n },\n\n s: (node, children, parent, styles) => {\n return (\n \n {children}\n \n );\n },\n // a\n link: (node, children, parent, styles) => {\n return (\n openUrl(node.attributes.href)}>\n {children}\n \n );\n },\n // a with a non text element nested inside\n blocklink: (node, children, parent, styles) => {\n return (\n openUrl(node.attributes.href)} style={styles.blocklink}>\n {children}\n \n );\n },\n em: (node, children, parent, styles) => {\n return (\n \n {children}\n \n );\n },\n\n heading1: (node, children, parent, styles) => {\n return (\n \n {applyStyle(children, [styles.heading, styles.heading1], 'Text')}\n \n );\n },\n\n heading2: (node, children, parent, styles) => {\n children = applyStyle(children, [styles.heading, styles.heading2], 'Text');\n return (\n \n {children}\n \n );\n },\n heading3: (node, children, parent, styles) => (\n \n {applyStyle(children, [styles.heading, styles.heading3], 'Text')}\n \n ),\n heading4: (node, children, parent, styles) => (\n \n {applyStyle(children, [styles.heading, styles.heading4], 'Text')}\n \n ),\n heading5: (node, children, parent, styles) => (\n \n {applyStyle(children, [styles.heading, styles.heading5], 'Text')}\n \n ),\n heading6: (node, children, parent, styles) => (\n \n {applyStyle(children, [styles.heading, styles.heading6], 'Text')}\n \n ),\n\n paragraph: (node, children, parent, styles) => (\n \n {children}\n \n ),\n\n hardbreak: (node, children, parent, styles) => ,\n\n blockquote: (node, children, parent, styles) => (\n \n {children}\n \n ),\n code_inline: (node, children, parent, styles) => {\n return (\n \n {node.content}\n \n );\n },\n code_block: (node, children, parent, styles) => {\n return (\n \n {node.content}\n \n );\n },\n fence: (node, children, parent, styles) => {\n return (\n \n {node.content}\n \n );\n },\n pre: (node, children, parent, styles) => (\n \n {children}\n \n ),\n // ul\n bullet_list: (node, children, parent, styles) => {\n return (\n \n {children}\n \n );\n },\n ordered_list: (node, children, parent, styles) => {\n return (\n \n {children}\n \n );\n },\n // li\n list_item: (node, children, parent, styles) => {\n if (hasParents(parent, 'bullet_list')) {\n return (\n \n {'\\u00B7'}\n {children}\n \n );\n }\n\n if (hasParents(parent, 'ordered_list')) {\n return (\n \n {node.index + 1}\n {children}\n \n );\n }\n\n return (\n \n {children}\n \n );\n },\n table: (node, children, parent, styles) => (\n \n {children}\n \n ),\n thead: (node, children, parent, styles) => (\n \n {children}\n \n ),\n tbody: (node, children, parent, styles) => {children},\n th: (node, children, parent, styles) => {\n return (\n \n {children}\n \n );\n },\n tr: (node, children, parent, styles) => {\n return (\n \n {children}\n \n );\n },\n td: (node, children, parent, styles) => {\n return (\n \n {children}\n \n );\n },\n hr: (node, children, parent, styles) => {\n return ;\n },\n\n // br\n softbreak: (node, children, parent, styles) => {'\\n'},\n image: (node, children, parent, styles) => {\n return ;\n },\n};\n\nexport default renderRules;\n","import React, { Component, PropTypes } from \"react\";\nimport { Text, View } from \"react-native\";\nimport getUniqueID from \"./util/getUniqueID\";\n\nexport function rootRenderRule(children, styles) {\n return {children};\n}\n\n/**\n *\n */\nexport default class AstRenderer {\n /**\n *\n * @param {Object.} renderRules\n * @param {any} style\n */\n constructor(renderRules, style) {\n this._renderRules = renderRules;\n this._style = style;\n }\n\n /**\n *\n * @param {string} type\n * @return {string}\n */\n getRenderFunction = type => {\n const renderFunction = this._renderRules[type];\n\n if (!renderFunction) {\n throw new Error(\n `${type} renderRule not defined example: `\n );\n }\n return renderFunction;\n };\n\n /**\n *\n * @param node\n * @param parentNodes\n * @return {*}\n */\n renderNode = (node, parentNodes) => {\n const renderFunction = this.getRenderFunction(node.type);\n\n const parents = [...parentNodes];\n parents.unshift(node);\n\n if (node.type === \"text\") {\n return renderFunction(node, [], parentNodes, this._style);\n }\n\n const children = node.children.map(value => {\n return this.renderNode(value, parents);\n });\n\n return renderFunction(node, children, parentNodes, this._style);\n };\n\n /**\n *\n * @param nodes\n * @return {*}\n */\n render = nodes => {\n const children = nodes.map(value => this.renderNode(value, []));\n return rootRenderRule(children, this._style);\n };\n}\n","export default {\n IOS: \"ios\",\n ANDROID: \"android\"\n};\n","import { Platform, StyleSheet } from 'react-native';\nimport PlatformEnum from './data/PlatformEnum';\n\n/**\n *\n */\nexport const styles = StyleSheet.create({\n root: {},\n view: {},\n codeBlock: {\n borderWidth: 1,\n borderColor: '#CCCCCC',\n backgroundColor: '#f5f5f5',\n padding: 10,\n borderRadius: 4,\n },\n codeInline: {\n borderWidth: 1,\n borderColor: '#CCCCCC',\n backgroundColor: '#f5f5f5',\n padding: 10,\n borderRadius: 4,\n },\n del: {\n backgroundColor: '#000000',\n },\n em: {\n fontStyle: 'italic',\n },\n headingContainer: {\n flexDirection: 'row',\n },\n heading: {},\n heading1: {\n fontSize: 32,\n },\n heading2: {\n fontSize: 24,\n },\n heading3: {\n fontSize: 18,\n },\n heading4: {\n fontSize: 16,\n },\n heading5: {\n fontSize: 13,\n },\n heading6: {\n fontSize: 11,\n },\n hr: {\n backgroundColor: '#000000',\n height: 1,\n },\n blockquote: {\n paddingHorizontal: 20,\n paddingVertical: 10,\n margin: 20,\n backgroundColor: '#CCCCCC',\n },\n inlineCode: {\n borderRadius: 3,\n borderWidth: 1,\n fontFamily: 'Courier',\n fontWeight: 'bold',\n },\n list: {},\n listItem: {\n flex: 1,\n flexWrap: 'wrap',\n // backgroundColor: 'green',\n },\n listUnordered: {},\n\n listUnorderedItem: {\n flexDirection: 'row',\n justifyContent: 'flex-start',\n },\n\n listUnorderedItemIcon: {\n marginLeft: 10,\n marginRight: 10,\n ...Platform.select({\n [PlatformEnum.IOS]: {\n lineHeight: 36,\n },\n [PlatformEnum.ANDROID]: {\n lineHeight: 30,\n },\n }),\n },\n listUnorderedItemText: {\n fontSize: 20,\n lineHeight: 20,\n },\n\n listOrdered: {},\n listOrderedItem: {\n flexDirection: 'row',\n },\n listOrderedItemIcon: {\n marginLeft: 10,\n marginRight: 10,\n ...Platform.select({\n [PlatformEnum.IOS]: {\n lineHeight: 36,\n },\n [PlatformEnum.ANDROID]: {\n lineHeight: 30,\n },\n }),\n },\n listOrderedItemText: {\n fontWeight: 'bold',\n lineHeight: 20,\n },\n paragraph: {\n marginTop: 10,\n marginBottom: 10,\n flexWrap: 'wrap',\n flexDirection: 'row',\n alignItems: 'flex-start',\n justifyContent: 'flex-start',\n },\n hardbreak: {\n width: '100%',\n height: 1,\n },\n strong: {\n fontWeight: 'bold',\n },\n table: {\n borderWidth: 1,\n borderColor: '#000000',\n borderRadius: 3,\n },\n tableHeader: {},\n tableHeaderCell: {\n flex: 1,\n // color: '#000000',\n padding: 5,\n // backgroundColor: 'green',\n },\n tableRow: {\n borderBottomWidth: 1,\n borderColor: '#000000',\n flexDirection: 'row',\n },\n tableRowCell: {\n flex: 1,\n padding: 5,\n },\n text: {},\n strikethrough: {\n textDecorationLine: 'line-through',\n },\n link: {\n textDecorationLine: 'underline',\n },\n blocklink: {\n flex: 1,\n borderColor: '#000000',\n borderBottomWidth: 1,\n\n },\n u: {\n borderColor: '#000000',\n borderBottomWidth: 1,\n },\n image: {\n flex: 1,\n },\n});\n","/**\n * Base Markdown component\n * @author Mient-jan Stelling\n */\nimport React, { Component } from 'react';\nimport PropTypes from 'prop-types';\nimport { View } from 'react-native';\nimport parser from './lib/parser';\nimport applyStyle from './lib/util/applyStyle';\nimport getUniqueID from './lib/util/getUniqueID';\nimport hasParents from './lib/util/hasParents';\nimport openUrl from './lib/util/openUrl';\nimport tokensToAST from './lib/util/tokensToAST';\nimport renderRules from './lib/renderRules';\nimport AstRenderer from './lib/AstRenderer';\nimport MarkdownIt from 'markdown-it';\nimport PluginContainer from './lib/plugin/PluginContainer';\nimport blockPlugin from './lib/plugin/blockPlugin';\nimport { styles } from './lib/styles';\nimport { stringToTokens } from './lib/util/stringToTokens';\n/**\n *\n */\nexport {\n applyStyle,\n getUniqueID,\n openUrl,\n hasParents,\n renderRules,\n AstRenderer,\n parser,\n stringToTokens,\n tokensToAST,\n MarkdownIt,\n PluginContainer,\n blockPlugin,\n styles,\n};\n\n/**\n * react-native-markdown-renderer\n */\nexport default class Markdown extends Component {\n /**\n * Definition of the prop types\n */\n static propTypes = {\n children: PropTypes.node.isRequired,\n renderer: PropTypes.oneOfType([PropTypes.func, PropTypes.instanceOf(AstRenderer)]),\n rules: (props, propName, componentName) => {\n let invalidProps = [];\n const prop = props[propName];\n\n if (!prop) {\n return;\n }\n\n if (typeof prop === 'object') {\n invalidProps = Object.keys(prop).filter(key => typeof prop[key] !== 'function');\n }\n\n if (typeof prop !== 'object') {\n return new Error(\n `Invalid prop \\`${propName}\\` supplied to \\`${componentName}\\`. Must be of shape {[index:string]:function} `\n );\n } else if (invalidProps.length > 0) {\n return new Error(\n `Invalid prop \\`${propName}\\` supplied to \\`${componentName}\\`. These ` +\n `props are not of type function \\`${invalidProps.join(', ')}\\` `\n );\n }\n },\n markdownit: PropTypes.instanceOf(MarkdownIt),\n plugins: PropTypes.arrayOf(PropTypes.instanceOf(PluginContainer)),\n style: PropTypes.any,\n };\n\n /**\n * Default Props\n */\n static defaultProps = {\n renderer: null,\n rules: null,\n plugins: [],\n style: null,\n markdownit: MarkdownIt({\n typographer: true,\n }),\n };\n\n copy = '';\n renderer = null;\n markdownParser = null;\n\n /**\n * Only when the copy changes will the markdown render again.\n * @param nextProps\n * @param nextState\n * @return {boolean}\n */\n shouldComponentUpdate(nextProps, nextState) {\n const copy = this.getCopyFromChildren(nextProps.children);\n\n if (copy !== this.copy) {\n this.copy = copy;\n return true;\n }\n\n if (\n nextProps.renderer !== this.props.renderer ||\n nextProps.style !== this.props.style ||\n nextProps.plugins !== this.props.plugins ||\n nextProps.rules !== this.props.rules ||\n nextProps.markdownit !== this.props.markdownit\n ) {\n return true;\n }\n\n return false;\n }\n\n /**\n *\n * @param props\n */\n updateSettings(props = this.props) {\n const { renderer, rules, style, plugins, markdownit } = props;\n\n if (renderer && rules) {\n console.warn(\n 'react-native-markdown-renderer you are using renderer and rules at the same time. This is not possible, props.rules is ignored'\n );\n }\n\n if (renderer && style) {\n console.warn(\n 'react-native-markdown-renderer you are using renderer and style at the same time. This is not possible, props.style is ignored'\n );\n }\n\n // these checks are here to prevent extra overhead.\n if (renderer) {\n if (typeof renderer === 'function') {\n if (!this.renderer || this.renderer.render !== renderer) {\n this.renderer = {\n render: renderer,\n };\n }\n } else if (renderer instanceof AstRenderer) {\n if (this.renderer !== renderer) {\n this.renderer = renderer;\n }\n } else {\n throw new Error('Provided renderer is not compatible with function or AstRenderer. please change');\n }\n } else {\n if (!this.renderer || this.props.renderer || this.props.rules !== rules || this.props.style !== style) {\n this.renderer = new AstRenderer(\n {\n ...renderRules,\n ...(rules || {}),\n },\n {\n ...styles,\n ...style,\n }\n );\n }\n }\n\n if (!this.markdownParser || this.props.markdownit !== markdownit || plugins !== this.props.plugins) {\n let md = markdownit;\n if (plugins && plugins.length > 0) {\n plugins.forEach(plugin => {\n md = md.use.apply(md, plugin.toArray());\n });\n }\n\n this.markdownParser = md;\n }\n }\n\n /**\n *\n */\n componentWillMount() {\n this.updateSettings(this.props);\n }\n\n /**\n *\n * @param nextProps\n */\n componentWillReceiveProps(nextProps) {\n this.updateSettings(nextProps);\n }\n\n /**\n *\n * @param children\n * @return {string}\n */\n getCopyFromChildren(children = this.props.children) {\n return children instanceof Array ? children.join('') : children;\n }\n\n /**\n *\n * @return {View}\n */\n render() {\n const copy = (this.copy = this.getCopyFromChildren());\n return parser(copy, this.renderer.render, this.markdownParser);\n }\n}\n","export default class PluginContainer {\n constructor(plugin, ...options) {\n this.plugin = plugin;\n this.options = options;\n }\n\n toArray() {\n return [this.plugin, ...this.options];\n }\n}\n","import React from 'react';\nimport { ScrollView, Platform, FlatList, SectionList, RefreshControl } from 'react-native';\nimport { ScrollView as GHScrollView } from 'react-native-gesture-handler';\nimport createNavigationAwareScrollable from './createNavigationAwareScrollable';\nimport invariant from './utils/invariant';\n\nlet WrappedScrollView;\nif (Platform.OS === 'android') {\n // @todo: use GHScrollView again when\n // https://github.com/kmagiera/react-native-gesture-handler/issues/560 has\n // been fixed.\n WrappedScrollView = createNavigationAwareScrollable(ScrollView);\n} else {\n WrappedScrollView = createNavigationAwareScrollable(GHScrollView);\n}\n\nfunction propsMaybeWithRefreshControl(props) {\n const onRefresh = props.onRefresh;\n if (onRefresh) {\n invariant(typeof props.refreshing === 'boolean', '`refreshing` prop must be set as a boolean in order to use `onRefresh`, but got `' + JSON.stringify(props.refreshing) + '`');\n return {\n ...props,\n refreshControl: props.refreshControl == null ? : props.refreshControl\n };\n } else {\n return props;\n }\n}\n\nconst WrappedFlatList = React.forwardRef((props, ref) => } />);\n\nconst WrappedSectionList = React.forwardRef((props, ref) => } />);\n\n// eslint-disable-next-line import/no-commonjs\nmodule.exports = {\n ScrollView: WrappedScrollView,\n FlatList: WrappedFlatList,\n SectionList: WrappedSectionList\n};","module.exports = function(originalModule) {\n\tif (!originalModule.webpackPolyfill) {\n\t\tvar module = Object.create(originalModule);\n\t\t// module.parent = undefined by default\n\t\tif (!module.children) module.children = [];\n\t\tObject.defineProperty(module, \"loaded\", {\n\t\t\tenumerable: true,\n\t\t\tget: function() {\n\t\t\t\treturn module.l;\n\t\t\t}\n\t\t});\n\t\tObject.defineProperty(module, \"id\", {\n\t\t\tenumerable: true,\n\t\t\tget: function() {\n\t\t\t\treturn module.i;\n\t\t\t}\n\t\t});\n\t\tObject.defineProperty(module, \"exports\", {\n\t\t\tenumerable: true\n\t\t});\n\t\tmodule.webpackPolyfill = 1;\n\t}\n\treturn module;\n};\n","import React from 'react';\n\n// This component is a stub to support React Native web\nexport default function PagerAndroid() {\n return PagerAndroid is not supported on web.
;\n}\n","/* @flow */\n\nimport * as React from 'react';\nimport PropTypes from 'prop-types';\nimport { View, ScrollView, StyleSheet } from 'react-native';\nimport { PagerRendererPropType } from './PropTypes';\nimport type { PagerRendererProps } from './TypeDefinitions';\n\ntype ScrollEvent = {\n nativeEvent: {\n contentOffset: {\n x: number,\n y: number,\n },\n contentSize: {\n height: number,\n width: number,\n },\n },\n};\n\ntype State = {|\n initialOffset: {| x: number, y: number |},\n|};\n\ntype Props = PagerRendererProps & {\n bounces: boolean,\n};\n\nexport default class PagerScroll extends React.Component<\n Props,\n State\n> {\n static propTypes = {\n ...PagerRendererPropType,\n bounces: PropTypes.bool.isRequired,\n };\n\n static defaultProps = {\n canJumpToTab: () => true,\n bounces: false,\n };\n\n constructor(props: Props) {\n super(props);\n\n const { navigationState, layout } = this.props;\n\n this.state = {\n initialOffset: {\n x: navigationState.index * layout.width,\n y: 0,\n },\n };\n }\n\n componentDidMount() {\n this._setInitialPage();\n }\n\n componentDidUpdate(prevProps: Props) {\n const amount = this.props.navigationState.index * this.props.layout.width;\n\n if (\n prevProps.navigationState.routes.length !==\n this.props.navigationState.routes.length ||\n prevProps.layout.width !== this.props.layout.width\n ) {\n this._scrollTo(amount, false);\n } else if (\n prevProps.navigationState.index !== this.props.navigationState.index\n ) {\n this._scrollTo(amount);\n }\n }\n\n _scrollView: ?ScrollView;\n _idleCallback: any;\n _isIdle: boolean = true;\n _isInitial: boolean = true;\n\n _setInitialPage = () => {\n if (this.props.layout.width) {\n this._isInitial = true;\n this._scrollTo(\n this.props.navigationState.index * this.props.layout.width,\n false\n );\n }\n\n setTimeout(() => {\n this._isInitial = false;\n }, 50);\n };\n\n _scrollTo = (x: number, animated = true) => {\n if (this._isIdle && this._scrollView) {\n this._scrollView.scrollTo({\n x,\n animated: animated && this.props.animationEnabled !== false,\n });\n }\n };\n\n _handleMomentumScrollEnd = (e: ScrollEvent) => {\n let nextIndex = Math.round(\n e.nativeEvent.contentOffset.x / this.props.layout.width\n );\n\n const nextRoute = this.props.navigationState.routes[nextIndex];\n\n if (this.props.canJumpToTab({ route: nextRoute })) {\n this.props.jumpTo(nextRoute.key);\n this.props.onAnimationEnd && this.props.onAnimationEnd();\n } else {\n global.requestAnimationFrame(() => {\n this._scrollTo(\n this.props.navigationState.index * this.props.layout.width\n );\n });\n }\n };\n\n _handleScroll = (e: ScrollEvent) => {\n if (this._isInitial || e.nativeEvent.contentSize.width === 0) {\n return;\n }\n\n const { navigationState, layout } = this.props;\n const offset = navigationState.index * layout.width;\n\n this.props.offsetX.setValue(-offset);\n this.props.panX.setValue(offset - e.nativeEvent.contentOffset.x);\n\n global.cancelAnimationFrame(this._idleCallback);\n\n this._isIdle = false;\n this._idleCallback = global.requestAnimationFrame(() => {\n this._isIdle = true;\n });\n };\n\n render() {\n const {\n children,\n layout,\n navigationState,\n onSwipeStart,\n onSwipeEnd,\n bounces,\n } = this.props;\n\n return (\n (this._scrollView = el)}\n >\n {React.Children.map(children, (child, i) => {\n const route = navigationState.routes[i];\n const focused = i === navigationState.index;\n\n return (\n \n {focused || layout.width ? child : null}\n \n );\n })}\n \n );\n }\n}\n\nconst styles = StyleSheet.create({\n container: {\n flex: 1,\n },\n page: {\n flex: 1,\n overflow: 'hidden',\n },\n});\n","/* @flow */\n\nimport * as React from 'react';\nimport PropTypes from 'prop-types';\nimport {\n Animated,\n I18nManager,\n PanResponder,\n StyleSheet,\n View,\n Platform,\n} from 'react-native';\nimport { PagerRendererPropType } from './PropTypes';\nimport type { PagerRendererProps } from './TypeDefinitions';\n\ntype GestureEvent = {\n nativeEvent: {\n changedTouches: Array<*>,\n identifier: number,\n locationX: number,\n locationY: number,\n pageX: number,\n pageY: number,\n target: number,\n timestamp: number,\n touches: Array<*>,\n },\n};\n\ntype GestureState = {\n stateID: number,\n moveX: number,\n moveY: number,\n x0: number,\n y0: number,\n dx: number,\n dy: number,\n vx: number,\n vy: number,\n numberActiveTouches: number,\n};\n\ntype Props = PagerRendererProps & {\n swipeDistanceThreshold?: number,\n swipeVelocityThreshold?: number,\n};\n\nconst DEAD_ZONE = 12;\n\nconst DefaultTransitionSpec = {\n timing: Animated.spring,\n tension: 300,\n friction: 35,\n};\n\nexport default class PagerPan extends React.Component> {\n static propTypes = {\n ...PagerRendererPropType,\n swipeDistanceThreshold: PropTypes.number,\n swipeVelocityThreshold: PropTypes.number,\n };\n\n static defaultProps = {\n canJumpToTab: () => true,\n initialLayout: {\n height: 0,\n width: 0,\n },\n };\n\n componentDidUpdate(prevProps: Props) {\n this._currentIndex = this.props.navigationState.index;\n\n if (\n prevProps.navigationState.routes.length !==\n this.props.navigationState.routes.length ||\n prevProps.layout.width !== this.props.layout.width\n ) {\n this._transitionTo(this.props.navigationState.index, false);\n } else if (\n prevProps.navigationState.index !== this.props.navigationState.index\n ) {\n this._transitionTo(this.props.navigationState.index);\n }\n }\n\n _currentIndex = this.props.navigationState.index;\n _pendingIndex: ?number;\n\n _isMovingHorizontally = (evt: GestureEvent, gestureState: GestureState) => {\n return (\n Math.abs(gestureState.dx) > Math.abs(gestureState.dy * 2) &&\n Math.abs(gestureState.vx) > Math.abs(gestureState.vy * 2)\n );\n };\n\n _canMoveScreen = (evt: GestureEvent, gestureState: GestureState) => {\n if (this.props.swipeEnabled === false) {\n return false;\n }\n\n const {\n navigationState: { routes },\n } = this.props;\n\n return (\n this._isMovingHorizontally(evt, gestureState) &&\n ((gestureState.dx >= DEAD_ZONE && this._currentIndex > 0) ||\n (gestureState.dx <= -DEAD_ZONE &&\n this._currentIndex < routes.length - 1))\n );\n };\n\n _startGesture = () => {\n this.props.onSwipeStart && this.props.onSwipeStart();\n this.props.panX.stopAnimation();\n };\n\n _respondToGesture = (evt: GestureEvent, gestureState: GestureState) => {\n const {\n navigationState: { routes, index },\n } = this.props;\n\n if (\n // swiping left\n (gestureState.dx > 0 && index <= 0) ||\n // swiping right\n (gestureState.dx < 0 && index >= routes.length - 1)\n ) {\n return;\n }\n\n this.props.panX.setValue(gestureState.dx);\n };\n\n _finishGesture = (evt: GestureEvent, gestureState: GestureState) => {\n const {\n navigationState,\n layout,\n swipeDistanceThreshold = layout.width / 1.75,\n } = this.props;\n\n let { swipeVelocityThreshold = 0.15 } = this.props;\n\n this.props.onSwipeEnd && this.props.onSwipeEnd();\n\n if (Platform.OS === 'android') {\n // on Android, velocity is way lower due to timestamp being in nanosecond\n // normalize it to have the same velocity on both iOS and Android\n swipeVelocityThreshold /= 1000000;\n }\n\n const currentIndex =\n typeof this._pendingIndex === 'number'\n ? this._pendingIndex\n : this._currentIndex;\n\n let nextIndex = currentIndex;\n\n if (\n Math.abs(gestureState.dx) > Math.abs(gestureState.dy) &&\n Math.abs(gestureState.vx) > Math.abs(gestureState.vy) &&\n (Math.abs(gestureState.dx) > swipeDistanceThreshold ||\n Math.abs(gestureState.vx) > swipeVelocityThreshold)\n ) {\n nextIndex = Math.round(\n Math.min(\n Math.max(\n 0,\n currentIndex - gestureState.dx / Math.abs(gestureState.dx)\n ),\n navigationState.routes.length - 1\n )\n );\n\n this._currentIndex = nextIndex;\n }\n\n if (\n !isFinite(nextIndex) ||\n !this.props.canJumpToTab({\n route: this.props.navigationState.routes[nextIndex],\n })\n ) {\n nextIndex = currentIndex;\n }\n\n this._transitionTo(nextIndex);\n };\n\n _transitionTo = (index: number, animated: boolean = true) => {\n const offset = -index * this.props.layout.width;\n const route = this.props.navigationState.routes[index];\n\n if (this.props.animationEnabled === false || animated === false) {\n this.props.panX.setValue(0);\n this.props.offsetX.setValue(offset);\n this.props.jumpTo(route.key);\n return;\n }\n\n const { timing, ...transitionConfig } = DefaultTransitionSpec;\n\n Animated.parallel([\n timing(this.props.panX, {\n ...transitionConfig,\n toValue: 0,\n }),\n timing(this.props.offsetX, {\n ...transitionConfig,\n toValue: offset,\n }),\n ]).start(({ finished }) => {\n if (finished) {\n this.props.jumpTo(route.key);\n this.props.onAnimationEnd && this.props.onAnimationEnd();\n this._pendingIndex = null;\n }\n });\n\n this._pendingIndex = index;\n };\n\n _panResponder = PanResponder.create({\n onMoveShouldSetPanResponder: this._canMoveScreen,\n onMoveShouldSetPanResponderCapture: this._canMoveScreen,\n onPanResponderGrant: this._startGesture,\n onPanResponderMove: this._respondToGesture,\n onPanResponderTerminate: this._finishGesture,\n onPanResponderRelease: this._finishGesture,\n onPanResponderTerminationRequest: () => true,\n });\n\n render() {\n const { panX, offsetX, navigationState, layout, children } = this.props;\n const { width } = layout;\n const { routes } = navigationState;\n const maxTranslate = width * (routes.length - 1);\n const translateX = Animated.multiply(\n Animated.add(panX, offsetX).interpolate({\n inputRange: [-maxTranslate, 0],\n outputRange: [-maxTranslate, 0],\n extrapolate: 'clamp',\n }),\n I18nManager.isRTL ? -1 : 1\n );\n\n return (\n \n {React.Children.map(children, (child, i) => {\n const route = navigationState.routes[i];\n const focused = i === navigationState.index;\n\n return (\n \n {focused || width ? child : null}\n \n );\n })}\n \n );\n }\n}\n\nconst styles = StyleSheet.create({\n sheet: {\n flex: 1,\n flexDirection: 'row',\n alignItems: 'stretch',\n },\n});\n","var getNative = require('./_getNative'),\n root = require('./_root');\n\n/* Built-in method references that are verified to be native. */\nvar Map = getNative(root, 'Map');\n\nmodule.exports = Map;\n","var baseAssignValue = require('./_baseAssignValue'),\n eq = require('./eq');\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Assigns `value` to `key` of `object` if the existing value is not equivalent\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\nfunction assignValue(object, key, value) {\n var objValue = object[key];\n if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||\n (value === undefined && !(key in object))) {\n baseAssignValue(object, key, value);\n }\n}\n\nmodule.exports = assignValue;\n","var arrayLikeKeys = require('./_arrayLikeKeys'),\n baseKeys = require('./_baseKeys'),\n isArrayLike = require('./isArrayLike');\n\n/**\n * Creates an array of the own enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects. See the\n * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * for more details.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keys(new Foo);\n * // => ['a', 'b'] (iteration order is not guaranteed)\n *\n * _.keys('hi');\n * // => ['0', '1']\n */\nfunction keys(object) {\n return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);\n}\n\nmodule.exports = keys;\n","var baseIsArguments = require('./_baseIsArguments'),\n isObjectLike = require('./isObjectLike');\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/** Built-in value references. */\nvar propertyIsEnumerable = objectProto.propertyIsEnumerable;\n\n/**\n * Checks if `value` is likely an `arguments` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n * else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\nvar isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {\n return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&\n !propertyIsEnumerable.call(value, 'callee');\n};\n\nmodule.exports = isArguments;\n","/** Used as references for various `Number` constants. */\nvar MAX_SAFE_INTEGER = 9007199254740991;\n\n/** Used to detect unsigned integer values. */\nvar reIsUint = /^(?:0|[1-9]\\d*)$/;\n\n/**\n * Checks if `value` is a valid array-like index.\n *\n * @private\n * @param {*} value The value to check.\n * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n */\nfunction isIndex(value, length) {\n var type = typeof value;\n length = length == null ? MAX_SAFE_INTEGER : length;\n\n return !!length &&\n (type == 'number' ||\n (type != 'symbol' && reIsUint.test(value))) &&\n (value > -1 && value % 1 == 0 && value < length);\n}\n\nmodule.exports = isIndex;\n","/** Used as references for various `Number` constants. */\nvar MAX_SAFE_INTEGER = 9007199254740991;\n\n/**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This method is loosely based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n * @example\n *\n * _.isLength(3);\n * // => true\n *\n * _.isLength(Number.MIN_VALUE);\n * // => false\n *\n * _.isLength(Infinity);\n * // => false\n *\n * _.isLength('3');\n * // => false\n */\nfunction isLength(value) {\n return typeof value == 'number' &&\n value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n}\n\nmodule.exports = isLength;\n","/**\n * The base implementation of `_.unary` without support for storing metadata.\n *\n * @private\n * @param {Function} func The function to cap arguments for.\n * @returns {Function} Returns the new capped function.\n */\nfunction baseUnary(func) {\n return function(value) {\n return func(value);\n };\n}\n\nmodule.exports = baseUnary;\n","var freeGlobal = require('./_freeGlobal');\n\n/** Detect free variable `exports`. */\nvar freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n/** Detect free variable `module`. */\nvar freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n/** Detect the popular CommonJS extension `module.exports`. */\nvar moduleExports = freeModule && freeModule.exports === freeExports;\n\n/** Detect free variable `process` from Node.js. */\nvar freeProcess = moduleExports && freeGlobal.process;\n\n/** Used to access faster Node.js helpers. */\nvar nodeUtil = (function() {\n try {\n // Use `util.types` for Node.js 10+.\n var types = freeModule && freeModule.require && freeModule.require('util').types;\n\n if (types) {\n return types;\n }\n\n // Legacy `process.binding('util')` for Node.js < 10.\n return freeProcess && freeProcess.binding && freeProcess.binding('util');\n } catch (e) {}\n}());\n\nmodule.exports = nodeUtil;\n","/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Checks if `value` is likely a prototype object.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.\n */\nfunction isPrototype(value) {\n var Ctor = value && value.constructor,\n proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;\n\n return value === proto;\n}\n\nmodule.exports = isPrototype;\n","var arrayFilter = require('./_arrayFilter'),\n stubArray = require('./stubArray');\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Built-in value references. */\nvar propertyIsEnumerable = objectProto.propertyIsEnumerable;\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeGetSymbols = Object.getOwnPropertySymbols;\n\n/**\n * Creates an array of the own enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\nvar getSymbols = !nativeGetSymbols ? stubArray : function(object) {\n if (object == null) {\n return [];\n }\n object = Object(object);\n return arrayFilter(nativeGetSymbols(object), function(symbol) {\n return propertyIsEnumerable.call(object, symbol);\n });\n};\n\nmodule.exports = getSymbols;\n","/**\n * Appends the elements of `values` to `array`.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {Array} values The values to append.\n * @returns {Array} Returns `array`.\n */\nfunction arrayPush(array, values) {\n var index = -1,\n length = values.length,\n offset = array.length;\n\n while (++index < length) {\n array[offset + index] = values[index];\n }\n return array;\n}\n\nmodule.exports = arrayPush;\n","var overArg = require('./_overArg');\n\n/** Built-in value references. */\nvar getPrototype = overArg(Object.getPrototypeOf, Object);\n\nmodule.exports = getPrototype;\n","var DataView = require('./_DataView'),\n Map = require('./_Map'),\n Promise = require('./_Promise'),\n Set = require('./_Set'),\n WeakMap = require('./_WeakMap'),\n baseGetTag = require('./_baseGetTag'),\n toSource = require('./_toSource');\n\n/** `Object#toString` result references. */\nvar mapTag = '[object Map]',\n objectTag = '[object Object]',\n promiseTag = '[object Promise]',\n setTag = '[object Set]',\n weakMapTag = '[object WeakMap]';\n\nvar dataViewTag = '[object DataView]';\n\n/** Used to detect maps, sets, and weakmaps. */\nvar dataViewCtorString = toSource(DataView),\n mapCtorString = toSource(Map),\n promiseCtorString = toSource(Promise),\n setCtorString = toSource(Set),\n weakMapCtorString = toSource(WeakMap);\n\n/**\n * Gets the `toStringTag` of `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\nvar getTag = baseGetTag;\n\n// Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.\nif ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||\n (Map && getTag(new Map) != mapTag) ||\n (Promise && getTag(Promise.resolve()) != promiseTag) ||\n (Set && getTag(new Set) != setTag) ||\n (WeakMap && getTag(new WeakMap) != weakMapTag)) {\n getTag = function(value) {\n var result = baseGetTag(value),\n Ctor = result == objectTag ? value.constructor : undefined,\n ctorString = Ctor ? toSource(Ctor) : '';\n\n if (ctorString) {\n switch (ctorString) {\n case dataViewCtorString: return dataViewTag;\n case mapCtorString: return mapTag;\n case promiseCtorString: return promiseTag;\n case setCtorString: return setTag;\n case weakMapCtorString: return weakMapTag;\n }\n }\n return result;\n };\n}\n\nmodule.exports = getTag;\n","var Uint8Array = require('./_Uint8Array');\n\n/**\n * Creates a clone of `arrayBuffer`.\n *\n * @private\n * @param {ArrayBuffer} arrayBuffer The array buffer to clone.\n * @returns {ArrayBuffer} Returns the cloned array buffer.\n */\nfunction cloneArrayBuffer(arrayBuffer) {\n var result = new arrayBuffer.constructor(arrayBuffer.byteLength);\n new Uint8Array(result).set(new Uint8Array(arrayBuffer));\n return result;\n}\n\nmodule.exports = cloneArrayBuffer;\n","module.exports = __webpack_public_path__ + \"static/media/star.004c2bbb.png\";","/**\n * Copyright (c) Nicolas Gallagher.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n */\nimport { render } from 'react-dom';\nexport default render;","module.exports=/[!-#%-\\*,-\\/:;\\?@\\[-\\]_\\{\\}\\xA1\\xA7\\xAB\\xB6\\xB7\\xBB\\xBF\\u037E\\u0387\\u055A-\\u055F\\u0589\\u058A\\u05BE\\u05C0\\u05C3\\u05C6\\u05F3\\u05F4\\u0609\\u060A\\u060C\\u060D\\u061B\\u061E\\u061F\\u066A-\\u066D\\u06D4\\u0700-\\u070D\\u07F7-\\u07F9\\u0830-\\u083E\\u085E\\u0964\\u0965\\u0970\\u09FD\\u0A76\\u0AF0\\u0C84\\u0DF4\\u0E4F\\u0E5A\\u0E5B\\u0F04-\\u0F12\\u0F14\\u0F3A-\\u0F3D\\u0F85\\u0FD0-\\u0FD4\\u0FD9\\u0FDA\\u104A-\\u104F\\u10FB\\u1360-\\u1368\\u1400\\u166D\\u166E\\u169B\\u169C\\u16EB-\\u16ED\\u1735\\u1736\\u17D4-\\u17D6\\u17D8-\\u17DA\\u1800-\\u180A\\u1944\\u1945\\u1A1E\\u1A1F\\u1AA0-\\u1AA6\\u1AA8-\\u1AAD\\u1B5A-\\u1B60\\u1BFC-\\u1BFF\\u1C3B-\\u1C3F\\u1C7E\\u1C7F\\u1CC0-\\u1CC7\\u1CD3\\u2010-\\u2027\\u2030-\\u2043\\u2045-\\u2051\\u2053-\\u205E\\u207D\\u207E\\u208D\\u208E\\u2308-\\u230B\\u2329\\u232A\\u2768-\\u2775\\u27C5\\u27C6\\u27E6-\\u27EF\\u2983-\\u2998\\u29D8-\\u29DB\\u29FC\\u29FD\\u2CF9-\\u2CFC\\u2CFE\\u2CFF\\u2D70\\u2E00-\\u2E2E\\u2E30-\\u2E4E\\u3001-\\u3003\\u3008-\\u3011\\u3014-\\u301F\\u3030\\u303D\\u30A0\\u30FB\\uA4FE\\uA4FF\\uA60D-\\uA60F\\uA673\\uA67E\\uA6F2-\\uA6F7\\uA874-\\uA877\\uA8CE\\uA8CF\\uA8F8-\\uA8FA\\uA8FC\\uA92E\\uA92F\\uA95F\\uA9C1-\\uA9CD\\uA9DE\\uA9DF\\uAA5C-\\uAA5F\\uAADE\\uAADF\\uAAF0\\uAAF1\\uABEB\\uFD3E\\uFD3F\\uFE10-\\uFE19\\uFE30-\\uFE52\\uFE54-\\uFE61\\uFE63\\uFE68\\uFE6A\\uFE6B\\uFF01-\\uFF03\\uFF05-\\uFF0A\\uFF0C-\\uFF0F\\uFF1A\\uFF1B\\uFF1F\\uFF20\\uFF3B-\\uFF3D\\uFF3F\\uFF5B\\uFF5D\\uFF5F-\\uFF65]|\\uD800[\\uDD00-\\uDD02\\uDF9F\\uDFD0]|\\uD801\\uDD6F|\\uD802[\\uDC57\\uDD1F\\uDD3F\\uDE50-\\uDE58\\uDE7F\\uDEF0-\\uDEF6\\uDF39-\\uDF3F\\uDF99-\\uDF9C]|\\uD803[\\uDF55-\\uDF59]|\\uD804[\\uDC47-\\uDC4D\\uDCBB\\uDCBC\\uDCBE-\\uDCC1\\uDD40-\\uDD43\\uDD74\\uDD75\\uDDC5-\\uDDC8\\uDDCD\\uDDDB\\uDDDD-\\uDDDF\\uDE38-\\uDE3D\\uDEA9]|\\uD805[\\uDC4B-\\uDC4F\\uDC5B\\uDC5D\\uDCC6\\uDDC1-\\uDDD7\\uDE41-\\uDE43\\uDE60-\\uDE6C\\uDF3C-\\uDF3E]|\\uD806[\\uDC3B\\uDE3F-\\uDE46\\uDE9A-\\uDE9C\\uDE9E-\\uDEA2]|\\uD807[\\uDC41-\\uDC45\\uDC70\\uDC71\\uDEF7\\uDEF8]|\\uD809[\\uDC70-\\uDC74]|\\uD81A[\\uDE6E\\uDE6F\\uDEF5\\uDF37-\\uDF3B\\uDF44]|\\uD81B[\\uDE97-\\uDE9A]|\\uD82F\\uDC9F|\\uD836[\\uDE87-\\uDE8B]|\\uD83A[\\uDD5E\\uDD5F]/","/**\n * class Ruler\n *\n * Helper class, used by [[MarkdownIt#core]], [[MarkdownIt#block]] and\n * [[MarkdownIt#inline]] to manage sequences of functions (rules):\n *\n * - keep rules in defined order\n * - assign the name to each rule\n * - enable/disable rules\n * - add/replace rules\n * - allow assign rules to additional named chains (in the same)\n * - cacheing lists of active rules\n *\n * You will not need use this class directly until write plugins. For simple\n * rules control use [[MarkdownIt.disable]], [[MarkdownIt.enable]] and\n * [[MarkdownIt.use]].\n **/\n'use strict';\n\n\n/**\n * new Ruler()\n **/\nfunction Ruler() {\n // List of added rules. Each element is:\n //\n // {\n // name: XXX,\n // enabled: Boolean,\n // fn: Function(),\n // alt: [ name2, name3 ]\n // }\n //\n this.__rules__ = [];\n\n // Cached rule chains.\n //\n // First level - chain name, '' for default.\n // Second level - diginal anchor for fast filtering by charcodes.\n //\n this.__cache__ = null;\n}\n\n////////////////////////////////////////////////////////////////////////////////\n// Helper methods, should not be used directly\n\n\n// Find rule index by name\n//\nRuler.prototype.__find__ = function (name) {\n for (var i = 0; i < this.__rules__.length; i++) {\n if (this.__rules__[i].name === name) {\n return i;\n }\n }\n return -1;\n};\n\n\n// Build rules lookup cache\n//\nRuler.prototype.__compile__ = function () {\n var self = this;\n var chains = [ '' ];\n\n // collect unique names\n self.__rules__.forEach(function (rule) {\n if (!rule.enabled) { return; }\n\n rule.alt.forEach(function (altName) {\n if (chains.indexOf(altName) < 0) {\n chains.push(altName);\n }\n });\n });\n\n self.__cache__ = {};\n\n chains.forEach(function (chain) {\n self.__cache__[chain] = [];\n self.__rules__.forEach(function (rule) {\n if (!rule.enabled) { return; }\n\n if (chain && rule.alt.indexOf(chain) < 0) { return; }\n\n self.__cache__[chain].push(rule.fn);\n });\n });\n};\n\n\n/**\n * Ruler.at(name, fn [, options])\n * - name (String): rule name to replace.\n * - fn (Function): new rule function.\n * - options (Object): new rule options (not mandatory).\n *\n * Replace rule by name with new function & options. Throws error if name not\n * found.\n *\n * ##### Options:\n *\n * - __alt__ - array with names of \"alternate\" chains.\n *\n * ##### Example\n *\n * Replace existing typographer replacement rule with new one:\n *\n * ```javascript\n * var md = require('markdown-it')();\n *\n * md.core.ruler.at('replacements', function replace(state) {\n * //...\n * });\n * ```\n **/\nRuler.prototype.at = function (name, fn, options) {\n var index = this.__find__(name);\n var opt = options || {};\n\n if (index === -1) { throw new Error('Parser rule not found: ' + name); }\n\n this.__rules__[index].fn = fn;\n this.__rules__[index].alt = opt.alt || [];\n this.__cache__ = null;\n};\n\n\n/**\n * Ruler.before(beforeName, ruleName, fn [, options])\n * - beforeName (String): new rule will be added before this one.\n * - ruleName (String): name of added rule.\n * - fn (Function): rule function.\n * - options (Object): rule options (not mandatory).\n *\n * Add new rule to chain before one with given name. See also\n * [[Ruler.after]], [[Ruler.push]].\n *\n * ##### Options:\n *\n * - __alt__ - array with names of \"alternate\" chains.\n *\n * ##### Example\n *\n * ```javascript\n * var md = require('markdown-it')();\n *\n * md.block.ruler.before('paragraph', 'my_rule', function replace(state) {\n * //...\n * });\n * ```\n **/\nRuler.prototype.before = function (beforeName, ruleName, fn, options) {\n var index = this.__find__(beforeName);\n var opt = options || {};\n\n if (index === -1) { throw new Error('Parser rule not found: ' + beforeName); }\n\n this.__rules__.splice(index, 0, {\n name: ruleName,\n enabled: true,\n fn: fn,\n alt: opt.alt || []\n });\n\n this.__cache__ = null;\n};\n\n\n/**\n * Ruler.after(afterName, ruleName, fn [, options])\n * - afterName (String): new rule will be added after this one.\n * - ruleName (String): name of added rule.\n * - fn (Function): rule function.\n * - options (Object): rule options (not mandatory).\n *\n * Add new rule to chain after one with given name. See also\n * [[Ruler.before]], [[Ruler.push]].\n *\n * ##### Options:\n *\n * - __alt__ - array with names of \"alternate\" chains.\n *\n * ##### Example\n *\n * ```javascript\n * var md = require('markdown-it')();\n *\n * md.inline.ruler.after('text', 'my_rule', function replace(state) {\n * //...\n * });\n * ```\n **/\nRuler.prototype.after = function (afterName, ruleName, fn, options) {\n var index = this.__find__(afterName);\n var opt = options || {};\n\n if (index === -1) { throw new Error('Parser rule not found: ' + afterName); }\n\n this.__rules__.splice(index + 1, 0, {\n name: ruleName,\n enabled: true,\n fn: fn,\n alt: opt.alt || []\n });\n\n this.__cache__ = null;\n};\n\n/**\n * Ruler.push(ruleName, fn [, options])\n * - ruleName (String): name of added rule.\n * - fn (Function): rule function.\n * - options (Object): rule options (not mandatory).\n *\n * Push new rule to the end of chain. See also\n * [[Ruler.before]], [[Ruler.after]].\n *\n * ##### Options:\n *\n * - __alt__ - array with names of \"alternate\" chains.\n *\n * ##### Example\n *\n * ```javascript\n * var md = require('markdown-it')();\n *\n * md.core.ruler.push('my_rule', function replace(state) {\n * //...\n * });\n * ```\n **/\nRuler.prototype.push = function (ruleName, fn, options) {\n var opt = options || {};\n\n this.__rules__.push({\n name: ruleName,\n enabled: true,\n fn: fn,\n alt: opt.alt || []\n });\n\n this.__cache__ = null;\n};\n\n\n/**\n * Ruler.enable(list [, ignoreInvalid]) -> Array\n * - list (String|Array): list of rule names to enable.\n * - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.\n *\n * Enable rules with given names. If any rule name not found - throw Error.\n * Errors can be disabled by second param.\n *\n * Returns list of found rule names (if no exception happened).\n *\n * See also [[Ruler.disable]], [[Ruler.enableOnly]].\n **/\nRuler.prototype.enable = function (list, ignoreInvalid) {\n if (!Array.isArray(list)) { list = [ list ]; }\n\n var result = [];\n\n // Search by name and enable\n list.forEach(function (name) {\n var idx = this.__find__(name);\n\n if (idx < 0) {\n if (ignoreInvalid) { return; }\n throw new Error('Rules manager: invalid rule name ' + name);\n }\n this.__rules__[idx].enabled = true;\n result.push(name);\n }, this);\n\n this.__cache__ = null;\n return result;\n};\n\n\n/**\n * Ruler.enableOnly(list [, ignoreInvalid])\n * - list (String|Array): list of rule names to enable (whitelist).\n * - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.\n *\n * Enable rules with given names, and disable everything else. If any rule name\n * not found - throw Error. Errors can be disabled by second param.\n *\n * See also [[Ruler.disable]], [[Ruler.enable]].\n **/\nRuler.prototype.enableOnly = function (list, ignoreInvalid) {\n if (!Array.isArray(list)) { list = [ list ]; }\n\n this.__rules__.forEach(function (rule) { rule.enabled = false; });\n\n this.enable(list, ignoreInvalid);\n};\n\n\n/**\n * Ruler.disable(list [, ignoreInvalid]) -> Array\n * - list (String|Array): list of rule names to disable.\n * - ignoreInvalid (Boolean): set `true` to ignore errors when rule not found.\n *\n * Disable rules with given names. If any rule name not found - throw Error.\n * Errors can be disabled by second param.\n *\n * Returns list of found rule names (if no exception happened).\n *\n * See also [[Ruler.enable]], [[Ruler.enableOnly]].\n **/\nRuler.prototype.disable = function (list, ignoreInvalid) {\n if (!Array.isArray(list)) { list = [ list ]; }\n\n var result = [];\n\n // Search by name and disable\n list.forEach(function (name) {\n var idx = this.__find__(name);\n\n if (idx < 0) {\n if (ignoreInvalid) { return; }\n throw new Error('Rules manager: invalid rule name ' + name);\n }\n this.__rules__[idx].enabled = false;\n result.push(name);\n }, this);\n\n this.__cache__ = null;\n return result;\n};\n\n\n/**\n * Ruler.getRules(chainName) -> Array\n *\n * Return array of active functions (rules) for given chain name. It analyzes\n * rules configuration, compiles caches if not exists and returns result.\n *\n * Default chain name is `''` (empty string). It can't be skipped. That's\n * done intentionally, to keep signature monomorphic for high speed.\n **/\nRuler.prototype.getRules = function (chainName) {\n if (this.__cache__ === null) {\n this.__compile__();\n }\n\n // Chain can be empty, if rules disabled. But we still have to return Array.\n return this.__cache__[chainName] || [];\n};\n\nmodule.exports = Ruler;\n","// Token class\n\n'use strict';\n\n\n/**\n * class Token\n **/\n\n/**\n * new Token(type, tag, nesting)\n *\n * Create new token and fill passed properties.\n **/\nfunction Token(type, tag, nesting) {\n /**\n * Token#type -> String\n *\n * Type of the token (string, e.g. \"paragraph_open\")\n **/\n this.type = type;\n\n /**\n * Token#tag -> String\n *\n * html tag name, e.g. \"p\"\n **/\n this.tag = tag;\n\n /**\n * Token#attrs -> Array\n *\n * Html attributes. Format: `[ [ name1, value1 ], [ name2, value2 ] ]`\n **/\n this.attrs = null;\n\n /**\n * Token#map -> Array\n *\n * Source map info. Format: `[ line_begin, line_end ]`\n **/\n this.map = null;\n\n /**\n * Token#nesting -> Number\n *\n * Level change (number in {-1, 0, 1} set), where:\n *\n * - `1` means the tag is opening\n * - `0` means the tag is self-closing\n * - `-1` means the tag is closing\n **/\n this.nesting = nesting;\n\n /**\n * Token#level -> Number\n *\n * nesting level, the same as `state.level`\n **/\n this.level = 0;\n\n /**\n * Token#children -> Array\n *\n * An array of child nodes (inline and img tokens)\n **/\n this.children = null;\n\n /**\n * Token#content -> String\n *\n * In a case of self-closing tag (code, html, fence, etc.),\n * it has contents of this tag.\n **/\n this.content = '';\n\n /**\n * Token#markup -> String\n *\n * '*' or '_' for emphasis, fence string for fence, etc.\n **/\n this.markup = '';\n\n /**\n * Token#info -> String\n *\n * fence infostring\n **/\n this.info = '';\n\n /**\n * Token#meta -> Object\n *\n * A place for plugins to store an arbitrary data\n **/\n this.meta = null;\n\n /**\n * Token#block -> Boolean\n *\n * True for block-level tokens, false for inline tokens.\n * Used in renderer to calculate line breaks\n **/\n this.block = false;\n\n /**\n * Token#hidden -> Boolean\n *\n * If it's true, ignore this element when rendering. Used for tight lists\n * to hide paragraphs.\n **/\n this.hidden = false;\n}\n\n\n/**\n * Token.attrIndex(name) -> Number\n *\n * Search attribute index by name.\n **/\nToken.prototype.attrIndex = function attrIndex(name) {\n var attrs, i, len;\n\n if (!this.attrs) { return -1; }\n\n attrs = this.attrs;\n\n for (i = 0, len = attrs.length; i < len; i++) {\n if (attrs[i][0] === name) { return i; }\n }\n return -1;\n};\n\n\n/**\n * Token.attrPush(attrData)\n *\n * Add `[ name, value ]` attribute to list. Init attrs if necessary\n **/\nToken.prototype.attrPush = function attrPush(attrData) {\n if (this.attrs) {\n this.attrs.push(attrData);\n } else {\n this.attrs = [ attrData ];\n }\n};\n\n\n/**\n * Token.attrSet(name, value)\n *\n * Set `name` attribute to `value`. Override old value if exists.\n **/\nToken.prototype.attrSet = function attrSet(name, value) {\n var idx = this.attrIndex(name),\n attrData = [ name, value ];\n\n if (idx < 0) {\n this.attrPush(attrData);\n } else {\n this.attrs[idx] = attrData;\n }\n};\n\n\n/**\n * Token.attrGet(name)\n *\n * Get the value of attribute `name`, or null if it does not exist.\n **/\nToken.prototype.attrGet = function attrGet(name) {\n var idx = this.attrIndex(name), value = null;\n if (idx >= 0) {\n value = this.attrs[idx][1];\n }\n return value;\n};\n\n\n/**\n * Token.attrJoin(name, value)\n *\n * Join value to existing attribute via space. Or create new attribute if not\n * exists. Useful to operate with token classes.\n **/\nToken.prototype.attrJoin = function attrJoin(name, value) {\n var idx = this.attrIndex(name);\n\n if (idx < 0) {\n this.attrPush([ name, value ]);\n } else {\n this.attrs[idx][1] = this.attrs[idx][1] + ' ' + value;\n }\n};\n\n\nmodule.exports = Token;\n","function _defineProperty(obj, key, value) {\n if (key in obj) {\n Object.defineProperty(obj, key, {\n value: value,\n enumerable: true,\n configurable: true,\n writable: true\n });\n } else {\n obj[key] = value;\n }\n\n return obj;\n}\n\nmodule.exports = _defineProperty;","import React from 'react';\nimport invariant from '../utils/invariant';\n\nfunction createNavigator(NavigatorView, router, navigationConfig) {\n class Navigator extends React.Component {\n static router = router;\n static navigationOptions = navigationConfig.navigationOptions;\n\n state = {\n descriptors: {},\n screenProps: this.props.screenProps,\n };\n\n static getDerivedStateFromProps(nextProps, prevState) {\n const prevDescriptors = prevState.descriptors;\n const { navigation, screenProps } = nextProps;\n invariant(\n navigation != null,\n 'The navigation prop is missing for this navigator. In react-navigation 3 you must set up your app container directly. More info: https://reactnavigation.org/docs/en/app-containers.html'\n );\n const { state } = navigation;\n const { routes } = state;\n if (typeof routes === 'undefined') {\n throw new TypeError(\n 'No \"routes\" found in navigation state. Did you try to pass the navigation prop of a React component to a Navigator child? See https://reactnavigation.org/docs/en/custom-navigators.html#navigator-navigation-prop'\n );\n }\n\n const descriptors = {};\n\n routes.forEach(route => {\n if (\n prevDescriptors &&\n prevDescriptors[route.key] &&\n route === prevDescriptors[route.key].state &&\n screenProps === prevState.screenProps\n ) {\n descriptors[route.key] = prevDescriptors[route.key];\n return;\n }\n const getComponent = router.getComponentForRouteName.bind(\n null,\n route.routeName\n );\n const childNavigation = navigation.getChildNavigation(route.key);\n const options = router.getScreenOptions(childNavigation, screenProps);\n descriptors[route.key] = {\n key: route.key,\n getComponent,\n options,\n state: route,\n navigation: childNavigation,\n };\n });\n\n return { descriptors, screenProps };\n }\n\n render() {\n return (\n \n );\n }\n }\n\n return Navigator;\n}\n\nexport default createNavigator;\n","export const JUMP_TO = 'Navigation/JUMP_TO';\n\nexport const jumpTo = (payload: {\n routeName: string;\n key: string;\n params?: object;\n}) => ({\n type: JUMP_TO,\n preserveFocus: true,\n ...payload,\n});\n","import React from 'react';\nimport SceneView from '../SceneView';\n\nexport default class SwitchView extends React.Component {\n render() {\n const { state } = this.props.navigation;\n const activeKey = state.routes[state.index].key;\n const descriptor = this.props.descriptors[activeKey];\n const ChildComponent = descriptor.getComponent();\n\n return (\n \n );\n }\n}\n","import React from 'react';\nimport NavigationContext from './NavigationContext';\n\nexport default class SceneView extends React.PureComponent {\n render() {\n const { screenProps, component: Component, navigation } = this.props;\n return (\n \n \n \n );\n }\n}\n","/**\n * Copyright (c) Nicolas Gallagher.\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n */\nimport EdgeInsetsPropType from '../EdgeInsetsPropType';\nimport StyleSheetPropType from '../../modules/StyleSheetPropType';\nimport ViewStylePropTypes from './ViewStylePropTypes';\nimport { any, array, arrayOf, bool, func, object, oneOf, oneOfType, string } from 'prop-types';\nvar stylePropType = StyleSheetPropType(ViewStylePropTypes);\nvar ViewPropTypes = {\n accessibilityComponentType: string,\n accessibilityLabel: string,\n accessibilityLiveRegion: oneOf(['assertive', 'none', 'polite']),\n accessibilityRole: string,\n accessibilityStates: arrayOf(oneOf(['disabled', 'selected',\n /* web-only */\n 'busy', 'checked', 'expanded', 'grabbed', 'invalid', 'pressed'])),\n accessibilityTraits: oneOfType([array, string]),\n accessible: bool,\n children: any,\n hitSlop: EdgeInsetsPropType,\n importantForAccessibility: oneOf(['auto', 'no', 'no-hide-descendants', 'yes']),\n nativeID: string,\n onBlur: func,\n onClick: func,\n onClickCapture: func,\n onFocus: func,\n onLayout: func,\n onMoveShouldSetResponder: func,\n onMoveShouldSetResponderCapture: func,\n onResponderGrant: func,\n onResponderMove: func,\n onResponderReject: func,\n onResponderRelease: func,\n onResponderTerminate: func,\n onResponderTerminationRequest: func,\n onStartShouldSetResponder: func,\n onStartShouldSetResponderCapture: func,\n onTouchCancel: func,\n onTouchCancelCapture: func,\n onTouchEnd: func,\n onTouchEndCapture: func,\n onTouchMove: func,\n onTouchMoveCapture: func,\n onTouchStart: func,\n onTouchStartCapture: func,\n pointerEvents: oneOf(['auto', 'box-none', 'box-only', 'none']),\n style: stylePropType,\n testID: string,\n // web extensions\n onContextMenu: func,\n itemID: string,\n itemRef: string,\n itemProp: string,\n itemScope: string,\n itemType: string,\n // compatibility with React Native\n accessibilityViewIsModal: bool,\n collapsable: bool,\n needsOffscreenAlphaCompositing: bool,\n onAccessibilityTap: func,\n onMagicTap: func,\n removeClippedSubviews: bool,\n renderToHardwareTextureAndroid: bool,\n shouldRasterizeIOS: bool,\n tvParallaxProperties: object\n};\nexport default ViewPropTypes;","/* @flow */\n\nimport * as React from 'react';\nimport { Animated, StyleSheet } from 'react-native';\nimport { TabBar } from 'react-native-tab-view';\nimport CrossFadeIcon from './CrossFadeIcon';\n\nexport type TabBarOptions = {\n activeTintColor?: string,\n inactiveTintColor?: string,\n showLabel?: boolean,\n showIcon?: boolean,\n upperCaseLabel?: boolean,\n labelStyle?: any,\n iconStyle?: any,\n allowFontScaling?: boolean,\n};\n\ntype Props = TabBarOptions & {\n position: Animated.Value,\n offsetX: Animated.Value,\n panX: Animated.Value,\n layout: any,\n navigation: any,\n renderIcon: (props: {\n route: any,\n focused: boolean,\n tintColor: string,\n }) => React.Node,\n getLabelText: (props: { route: any }) => any,\n getAccessibilityLabel: (props: { route: any }) => string,\n getTestID: (props: { route: any }) => string,\n useNativeDriver?: boolean,\n jumpTo: (key: string) => any,\n};\n\nexport default class TabBarTop extends React.PureComponent {\n static defaultProps = {\n activeTintColor: '#fff',\n inactiveTintColor: '#fff',\n showIcon: false,\n showLabel: true,\n upperCaseLabel: true,\n allowFontScaling: true,\n };\n\n _renderLabel = ({ route }) => {\n const {\n position,\n navigation,\n activeTintColor,\n inactiveTintColor,\n showLabel,\n upperCaseLabel,\n labelStyle,\n allowFontScaling,\n } = this.props;\n\n if (showLabel === false) {\n return null;\n }\n\n const { routes } = navigation.state;\n const index = routes.indexOf(route);\n const focused = index === navigation.state.index;\n\n // Prepend '-1', so there are always at least 2 items in inputRange\n const inputRange = [-1, ...routes.map((x, i) => i)];\n const outputRange = inputRange.map(inputIndex =>\n inputIndex === index ? activeTintColor : inactiveTintColor\n );\n const color = position.interpolate({\n inputRange,\n outputRange: outputRange,\n });\n\n const tintColor = focused ? activeTintColor : inactiveTintColor;\n const label = this.props.getLabelText({ route });\n\n if (typeof label === 'string') {\n return (\n \n {upperCaseLabel ? label.toUpperCase() : label}\n \n );\n }\n if (typeof label === 'function') {\n return label({ focused, tintColor });\n }\n\n return label;\n };\n\n _renderIcon = ({ route }) => {\n const {\n position,\n navigation,\n activeTintColor,\n inactiveTintColor,\n renderIcon,\n showIcon,\n iconStyle,\n } = this.props;\n\n if (showIcon === false) {\n return null;\n }\n\n const index = navigation.state.routes.indexOf(route);\n\n // Prepend '-1', so there are always at least 2 items in inputRange\n const inputRange = [-1, ...navigation.state.routes.map((x, i) => i)];\n const activeOpacity = position.interpolate({\n inputRange,\n outputRange: inputRange.map(i => (i === index ? 1 : 0)),\n });\n const inactiveOpacity = position.interpolate({\n inputRange,\n outputRange: inputRange.map(i => (i === index ? 0 : 1)),\n });\n\n return (\n \n );\n };\n\n render() {\n /* eslint-disable no-unused-vars */\n const { navigation, renderIcon, getLabelText, ...rest } = this.props;\n\n return (\n /* $FlowFixMe */\n \n );\n }\n}\n\nconst styles = StyleSheet.create({\n icon: {\n height: 24,\n width: 24,\n },\n label: {\n textAlign: 'center',\n fontSize: 13,\n margin: 8,\n backgroundColor: 'transparent',\n },\n});\n","import { SwitchRouter, NavigationActions } from '@react-navigation/core';\nimport DrawerActions from './DrawerActions';\n\nfunction withDefaultValue(obj, key, defaultValue) {\n if (obj.hasOwnProperty(key) && typeof obj[key] !== 'undefined') {\n return obj;\n }\n\n obj[key] = defaultValue;\n return obj;\n}\n\nconst getActiveRouteKey = route => {\n if (route.routes && route.routes[route.index]) {\n return getActiveRouteKey(route.routes[route.index]);\n }\n return route.key;\n};\n\nexport default ((routeConfigs, config = {}) => {\n config = { ...config };\n config = withDefaultValue(config, 'resetOnBlur', config.unmountInactiveRoutes ? true : !!config.resetOnBlur);\n config = withDefaultValue(config, 'backBehavior', 'initialRoute');\n\n const switchRouter = SwitchRouter(routeConfigs, config);\n\n let __id = -1;\n const genId = () => {\n __id++;\n return __id;\n };\n\n return {\n ...switchRouter,\n\n getActionCreators(route, navStateKey) {\n return {\n openDrawer: () => DrawerActions.openDrawer({ key: navStateKey }),\n closeDrawer: () => DrawerActions.closeDrawer({ key: navStateKey }),\n toggleDrawer: () => DrawerActions.toggleDrawer({ key: navStateKey }),\n ...switchRouter.getActionCreators(route, navStateKey)\n };\n },\n\n getStateForAction(action, state) {\n // Set up the initial state if needed\n if (!state) {\n return {\n ...switchRouter.getStateForAction(action, undefined),\n isDrawerOpen: false,\n isDrawerIdle: true,\n drawerMovementDirection: null,\n openId: genId(),\n closeId: genId(),\n toggleId: genId()\n };\n }\n\n const isRouterTargeted = action.key == null || action.key === state.key;\n\n if (isRouterTargeted) {\n // Only handle actions that are meant for this drawer, as specified by action.key.\n\n if (action.type === DrawerActions.DRAWER_CLOSED) {\n return {\n ...state,\n isDrawerOpen: false,\n isDrawerIdle: true,\n drawerMovementDirection: null\n };\n }\n\n if (action.type === DrawerActions.DRAWER_OPENED) {\n return {\n ...state,\n isDrawerOpen: true,\n isDrawerIdle: true,\n drawerMovementDirection: null\n };\n }\n\n if (action.type === DrawerActions.CLOSE_DRAWER) {\n return {\n ...state,\n closeId: genId()\n };\n }\n\n if (action.type === DrawerActions.MARK_DRAWER_SETTLING) {\n return {\n ...state,\n isDrawerIdle: false,\n drawerMovementDirection: action.willShow ? 'opening' : 'closing'\n };\n }\n\n if (action.type === DrawerActions.MARK_DRAWER_ACTIVE) {\n return {\n ...state,\n isDrawerIdle: false,\n drawerMovementDirection: null\n };\n }\n\n if (action.type === DrawerActions.MARK_DRAWER_IDLE) {\n return {\n ...state,\n isDrawerIdle: true,\n drawerMovementDirection: null\n };\n }\n\n if (action.type === NavigationActions.BACK && (state.isDrawerOpen || !state.isDrawerIdle) && state.drawerMovementDirection !== 'closing') {\n return {\n ...state,\n closeId: genId()\n };\n }\n\n if (action.type === DrawerActions.OPEN_DRAWER) {\n return {\n ...state,\n openId: genId()\n };\n }\n\n if (action.type === DrawerActions.TOGGLE_DRAWER) {\n return {\n ...state,\n toggleId: genId()\n };\n }\n }\n\n // Fall back on switch router for screen switching logic, and handling of child routers\n const switchedState = switchRouter.getStateForAction(action, state);\n\n if (switchedState === null) {\n // The switch router or a child router is attempting to swallow this action. We return null to allow this.\n return null;\n }\n\n // Has the switch router changed the state?\n if (switchedState !== state) {\n // If any navigation has happened, and the drawer is maybe open, make sure to close it\n if (getActiveRouteKey(switchedState) !== getActiveRouteKey(state) && (state.isDrawerOpen || state.drawerMovementDirection !== 'closing')) {\n return {\n ...switchedState,\n closeId: genId()\n };\n }\n\n // At this point, return the state as defined by the switch router.\n // The active route key hasn't changed, so this most likely means that a child router has returned\n // a new state like a param change, but the same key is still active and the drawer will remain open\n return switchedState;\n }\n\n return state;\n }\n };\n});","module.exports = __webpack_public_path__ + \"./fonts/MaterialIcons.ttf\";","module.exports = __webpack_public_path__ + \"./fonts/MaterialCommunityIcons.ttf\";","module.exports = __webpack_public_path__ + \"./fonts/Ionicons.ttf\";","module.exports = __webpack_public_path__ + \"./fonts/Entypo.ttf\";","module.exports = __webpack_public_path__ + \"./fonts/FontAwesome.ttf\";","module.exports = __webpack_public_path__ + \"./fonts/SimpleLineIcons.ttf\";","/**\n * TouchableItem renders a touchable that looks native on both iOS and Android.\n *\n * It provides an abstraction on top of TouchableNativeFeedback and\n * TouchableOpacity.\n *\n * On iOS you can pass the props of TouchableOpacity, on Android pass the props\n * of TouchableNativeFeedback.\n */\nimport React from 'react';\nimport { Platform, TouchableNativeFeedback, TouchableOpacity, View } from 'react-native';\n\nconst ANDROID_VERSION_LOLLIPOP = 21;\n\nexport default class TouchableItem extends React.Component {\n static defaultProps = {\n borderless: false,\n pressColor: 'rgba(0, 0, 0, .32)'\n };\n\n render() {\n /*\n * TouchableNativeFeedback.Ripple causes a crash on old Android versions,\n * therefore only enable it on Android Lollipop and above.\n *\n * All touchables on Android should have the ripple effect according to\n * platform design guidelines.\n * We need to pass the background prop to specify a borderless ripple effect.\n */\n if (Platform.OS === 'android' && Platform.Version >= ANDROID_VERSION_LOLLIPOP) {\n const { style, ...rest } = this.props;\n return \n {React.Children.only(this.props.children)}\n ;\n }\n\n return {this.props.children};\n }\n}","import React from 'react';\nimport { View, Text, StyleSheet } from 'react-native';\nimport { SafeAreaView } from '@react-navigation/native';\nimport TouchableItem from './TouchableItem';\n\n/**\n * Component that renders the navigation list in the drawer.\n */\nconst DrawerNavigatorItems = ({\n items,\n activeItemKey,\n activeTintColor,\n activeBackgroundColor,\n inactiveTintColor,\n inactiveBackgroundColor,\n getLabel,\n renderIcon,\n onItemPress,\n itemsContainerStyle,\n itemStyle,\n labelStyle,\n activeLabelStyle,\n inactiveLabelStyle,\n iconContainerStyle,\n drawerPosition\n}) => \n {items.map((route, index) => {\n const focused = activeItemKey === route.key;\n const color = focused ? activeTintColor : inactiveTintColor;\n const backgroundColor = focused ? activeBackgroundColor : inactiveBackgroundColor;\n const scene = { route, index, focused, tintColor: color };\n const icon = renderIcon(scene);\n const label = getLabel(scene);\n const accessibilityLabel = typeof label === 'string' ? label : undefined;\n const extraLabelStyle = focused ? activeLabelStyle : inactiveLabelStyle;\n return {\n onItemPress({ route, focused });\n }} delayPressIn={0}>\n \n {icon ? \n {icon}\n : null}\n {typeof label === 'string' ? \n {label}\n : label}\n \n ;\n })}\n ;\n\n/* Material design specs - https://material.io/guidelines/patterns/navigation-drawer.html#navigation-drawer-specs */\nDrawerNavigatorItems.defaultProps = {\n activeTintColor: '#2196f3',\n activeBackgroundColor: 'rgba(0, 0, 0, .04)',\n inactiveTintColor: 'rgba(0, 0, 0, .87)',\n inactiveBackgroundColor: 'transparent'\n};\n\nconst styles = StyleSheet.create({\n container: {\n paddingVertical: 4\n },\n item: {\n flexDirection: 'row',\n alignItems: 'center'\n },\n icon: {\n marginHorizontal: 16,\n width: 24,\n alignItems: 'center'\n },\n inactiveIcon: {\n /*\n * Icons have 0.54 opacity according to guidelines\n * 100/87 * 54 ~= 62\n */\n opacity: 0.62\n },\n label: {\n margin: 16,\n fontWeight: 'bold'\n }\n});\n\nexport default DrawerNavigatorItems;","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n * All rights reserved.\n *\n * This source code is licensed under the BSD-style license found in the\n * LICENSE file in the root directory of this source tree. An additional grant\n * of patent rights can be found in the PATENTS file in the same directory.\n */\n\n'use strict';\n\n/**\n * Use invariant() to assert state which your program assumes to be true.\n *\n * Provide sprintf-style format (only %s is supported) and arguments\n * to provide information about what broke and what you were\n * expecting.\n *\n * The invariant message will be stripped in production, but the invariant\n * will remain to ensure logic does not differ in production.\n */\n\nexport default function invariant(condition, format, a, b, c, d, e, f) {\n if (format === undefined) {\n throw new Error('invariant requires an error message argument');\n }\n\n if (!condition) {\n var error;\n if (format === undefined) {\n error = new Error('Minified exception occurred; use the non-minified dev environment for the full error message and additional helpful warnings.');\n } else {\n var args = [a, b, c, d, e, f];\n var argIndex = 0;\n error = new Error(format.replace(/%s/g, () => args[argIndex++]));\n error.name = 'Invariant Violation';\n }\n\n error.framesToPop = 1; // we don't care about invariant's own frame\n throw error;\n }\n}","import React from 'react';\nimport { StyleSheet, View } from 'react-native';\n\nimport { NavigationActions } from '@react-navigation/core';\nimport invariant from '../utils/invariant';\n\n/**\n * Component that renders the sidebar screen of the drawer.\n */\n\nclass DrawerSidebar extends React.PureComponent {\n _getScreenOptions = routeKey => {\n const descriptor = this.props.descriptors[routeKey];\n invariant(descriptor.options, 'Cannot access screen descriptor options from drawer sidebar');\n return descriptor.options;\n };\n\n _getLabel = ({ focused, tintColor, route }) => {\n const { drawerLabel, title } = this._getScreenOptions(route.key);\n if (drawerLabel) {\n return typeof drawerLabel === 'function' ? drawerLabel({ tintColor, focused }) : drawerLabel;\n }\n\n if (typeof title === 'string') {\n return title;\n }\n\n return route.routeName;\n };\n\n _renderIcon = ({ focused, tintColor, route }) => {\n const { drawerIcon } = this._getScreenOptions(route.key);\n if (drawerIcon) {\n return typeof drawerIcon === 'function' ? drawerIcon({ tintColor, focused }) : drawerIcon;\n }\n return null;\n };\n\n _onItemPress = ({ route, focused }) => {\n if (focused) {\n this.props.navigation.closeDrawer();\n } else {\n this.props.navigation.dispatch(NavigationActions.navigate({ routeName: route.routeName }));\n }\n };\n\n render() {\n const ContentComponent = this.props.contentComponent;\n if (!ContentComponent) {\n return null;\n }\n const { state } = this.props.navigation;\n invariant(typeof state.index === 'number', 'should be set');\n return \n \n ;\n }\n}\n\nexport default DrawerSidebar;\n\nconst styles = StyleSheet.create({\n container: {\n flex: 1\n }\n});","import * as React from 'react';\nimport { Platform, StyleSheet, View } from 'react-native';\n\nimport { Screen, screensEnabled } from 'react-native-screens';\n\nconst FAR_FAR_AWAY = 3000; // this should be big enough to move the whole view out of its container\n\nexport default class ResourceSavingScene extends React.Component {\n render() {\n if (screensEnabled && screensEnabled()) {\n const { isVisible, ...rest } = this.props;\n return ;\n }\n const { isVisible, children, style, ...rest } = this.props;\n\n return \n \n {children}\n \n ;\n }\n}\n\nconst styles = StyleSheet.create({\n container: {\n flex: 1,\n overflow: 'hidden'\n },\n attached: {\n flex: 1\n },\n detached: {\n flex: 1,\n top: FAR_FAR_AWAY\n }\n});","import React from 'react';\nimport { Dimensions, StyleSheet } from 'react-native';\nimport { SceneView } from '@react-navigation/core';\nimport DrawerLayout from 'react-native-gesture-handler/DrawerLayout';\nimport { ScreenContainer } from 'react-native-screens';\n\nimport DrawerActions from '../routers/DrawerActions';\nimport DrawerSidebar from './DrawerSidebar';\nimport DrawerGestureContext from '../utils/DrawerGestureContext';\nimport ResourceSavingScene from '../views/ResourceSavingScene';\n\n/**\n * Component that renders the drawer.\n */\nexport default class DrawerView extends React.PureComponent {\n static defaultProps = {\n lazy: true\n };\n\n static getDerivedStateFromProps(nextProps, prevState) {\n const { index } = nextProps.navigation.state;\n\n return {\n // Set the current tab to be loaded if it was not loaded before\n loaded: prevState.loaded.includes(index) ? prevState.loaded : [...prevState.loaded, index]\n };\n }\n\n state = {\n loaded: [this.props.navigation.state.index],\n drawerWidth: typeof this.props.navigationConfig.drawerWidth === 'function' ? this.props.navigationConfig.drawerWidth() : this.props.navigationConfig.drawerWidth\n };\n\n componentDidMount() {\n Dimensions.addEventListener('change', this._updateWidth);\n }\n\n componentDidUpdate(prevProps) {\n const {\n openId,\n closeId,\n toggleId,\n isDrawerOpen\n } = this.props.navigation.state;\n const {\n openId: prevOpenId,\n closeId: prevCloseId,\n toggleId: prevToggleId\n } = prevProps.navigation.state;\n\n let prevIds = [prevOpenId, prevCloseId, prevToggleId];\n let changedIds = [openId, closeId, toggleId].filter(id => !prevIds.includes(id)).sort((a, b) => a > b);\n\n changedIds.forEach(id => {\n if (id === openId) {\n this._drawer.openDrawer();\n } else if (id === closeId) {\n this._drawer.closeDrawer();\n } else if (id === toggleId) {\n if (isDrawerOpen) {\n this._drawer.closeDrawer();\n } else {\n this._drawer.openDrawer();\n }\n }\n });\n }\n\n componentWillUnmount() {\n Dimensions.removeEventListener('change', this._updateWidth);\n }\n\n drawerGestureRef = React.createRef();\n\n _handleDrawerStateChange = (newState, willShow) => {\n if (newState === 'Idle') {\n if (!this.props.navigation.state.isDrawerIdle) {\n this.props.navigation.dispatch({\n type: DrawerActions.MARK_DRAWER_IDLE,\n key: this.props.navigation.state.key\n });\n }\n } else if (newState === 'Settling') {\n this.props.navigation.dispatch({\n type: DrawerActions.MARK_DRAWER_SETTLING,\n key: this.props.navigation.state.key,\n willShow\n });\n } else {\n if (this.props.navigation.state.isDrawerIdle) {\n this.props.navigation.dispatch({\n type: DrawerActions.MARK_DRAWER_ACTIVE,\n key: this.props.navigation.state.key\n });\n }\n }\n };\n\n _handleDrawerOpen = () => {\n this.props.navigation.dispatch({\n type: DrawerActions.DRAWER_OPENED,\n key: this.props.navigation.state.key\n });\n };\n\n _handleDrawerClose = () => {\n this.props.navigation.dispatch({\n type: DrawerActions.DRAWER_CLOSED,\n key: this.props.navigation.state.key\n });\n };\n\n _updateWidth = () => {\n const drawerWidth = typeof this.props.navigationConfig.drawerWidth === 'function' ? this.props.navigationConfig.drawerWidth() : this.props.navigationConfig.drawerWidth;\n\n if (this.state.drawerWidth !== drawerWidth) {\n this.setState({ drawerWidth });\n }\n };\n\n _renderNavigationView = drawerOpenProgress => {\n return \n \n ;\n };\n\n _renderContent = () => {\n let { lazy, navigation } = this.props;\n let { loaded } = this.state;\n let { routes } = navigation.state;\n\n if (this.props.navigationConfig.unmountInactiveRoutes) {\n let activeKey = navigation.state.routes[navigation.state.index].key;\n let descriptor = this.props.descriptors[activeKey];\n\n return ;\n } else {\n return \n {routes.map((route, index) => {\n if (lazy && !loaded.includes(index)) {\n // Don't render a screen if we've never navigated to it\n return null;\n }\n\n let isFocused = navigation.state.index === index;\n let descriptor = this.props.descriptors[route.key];\n\n return \n \n ;\n })}\n ;\n }\n };\n\n _setDrawerGestureRef = ref => {\n this.drawerGestureRef.current = ref;\n };\n\n render() {\n const { navigation } = this.props;\n const activeKey = navigation.state.routes[navigation.state.index].key;\n const { drawerLockMode } = this.props.descriptors[activeKey].options;\n\n return {\n this._drawer = c;\n }} onGestureRef={this._setDrawerGestureRef} drawerLockMode={drawerLockMode || this.props.screenProps && this.props.screenProps.drawerLockMode || this.props.navigationConfig.drawerLockMode} drawerBackgroundColor={this.props.navigationConfig.drawerBackgroundColor} keyboardDismissMode={this.props.navigationConfig.keyboardDismissMode} drawerWidth={this.state.drawerWidth} onDrawerOpen={this._handleDrawerOpen} onDrawerClose={this._handleDrawerClose} onDrawerStateChanged={this._handleDrawerStateChange} useNativeAnimations={this.props.navigationConfig.useNativeAnimations} renderNavigationView={this._renderNavigationView} drawerPosition={this.props.navigationConfig.drawerPosition === 'right' ? DrawerLayout.positions.Right : DrawerLayout.positions.Left}\n /* props specific to react-native-gesture-handler/DrawerLayout */\n drawerType={this.props.navigationConfig.drawerType} edgeWidth={this.props.navigationConfig.edgeWidth} hideStatusBar={this.props.navigationConfig.hideStatusBar} statusBarAnimation={this.props.navigationConfig.statusBarAnimation} minSwipeDistance={this.props.navigationConfig.minSwipeDistance} overlayColor={this.props.navigationConfig.overlayColor} drawerContainerStyle={this.props.navigationConfig.drawerContainerStyle} contentContainerStyle={this.props.navigationConfig.contentContainerStyle}>\n \n {this._renderContent()}\n \n ;\n }\n}\n\nconst styles = StyleSheet.create({\n pages: {\n flex: 1\n }\n});","function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\n/**\n * Copyright (c) Nicolas Gallagher.\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n */\nimport ColorPropType from '../ColorPropType';\nimport ViewStylePropTypes from '../View/ViewStylePropTypes';\nimport { array, number, oneOf, oneOfType, shape, string } from 'prop-types';\nvar numberOrString = oneOfType([number, string]);\n\nvar TextStylePropTypes = _objectSpread({}, ViewStylePropTypes, {\n color: ColorPropType,\n fontFamily: string,\n fontFeatureSettings: string,\n fontSize: numberOrString,\n fontStyle: string,\n fontWeight: string,\n fontVariant: array,\n letterSpacing: numberOrString,\n lineHeight: numberOrString,\n textAlign: oneOf(['center', 'end', 'inherit', 'justify', 'justify-all', 'left', 'right', 'start']),\n textAlignVertical: string,\n textDecorationColor: ColorPropType,\n textDecorationLine: string,\n textDecorationStyle: string,\n textShadowColor: ColorPropType,\n textShadowOffset: shape({\n width: number,\n height: number\n }),\n textShadowRadius: number,\n textTransform: oneOf(['capitalize', 'lowercase', 'none', 'uppercase']),\n writingDirection: oneOf(['auto', 'ltr', 'rtl']),\n\n /* @platform web */\n textIndent: numberOrString,\n textOverflow: string,\n textRendering: oneOf(['auto', 'geometricPrecision', 'optimizeLegibility', 'optimizeSpeed']),\n unicodeBidi: oneOf(['normal', 'bidi-override', 'embed', 'isolate', 'isolate-override', 'plaintext']),\n whiteSpace: string,\n wordBreak: oneOf(['normal', 'break-all', 'break-word', 'keep-all']),\n wordWrap: string,\n MozOsxFontSmoothing: string,\n WebkitFontSmoothing: string\n});\n\nexport default TextStylePropTypes;","/**\n * Copyright (c) Nicolas Gallagher.\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n */\nimport StyleSheetPropType from '../../modules/StyleSheetPropType';\nimport TextStylePropTypes from './TextStylePropTypes';\nimport { any, array, bool, func, number, oneOf, oneOfType, string } from 'prop-types';\nvar TextPropTypes = {\n accessibilityComponentType: string,\n accessibilityLabel: string,\n accessibilityLiveRegion: oneOf(['assertive', 'none', 'polite']),\n accessibilityRole: oneOf(['button', 'header', 'heading', 'label', 'link', 'listitem', 'none', 'text']),\n accessibilityTraits: oneOfType([array, string]),\n accessible: bool,\n children: any,\n importantForAccessibility: oneOf(['auto', 'no', 'no-hide-descendants', 'yes']),\n maxFontSizeMultiplier: number,\n nativeID: string,\n numberOfLines: number,\n onBlur: func,\n onFocus: func,\n onLayout: func,\n onPress: func,\n selectable: bool,\n style: StyleSheetPropType(TextStylePropTypes),\n testID: string,\n // web extensions\n onContextMenu: func,\n itemID: string,\n itemRef: string,\n itemProp: string,\n itemScope: string,\n itemType: string\n};\nexport default TextPropTypes;","import * as React from 'react';\nimport { Dimensions } from 'react-native';\nimport hoistNonReactStatic from 'hoist-non-react-statics';\n\nexport const isOrientationLandscape = ({ width, height }) => width > height;\n\nexport default function withDimensions(WrappedComponent) {\n const { width, height } = Dimensions.get('window');\n\n class EnhancedComponent extends React.Component {\n static displayName = `withDimensions(${WrappedComponent.displayName})`;\n\n state = {\n dimensions: { width, height },\n isLandscape: isOrientationLandscape({ width, height }),\n };\n\n componentDidMount() {\n Dimensions.addEventListener('change', this.handleOrientationChange);\n }\n\n componentWillUnmount() {\n Dimensions.removeEventListener('change', this.handleOrientationChange);\n }\n\n handleOrientationChange = ({ window }) => {\n const isLandscape = isOrientationLandscape(window);\n this.setState({ isLandscape });\n };\n\n render() {\n return ;\n }\n }\n\n return hoistNonReactStatic(EnhancedComponent, WrappedComponent);\n}\n","/* @flow */\n\nimport React from 'react';\nimport {\n Animated,\n TouchableWithoutFeedback,\n StyleSheet,\n View,\n Keyboard,\n Platform,\n} from 'react-native';\nimport { SafeAreaView } from '@react-navigation/native';\n\nimport CrossFadeIcon from './CrossFadeIcon';\nimport withDimensions from '../utils/withDimensions';\n\nexport type TabBarOptions = {\n keyboardHidesTabBar: boolean,\n activeTintColor?: string,\n inactiveTintColor?: string,\n activeBackgroundColor?: string,\n inactiveBackgroundColor?: string,\n allowFontScaling: boolean,\n showLabel: boolean,\n showIcon: boolean,\n labelStyle: any,\n tabStyle: any,\n adaptive?: boolean,\n style: any,\n};\n\ntype Props = TabBarOptions & {\n navigation: any,\n descriptors: any,\n jumpTo: any,\n onTabPress: any,\n onTabLongPress: any,\n getAccessibilityLabel: (props: { route: any }) => string,\n getAccessibilityRole: (props: { route: any }) => string,\n getAccessibilityStates: (props: { route: any }) => string[],\n getButtonComponent: ({ route: any }) => any,\n getLabelText: ({ route: any }) => any,\n getTestID: (props: { route: any }) => string,\n renderIcon: any,\n dimensions: { width: number, height: number },\n isLandscape: boolean,\n safeAreaInset: { top: string, right: string, bottom: string, left: string },\n};\n\ntype State = {\n layout: { height: number, width: number },\n keyboard: boolean,\n visible: Animated.Value,\n};\n\nconst majorVersion = parseInt(Platform.Version, 10);\nconst isIos = Platform.OS === 'ios';\nconst isIOS11 = majorVersion >= 11 && isIos;\n\nconst DEFAULT_MAX_TAB_ITEM_WIDTH = 125;\n\nclass TouchableWithoutFeedbackWrapper extends React.Component<*> {\n render() {\n const {\n onPress,\n onLongPress,\n testID,\n accessibilityLabel,\n accessibilityRole,\n accessibilityStates,\n ...props\n } = this.props;\n\n return (\n \n \n \n );\n }\n}\n\nclass TabBarBottom extends React.Component {\n static defaultProps = {\n keyboardHidesTabBar: false,\n activeTintColor: '#007AFF',\n activeBackgroundColor: 'transparent',\n inactiveTintColor: '#8E8E93',\n inactiveBackgroundColor: 'transparent',\n showLabel: true,\n showIcon: true,\n allowFontScaling: true,\n adaptive: isIOS11,\n safeAreaInset: { bottom: 'always', top: 'never' },\n };\n\n state = {\n layout: { height: 0, width: 0 },\n keyboard: false,\n visible: new Animated.Value(1),\n };\n\n componentDidMount() {\n if (Platform.OS === 'ios') {\n Keyboard.addListener('keyboardWillShow', this._handleKeyboardShow);\n Keyboard.addListener('keyboardWillHide', this._handleKeyboardHide);\n } else {\n Keyboard.addListener('keyboardDidShow', this._handleKeyboardShow);\n Keyboard.addListener('keyboardDidHide', this._handleKeyboardHide);\n }\n }\n\n componentWillUnmount() {\n if (Platform.OS === 'ios') {\n Keyboard.removeListener('keyboardWillShow', this._handleKeyboardShow);\n Keyboard.removeListener('keyboardWillHide', this._handleKeyboardHide);\n } else {\n Keyboard.removeListener('keyboardDidShow', this._handleKeyboardShow);\n Keyboard.removeListener('keyboardDidHide', this._handleKeyboardHide);\n }\n }\n\n _handleKeyboardShow = () =>\n this.setState({ keyboard: true }, () =>\n Animated.timing(this.state.visible, {\n toValue: 0,\n duration: 150,\n useNativeDriver: true,\n }).start()\n );\n\n _handleKeyboardHide = () =>\n Animated.timing(this.state.visible, {\n toValue: 1,\n duration: 100,\n useNativeDriver: true,\n }).start(() => {\n this.setState({ keyboard: false });\n });\n\n _handleLayout = e => {\n const { layout } = this.state;\n const { height, width } = e.nativeEvent.layout;\n\n if (height === layout.height && width === layout.width) {\n return;\n }\n\n this.setState({\n layout: {\n height,\n width,\n },\n });\n };\n\n _renderLabel = ({ route, focused }) => {\n const {\n activeTintColor,\n inactiveTintColor,\n labelStyle,\n showLabel,\n showIcon,\n allowFontScaling,\n } = this.props;\n\n if (showLabel === false) {\n return null;\n }\n\n const label = this.props.getLabelText({ route });\n const tintColor = focused ? activeTintColor : inactiveTintColor;\n\n if (typeof label === 'string') {\n return (\n \n {label}\n \n );\n }\n\n if (typeof label === 'function') {\n return label({ route, focused, tintColor });\n }\n\n return label;\n };\n\n _renderIcon = ({ route, focused }) => {\n const {\n navigation,\n activeTintColor,\n inactiveTintColor,\n renderIcon,\n showIcon,\n showLabel,\n } = this.props;\n if (showIcon === false) {\n return null;\n }\n\n const horizontal = this._shouldUseHorizontalLabels();\n\n const activeOpacity = focused ? 1 : 0;\n const inactiveOpacity = focused ? 0 : 1;\n\n return (\n \n );\n };\n\n _shouldUseHorizontalLabels = () => {\n const { routes } = this.props.navigation.state;\n const { isLandscape, dimensions, adaptive, tabStyle } = this.props;\n\n if (!adaptive) {\n return false;\n }\n\n if (Platform.isPad) {\n let maxTabItemWidth = DEFAULT_MAX_TAB_ITEM_WIDTH;\n\n const flattenedStyle = StyleSheet.flatten(tabStyle);\n\n if (flattenedStyle) {\n if (typeof flattenedStyle.width === 'number') {\n maxTabItemWidth = flattenedStyle.width;\n } else if (typeof flattenedStyle.maxWidth === 'number') {\n maxTabItemWidth = flattenedStyle.maxWidth;\n }\n }\n\n return routes.length * maxTabItemWidth <= dimensions.width;\n } else {\n return isLandscape;\n }\n };\n\n render() {\n const {\n navigation,\n keyboardHidesTabBar,\n activeBackgroundColor,\n inactiveBackgroundColor,\n onTabPress,\n onTabLongPress,\n safeAreaInset,\n style,\n tabStyle,\n } = this.props;\n\n const { routes } = navigation.state;\n\n const tabBarStyle = [\n styles.tabBar,\n this._shouldUseHorizontalLabels() && !Platform.isPad\n ? styles.tabBarCompact\n : styles.tabBarRegular,\n style,\n ];\n\n return (\n \n \n {routes.map((route, index) => {\n const focused = index === navigation.state.index;\n const scene = { route, focused };\n const accessibilityLabel = this.props.getAccessibilityLabel({\n route,\n });\n\n const accessibilityRole = this.props.getAccessibilityRole({\n route,\n });\n\n const accessibilityStates = this.props.getAccessibilityStates(\n scene\n );\n\n const testID = this.props.getTestID({ route });\n\n const backgroundColor = focused\n ? activeBackgroundColor\n : inactiveBackgroundColor;\n\n const ButtonComponent =\n this.props.getButtonComponent({ route }) ||\n TouchableWithoutFeedbackWrapper;\n\n return (\n onTabPress({ route })}\n onLongPress={() => onTabLongPress({ route })}\n testID={testID}\n accessibilityLabel={accessibilityLabel}\n accessibilityRole={accessibilityRole}\n accessibilityStates={accessibilityStates}\n style={[\n styles.tab,\n { backgroundColor },\n this._shouldUseHorizontalLabels()\n ? styles.tabLandscape\n : styles.tabPortrait,\n tabStyle,\n ]}\n >\n {this._renderIcon(scene)}\n {this._renderLabel(scene)}\n \n );\n })}\n \n \n );\n }\n}\n\nconst DEFAULT_HEIGHT = 49;\nconst COMPACT_HEIGHT = 29;\n\nconst styles = StyleSheet.create({\n tabBar: {\n backgroundColor: '#fff',\n borderTopWidth: StyleSheet.hairlineWidth,\n borderTopColor: 'rgba(0, 0, 0, .3)',\n flexDirection: 'row',\n },\n container: {\n left: 0,\n right: 0,\n bottom: 0,\n elevation: 8,\n },\n tabBarCompact: {\n height: COMPACT_HEIGHT,\n },\n tabBarRegular: {\n height: DEFAULT_HEIGHT,\n },\n tab: {\n flex: 1,\n alignItems: isIos ? 'center' : 'stretch',\n },\n tabPortrait: {\n justifyContent: 'flex-end',\n flexDirection: 'column',\n },\n tabLandscape: {\n justifyContent: 'center',\n flexDirection: 'row',\n },\n iconWithoutLabel: {\n flex: 1,\n },\n iconWithLabel: {\n flex: 1,\n },\n iconWithExplicitHeight: {\n height: Platform.isPad ? DEFAULT_HEIGHT : COMPACT_HEIGHT,\n },\n label: {\n textAlign: 'center',\n backgroundColor: 'transparent',\n },\n labelBeneath: {\n fontSize: 11,\n marginBottom: 1.5,\n },\n labelBeside: {\n fontSize: 12,\n marginLeft: 15,\n },\n});\n\nexport default withDimensions(TabBarBottom);\n","var arrayWithHoles = require(\"./arrayWithHoles\");\n\nvar iterableToArrayLimit = require(\"./iterableToArrayLimit\");\n\nvar nonIterableRest = require(\"./nonIterableRest\");\n\nfunction _slicedToArray(arr, i) {\n return arrayWithHoles(arr) || iterableToArrayLimit(arr, i) || nonIterableRest();\n}\n\nmodule.exports = _slicedToArray;","\"use strict\";\n\n/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n */\nvar TouchEventUtils = {\n /**\n * Utility function for common case of extracting out the primary touch from a\n * touch event.\n * - `touchEnd` events usually do not have the `touches` property.\n * http://stackoverflow.com/questions/3666929/\n * mobile-sarai-touchend-event-not-firing-when-last-touch-is-removed\n *\n * @param {Event} nativeEvent Native event that may or may not be a touch.\n * @return {TouchesObject?} an object with pageX and pageY or null.\n */\n extractSingleTouch: function extractSingleTouch(nativeEvent) {\n var touches = nativeEvent.touches;\n var changedTouches = nativeEvent.changedTouches;\n var hasTouches = touches && touches.length > 0;\n var hasChangedTouches = changedTouches && changedTouches.length > 0;\n return !hasTouches && hasChangedTouches ? changedTouches[0] : hasTouches ? touches[0] : nativeEvent;\n }\n};\nmodule.exports = TouchEventUtils;","/**\n * Copyright (c) 2015-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n * @format\n */\n'use strict';\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\nimport AnimatedValue from '../nodes/AnimatedValue';\nimport AnimatedValueXY from '../nodes/AnimatedValueXY';\nimport Animation from './Animation';\nimport SpringConfig from '../SpringConfig';\nimport invariant from 'fbjs/lib/invariant';\nimport { shouldUseNativeDriver } from '../NativeAnimatedHelper';\n\nfunction withDefault(value, defaultValue) {\n if (value === undefined || value === null) {\n return defaultValue;\n }\n\n return value;\n}\n\nvar SpringAnimation =\n/*#__PURE__*/\nfunction (_Animation) {\n _inheritsLoose(SpringAnimation, _Animation);\n\n function SpringAnimation(config) {\n var _this;\n\n _this = _Animation.call(this) || this;\n _this._overshootClamping = withDefault(config.overshootClamping, false);\n _this._restDisplacementThreshold = withDefault(config.restDisplacementThreshold, 0.001);\n _this._restSpeedThreshold = withDefault(config.restSpeedThreshold, 0.001);\n _this._initialVelocity = withDefault(config.velocity, 0);\n _this._lastVelocity = withDefault(config.velocity, 0);\n _this._toValue = config.toValue;\n _this._delay = withDefault(config.delay, 0);\n _this._useNativeDriver = shouldUseNativeDriver(config);\n _this.__isInteraction = config.isInteraction !== undefined ? config.isInteraction : true;\n _this.__iterations = config.iterations !== undefined ? config.iterations : 1;\n\n if (config.stiffness !== undefined || config.damping !== undefined || config.mass !== undefined) {\n invariant(config.bounciness === undefined && config.speed === undefined && config.tension === undefined && config.friction === undefined, 'You can define one of bounciness/speed, tension/friction, or stiffness/damping/mass, but not more than one');\n _this._stiffness = withDefault(config.stiffness, 100);\n _this._damping = withDefault(config.damping, 10);\n _this._mass = withDefault(config.mass, 1);\n } else if (config.bounciness !== undefined || config.speed !== undefined) {\n // Convert the origami bounciness/speed values to stiffness/damping\n // We assume mass is 1.\n invariant(config.tension === undefined && config.friction === undefined && config.stiffness === undefined && config.damping === undefined && config.mass === undefined, 'You can define one of bounciness/speed, tension/friction, or stiffness/damping/mass, but not more than one');\n var springConfig = SpringConfig.fromBouncinessAndSpeed(withDefault(config.bounciness, 8), withDefault(config.speed, 12));\n _this._stiffness = springConfig.stiffness;\n _this._damping = springConfig.damping;\n _this._mass = 1;\n } else {\n // Convert the origami tension/friction values to stiffness/damping\n // We assume mass is 1.\n var _springConfig = SpringConfig.fromOrigamiTensionAndFriction(withDefault(config.tension, 40), withDefault(config.friction, 7));\n\n _this._stiffness = _springConfig.stiffness;\n _this._damping = _springConfig.damping;\n _this._mass = 1;\n }\n\n invariant(_this._stiffness > 0, 'Stiffness value must be greater than 0');\n invariant(_this._damping > 0, 'Damping value must be greater than 0');\n invariant(_this._mass > 0, 'Mass value must be greater than 0');\n return _this;\n }\n\n var _proto = SpringAnimation.prototype;\n\n _proto.__getNativeAnimationConfig = function __getNativeAnimationConfig() {\n return {\n type: 'spring',\n overshootClamping: this._overshootClamping,\n restDisplacementThreshold: this._restDisplacementThreshold,\n restSpeedThreshold: this._restSpeedThreshold,\n stiffness: this._stiffness,\n damping: this._damping,\n mass: this._mass,\n initialVelocity: withDefault(this._initialVelocity, this._lastVelocity),\n toValue: this._toValue,\n iterations: this.__iterations\n };\n };\n\n _proto.start = function start(fromValue, onUpdate, onEnd, previousAnimation, animatedValue) {\n var _this2 = this;\n\n this.__active = true;\n this._startPosition = fromValue;\n this._lastPosition = this._startPosition;\n this._onUpdate = onUpdate;\n this.__onEnd = onEnd;\n this._lastTime = Date.now();\n this._frameTime = 0.0;\n\n if (previousAnimation instanceof SpringAnimation) {\n var internalState = previousAnimation.getInternalState();\n this._lastPosition = internalState.lastPosition;\n this._lastVelocity = internalState.lastVelocity; // Set the initial velocity to the last velocity\n\n this._initialVelocity = this._lastVelocity;\n this._lastTime = internalState.lastTime;\n }\n\n var start = function start() {\n if (_this2._useNativeDriver) {\n _this2.__startNativeAnimation(animatedValue);\n } else {\n _this2.onUpdate();\n }\n }; // If this._delay is more than 0, we start after the timeout.\n\n\n if (this._delay) {\n this._timeout = setTimeout(start, this._delay);\n } else {\n start();\n }\n };\n\n _proto.getInternalState = function getInternalState() {\n return {\n lastPosition: this._lastPosition,\n lastVelocity: this._lastVelocity,\n lastTime: this._lastTime\n };\n }\n /**\n * This spring model is based off of a damped harmonic oscillator\n * (https://en.wikipedia.org/wiki/Harmonic_oscillator#Damped_harmonic_oscillator).\n *\n * We use the closed form of the second order differential equation:\n *\n * x'' + (2ζ⍵_0)x' + ⍵^2x = 0\n *\n * where\n * ⍵_0 = √(k / m) (undamped angular frequency of the oscillator),\n * ζ = c / 2√mk (damping ratio),\n * c = damping constant\n * k = stiffness\n * m = mass\n *\n * The derivation of the closed form is described in detail here:\n * http://planetmath.org/sites/default/files/texpdf/39745.pdf\n *\n * This algorithm happens to match the algorithm used by CASpringAnimation,\n * a QuartzCore (iOS) API that creates spring animations.\n */\n ;\n\n _proto.onUpdate = function onUpdate() {\n // If for some reason we lost a lot of frames (e.g. process large payload or\n // stopped in the debugger), we only advance by 4 frames worth of\n // computation and will continue on the next frame. It's better to have it\n // running at faster speed than jumping to the end.\n var MAX_STEPS = 64;\n var now = Date.now();\n\n if (now > this._lastTime + MAX_STEPS) {\n now = this._lastTime + MAX_STEPS;\n }\n\n var deltaTime = (now - this._lastTime) / 1000;\n this._frameTime += deltaTime;\n var c = this._damping;\n var m = this._mass;\n var k = this._stiffness;\n var v0 = -this._initialVelocity;\n var zeta = c / (2 * Math.sqrt(k * m)); // damping ratio\n\n var omega0 = Math.sqrt(k / m); // undamped angular frequency of the oscillator (rad/ms)\n\n var omega1 = omega0 * Math.sqrt(1.0 - zeta * zeta); // exponential decay\n\n var x0 = this._toValue - this._startPosition; // calculate the oscillation from x0 = 1 to x = 0\n\n var position = 0.0;\n var velocity = 0.0;\n var t = this._frameTime;\n\n if (zeta < 1) {\n // Under damped\n var envelope = Math.exp(-zeta * omega0 * t);\n position = this._toValue - envelope * ((v0 + zeta * omega0 * x0) / omega1 * Math.sin(omega1 * t) + x0 * Math.cos(omega1 * t)); // This looks crazy -- it's actually just the derivative of the\n // oscillation function\n\n velocity = zeta * omega0 * envelope * (Math.sin(omega1 * t) * (v0 + zeta * omega0 * x0) / omega1 + x0 * Math.cos(omega1 * t)) - envelope * (Math.cos(omega1 * t) * (v0 + zeta * omega0 * x0) - omega1 * x0 * Math.sin(omega1 * t));\n } else {\n // Critically damped\n var _envelope = Math.exp(-omega0 * t);\n\n position = this._toValue - _envelope * (x0 + (v0 + omega0 * x0) * t);\n velocity = _envelope * (v0 * (t * omega0 - 1) + t * x0 * (omega0 * omega0));\n }\n\n this._lastTime = now;\n this._lastPosition = position;\n this._lastVelocity = velocity;\n\n this._onUpdate(position);\n\n if (!this.__active) {\n // a listener might have stopped us in _onUpdate\n return;\n } // Conditions for stopping the spring animation\n\n\n var isOvershooting = false;\n\n if (this._overshootClamping && this._stiffness !== 0) {\n if (this._startPosition < this._toValue) {\n isOvershooting = position > this._toValue;\n } else {\n isOvershooting = position < this._toValue;\n }\n }\n\n var isVelocity = Math.abs(velocity) <= this._restSpeedThreshold;\n\n var isDisplacement = true;\n\n if (this._stiffness !== 0) {\n isDisplacement = Math.abs(this._toValue - position) <= this._restDisplacementThreshold;\n }\n\n if (isOvershooting || isVelocity && isDisplacement) {\n if (this._stiffness !== 0) {\n // Ensure that we end up with a round value\n this._lastPosition = this._toValue;\n this._lastVelocity = 0;\n\n this._onUpdate(this._toValue);\n }\n\n this.__debouncedOnEnd({\n finished: true\n });\n\n return;\n }\n\n this._animationFrame = requestAnimationFrame(this.onUpdate.bind(this));\n };\n\n _proto.stop = function stop() {\n _Animation.prototype.stop.call(this);\n\n this.__active = false;\n clearTimeout(this._timeout);\n global.cancelAnimationFrame(this._animationFrame);\n\n this.__debouncedOnEnd({\n finished: false\n });\n };\n\n return SpringAnimation;\n}(Animation);\n\nexport default SpringAnimation;","/**\n * Copyright (c) 2015-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n */\n'use strict';\n\nfunction stiffnessFromOrigamiValue(oValue) {\n return (oValue - 30) * 3.62 + 194;\n}\n\nfunction dampingFromOrigamiValue(oValue) {\n return (oValue - 8) * 3 + 25;\n}\n\nfunction fromOrigamiTensionAndFriction(tension, friction) {\n return {\n stiffness: stiffnessFromOrigamiValue(tension),\n damping: dampingFromOrigamiValue(friction)\n };\n}\n\nfunction fromBouncinessAndSpeed(bounciness, speed) {\n function normalize(value, startValue, endValue) {\n return (value - startValue) / (endValue - startValue);\n }\n\n function projectNormal(n, start, end) {\n return start + n * (end - start);\n }\n\n function linearInterpolation(t, start, end) {\n return t * end + (1 - t) * start;\n }\n\n function quadraticOutInterpolation(t, start, end) {\n return linearInterpolation(2 * t - t * t, start, end);\n }\n\n function b3Friction1(x) {\n return 0.0007 * Math.pow(x, 3) - 0.031 * Math.pow(x, 2) + 0.64 * x + 1.28;\n }\n\n function b3Friction2(x) {\n return 0.000044 * Math.pow(x, 3) - 0.006 * Math.pow(x, 2) + 0.36 * x + 2;\n }\n\n function b3Friction3(x) {\n return 0.00000045 * Math.pow(x, 3) - 0.000332 * Math.pow(x, 2) + 0.1078 * x + 5.84;\n }\n\n function b3Nobounce(tension) {\n if (tension <= 18) {\n return b3Friction1(tension);\n } else if (tension > 18 && tension <= 44) {\n return b3Friction2(tension);\n } else {\n return b3Friction3(tension);\n }\n }\n\n var b = normalize(bounciness / 1.7, 0, 20);\n b = projectNormal(b, 0, 0.8);\n var s = normalize(speed / 1.7, 0, 20);\n var bouncyTension = projectNormal(s, 0.5, 200);\n var bouncyFriction = quadraticOutInterpolation(b, b3Nobounce(bouncyTension), 0.01);\n return {\n stiffness: stiffnessFromOrigamiValue(bouncyTension),\n damping: dampingFromOrigamiValue(bouncyFriction)\n };\n}\n\nexport { fromOrigamiTensionAndFriction, fromBouncinessAndSpeed };\nexport default {\n fromOrigamiTensionAndFriction: fromOrigamiTensionAndFriction,\n fromBouncinessAndSpeed: fromBouncinessAndSpeed\n};","/**\n * Copyright (c) 2015-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n * @format\n */\n'use strict';\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\nimport AnimatedValue from '../nodes/AnimatedValue';\nimport AnimatedValueXY from '../nodes/AnimatedValueXY';\nimport Animation from './Animation';\nimport Easing from '../Easing';\nimport { shouldUseNativeDriver } from '../NativeAnimatedHelper';\n\nvar _easeInOut;\n\nfunction easeInOut() {\n if (!_easeInOut) {\n _easeInOut = Easing.inOut(Easing.ease);\n }\n\n return _easeInOut;\n}\n\nvar TimingAnimation =\n/*#__PURE__*/\nfunction (_Animation) {\n _inheritsLoose(TimingAnimation, _Animation);\n\n function TimingAnimation(config) {\n var _this;\n\n _this = _Animation.call(this) || this;\n _this._toValue = config.toValue;\n _this._easing = config.easing !== undefined ? config.easing : easeInOut();\n _this._duration = config.duration !== undefined ? config.duration : 500;\n _this._delay = config.delay !== undefined ? config.delay : 0;\n _this.__iterations = config.iterations !== undefined ? config.iterations : 1;\n _this.__isInteraction = config.isInteraction !== undefined ? config.isInteraction : true;\n _this._useNativeDriver = shouldUseNativeDriver(config);\n return _this;\n }\n\n var _proto = TimingAnimation.prototype;\n\n _proto.__getNativeAnimationConfig = function __getNativeAnimationConfig() {\n var frameDuration = 1000.0 / 60.0;\n var frames = [];\n\n for (var dt = 0.0; dt < this._duration; dt += frameDuration) {\n frames.push(this._easing(dt / this._duration));\n }\n\n frames.push(this._easing(1));\n return {\n type: 'frames',\n frames: frames,\n toValue: this._toValue,\n iterations: this.__iterations\n };\n };\n\n _proto.start = function start(fromValue, onUpdate, onEnd, previousAnimation, animatedValue) {\n var _this2 = this;\n\n this.__active = true;\n this._fromValue = fromValue;\n this._onUpdate = onUpdate;\n this.__onEnd = onEnd;\n\n var start = function start() {\n // Animations that sometimes have 0 duration and sometimes do not\n // still need to use the native driver when duration is 0 so as to\n // not cause intermixed JS and native animations.\n if (_this2._duration === 0 && !_this2._useNativeDriver) {\n _this2._onUpdate(_this2._toValue);\n\n _this2.__debouncedOnEnd({\n finished: true\n });\n } else {\n _this2._startTime = Date.now();\n\n if (_this2._useNativeDriver) {\n _this2.__startNativeAnimation(animatedValue);\n } else {\n _this2._animationFrame = requestAnimationFrame(_this2.onUpdate.bind(_this2));\n }\n }\n };\n\n if (this._delay) {\n this._timeout = setTimeout(start, this._delay);\n } else {\n start();\n }\n };\n\n _proto.onUpdate = function onUpdate() {\n var now = Date.now();\n\n if (now >= this._startTime + this._duration) {\n if (this._duration === 0) {\n this._onUpdate(this._toValue);\n } else {\n this._onUpdate(this._fromValue + this._easing(1) * (this._toValue - this._fromValue));\n }\n\n this.__debouncedOnEnd({\n finished: true\n });\n\n return;\n }\n\n this._onUpdate(this._fromValue + this._easing((now - this._startTime) / this._duration) * (this._toValue - this._fromValue));\n\n if (this.__active) {\n this._animationFrame = requestAnimationFrame(this.onUpdate.bind(this));\n }\n };\n\n _proto.stop = function stop() {\n _Animation.prototype.stop.call(this);\n\n this.__active = false;\n clearTimeout(this._timeout);\n global.cancelAnimationFrame(this._animationFrame);\n\n this.__debouncedOnEnd({\n finished: false\n });\n };\n\n return TimingAnimation;\n}(Animation);\n\nexport default TimingAnimation;","/* global window */\nimport ponyfill from './ponyfill.js';\n\nvar root;\n\nif (typeof self !== 'undefined') {\n root = self;\n} else if (typeof window !== 'undefined') {\n root = window;\n} else if (typeof global !== 'undefined') {\n root = global;\n} else if (typeof module !== 'undefined') {\n root = module;\n} else {\n root = Function('return this')();\n}\n\nvar result = ponyfill(root);\nexport default result;\n","/**\n * @license\n * Lodash \n * Copyright OpenJS Foundation and other contributors \n * Released under MIT license \n * Based on Underscore.js 1.8.3 \n * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors\n */\n;(function() {\n\n /** Used as a safe reference for `undefined` in pre-ES5 environments. */\n var undefined;\n\n /** Used as the semantic version number. */\n var VERSION = '4.17.15';\n\n /** Used as the size to enable large array optimizations. */\n var LARGE_ARRAY_SIZE = 200;\n\n /** Error message constants. */\n var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.',\n FUNC_ERROR_TEXT = 'Expected a function';\n\n /** Used to stand-in for `undefined` hash values. */\n var HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n /** Used as the maximum memoize cache size. */\n var MAX_MEMOIZE_SIZE = 500;\n\n /** Used as the internal argument placeholder. */\n var PLACEHOLDER = '__lodash_placeholder__';\n\n /** Used to compose bitmasks for cloning. */\n var CLONE_DEEP_FLAG = 1,\n CLONE_FLAT_FLAG = 2,\n CLONE_SYMBOLS_FLAG = 4;\n\n /** Used to compose bitmasks for value comparisons. */\n var COMPARE_PARTIAL_FLAG = 1,\n COMPARE_UNORDERED_FLAG = 2;\n\n /** Used to compose bitmasks for function metadata. */\n var WRAP_BIND_FLAG = 1,\n WRAP_BIND_KEY_FLAG = 2,\n WRAP_CURRY_BOUND_FLAG = 4,\n WRAP_CURRY_FLAG = 8,\n WRAP_CURRY_RIGHT_FLAG = 16,\n WRAP_PARTIAL_FLAG = 32,\n WRAP_PARTIAL_RIGHT_FLAG = 64,\n WRAP_ARY_FLAG = 128,\n WRAP_REARG_FLAG = 256,\n WRAP_FLIP_FLAG = 512;\n\n /** Used as default options for `_.truncate`. */\n var DEFAULT_TRUNC_LENGTH = 30,\n DEFAULT_TRUNC_OMISSION = '...';\n\n /** Used to detect hot functions by number of calls within a span of milliseconds. */\n var HOT_COUNT = 800,\n HOT_SPAN = 16;\n\n /** Used to indicate the type of lazy iteratees. */\n var LAZY_FILTER_FLAG = 1,\n LAZY_MAP_FLAG = 2,\n LAZY_WHILE_FLAG = 3;\n\n /** Used as references for various `Number` constants. */\n var INFINITY = 1 / 0,\n MAX_SAFE_INTEGER = 9007199254740991,\n MAX_INTEGER = 1.7976931348623157e+308,\n NAN = 0 / 0;\n\n /** Used as references for the maximum length and index of an array. */\n var MAX_ARRAY_LENGTH = 4294967295,\n MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,\n HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;\n\n /** Used to associate wrap methods with their bit flags. */\n var wrapFlags = [\n ['ary', WRAP_ARY_FLAG],\n ['bind', WRAP_BIND_FLAG],\n ['bindKey', WRAP_BIND_KEY_FLAG],\n ['curry', WRAP_CURRY_FLAG],\n ['curryRight', WRAP_CURRY_RIGHT_FLAG],\n ['flip', WRAP_FLIP_FLAG],\n ['partial', WRAP_PARTIAL_FLAG],\n ['partialRight', WRAP_PARTIAL_RIGHT_FLAG],\n ['rearg', WRAP_REARG_FLAG]\n ];\n\n /** `Object#toString` result references. */\n var argsTag = '[object Arguments]',\n arrayTag = '[object Array]',\n asyncTag = '[object AsyncFunction]',\n boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n domExcTag = '[object DOMException]',\n errorTag = '[object Error]',\n funcTag = '[object Function]',\n genTag = '[object GeneratorFunction]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n nullTag = '[object Null]',\n objectTag = '[object Object]',\n promiseTag = '[object Promise]',\n proxyTag = '[object Proxy]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n symbolTag = '[object Symbol]',\n undefinedTag = '[object Undefined]',\n weakMapTag = '[object WeakMap]',\n weakSetTag = '[object WeakSet]';\n\n var arrayBufferTag = '[object ArrayBuffer]',\n dataViewTag = '[object DataView]',\n float32Tag = '[object Float32Array]',\n float64Tag = '[object Float64Array]',\n int8Tag = '[object Int8Array]',\n int16Tag = '[object Int16Array]',\n int32Tag = '[object Int32Array]',\n uint8Tag = '[object Uint8Array]',\n uint8ClampedTag = '[object Uint8ClampedArray]',\n uint16Tag = '[object Uint16Array]',\n uint32Tag = '[object Uint32Array]';\n\n /** Used to match empty string literals in compiled template source. */\n var reEmptyStringLeading = /\\b__p \\+= '';/g,\n reEmptyStringMiddle = /\\b(__p \\+=) '' \\+/g,\n reEmptyStringTrailing = /(__e\\(.*?\\)|\\b__t\\)) \\+\\n'';/g;\n\n /** Used to match HTML entities and HTML characters. */\n var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,\n reUnescapedHtml = /[&<>\"']/g,\n reHasEscapedHtml = RegExp(reEscapedHtml.source),\n reHasUnescapedHtml = RegExp(reUnescapedHtml.source);\n\n /** Used to match template delimiters. */\n var reEscape = /<%-([\\s\\S]+?)%>/g,\n reEvaluate = /<%([\\s\\S]+?)%>/g,\n reInterpolate = /<%=([\\s\\S]+?)%>/g;\n\n /** Used to match property names within property paths. */\n var reIsDeepProp = /\\.|\\[(?:[^[\\]]*|([\"'])(?:(?!\\1)[^\\\\]|\\\\.)*?\\1)\\]/,\n reIsPlainProp = /^\\w*$/,\n rePropName = /[^.[\\]]+|\\[(?:(-?\\d+(?:\\.\\d+)?)|([\"'])((?:(?!\\2)[^\\\\]|\\\\.)*?)\\2)\\]|(?=(?:\\.|\\[\\])(?:\\.|\\[\\]|$))/g;\n\n /**\n * Used to match `RegExp`\n * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).\n */\n var reRegExpChar = /[\\\\^$.*+?()[\\]{}|]/g,\n reHasRegExpChar = RegExp(reRegExpChar.source);\n\n /** Used to match leading and trailing whitespace. */\n var reTrim = /^\\s+|\\s+$/g,\n reTrimStart = /^\\s+/,\n reTrimEnd = /\\s+$/;\n\n /** Used to match wrap detail comments. */\n var reWrapComment = /\\{(?:\\n\\/\\* \\[wrapped with .+\\] \\*\\/)?\\n?/,\n reWrapDetails = /\\{\\n\\/\\* \\[wrapped with (.+)\\] \\*/,\n reSplitDetails = /,? & /;\n\n /** Used to match words composed of alphanumeric characters. */\n var reAsciiWord = /[^\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\x7f]+/g;\n\n /** Used to match backslashes in property paths. */\n var reEscapeChar = /\\\\(\\\\)?/g;\n\n /**\n * Used to match\n * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).\n */\n var reEsTemplate = /\\$\\{([^\\\\}]*(?:\\\\.[^\\\\}]*)*)\\}/g;\n\n /** Used to match `RegExp` flags from their coerced string values. */\n var reFlags = /\\w*$/;\n\n /** Used to detect bad signed hexadecimal string values. */\n var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;\n\n /** Used to detect binary string values. */\n var reIsBinary = /^0b[01]+$/i;\n\n /** Used to detect host constructors (Safari). */\n var reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\n /** Used to detect octal string values. */\n var reIsOctal = /^0o[0-7]+$/i;\n\n /** Used to detect unsigned integer values. */\n var reIsUint = /^(?:0|[1-9]\\d*)$/;\n\n /** Used to match Latin Unicode letters (excluding mathematical operators). */\n var reLatin = /[\\xc0-\\xd6\\xd8-\\xf6\\xf8-\\xff\\u0100-\\u017f]/g;\n\n /** Used to ensure capturing order of template delimiters. */\n var reNoMatch = /($^)/;\n\n /** Used to match unescaped characters in compiled string literals. */\n var reUnescapedString = /['\\n\\r\\u2028\\u2029\\\\]/g;\n\n /** Used to compose unicode character classes. */\n var rsAstralRange = '\\\\ud800-\\\\udfff',\n rsComboMarksRange = '\\\\u0300-\\\\u036f',\n reComboHalfMarksRange = '\\\\ufe20-\\\\ufe2f',\n rsComboSymbolsRange = '\\\\u20d0-\\\\u20ff',\n rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,\n rsDingbatRange = '\\\\u2700-\\\\u27bf',\n rsLowerRange = 'a-z\\\\xdf-\\\\xf6\\\\xf8-\\\\xff',\n rsMathOpRange = '\\\\xac\\\\xb1\\\\xd7\\\\xf7',\n rsNonCharRange = '\\\\x00-\\\\x2f\\\\x3a-\\\\x40\\\\x5b-\\\\x60\\\\x7b-\\\\xbf',\n rsPunctuationRange = '\\\\u2000-\\\\u206f',\n rsSpaceRange = ' \\\\t\\\\x0b\\\\f\\\\xa0\\\\ufeff\\\\n\\\\r\\\\u2028\\\\u2029\\\\u1680\\\\u180e\\\\u2000\\\\u2001\\\\u2002\\\\u2003\\\\u2004\\\\u2005\\\\u2006\\\\u2007\\\\u2008\\\\u2009\\\\u200a\\\\u202f\\\\u205f\\\\u3000',\n rsUpperRange = 'A-Z\\\\xc0-\\\\xd6\\\\xd8-\\\\xde',\n rsVarRange = '\\\\ufe0e\\\\ufe0f',\n rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;\n\n /** Used to compose unicode capture groups. */\n var rsApos = \"['\\u2019]\",\n rsAstral = '[' + rsAstralRange + ']',\n rsBreak = '[' + rsBreakRange + ']',\n rsCombo = '[' + rsComboRange + ']',\n rsDigits = '\\\\d+',\n rsDingbat = '[' + rsDingbatRange + ']',\n rsLower = '[' + rsLowerRange + ']',\n rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']',\n rsFitz = '\\\\ud83c[\\\\udffb-\\\\udfff]',\n rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',\n rsNonAstral = '[^' + rsAstralRange + ']',\n rsRegional = '(?:\\\\ud83c[\\\\udde6-\\\\uddff]){2}',\n rsSurrPair = '[\\\\ud800-\\\\udbff][\\\\udc00-\\\\udfff]',\n rsUpper = '[' + rsUpperRange + ']',\n rsZWJ = '\\\\u200d';\n\n /** Used to compose unicode regexes. */\n var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')',\n rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')',\n rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',\n rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',\n reOptMod = rsModifier + '?',\n rsOptVar = '[' + rsVarRange + ']?',\n rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',\n rsOrdLower = '\\\\d*(?:1st|2nd|3rd|(?![123])\\\\dth)(?=\\\\b|[A-Z_])',\n rsOrdUpper = '\\\\d*(?:1ST|2ND|3RD|(?![123])\\\\dTH)(?=\\\\b|[a-z_])',\n rsSeq = rsOptVar + reOptMod + rsOptJoin,\n rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq,\n rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';\n\n /** Used to match apostrophes. */\n var reApos = RegExp(rsApos, 'g');\n\n /**\n * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and\n * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).\n */\n var reComboMark = RegExp(rsCombo, 'g');\n\n /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */\n var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');\n\n /** Used to match complex or compound words. */\n var reUnicodeWord = RegExp([\n rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',\n rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')',\n rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower,\n rsUpper + '+' + rsOptContrUpper,\n rsOrdUpper,\n rsOrdLower,\n rsDigits,\n rsEmoji\n ].join('|'), 'g');\n\n /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */\n var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']');\n\n /** Used to detect strings that need a more robust regexp to match words. */\n var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/;\n\n /** Used to assign default `context` object properties. */\n var contextProps = [\n 'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array',\n 'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object',\n 'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array',\n 'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap',\n '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout'\n ];\n\n /** Used to make template sourceURLs easier to identify. */\n var templateCounter = -1;\n\n /** Used to identify `toStringTag` values of typed arrays. */\n var typedArrayTags = {};\n typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =\n typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =\n typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =\n typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =\n typedArrayTags[uint32Tag] = true;\n typedArrayTags[argsTag] = typedArrayTags[arrayTag] =\n typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =\n typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =\n typedArrayTags[errorTag] = typedArrayTags[funcTag] =\n typedArrayTags[mapTag] = typedArrayTags[numberTag] =\n typedArrayTags[objectTag] = typedArrayTags[regexpTag] =\n typedArrayTags[setTag] = typedArrayTags[stringTag] =\n typedArrayTags[weakMapTag] = false;\n\n /** Used to identify `toStringTag` values supported by `_.clone`. */\n var cloneableTags = {};\n cloneableTags[argsTag] = cloneableTags[arrayTag] =\n cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =\n cloneableTags[boolTag] = cloneableTags[dateTag] =\n cloneableTags[float32Tag] = cloneableTags[float64Tag] =\n cloneableTags[int8Tag] = cloneableTags[int16Tag] =\n cloneableTags[int32Tag] = cloneableTags[mapTag] =\n cloneableTags[numberTag] = cloneableTags[objectTag] =\n cloneableTags[regexpTag] = cloneableTags[setTag] =\n cloneableTags[stringTag] = cloneableTags[symbolTag] =\n cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =\n cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;\n cloneableTags[errorTag] = cloneableTags[funcTag] =\n cloneableTags[weakMapTag] = false;\n\n /** Used to map Latin Unicode letters to basic Latin letters. */\n var deburredLetters = {\n // Latin-1 Supplement block.\n '\\xc0': 'A', '\\xc1': 'A', '\\xc2': 'A', '\\xc3': 'A', '\\xc4': 'A', '\\xc5': 'A',\n '\\xe0': 'a', '\\xe1': 'a', '\\xe2': 'a', '\\xe3': 'a', '\\xe4': 'a', '\\xe5': 'a',\n '\\xc7': 'C', '\\xe7': 'c',\n '\\xd0': 'D', '\\xf0': 'd',\n '\\xc8': 'E', '\\xc9': 'E', '\\xca': 'E', '\\xcb': 'E',\n '\\xe8': 'e', '\\xe9': 'e', '\\xea': 'e', '\\xeb': 'e',\n '\\xcc': 'I', '\\xcd': 'I', '\\xce': 'I', '\\xcf': 'I',\n '\\xec': 'i', '\\xed': 'i', '\\xee': 'i', '\\xef': 'i',\n '\\xd1': 'N', '\\xf1': 'n',\n '\\xd2': 'O', '\\xd3': 'O', '\\xd4': 'O', '\\xd5': 'O', '\\xd6': 'O', '\\xd8': 'O',\n '\\xf2': 'o', '\\xf3': 'o', '\\xf4': 'o', '\\xf5': 'o', '\\xf6': 'o', '\\xf8': 'o',\n '\\xd9': 'U', '\\xda': 'U', '\\xdb': 'U', '\\xdc': 'U',\n '\\xf9': 'u', '\\xfa': 'u', '\\xfb': 'u', '\\xfc': 'u',\n '\\xdd': 'Y', '\\xfd': 'y', '\\xff': 'y',\n '\\xc6': 'Ae', '\\xe6': 'ae',\n '\\xde': 'Th', '\\xfe': 'th',\n '\\xdf': 'ss',\n // Latin Extended-A block.\n '\\u0100': 'A', '\\u0102': 'A', '\\u0104': 'A',\n '\\u0101': 'a', '\\u0103': 'a', '\\u0105': 'a',\n '\\u0106': 'C', '\\u0108': 'C', '\\u010a': 'C', '\\u010c': 'C',\n '\\u0107': 'c', '\\u0109': 'c', '\\u010b': 'c', '\\u010d': 'c',\n '\\u010e': 'D', '\\u0110': 'D', '\\u010f': 'd', '\\u0111': 'd',\n '\\u0112': 'E', '\\u0114': 'E', '\\u0116': 'E', '\\u0118': 'E', '\\u011a': 'E',\n '\\u0113': 'e', '\\u0115': 'e', '\\u0117': 'e', '\\u0119': 'e', '\\u011b': 'e',\n '\\u011c': 'G', '\\u011e': 'G', '\\u0120': 'G', '\\u0122': 'G',\n '\\u011d': 'g', '\\u011f': 'g', '\\u0121': 'g', '\\u0123': 'g',\n '\\u0124': 'H', '\\u0126': 'H', '\\u0125': 'h', '\\u0127': 'h',\n '\\u0128': 'I', '\\u012a': 'I', '\\u012c': 'I', '\\u012e': 'I', '\\u0130': 'I',\n '\\u0129': 'i', '\\u012b': 'i', '\\u012d': 'i', '\\u012f': 'i', '\\u0131': 'i',\n '\\u0134': 'J', '\\u0135': 'j',\n '\\u0136': 'K', '\\u0137': 'k', '\\u0138': 'k',\n '\\u0139': 'L', '\\u013b': 'L', '\\u013d': 'L', '\\u013f': 'L', '\\u0141': 'L',\n '\\u013a': 'l', '\\u013c': 'l', '\\u013e': 'l', '\\u0140': 'l', '\\u0142': 'l',\n '\\u0143': 'N', '\\u0145': 'N', '\\u0147': 'N', '\\u014a': 'N',\n '\\u0144': 'n', '\\u0146': 'n', '\\u0148': 'n', '\\u014b': 'n',\n '\\u014c': 'O', '\\u014e': 'O', '\\u0150': 'O',\n '\\u014d': 'o', '\\u014f': 'o', '\\u0151': 'o',\n '\\u0154': 'R', '\\u0156': 'R', '\\u0158': 'R',\n '\\u0155': 'r', '\\u0157': 'r', '\\u0159': 'r',\n '\\u015a': 'S', '\\u015c': 'S', '\\u015e': 'S', '\\u0160': 'S',\n '\\u015b': 's', '\\u015d': 's', '\\u015f': 's', '\\u0161': 's',\n '\\u0162': 'T', '\\u0164': 'T', '\\u0166': 'T',\n '\\u0163': 't', '\\u0165': 't', '\\u0167': 't',\n '\\u0168': 'U', '\\u016a': 'U', '\\u016c': 'U', '\\u016e': 'U', '\\u0170': 'U', '\\u0172': 'U',\n '\\u0169': 'u', '\\u016b': 'u', '\\u016d': 'u', '\\u016f': 'u', '\\u0171': 'u', '\\u0173': 'u',\n '\\u0174': 'W', '\\u0175': 'w',\n '\\u0176': 'Y', '\\u0177': 'y', '\\u0178': 'Y',\n '\\u0179': 'Z', '\\u017b': 'Z', '\\u017d': 'Z',\n '\\u017a': 'z', '\\u017c': 'z', '\\u017e': 'z',\n '\\u0132': 'IJ', '\\u0133': 'ij',\n '\\u0152': 'Oe', '\\u0153': 'oe',\n '\\u0149': \"'n\", '\\u017f': 's'\n };\n\n /** Used to map characters to HTML entities. */\n var htmlEscapes = {\n '&': '&',\n '<': '<',\n '>': '>',\n '\"': '"',\n \"'\": '''\n };\n\n /** Used to map HTML entities to characters. */\n var htmlUnescapes = {\n '&': '&',\n '<': '<',\n '>': '>',\n '"': '\"',\n ''': \"'\"\n };\n\n /** Used to escape characters for inclusion in compiled string literals. */\n var stringEscapes = {\n '\\\\': '\\\\',\n \"'\": \"'\",\n '\\n': 'n',\n '\\r': 'r',\n '\\u2028': 'u2028',\n '\\u2029': 'u2029'\n };\n\n /** Built-in method references without a dependency on `root`. */\n var freeParseFloat = parseFloat,\n freeParseInt = parseInt;\n\n /** Detect free variable `global` from Node.js. */\n var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;\n\n /** Detect free variable `self`. */\n var freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n /** Used as a reference to the global object. */\n var root = freeGlobal || freeSelf || Function('return this')();\n\n /** Detect free variable `exports`. */\n var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n /** Detect free variable `module`. */\n var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n /** Detect the popular CommonJS extension `module.exports`. */\n var moduleExports = freeModule && freeModule.exports === freeExports;\n\n /** Detect free variable `process` from Node.js. */\n var freeProcess = moduleExports && freeGlobal.process;\n\n /** Used to access faster Node.js helpers. */\n var nodeUtil = (function() {\n try {\n // Use `util.types` for Node.js 10+.\n var types = freeModule && freeModule.require && freeModule.require('util').types;\n\n if (types) {\n return types;\n }\n\n // Legacy `process.binding('util')` for Node.js < 10.\n return freeProcess && freeProcess.binding && freeProcess.binding('util');\n } catch (e) {}\n }());\n\n /* Node.js helper references. */\n var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer,\n nodeIsDate = nodeUtil && nodeUtil.isDate,\n nodeIsMap = nodeUtil && nodeUtil.isMap,\n nodeIsRegExp = nodeUtil && nodeUtil.isRegExp,\n nodeIsSet = nodeUtil && nodeUtil.isSet,\n nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;\n\n /*--------------------------------------------------------------------------*/\n\n /**\n * A faster alternative to `Function#apply`, this function invokes `func`\n * with the `this` binding of `thisArg` and the arguments of `args`.\n *\n * @private\n * @param {Function} func The function to invoke.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {Array} args The arguments to invoke `func` with.\n * @returns {*} Returns the result of `func`.\n */\n function apply(func, thisArg, args) {\n switch (args.length) {\n case 0: return func.call(thisArg);\n case 1: return func.call(thisArg, args[0]);\n case 2: return func.call(thisArg, args[0], args[1]);\n case 3: return func.call(thisArg, args[0], args[1], args[2]);\n }\n return func.apply(thisArg, args);\n }\n\n /**\n * A specialized version of `baseAggregator` for arrays.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} setter The function to set `accumulator` values.\n * @param {Function} iteratee The iteratee to transform keys.\n * @param {Object} accumulator The initial aggregated object.\n * @returns {Function} Returns `accumulator`.\n */\n function arrayAggregator(array, setter, iteratee, accumulator) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n var value = array[index];\n setter(accumulator, value, iteratee(value), array);\n }\n return accumulator;\n }\n\n /**\n * A specialized version of `_.forEach` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\n function arrayEach(array, iteratee) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (iteratee(array[index], index, array) === false) {\n break;\n }\n }\n return array;\n }\n\n /**\n * A specialized version of `_.forEachRight` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\n function arrayEachRight(array, iteratee) {\n var length = array == null ? 0 : array.length;\n\n while (length--) {\n if (iteratee(array[length], length, array) === false) {\n break;\n }\n }\n return array;\n }\n\n /**\n * A specialized version of `_.every` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if all elements pass the predicate check,\n * else `false`.\n */\n function arrayEvery(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (!predicate(array[index], index, array)) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * A specialized version of `_.filter` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n */\n function arrayFilter(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (predicate(value, index, array)) {\n result[resIndex++] = value;\n }\n }\n return result;\n }\n\n /**\n * A specialized version of `_.includes` for arrays without support for\n * specifying an index to search from.\n *\n * @private\n * @param {Array} [array] The array to inspect.\n * @param {*} target The value to search for.\n * @returns {boolean} Returns `true` if `target` is found, else `false`.\n */\n function arrayIncludes(array, value) {\n var length = array == null ? 0 : array.length;\n return !!length && baseIndexOf(array, value, 0) > -1;\n }\n\n /**\n * This function is like `arrayIncludes` except that it accepts a comparator.\n *\n * @private\n * @param {Array} [array] The array to inspect.\n * @param {*} target The value to search for.\n * @param {Function} comparator The comparator invoked per element.\n * @returns {boolean} Returns `true` if `target` is found, else `false`.\n */\n function arrayIncludesWith(array, value, comparator) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (comparator(value, array[index])) {\n return true;\n }\n }\n return false;\n }\n\n /**\n * A specialized version of `_.map` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n */\n function arrayMap(array, iteratee) {\n var index = -1,\n length = array == null ? 0 : array.length,\n result = Array(length);\n\n while (++index < length) {\n result[index] = iteratee(array[index], index, array);\n }\n return result;\n }\n\n /**\n * Appends the elements of `values` to `array`.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {Array} values The values to append.\n * @returns {Array} Returns `array`.\n */\n function arrayPush(array, values) {\n var index = -1,\n length = values.length,\n offset = array.length;\n\n while (++index < length) {\n array[offset + index] = values[index];\n }\n return array;\n }\n\n /**\n * A specialized version of `_.reduce` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @param {boolean} [initAccum] Specify using the first element of `array` as\n * the initial value.\n * @returns {*} Returns the accumulated value.\n */\n function arrayReduce(array, iteratee, accumulator, initAccum) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n if (initAccum && length) {\n accumulator = array[++index];\n }\n while (++index < length) {\n accumulator = iteratee(accumulator, array[index], index, array);\n }\n return accumulator;\n }\n\n /**\n * A specialized version of `_.reduceRight` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @param {boolean} [initAccum] Specify using the last element of `array` as\n * the initial value.\n * @returns {*} Returns the accumulated value.\n */\n function arrayReduceRight(array, iteratee, accumulator, initAccum) {\n var length = array == null ? 0 : array.length;\n if (initAccum && length) {\n accumulator = array[--length];\n }\n while (length--) {\n accumulator = iteratee(accumulator, array[length], length, array);\n }\n return accumulator;\n }\n\n /**\n * A specialized version of `_.some` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n */\n function arraySome(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (predicate(array[index], index, array)) {\n return true;\n }\n }\n return false;\n }\n\n /**\n * Gets the size of an ASCII `string`.\n *\n * @private\n * @param {string} string The string inspect.\n * @returns {number} Returns the string size.\n */\n var asciiSize = baseProperty('length');\n\n /**\n * Converts an ASCII `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\n function asciiToArray(string) {\n return string.split('');\n }\n\n /**\n * Splits an ASCII `string` into an array of its words.\n *\n * @private\n * @param {string} The string to inspect.\n * @returns {Array} Returns the words of `string`.\n */\n function asciiWords(string) {\n return string.match(reAsciiWord) || [];\n }\n\n /**\n * The base implementation of methods like `_.findKey` and `_.findLastKey`,\n * without support for iteratee shorthands, which iterates over `collection`\n * using `eachFunc`.\n *\n * @private\n * @param {Array|Object} collection The collection to inspect.\n * @param {Function} predicate The function invoked per iteration.\n * @param {Function} eachFunc The function to iterate over `collection`.\n * @returns {*} Returns the found element or its key, else `undefined`.\n */\n function baseFindKey(collection, predicate, eachFunc) {\n var result;\n eachFunc(collection, function(value, key, collection) {\n if (predicate(value, key, collection)) {\n result = key;\n return false;\n }\n });\n return result;\n }\n\n /**\n * The base implementation of `_.findIndex` and `_.findLastIndex` without\n * support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} predicate The function invoked per iteration.\n * @param {number} fromIndex The index to search from.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function baseFindIndex(array, predicate, fromIndex, fromRight) {\n var length = array.length,\n index = fromIndex + (fromRight ? 1 : -1);\n\n while ((fromRight ? index-- : ++index < length)) {\n if (predicate(array[index], index, array)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * The base implementation of `_.indexOf` without `fromIndex` bounds checks.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function baseIndexOf(array, value, fromIndex) {\n return value === value\n ? strictIndexOf(array, value, fromIndex)\n : baseFindIndex(array, baseIsNaN, fromIndex);\n }\n\n /**\n * This function is like `baseIndexOf` except that it accepts a comparator.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @param {Function} comparator The comparator invoked per element.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function baseIndexOfWith(array, value, fromIndex, comparator) {\n var index = fromIndex - 1,\n length = array.length;\n\n while (++index < length) {\n if (comparator(array[index], value)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * The base implementation of `_.isNaN` without support for number objects.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n */\n function baseIsNaN(value) {\n return value !== value;\n }\n\n /**\n * The base implementation of `_.mean` and `_.meanBy` without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {number} Returns the mean.\n */\n function baseMean(array, iteratee) {\n var length = array == null ? 0 : array.length;\n return length ? (baseSum(array, iteratee) / length) : NAN;\n }\n\n /**\n * The base implementation of `_.property` without support for deep paths.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @returns {Function} Returns the new accessor function.\n */\n function baseProperty(key) {\n return function(object) {\n return object == null ? undefined : object[key];\n };\n }\n\n /**\n * The base implementation of `_.propertyOf` without support for deep paths.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Function} Returns the new accessor function.\n */\n function basePropertyOf(object) {\n return function(key) {\n return object == null ? undefined : object[key];\n };\n }\n\n /**\n * The base implementation of `_.reduce` and `_.reduceRight`, without support\n * for iteratee shorthands, which iterates over `collection` using `eachFunc`.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} accumulator The initial value.\n * @param {boolean} initAccum Specify using the first or last element of\n * `collection` as the initial value.\n * @param {Function} eachFunc The function to iterate over `collection`.\n * @returns {*} Returns the accumulated value.\n */\n function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) {\n eachFunc(collection, function(value, index, collection) {\n accumulator = initAccum\n ? (initAccum = false, value)\n : iteratee(accumulator, value, index, collection);\n });\n return accumulator;\n }\n\n /**\n * The base implementation of `_.sortBy` which uses `comparer` to define the\n * sort order of `array` and replaces criteria objects with their corresponding\n * values.\n *\n * @private\n * @param {Array} array The array to sort.\n * @param {Function} comparer The function to define sort order.\n * @returns {Array} Returns `array`.\n */\n function baseSortBy(array, comparer) {\n var length = array.length;\n\n array.sort(comparer);\n while (length--) {\n array[length] = array[length].value;\n }\n return array;\n }\n\n /**\n * The base implementation of `_.sum` and `_.sumBy` without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {number} Returns the sum.\n */\n function baseSum(array, iteratee) {\n var result,\n index = -1,\n length = array.length;\n\n while (++index < length) {\n var current = iteratee(array[index]);\n if (current !== undefined) {\n result = result === undefined ? current : (result + current);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.times` without support for iteratee shorthands\n * or max array length checks.\n *\n * @private\n * @param {number} n The number of times to invoke `iteratee`.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the array of results.\n */\n function baseTimes(n, iteratee) {\n var index = -1,\n result = Array(n);\n\n while (++index < n) {\n result[index] = iteratee(index);\n }\n return result;\n }\n\n /**\n * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array\n * of key-value pairs for `object` corresponding to the property names of `props`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} props The property names to get values for.\n * @returns {Object} Returns the key-value pairs.\n */\n function baseToPairs(object, props) {\n return arrayMap(props, function(key) {\n return [key, object[key]];\n });\n }\n\n /**\n * The base implementation of `_.unary` without support for storing metadata.\n *\n * @private\n * @param {Function} func The function to cap arguments for.\n * @returns {Function} Returns the new capped function.\n */\n function baseUnary(func) {\n return function(value) {\n return func(value);\n };\n }\n\n /**\n * The base implementation of `_.values` and `_.valuesIn` which creates an\n * array of `object` property values corresponding to the property names\n * of `props`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} props The property names to get values for.\n * @returns {Object} Returns the array of property values.\n */\n function baseValues(object, props) {\n return arrayMap(props, function(key) {\n return object[key];\n });\n }\n\n /**\n * Checks if a `cache` value for `key` exists.\n *\n * @private\n * @param {Object} cache The cache to query.\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function cacheHas(cache, key) {\n return cache.has(key);\n }\n\n /**\n * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol\n * that is not found in the character symbols.\n *\n * @private\n * @param {Array} strSymbols The string symbols to inspect.\n * @param {Array} chrSymbols The character symbols to find.\n * @returns {number} Returns the index of the first unmatched string symbol.\n */\n function charsStartIndex(strSymbols, chrSymbols) {\n var index = -1,\n length = strSymbols.length;\n\n while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}\n return index;\n }\n\n /**\n * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol\n * that is not found in the character symbols.\n *\n * @private\n * @param {Array} strSymbols The string symbols to inspect.\n * @param {Array} chrSymbols The character symbols to find.\n * @returns {number} Returns the index of the last unmatched string symbol.\n */\n function charsEndIndex(strSymbols, chrSymbols) {\n var index = strSymbols.length;\n\n while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}\n return index;\n }\n\n /**\n * Gets the number of `placeholder` occurrences in `array`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} placeholder The placeholder to search for.\n * @returns {number} Returns the placeholder count.\n */\n function countHolders(array, placeholder) {\n var length = array.length,\n result = 0;\n\n while (length--) {\n if (array[length] === placeholder) {\n ++result;\n }\n }\n return result;\n }\n\n /**\n * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A\n * letters to basic Latin letters.\n *\n * @private\n * @param {string} letter The matched letter to deburr.\n * @returns {string} Returns the deburred letter.\n */\n var deburrLetter = basePropertyOf(deburredLetters);\n\n /**\n * Used by `_.escape` to convert characters to HTML entities.\n *\n * @private\n * @param {string} chr The matched character to escape.\n * @returns {string} Returns the escaped character.\n */\n var escapeHtmlChar = basePropertyOf(htmlEscapes);\n\n /**\n * Used by `_.template` to escape characters for inclusion in compiled string literals.\n *\n * @private\n * @param {string} chr The matched character to escape.\n * @returns {string} Returns the escaped character.\n */\n function escapeStringChar(chr) {\n return '\\\\' + stringEscapes[chr];\n }\n\n /**\n * Gets the value at `key` of `object`.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\n function getValue(object, key) {\n return object == null ? undefined : object[key];\n }\n\n /**\n * Checks if `string` contains Unicode symbols.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {boolean} Returns `true` if a symbol is found, else `false`.\n */\n function hasUnicode(string) {\n return reHasUnicode.test(string);\n }\n\n /**\n * Checks if `string` contains a word composed of Unicode symbols.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {boolean} Returns `true` if a word is found, else `false`.\n */\n function hasUnicodeWord(string) {\n return reHasUnicodeWord.test(string);\n }\n\n /**\n * Converts `iterator` to an array.\n *\n * @private\n * @param {Object} iterator The iterator to convert.\n * @returns {Array} Returns the converted array.\n */\n function iteratorToArray(iterator) {\n var data,\n result = [];\n\n while (!(data = iterator.next()).done) {\n result.push(data.value);\n }\n return result;\n }\n\n /**\n * Converts `map` to its key-value pairs.\n *\n * @private\n * @param {Object} map The map to convert.\n * @returns {Array} Returns the key-value pairs.\n */\n function mapToArray(map) {\n var index = -1,\n result = Array(map.size);\n\n map.forEach(function(value, key) {\n result[++index] = [key, value];\n });\n return result;\n }\n\n /**\n * Creates a unary function that invokes `func` with its argument transformed.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {Function} transform The argument transform.\n * @returns {Function} Returns the new function.\n */\n function overArg(func, transform) {\n return function(arg) {\n return func(transform(arg));\n };\n }\n\n /**\n * Replaces all `placeholder` elements in `array` with an internal placeholder\n * and returns an array of their indexes.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {*} placeholder The placeholder to replace.\n * @returns {Array} Returns the new array of placeholder indexes.\n */\n function replaceHolders(array, placeholder) {\n var index = -1,\n length = array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (value === placeholder || value === PLACEHOLDER) {\n array[index] = PLACEHOLDER;\n result[resIndex++] = index;\n }\n }\n return result;\n }\n\n /**\n * Converts `set` to an array of its values.\n *\n * @private\n * @param {Object} set The set to convert.\n * @returns {Array} Returns the values.\n */\n function setToArray(set) {\n var index = -1,\n result = Array(set.size);\n\n set.forEach(function(value) {\n result[++index] = value;\n });\n return result;\n }\n\n /**\n * Converts `set` to its value-value pairs.\n *\n * @private\n * @param {Object} set The set to convert.\n * @returns {Array} Returns the value-value pairs.\n */\n function setToPairs(set) {\n var index = -1,\n result = Array(set.size);\n\n set.forEach(function(value) {\n result[++index] = [value, value];\n });\n return result;\n }\n\n /**\n * A specialized version of `_.indexOf` which performs strict equality\n * comparisons of values, i.e. `===`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function strictIndexOf(array, value, fromIndex) {\n var index = fromIndex - 1,\n length = array.length;\n\n while (++index < length) {\n if (array[index] === value) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * A specialized version of `_.lastIndexOf` which performs strict equality\n * comparisons of values, i.e. `===`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function strictLastIndexOf(array, value, fromIndex) {\n var index = fromIndex + 1;\n while (index--) {\n if (array[index] === value) {\n return index;\n }\n }\n return index;\n }\n\n /**\n * Gets the number of symbols in `string`.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {number} Returns the string size.\n */\n function stringSize(string) {\n return hasUnicode(string)\n ? unicodeSize(string)\n : asciiSize(string);\n }\n\n /**\n * Converts `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\n function stringToArray(string) {\n return hasUnicode(string)\n ? unicodeToArray(string)\n : asciiToArray(string);\n }\n\n /**\n * Used by `_.unescape` to convert HTML entities to characters.\n *\n * @private\n * @param {string} chr The matched character to unescape.\n * @returns {string} Returns the unescaped character.\n */\n var unescapeHtmlChar = basePropertyOf(htmlUnescapes);\n\n /**\n * Gets the size of a Unicode `string`.\n *\n * @private\n * @param {string} string The string inspect.\n * @returns {number} Returns the string size.\n */\n function unicodeSize(string) {\n var result = reUnicode.lastIndex = 0;\n while (reUnicode.test(string)) {\n ++result;\n }\n return result;\n }\n\n /**\n * Converts a Unicode `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\n function unicodeToArray(string) {\n return string.match(reUnicode) || [];\n }\n\n /**\n * Splits a Unicode `string` into an array of its words.\n *\n * @private\n * @param {string} The string to inspect.\n * @returns {Array} Returns the words of `string`.\n */\n function unicodeWords(string) {\n return string.match(reUnicodeWord) || [];\n }\n\n /*--------------------------------------------------------------------------*/\n\n /**\n * Create a new pristine `lodash` function using the `context` object.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Util\n * @param {Object} [context=root] The context object.\n * @returns {Function} Returns a new `lodash` function.\n * @example\n *\n * _.mixin({ 'foo': _.constant('foo') });\n *\n * var lodash = _.runInContext();\n * lodash.mixin({ 'bar': lodash.constant('bar') });\n *\n * _.isFunction(_.foo);\n * // => true\n * _.isFunction(_.bar);\n * // => false\n *\n * lodash.isFunction(lodash.foo);\n * // => false\n * lodash.isFunction(lodash.bar);\n * // => true\n *\n * // Create a suped-up `defer` in Node.js.\n * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;\n */\n var runInContext = (function runInContext(context) {\n context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps));\n\n /** Built-in constructor references. */\n var Array = context.Array,\n Date = context.Date,\n Error = context.Error,\n Function = context.Function,\n Math = context.Math,\n Object = context.Object,\n RegExp = context.RegExp,\n String = context.String,\n TypeError = context.TypeError;\n\n /** Used for built-in method references. */\n var arrayProto = Array.prototype,\n funcProto = Function.prototype,\n objectProto = Object.prototype;\n\n /** Used to detect overreaching core-js shims. */\n var coreJsData = context['__core-js_shared__'];\n\n /** Used to resolve the decompiled source of functions. */\n var funcToString = funcProto.toString;\n\n /** Used to check objects for own properties. */\n var hasOwnProperty = objectProto.hasOwnProperty;\n\n /** Used to generate unique IDs. */\n var idCounter = 0;\n\n /** Used to detect methods masquerading as native. */\n var maskSrcKey = (function() {\n var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');\n return uid ? ('Symbol(src)_1.' + uid) : '';\n }());\n\n /**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\n var nativeObjectToString = objectProto.toString;\n\n /** Used to infer the `Object` constructor. */\n var objectCtorString = funcToString.call(Object);\n\n /** Used to restore the original `_` reference in `_.noConflict`. */\n var oldDash = root._;\n\n /** Used to detect if a method is native. */\n var reIsNative = RegExp('^' +\n funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\\\$&')\n .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n );\n\n /** Built-in value references. */\n var Buffer = moduleExports ? context.Buffer : undefined,\n Symbol = context.Symbol,\n Uint8Array = context.Uint8Array,\n allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined,\n getPrototype = overArg(Object.getPrototypeOf, Object),\n objectCreate = Object.create,\n propertyIsEnumerable = objectProto.propertyIsEnumerable,\n splice = arrayProto.splice,\n spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined,\n symIterator = Symbol ? Symbol.iterator : undefined,\n symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n var defineProperty = (function() {\n try {\n var func = getNative(Object, 'defineProperty');\n func({}, '', {});\n return func;\n } catch (e) {}\n }());\n\n /** Mocked built-ins. */\n var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout,\n ctxNow = Date && Date.now !== root.Date.now && Date.now,\n ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout;\n\n /* Built-in method references for those with the same name as other `lodash` methods. */\n var nativeCeil = Math.ceil,\n nativeFloor = Math.floor,\n nativeGetSymbols = Object.getOwnPropertySymbols,\n nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,\n nativeIsFinite = context.isFinite,\n nativeJoin = arrayProto.join,\n nativeKeys = overArg(Object.keys, Object),\n nativeMax = Math.max,\n nativeMin = Math.min,\n nativeNow = Date.now,\n nativeParseInt = context.parseInt,\n nativeRandom = Math.random,\n nativeReverse = arrayProto.reverse;\n\n /* Built-in method references that are verified to be native. */\n var DataView = getNative(context, 'DataView'),\n Map = getNative(context, 'Map'),\n Promise = getNative(context, 'Promise'),\n Set = getNative(context, 'Set'),\n WeakMap = getNative(context, 'WeakMap'),\n nativeCreate = getNative(Object, 'create');\n\n /** Used to store function metadata. */\n var metaMap = WeakMap && new WeakMap;\n\n /** Used to lookup unminified function names. */\n var realNames = {};\n\n /** Used to detect maps, sets, and weakmaps. */\n var dataViewCtorString = toSource(DataView),\n mapCtorString = toSource(Map),\n promiseCtorString = toSource(Promise),\n setCtorString = toSource(Set),\n weakMapCtorString = toSource(WeakMap);\n\n /** Used to convert symbols to primitives and strings. */\n var symbolProto = Symbol ? Symbol.prototype : undefined,\n symbolValueOf = symbolProto ? symbolProto.valueOf : undefined,\n symbolToString = symbolProto ? symbolProto.toString : undefined;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a `lodash` object which wraps `value` to enable implicit method\n * chain sequences. Methods that operate on and return arrays, collections,\n * and functions can be chained together. Methods that retrieve a single value\n * or may return a primitive value will automatically end the chain sequence\n * and return the unwrapped value. Otherwise, the value must be unwrapped\n * with `_#value`.\n *\n * Explicit chain sequences, which must be unwrapped with `_#value`, may be\n * enabled using `_.chain`.\n *\n * The execution of chained methods is lazy, that is, it's deferred until\n * `_#value` is implicitly or explicitly called.\n *\n * Lazy evaluation allows several methods to support shortcut fusion.\n * Shortcut fusion is an optimization to merge iteratee calls; this avoids\n * the creation of intermediate arrays and can greatly reduce the number of\n * iteratee executions. Sections of a chain sequence qualify for shortcut\n * fusion if the section is applied to an array and iteratees accept only\n * one argument. The heuristic for whether a section qualifies for shortcut\n * fusion is subject to change.\n *\n * Chaining is supported in custom builds as long as the `_#value` method is\n * directly or indirectly included in the build.\n *\n * In addition to lodash methods, wrappers have `Array` and `String` methods.\n *\n * The wrapper `Array` methods are:\n * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift`\n *\n * The wrapper `String` methods are:\n * `replace` and `split`\n *\n * The wrapper methods that support shortcut fusion are:\n * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`,\n * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`,\n * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray`\n *\n * The chainable wrapper methods are:\n * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`,\n * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`,\n * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`,\n * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`,\n * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`,\n * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`,\n * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`,\n * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`,\n * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`,\n * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`,\n * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`,\n * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`,\n * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`,\n * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`,\n * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`,\n * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`,\n * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`,\n * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`,\n * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`,\n * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`,\n * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`,\n * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`,\n * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`,\n * `zipObject`, `zipObjectDeep`, and `zipWith`\n *\n * The wrapper methods that are **not** chainable by default are:\n * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`,\n * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`,\n * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`,\n * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`,\n * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`,\n * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`,\n * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`,\n * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`,\n * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`,\n * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`,\n * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,\n * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,\n * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,\n * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,\n * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,\n * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,\n * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,\n * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,\n * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,\n * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,\n * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,\n * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,\n * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,\n * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,\n * `upperFirst`, `value`, and `words`\n *\n * @name _\n * @constructor\n * @category Seq\n * @param {*} value The value to wrap in a `lodash` instance.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * var wrapped = _([1, 2, 3]);\n *\n * // Returns an unwrapped value.\n * wrapped.reduce(_.add);\n * // => 6\n *\n * // Returns a wrapped value.\n * var squares = wrapped.map(square);\n *\n * _.isArray(squares);\n * // => false\n *\n * _.isArray(squares.value());\n * // => true\n */\n function lodash(value) {\n if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {\n if (value instanceof LodashWrapper) {\n return value;\n }\n if (hasOwnProperty.call(value, '__wrapped__')) {\n return wrapperClone(value);\n }\n }\n return new LodashWrapper(value);\n }\n\n /**\n * The base implementation of `_.create` without support for assigning\n * properties to the created object.\n *\n * @private\n * @param {Object} proto The object to inherit from.\n * @returns {Object} Returns the new object.\n */\n var baseCreate = (function() {\n function object() {}\n return function(proto) {\n if (!isObject(proto)) {\n return {};\n }\n if (objectCreate) {\n return objectCreate(proto);\n }\n object.prototype = proto;\n var result = new object;\n object.prototype = undefined;\n return result;\n };\n }());\n\n /**\n * The function whose prototype chain sequence wrappers inherit from.\n *\n * @private\n */\n function baseLodash() {\n // No operation performed.\n }\n\n /**\n * The base constructor for creating `lodash` wrapper objects.\n *\n * @private\n * @param {*} value The value to wrap.\n * @param {boolean} [chainAll] Enable explicit method chain sequences.\n */\n function LodashWrapper(value, chainAll) {\n this.__wrapped__ = value;\n this.__actions__ = [];\n this.__chain__ = !!chainAll;\n this.__index__ = 0;\n this.__values__ = undefined;\n }\n\n /**\n * By default, the template delimiters used by lodash are like those in\n * embedded Ruby (ERB) as well as ES2015 template strings. Change the\n * following template settings to use alternative delimiters.\n *\n * @static\n * @memberOf _\n * @type {Object}\n */\n lodash.templateSettings = {\n\n /**\n * Used to detect `data` property values to be HTML-escaped.\n *\n * @memberOf _.templateSettings\n * @type {RegExp}\n */\n 'escape': reEscape,\n\n /**\n * Used to detect code to be evaluated.\n *\n * @memberOf _.templateSettings\n * @type {RegExp}\n */\n 'evaluate': reEvaluate,\n\n /**\n * Used to detect `data` property values to inject.\n *\n * @memberOf _.templateSettings\n * @type {RegExp}\n */\n 'interpolate': reInterpolate,\n\n /**\n * Used to reference the data object in the template text.\n *\n * @memberOf _.templateSettings\n * @type {string}\n */\n 'variable': '',\n\n /**\n * Used to import variables into the compiled template.\n *\n * @memberOf _.templateSettings\n * @type {Object}\n */\n 'imports': {\n\n /**\n * A reference to the `lodash` function.\n *\n * @memberOf _.templateSettings.imports\n * @type {Function}\n */\n '_': lodash\n }\n };\n\n // Ensure wrappers are instances of `baseLodash`.\n lodash.prototype = baseLodash.prototype;\n lodash.prototype.constructor = lodash;\n\n LodashWrapper.prototype = baseCreate(baseLodash.prototype);\n LodashWrapper.prototype.constructor = LodashWrapper;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.\n *\n * @private\n * @constructor\n * @param {*} value The value to wrap.\n */\n function LazyWrapper(value) {\n this.__wrapped__ = value;\n this.__actions__ = [];\n this.__dir__ = 1;\n this.__filtered__ = false;\n this.__iteratees__ = [];\n this.__takeCount__ = MAX_ARRAY_LENGTH;\n this.__views__ = [];\n }\n\n /**\n * Creates a clone of the lazy wrapper object.\n *\n * @private\n * @name clone\n * @memberOf LazyWrapper\n * @returns {Object} Returns the cloned `LazyWrapper` object.\n */\n function lazyClone() {\n var result = new LazyWrapper(this.__wrapped__);\n result.__actions__ = copyArray(this.__actions__);\n result.__dir__ = this.__dir__;\n result.__filtered__ = this.__filtered__;\n result.__iteratees__ = copyArray(this.__iteratees__);\n result.__takeCount__ = this.__takeCount__;\n result.__views__ = copyArray(this.__views__);\n return result;\n }\n\n /**\n * Reverses the direction of lazy iteration.\n *\n * @private\n * @name reverse\n * @memberOf LazyWrapper\n * @returns {Object} Returns the new reversed `LazyWrapper` object.\n */\n function lazyReverse() {\n if (this.__filtered__) {\n var result = new LazyWrapper(this);\n result.__dir__ = -1;\n result.__filtered__ = true;\n } else {\n result = this.clone();\n result.__dir__ *= -1;\n }\n return result;\n }\n\n /**\n * Extracts the unwrapped value from its lazy wrapper.\n *\n * @private\n * @name value\n * @memberOf LazyWrapper\n * @returns {*} Returns the unwrapped value.\n */\n function lazyValue() {\n var array = this.__wrapped__.value(),\n dir = this.__dir__,\n isArr = isArray(array),\n isRight = dir < 0,\n arrLength = isArr ? array.length : 0,\n view = getView(0, arrLength, this.__views__),\n start = view.start,\n end = view.end,\n length = end - start,\n index = isRight ? end : (start - 1),\n iteratees = this.__iteratees__,\n iterLength = iteratees.length,\n resIndex = 0,\n takeCount = nativeMin(length, this.__takeCount__);\n\n if (!isArr || (!isRight && arrLength == length && takeCount == length)) {\n return baseWrapperValue(array, this.__actions__);\n }\n var result = [];\n\n outer:\n while (length-- && resIndex < takeCount) {\n index += dir;\n\n var iterIndex = -1,\n value = array[index];\n\n while (++iterIndex < iterLength) {\n var data = iteratees[iterIndex],\n iteratee = data.iteratee,\n type = data.type,\n computed = iteratee(value);\n\n if (type == LAZY_MAP_FLAG) {\n value = computed;\n } else if (!computed) {\n if (type == LAZY_FILTER_FLAG) {\n continue outer;\n } else {\n break outer;\n }\n }\n }\n result[resIndex++] = value;\n }\n return result;\n }\n\n // Ensure `LazyWrapper` is an instance of `baseLodash`.\n LazyWrapper.prototype = baseCreate(baseLodash.prototype);\n LazyWrapper.prototype.constructor = LazyWrapper;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a hash object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function Hash(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n }\n\n /**\n * Removes all key-value entries from the hash.\n *\n * @private\n * @name clear\n * @memberOf Hash\n */\n function hashClear() {\n this.__data__ = nativeCreate ? nativeCreate(null) : {};\n this.size = 0;\n }\n\n /**\n * Removes `key` and its value from the hash.\n *\n * @private\n * @name delete\n * @memberOf Hash\n * @param {Object} hash The hash to modify.\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function hashDelete(key) {\n var result = this.has(key) && delete this.__data__[key];\n this.size -= result ? 1 : 0;\n return result;\n }\n\n /**\n * Gets the hash value for `key`.\n *\n * @private\n * @name get\n * @memberOf Hash\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function hashGet(key) {\n var data = this.__data__;\n if (nativeCreate) {\n var result = data[key];\n return result === HASH_UNDEFINED ? undefined : result;\n }\n return hasOwnProperty.call(data, key) ? data[key] : undefined;\n }\n\n /**\n * Checks if a hash value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Hash\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function hashHas(key) {\n var data = this.__data__;\n return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);\n }\n\n /**\n * Sets the hash `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Hash\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the hash instance.\n */\n function hashSet(key, value) {\n var data = this.__data__;\n this.size += this.has(key) ? 0 : 1;\n data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;\n return this;\n }\n\n // Add methods to `Hash`.\n Hash.prototype.clear = hashClear;\n Hash.prototype['delete'] = hashDelete;\n Hash.prototype.get = hashGet;\n Hash.prototype.has = hashHas;\n Hash.prototype.set = hashSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an list cache object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function ListCache(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n }\n\n /**\n * Removes all key-value entries from the list cache.\n *\n * @private\n * @name clear\n * @memberOf ListCache\n */\n function listCacheClear() {\n this.__data__ = [];\n this.size = 0;\n }\n\n /**\n * Removes `key` and its value from the list cache.\n *\n * @private\n * @name delete\n * @memberOf ListCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function listCacheDelete(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n return false;\n }\n var lastIndex = data.length - 1;\n if (index == lastIndex) {\n data.pop();\n } else {\n splice.call(data, index, 1);\n }\n --this.size;\n return true;\n }\n\n /**\n * Gets the list cache value for `key`.\n *\n * @private\n * @name get\n * @memberOf ListCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function listCacheGet(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n return index < 0 ? undefined : data[index][1];\n }\n\n /**\n * Checks if a list cache value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf ListCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function listCacheHas(key) {\n return assocIndexOf(this.__data__, key) > -1;\n }\n\n /**\n * Sets the list cache `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf ListCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the list cache instance.\n */\n function listCacheSet(key, value) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n ++this.size;\n data.push([key, value]);\n } else {\n data[index][1] = value;\n }\n return this;\n }\n\n // Add methods to `ListCache`.\n ListCache.prototype.clear = listCacheClear;\n ListCache.prototype['delete'] = listCacheDelete;\n ListCache.prototype.get = listCacheGet;\n ListCache.prototype.has = listCacheHas;\n ListCache.prototype.set = listCacheSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a map cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function MapCache(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n }\n\n /**\n * Removes all key-value entries from the map.\n *\n * @private\n * @name clear\n * @memberOf MapCache\n */\n function mapCacheClear() {\n this.size = 0;\n this.__data__ = {\n 'hash': new Hash,\n 'map': new (Map || ListCache),\n 'string': new Hash\n };\n }\n\n /**\n * Removes `key` and its value from the map.\n *\n * @private\n * @name delete\n * @memberOf MapCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function mapCacheDelete(key) {\n var result = getMapData(this, key)['delete'](key);\n this.size -= result ? 1 : 0;\n return result;\n }\n\n /**\n * Gets the map value for `key`.\n *\n * @private\n * @name get\n * @memberOf MapCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function mapCacheGet(key) {\n return getMapData(this, key).get(key);\n }\n\n /**\n * Checks if a map value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf MapCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function mapCacheHas(key) {\n return getMapData(this, key).has(key);\n }\n\n /**\n * Sets the map `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf MapCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the map cache instance.\n */\n function mapCacheSet(key, value) {\n var data = getMapData(this, key),\n size = data.size;\n\n data.set(key, value);\n this.size += data.size == size ? 0 : 1;\n return this;\n }\n\n // Add methods to `MapCache`.\n MapCache.prototype.clear = mapCacheClear;\n MapCache.prototype['delete'] = mapCacheDelete;\n MapCache.prototype.get = mapCacheGet;\n MapCache.prototype.has = mapCacheHas;\n MapCache.prototype.set = mapCacheSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n *\n * Creates an array cache object to store unique values.\n *\n * @private\n * @constructor\n * @param {Array} [values] The values to cache.\n */\n function SetCache(values) {\n var index = -1,\n length = values == null ? 0 : values.length;\n\n this.__data__ = new MapCache;\n while (++index < length) {\n this.add(values[index]);\n }\n }\n\n /**\n * Adds `value` to the array cache.\n *\n * @private\n * @name add\n * @memberOf SetCache\n * @alias push\n * @param {*} value The value to cache.\n * @returns {Object} Returns the cache instance.\n */\n function setCacheAdd(value) {\n this.__data__.set(value, HASH_UNDEFINED);\n return this;\n }\n\n /**\n * Checks if `value` is in the array cache.\n *\n * @private\n * @name has\n * @memberOf SetCache\n * @param {*} value The value to search for.\n * @returns {number} Returns `true` if `value` is found, else `false`.\n */\n function setCacheHas(value) {\n return this.__data__.has(value);\n }\n\n // Add methods to `SetCache`.\n SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;\n SetCache.prototype.has = setCacheHas;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a stack cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function Stack(entries) {\n var data = this.__data__ = new ListCache(entries);\n this.size = data.size;\n }\n\n /**\n * Removes all key-value entries from the stack.\n *\n * @private\n * @name clear\n * @memberOf Stack\n */\n function stackClear() {\n this.__data__ = new ListCache;\n this.size = 0;\n }\n\n /**\n * Removes `key` and its value from the stack.\n *\n * @private\n * @name delete\n * @memberOf Stack\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function stackDelete(key) {\n var data = this.__data__,\n result = data['delete'](key);\n\n this.size = data.size;\n return result;\n }\n\n /**\n * Gets the stack value for `key`.\n *\n * @private\n * @name get\n * @memberOf Stack\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function stackGet(key) {\n return this.__data__.get(key);\n }\n\n /**\n * Checks if a stack value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Stack\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function stackHas(key) {\n return this.__data__.has(key);\n }\n\n /**\n * Sets the stack `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Stack\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the stack cache instance.\n */\n function stackSet(key, value) {\n var data = this.__data__;\n if (data instanceof ListCache) {\n var pairs = data.__data__;\n if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {\n pairs.push([key, value]);\n this.size = ++data.size;\n return this;\n }\n data = this.__data__ = new MapCache(pairs);\n }\n data.set(key, value);\n this.size = data.size;\n return this;\n }\n\n // Add methods to `Stack`.\n Stack.prototype.clear = stackClear;\n Stack.prototype['delete'] = stackDelete;\n Stack.prototype.get = stackGet;\n Stack.prototype.has = stackHas;\n Stack.prototype.set = stackSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an array of the enumerable property names of the array-like `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @param {boolean} inherited Specify returning inherited property names.\n * @returns {Array} Returns the array of property names.\n */\n function arrayLikeKeys(value, inherited) {\n var isArr = isArray(value),\n isArg = !isArr && isArguments(value),\n isBuff = !isArr && !isArg && isBuffer(value),\n isType = !isArr && !isArg && !isBuff && isTypedArray(value),\n skipIndexes = isArr || isArg || isBuff || isType,\n result = skipIndexes ? baseTimes(value.length, String) : [],\n length = result.length;\n\n for (var key in value) {\n if ((inherited || hasOwnProperty.call(value, key)) &&\n !(skipIndexes && (\n // Safari 9 has enumerable `arguments.length` in strict mode.\n key == 'length' ||\n // Node.js 0.10 has enumerable non-index properties on buffers.\n (isBuff && (key == 'offset' || key == 'parent')) ||\n // PhantomJS 2 has enumerable non-index properties on typed arrays.\n (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||\n // Skip index properties.\n isIndex(key, length)\n ))) {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * A specialized version of `_.sample` for arrays.\n *\n * @private\n * @param {Array} array The array to sample.\n * @returns {*} Returns the random element.\n */\n function arraySample(array) {\n var length = array.length;\n return length ? array[baseRandom(0, length - 1)] : undefined;\n }\n\n /**\n * A specialized version of `_.sampleSize` for arrays.\n *\n * @private\n * @param {Array} array The array to sample.\n * @param {number} n The number of elements to sample.\n * @returns {Array} Returns the random elements.\n */\n function arraySampleSize(array, n) {\n return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length));\n }\n\n /**\n * A specialized version of `_.shuffle` for arrays.\n *\n * @private\n * @param {Array} array The array to shuffle.\n * @returns {Array} Returns the new shuffled array.\n */\n function arrayShuffle(array) {\n return shuffleSelf(copyArray(array));\n }\n\n /**\n * This function is like `assignValue` except that it doesn't assign\n * `undefined` values.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\n function assignMergeValue(object, key, value) {\n if ((value !== undefined && !eq(object[key], value)) ||\n (value === undefined && !(key in object))) {\n baseAssignValue(object, key, value);\n }\n }\n\n /**\n * Assigns `value` to `key` of `object` if the existing value is not equivalent\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\n function assignValue(object, key, value) {\n var objValue = object[key];\n if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||\n (value === undefined && !(key in object))) {\n baseAssignValue(object, key, value);\n }\n }\n\n /**\n * Gets the index at which the `key` is found in `array` of key-value pairs.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} key The key to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function assocIndexOf(array, key) {\n var length = array.length;\n while (length--) {\n if (eq(array[length][0], key)) {\n return length;\n }\n }\n return -1;\n }\n\n /**\n * Aggregates elements of `collection` on `accumulator` with keys transformed\n * by `iteratee` and values set by `setter`.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} setter The function to set `accumulator` values.\n * @param {Function} iteratee The iteratee to transform keys.\n * @param {Object} accumulator The initial aggregated object.\n * @returns {Function} Returns `accumulator`.\n */\n function baseAggregator(collection, setter, iteratee, accumulator) {\n baseEach(collection, function(value, key, collection) {\n setter(accumulator, value, iteratee(value), collection);\n });\n return accumulator;\n }\n\n /**\n * The base implementation of `_.assign` without support for multiple sources\n * or `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @returns {Object} Returns `object`.\n */\n function baseAssign(object, source) {\n return object && copyObject(source, keys(source), object);\n }\n\n /**\n * The base implementation of `_.assignIn` without support for multiple sources\n * or `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @returns {Object} Returns `object`.\n */\n function baseAssignIn(object, source) {\n return object && copyObject(source, keysIn(source), object);\n }\n\n /**\n * The base implementation of `assignValue` and `assignMergeValue` without\n * value checks.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\n function baseAssignValue(object, key, value) {\n if (key == '__proto__' && defineProperty) {\n defineProperty(object, key, {\n 'configurable': true,\n 'enumerable': true,\n 'value': value,\n 'writable': true\n });\n } else {\n object[key] = value;\n }\n }\n\n /**\n * The base implementation of `_.at` without support for individual paths.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {string[]} paths The property paths to pick.\n * @returns {Array} Returns the picked elements.\n */\n function baseAt(object, paths) {\n var index = -1,\n length = paths.length,\n result = Array(length),\n skip = object == null;\n\n while (++index < length) {\n result[index] = skip ? undefined : get(object, paths[index]);\n }\n return result;\n }\n\n /**\n * The base implementation of `_.clamp` which doesn't coerce arguments.\n *\n * @private\n * @param {number} number The number to clamp.\n * @param {number} [lower] The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the clamped number.\n */\n function baseClamp(number, lower, upper) {\n if (number === number) {\n if (upper !== undefined) {\n number = number <= upper ? number : upper;\n }\n if (lower !== undefined) {\n number = number >= lower ? number : lower;\n }\n }\n return number;\n }\n\n /**\n * The base implementation of `_.clone` and `_.cloneDeep` which tracks\n * traversed objects.\n *\n * @private\n * @param {*} value The value to clone.\n * @param {boolean} bitmask The bitmask flags.\n * 1 - Deep clone\n * 2 - Flatten inherited properties\n * 4 - Clone symbols\n * @param {Function} [customizer] The function to customize cloning.\n * @param {string} [key] The key of `value`.\n * @param {Object} [object] The parent object of `value`.\n * @param {Object} [stack] Tracks traversed objects and their clone counterparts.\n * @returns {*} Returns the cloned value.\n */\n function baseClone(value, bitmask, customizer, key, object, stack) {\n var result,\n isDeep = bitmask & CLONE_DEEP_FLAG,\n isFlat = bitmask & CLONE_FLAT_FLAG,\n isFull = bitmask & CLONE_SYMBOLS_FLAG;\n\n if (customizer) {\n result = object ? customizer(value, key, object, stack) : customizer(value);\n }\n if (result !== undefined) {\n return result;\n }\n if (!isObject(value)) {\n return value;\n }\n var isArr = isArray(value);\n if (isArr) {\n result = initCloneArray(value);\n if (!isDeep) {\n return copyArray(value, result);\n }\n } else {\n var tag = getTag(value),\n isFunc = tag == funcTag || tag == genTag;\n\n if (isBuffer(value)) {\n return cloneBuffer(value, isDeep);\n }\n if (tag == objectTag || tag == argsTag || (isFunc && !object)) {\n result = (isFlat || isFunc) ? {} : initCloneObject(value);\n if (!isDeep) {\n return isFlat\n ? copySymbolsIn(value, baseAssignIn(result, value))\n : copySymbols(value, baseAssign(result, value));\n }\n } else {\n if (!cloneableTags[tag]) {\n return object ? value : {};\n }\n result = initCloneByTag(value, tag, isDeep);\n }\n }\n // Check for circular references and return its corresponding clone.\n stack || (stack = new Stack);\n var stacked = stack.get(value);\n if (stacked) {\n return stacked;\n }\n stack.set(value, result);\n\n if (isSet(value)) {\n value.forEach(function(subValue) {\n result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack));\n });\n } else if (isMap(value)) {\n value.forEach(function(subValue, key) {\n result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack));\n });\n }\n\n var keysFunc = isFull\n ? (isFlat ? getAllKeysIn : getAllKeys)\n : (isFlat ? keysIn : keys);\n\n var props = isArr ? undefined : keysFunc(value);\n arrayEach(props || value, function(subValue, key) {\n if (props) {\n key = subValue;\n subValue = value[key];\n }\n // Recursively populate clone (susceptible to call stack limits).\n assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));\n });\n return result;\n }\n\n /**\n * The base implementation of `_.conforms` which doesn't clone `source`.\n *\n * @private\n * @param {Object} source The object of property predicates to conform to.\n * @returns {Function} Returns the new spec function.\n */\n function baseConforms(source) {\n var props = keys(source);\n return function(object) {\n return baseConformsTo(object, source, props);\n };\n }\n\n /**\n * The base implementation of `_.conformsTo` which accepts `props` to check.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property predicates to conform to.\n * @returns {boolean} Returns `true` if `object` conforms, else `false`.\n */\n function baseConformsTo(object, source, props) {\n var length = props.length;\n if (object == null) {\n return !length;\n }\n object = Object(object);\n while (length--) {\n var key = props[length],\n predicate = source[key],\n value = object[key];\n\n if ((value === undefined && !(key in object)) || !predicate(value)) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * The base implementation of `_.delay` and `_.defer` which accepts `args`\n * to provide to `func`.\n *\n * @private\n * @param {Function} func The function to delay.\n * @param {number} wait The number of milliseconds to delay invocation.\n * @param {Array} args The arguments to provide to `func`.\n * @returns {number|Object} Returns the timer id or timeout object.\n */\n function baseDelay(func, wait, args) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n return setTimeout(function() { func.apply(undefined, args); }, wait);\n }\n\n /**\n * The base implementation of methods like `_.difference` without support\n * for excluding multiple arrays or iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Array} values The values to exclude.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n */\n function baseDifference(array, values, iteratee, comparator) {\n var index = -1,\n includes = arrayIncludes,\n isCommon = true,\n length = array.length,\n result = [],\n valuesLength = values.length;\n\n if (!length) {\n return result;\n }\n if (iteratee) {\n values = arrayMap(values, baseUnary(iteratee));\n }\n if (comparator) {\n includes = arrayIncludesWith;\n isCommon = false;\n }\n else if (values.length >= LARGE_ARRAY_SIZE) {\n includes = cacheHas;\n isCommon = false;\n values = new SetCache(values);\n }\n outer:\n while (++index < length) {\n var value = array[index],\n computed = iteratee == null ? value : iteratee(value);\n\n value = (comparator || value !== 0) ? value : 0;\n if (isCommon && computed === computed) {\n var valuesIndex = valuesLength;\n while (valuesIndex--) {\n if (values[valuesIndex] === computed) {\n continue outer;\n }\n }\n result.push(value);\n }\n else if (!includes(values, computed, comparator)) {\n result.push(value);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.forEach` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n */\n var baseEach = createBaseEach(baseForOwn);\n\n /**\n * The base implementation of `_.forEachRight` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n */\n var baseEachRight = createBaseEach(baseForOwnRight, true);\n\n /**\n * The base implementation of `_.every` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if all elements pass the predicate check,\n * else `false`\n */\n function baseEvery(collection, predicate) {\n var result = true;\n baseEach(collection, function(value, index, collection) {\n result = !!predicate(value, index, collection);\n return result;\n });\n return result;\n }\n\n /**\n * The base implementation of methods like `_.max` and `_.min` which accepts a\n * `comparator` to determine the extremum value.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The iteratee invoked per iteration.\n * @param {Function} comparator The comparator used to compare values.\n * @returns {*} Returns the extremum value.\n */\n function baseExtremum(array, iteratee, comparator) {\n var index = -1,\n length = array.length;\n\n while (++index < length) {\n var value = array[index],\n current = iteratee(value);\n\n if (current != null && (computed === undefined\n ? (current === current && !isSymbol(current))\n : comparator(current, computed)\n )) {\n var computed = current,\n result = value;\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.fill` without an iteratee call guard.\n *\n * @private\n * @param {Array} array The array to fill.\n * @param {*} value The value to fill `array` with.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns `array`.\n */\n function baseFill(array, value, start, end) {\n var length = array.length;\n\n start = toInteger(start);\n if (start < 0) {\n start = -start > length ? 0 : (length + start);\n }\n end = (end === undefined || end > length) ? length : toInteger(end);\n if (end < 0) {\n end += length;\n }\n end = start > end ? 0 : toLength(end);\n while (start < end) {\n array[start++] = value;\n }\n return array;\n }\n\n /**\n * The base implementation of `_.filter` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n */\n function baseFilter(collection, predicate) {\n var result = [];\n baseEach(collection, function(value, index, collection) {\n if (predicate(value, index, collection)) {\n result.push(value);\n }\n });\n return result;\n }\n\n /**\n * The base implementation of `_.flatten` with support for restricting flattening.\n *\n * @private\n * @param {Array} array The array to flatten.\n * @param {number} depth The maximum recursion depth.\n * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.\n * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.\n * @param {Array} [result=[]] The initial result value.\n * @returns {Array} Returns the new flattened array.\n */\n function baseFlatten(array, depth, predicate, isStrict, result) {\n var index = -1,\n length = array.length;\n\n predicate || (predicate = isFlattenable);\n result || (result = []);\n\n while (++index < length) {\n var value = array[index];\n if (depth > 0 && predicate(value)) {\n if (depth > 1) {\n // Recursively flatten arrays (susceptible to call stack limits).\n baseFlatten(value, depth - 1, predicate, isStrict, result);\n } else {\n arrayPush(result, value);\n }\n } else if (!isStrict) {\n result[result.length] = value;\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `baseForOwn` which iterates over `object`\n * properties returned by `keysFunc` and invokes `iteratee` for each property.\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\n var baseFor = createBaseFor();\n\n /**\n * This function is like `baseFor` except that it iterates over properties\n * in the opposite order.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\n var baseForRight = createBaseFor(true);\n\n /**\n * The base implementation of `_.forOwn` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Object} Returns `object`.\n */\n function baseForOwn(object, iteratee) {\n return object && baseFor(object, iteratee, keys);\n }\n\n /**\n * The base implementation of `_.forOwnRight` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Object} Returns `object`.\n */\n function baseForOwnRight(object, iteratee) {\n return object && baseForRight(object, iteratee, keys);\n }\n\n /**\n * The base implementation of `_.functions` which creates an array of\n * `object` function property names filtered from `props`.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Array} props The property names to filter.\n * @returns {Array} Returns the function names.\n */\n function baseFunctions(object, props) {\n return arrayFilter(props, function(key) {\n return isFunction(object[key]);\n });\n }\n\n /**\n * The base implementation of `_.get` without support for default values.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @returns {*} Returns the resolved value.\n */\n function baseGet(object, path) {\n path = castPath(path, object);\n\n var index = 0,\n length = path.length;\n\n while (object != null && index < length) {\n object = object[toKey(path[index++])];\n }\n return (index && index == length) ? object : undefined;\n }\n\n /**\n * The base implementation of `getAllKeys` and `getAllKeysIn` which uses\n * `keysFunc` and `symbolsFunc` to get the enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @param {Function} symbolsFunc The function to get the symbols of `object`.\n * @returns {Array} Returns the array of property names and symbols.\n */\n function baseGetAllKeys(object, keysFunc, symbolsFunc) {\n var result = keysFunc(object);\n return isArray(object) ? result : arrayPush(result, symbolsFunc(object));\n }\n\n /**\n * The base implementation of `getTag` without fallbacks for buggy environments.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\n function baseGetTag(value) {\n if (value == null) {\n return value === undefined ? undefinedTag : nullTag;\n }\n return (symToStringTag && symToStringTag in Object(value))\n ? getRawTag(value)\n : objectToString(value);\n }\n\n /**\n * The base implementation of `_.gt` which doesn't coerce arguments.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than `other`,\n * else `false`.\n */\n function baseGt(value, other) {\n return value > other;\n }\n\n /**\n * The base implementation of `_.has` without support for deep paths.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {Array|string} key The key to check.\n * @returns {boolean} Returns `true` if `key` exists, else `false`.\n */\n function baseHas(object, key) {\n return object != null && hasOwnProperty.call(object, key);\n }\n\n /**\n * The base implementation of `_.hasIn` without support for deep paths.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {Array|string} key The key to check.\n * @returns {boolean} Returns `true` if `key` exists, else `false`.\n */\n function baseHasIn(object, key) {\n return object != null && key in Object(object);\n }\n\n /**\n * The base implementation of `_.inRange` which doesn't coerce arguments.\n *\n * @private\n * @param {number} number The number to check.\n * @param {number} start The start of the range.\n * @param {number} end The end of the range.\n * @returns {boolean} Returns `true` if `number` is in the range, else `false`.\n */\n function baseInRange(number, start, end) {\n return number >= nativeMin(start, end) && number < nativeMax(start, end);\n }\n\n /**\n * The base implementation of methods like `_.intersection`, without support\n * for iteratee shorthands, that accepts an array of arrays to inspect.\n *\n * @private\n * @param {Array} arrays The arrays to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of shared values.\n */\n function baseIntersection(arrays, iteratee, comparator) {\n var includes = comparator ? arrayIncludesWith : arrayIncludes,\n length = arrays[0].length,\n othLength = arrays.length,\n othIndex = othLength,\n caches = Array(othLength),\n maxLength = Infinity,\n result = [];\n\n while (othIndex--) {\n var array = arrays[othIndex];\n if (othIndex && iteratee) {\n array = arrayMap(array, baseUnary(iteratee));\n }\n maxLength = nativeMin(array.length, maxLength);\n caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120))\n ? new SetCache(othIndex && array)\n : undefined;\n }\n array = arrays[0];\n\n var index = -1,\n seen = caches[0];\n\n outer:\n while (++index < length && result.length < maxLength) {\n var value = array[index],\n computed = iteratee ? iteratee(value) : value;\n\n value = (comparator || value !== 0) ? value : 0;\n if (!(seen\n ? cacheHas(seen, computed)\n : includes(result, computed, comparator)\n )) {\n othIndex = othLength;\n while (--othIndex) {\n var cache = caches[othIndex];\n if (!(cache\n ? cacheHas(cache, computed)\n : includes(arrays[othIndex], computed, comparator))\n ) {\n continue outer;\n }\n }\n if (seen) {\n seen.push(computed);\n }\n result.push(value);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.invert` and `_.invertBy` which inverts\n * `object` with values transformed by `iteratee` and set by `setter`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} setter The function to set `accumulator` values.\n * @param {Function} iteratee The iteratee to transform values.\n * @param {Object} accumulator The initial inverted object.\n * @returns {Function} Returns `accumulator`.\n */\n function baseInverter(object, setter, iteratee, accumulator) {\n baseForOwn(object, function(value, key, object) {\n setter(accumulator, iteratee(value), key, object);\n });\n return accumulator;\n }\n\n /**\n * The base implementation of `_.invoke` without support for individual\n * method arguments.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the method to invoke.\n * @param {Array} args The arguments to invoke the method with.\n * @returns {*} Returns the result of the invoked method.\n */\n function baseInvoke(object, path, args) {\n path = castPath(path, object);\n object = parent(object, path);\n var func = object == null ? object : object[toKey(last(path))];\n return func == null ? undefined : apply(func, object, args);\n }\n\n /**\n * The base implementation of `_.isArguments`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n */\n function baseIsArguments(value) {\n return isObjectLike(value) && baseGetTag(value) == argsTag;\n }\n\n /**\n * The base implementation of `_.isArrayBuffer` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.\n */\n function baseIsArrayBuffer(value) {\n return isObjectLike(value) && baseGetTag(value) == arrayBufferTag;\n }\n\n /**\n * The base implementation of `_.isDate` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a date object, else `false`.\n */\n function baseIsDate(value) {\n return isObjectLike(value) && baseGetTag(value) == dateTag;\n }\n\n /**\n * The base implementation of `_.isEqual` which supports partial comparisons\n * and tracks traversed objects.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {boolean} bitmask The bitmask flags.\n * 1 - Unordered comparison\n * 2 - Partial comparison\n * @param {Function} [customizer] The function to customize comparisons.\n * @param {Object} [stack] Tracks traversed `value` and `other` objects.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n */\n function baseIsEqual(value, other, bitmask, customizer, stack) {\n if (value === other) {\n return true;\n }\n if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {\n return value !== value && other !== other;\n }\n return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);\n }\n\n /**\n * A specialized version of `baseIsEqual` for arrays and objects which performs\n * deep comparisons and tracks traversed objects enabling objects with circular\n * references to be compared.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} [stack] Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\n function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {\n var objIsArr = isArray(object),\n othIsArr = isArray(other),\n objTag = objIsArr ? arrayTag : getTag(object),\n othTag = othIsArr ? arrayTag : getTag(other);\n\n objTag = objTag == argsTag ? objectTag : objTag;\n othTag = othTag == argsTag ? objectTag : othTag;\n\n var objIsObj = objTag == objectTag,\n othIsObj = othTag == objectTag,\n isSameTag = objTag == othTag;\n\n if (isSameTag && isBuffer(object)) {\n if (!isBuffer(other)) {\n return false;\n }\n objIsArr = true;\n objIsObj = false;\n }\n if (isSameTag && !objIsObj) {\n stack || (stack = new Stack);\n return (objIsArr || isTypedArray(object))\n ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)\n : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);\n }\n if (!(bitmask & COMPARE_PARTIAL_FLAG)) {\n var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),\n othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');\n\n if (objIsWrapped || othIsWrapped) {\n var objUnwrapped = objIsWrapped ? object.value() : object,\n othUnwrapped = othIsWrapped ? other.value() : other;\n\n stack || (stack = new Stack);\n return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);\n }\n }\n if (!isSameTag) {\n return false;\n }\n stack || (stack = new Stack);\n return equalObjects(object, other, bitmask, customizer, equalFunc, stack);\n }\n\n /**\n * The base implementation of `_.isMap` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n */\n function baseIsMap(value) {\n return isObjectLike(value) && getTag(value) == mapTag;\n }\n\n /**\n * The base implementation of `_.isMatch` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @param {Array} matchData The property names, values, and compare flags to match.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n */\n function baseIsMatch(object, source, matchData, customizer) {\n var index = matchData.length,\n length = index,\n noCustomizer = !customizer;\n\n if (object == null) {\n return !length;\n }\n object = Object(object);\n while (index--) {\n var data = matchData[index];\n if ((noCustomizer && data[2])\n ? data[1] !== object[data[0]]\n : !(data[0] in object)\n ) {\n return false;\n }\n }\n while (++index < length) {\n data = matchData[index];\n var key = data[0],\n objValue = object[key],\n srcValue = data[1];\n\n if (noCustomizer && data[2]) {\n if (objValue === undefined && !(key in object)) {\n return false;\n }\n } else {\n var stack = new Stack;\n if (customizer) {\n var result = customizer(objValue, srcValue, key, object, source, stack);\n }\n if (!(result === undefined\n ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack)\n : result\n )) {\n return false;\n }\n }\n }\n return true;\n }\n\n /**\n * The base implementation of `_.isNative` without bad shim checks.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n */\n function baseIsNative(value) {\n if (!isObject(value) || isMasked(value)) {\n return false;\n }\n var pattern = isFunction(value) ? reIsNative : reIsHostCtor;\n return pattern.test(toSource(value));\n }\n\n /**\n * The base implementation of `_.isRegExp` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.\n */\n function baseIsRegExp(value) {\n return isObjectLike(value) && baseGetTag(value) == regexpTag;\n }\n\n /**\n * The base implementation of `_.isSet` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n */\n function baseIsSet(value) {\n return isObjectLike(value) && getTag(value) == setTag;\n }\n\n /**\n * The base implementation of `_.isTypedArray` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n */\n function baseIsTypedArray(value) {\n return isObjectLike(value) &&\n isLength(value.length) && !!typedArrayTags[baseGetTag(value)];\n }\n\n /**\n * The base implementation of `_.iteratee`.\n *\n * @private\n * @param {*} [value=_.identity] The value to convert to an iteratee.\n * @returns {Function} Returns the iteratee.\n */\n function baseIteratee(value) {\n // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.\n // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.\n if (typeof value == 'function') {\n return value;\n }\n if (value == null) {\n return identity;\n }\n if (typeof value == 'object') {\n return isArray(value)\n ? baseMatchesProperty(value[0], value[1])\n : baseMatches(value);\n }\n return property(value);\n }\n\n /**\n * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\n function baseKeys(object) {\n if (!isPrototype(object)) {\n return nativeKeys(object);\n }\n var result = [];\n for (var key in Object(object)) {\n if (hasOwnProperty.call(object, key) && key != 'constructor') {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\n function baseKeysIn(object) {\n if (!isObject(object)) {\n return nativeKeysIn(object);\n }\n var isProto = isPrototype(object),\n result = [];\n\n for (var key in object) {\n if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.lt` which doesn't coerce arguments.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than `other`,\n * else `false`.\n */\n function baseLt(value, other) {\n return value < other;\n }\n\n /**\n * The base implementation of `_.map` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n */\n function baseMap(collection, iteratee) {\n var index = -1,\n result = isArrayLike(collection) ? Array(collection.length) : [];\n\n baseEach(collection, function(value, key, collection) {\n result[++index] = iteratee(value, key, collection);\n });\n return result;\n }\n\n /**\n * The base implementation of `_.matches` which doesn't clone `source`.\n *\n * @private\n * @param {Object} source The object of property values to match.\n * @returns {Function} Returns the new spec function.\n */\n function baseMatches(source) {\n var matchData = getMatchData(source);\n if (matchData.length == 1 && matchData[0][2]) {\n return matchesStrictComparable(matchData[0][0], matchData[0][1]);\n }\n return function(object) {\n return object === source || baseIsMatch(object, source, matchData);\n };\n }\n\n /**\n * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.\n *\n * @private\n * @param {string} path The path of the property to get.\n * @param {*} srcValue The value to match.\n * @returns {Function} Returns the new spec function.\n */\n function baseMatchesProperty(path, srcValue) {\n if (isKey(path) && isStrictComparable(srcValue)) {\n return matchesStrictComparable(toKey(path), srcValue);\n }\n return function(object) {\n var objValue = get(object, path);\n return (objValue === undefined && objValue === srcValue)\n ? hasIn(object, path)\n : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG);\n };\n }\n\n /**\n * The base implementation of `_.merge` without support for multiple sources.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {number} srcIndex The index of `source`.\n * @param {Function} [customizer] The function to customize merged values.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n */\n function baseMerge(object, source, srcIndex, customizer, stack) {\n if (object === source) {\n return;\n }\n baseFor(source, function(srcValue, key) {\n stack || (stack = new Stack);\n if (isObject(srcValue)) {\n baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);\n }\n else {\n var newValue = customizer\n ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack)\n : undefined;\n\n if (newValue === undefined) {\n newValue = srcValue;\n }\n assignMergeValue(object, key, newValue);\n }\n }, keysIn);\n }\n\n /**\n * A specialized version of `baseMerge` for arrays and objects which performs\n * deep merges and tracks traversed objects enabling objects with circular\n * references to be merged.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {string} key The key of the value to merge.\n * @param {number} srcIndex The index of `source`.\n * @param {Function} mergeFunc The function to merge values.\n * @param {Function} [customizer] The function to customize assigned values.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n */\n function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {\n var objValue = safeGet(object, key),\n srcValue = safeGet(source, key),\n stacked = stack.get(srcValue);\n\n if (stacked) {\n assignMergeValue(object, key, stacked);\n return;\n }\n var newValue = customizer\n ? customizer(objValue, srcValue, (key + ''), object, source, stack)\n : undefined;\n\n var isCommon = newValue === undefined;\n\n if (isCommon) {\n var isArr = isArray(srcValue),\n isBuff = !isArr && isBuffer(srcValue),\n isTyped = !isArr && !isBuff && isTypedArray(srcValue);\n\n newValue = srcValue;\n if (isArr || isBuff || isTyped) {\n if (isArray(objValue)) {\n newValue = objValue;\n }\n else if (isArrayLikeObject(objValue)) {\n newValue = copyArray(objValue);\n }\n else if (isBuff) {\n isCommon = false;\n newValue = cloneBuffer(srcValue, true);\n }\n else if (isTyped) {\n isCommon = false;\n newValue = cloneTypedArray(srcValue, true);\n }\n else {\n newValue = [];\n }\n }\n else if (isPlainObject(srcValue) || isArguments(srcValue)) {\n newValue = objValue;\n if (isArguments(objValue)) {\n newValue = toPlainObject(objValue);\n }\n else if (!isObject(objValue) || isFunction(objValue)) {\n newValue = initCloneObject(srcValue);\n }\n }\n else {\n isCommon = false;\n }\n }\n if (isCommon) {\n // Recursively merge objects and arrays (susceptible to call stack limits).\n stack.set(srcValue, newValue);\n mergeFunc(newValue, srcValue, srcIndex, customizer, stack);\n stack['delete'](srcValue);\n }\n assignMergeValue(object, key, newValue);\n }\n\n /**\n * The base implementation of `_.nth` which doesn't coerce arguments.\n *\n * @private\n * @param {Array} array The array to query.\n * @param {number} n The index of the element to return.\n * @returns {*} Returns the nth element of `array`.\n */\n function baseNth(array, n) {\n var length = array.length;\n if (!length) {\n return;\n }\n n += n < 0 ? length : 0;\n return isIndex(n, length) ? array[n] : undefined;\n }\n\n /**\n * The base implementation of `_.orderBy` without param guards.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.\n * @param {string[]} orders The sort orders of `iteratees`.\n * @returns {Array} Returns the new sorted array.\n */\n function baseOrderBy(collection, iteratees, orders) {\n var index = -1;\n iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(getIteratee()));\n\n var result = baseMap(collection, function(value, key, collection) {\n var criteria = arrayMap(iteratees, function(iteratee) {\n return iteratee(value);\n });\n return { 'criteria': criteria, 'index': ++index, 'value': value };\n });\n\n return baseSortBy(result, function(object, other) {\n return compareMultiple(object, other, orders);\n });\n }\n\n /**\n * The base implementation of `_.pick` without support for individual\n * property identifiers.\n *\n * @private\n * @param {Object} object The source object.\n * @param {string[]} paths The property paths to pick.\n * @returns {Object} Returns the new object.\n */\n function basePick(object, paths) {\n return basePickBy(object, paths, function(value, path) {\n return hasIn(object, path);\n });\n }\n\n /**\n * The base implementation of `_.pickBy` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The source object.\n * @param {string[]} paths The property paths to pick.\n * @param {Function} predicate The function invoked per property.\n * @returns {Object} Returns the new object.\n */\n function basePickBy(object, paths, predicate) {\n var index = -1,\n length = paths.length,\n result = {};\n\n while (++index < length) {\n var path = paths[index],\n value = baseGet(object, path);\n\n if (predicate(value, path)) {\n baseSet(result, castPath(path, object), value);\n }\n }\n return result;\n }\n\n /**\n * A specialized version of `baseProperty` which supports deep paths.\n *\n * @private\n * @param {Array|string} path The path of the property to get.\n * @returns {Function} Returns the new accessor function.\n */\n function basePropertyDeep(path) {\n return function(object) {\n return baseGet(object, path);\n };\n }\n\n /**\n * The base implementation of `_.pullAllBy` without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns `array`.\n */\n function basePullAll(array, values, iteratee, comparator) {\n var indexOf = comparator ? baseIndexOfWith : baseIndexOf,\n index = -1,\n length = values.length,\n seen = array;\n\n if (array === values) {\n values = copyArray(values);\n }\n if (iteratee) {\n seen = arrayMap(array, baseUnary(iteratee));\n }\n while (++index < length) {\n var fromIndex = 0,\n value = values[index],\n computed = iteratee ? iteratee(value) : value;\n\n while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) {\n if (seen !== array) {\n splice.call(seen, fromIndex, 1);\n }\n splice.call(array, fromIndex, 1);\n }\n }\n return array;\n }\n\n /**\n * The base implementation of `_.pullAt` without support for individual\n * indexes or capturing the removed elements.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {number[]} indexes The indexes of elements to remove.\n * @returns {Array} Returns `array`.\n */\n function basePullAt(array, indexes) {\n var length = array ? indexes.length : 0,\n lastIndex = length - 1;\n\n while (length--) {\n var index = indexes[length];\n if (length == lastIndex || index !== previous) {\n var previous = index;\n if (isIndex(index)) {\n splice.call(array, index, 1);\n } else {\n baseUnset(array, index);\n }\n }\n }\n return array;\n }\n\n /**\n * The base implementation of `_.random` without support for returning\n * floating-point numbers.\n *\n * @private\n * @param {number} lower The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the random number.\n */\n function baseRandom(lower, upper) {\n return lower + nativeFloor(nativeRandom() * (upper - lower + 1));\n }\n\n /**\n * The base implementation of `_.range` and `_.rangeRight` which doesn't\n * coerce arguments.\n *\n * @private\n * @param {number} start The start of the range.\n * @param {number} end The end of the range.\n * @param {number} step The value to increment or decrement by.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Array} Returns the range of numbers.\n */\n function baseRange(start, end, step, fromRight) {\n var index = -1,\n length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),\n result = Array(length);\n\n while (length--) {\n result[fromRight ? length : ++index] = start;\n start += step;\n }\n return result;\n }\n\n /**\n * The base implementation of `_.repeat` which doesn't coerce arguments.\n *\n * @private\n * @param {string} string The string to repeat.\n * @param {number} n The number of times to repeat the string.\n * @returns {string} Returns the repeated string.\n */\n function baseRepeat(string, n) {\n var result = '';\n if (!string || n < 1 || n > MAX_SAFE_INTEGER) {\n return result;\n }\n // Leverage the exponentiation by squaring algorithm for a faster repeat.\n // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.\n do {\n if (n % 2) {\n result += string;\n }\n n = nativeFloor(n / 2);\n if (n) {\n string += string;\n }\n } while (n);\n\n return result;\n }\n\n /**\n * The base implementation of `_.rest` which doesn't validate or coerce arguments.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n */\n function baseRest(func, start) {\n return setToString(overRest(func, start, identity), func + '');\n }\n\n /**\n * The base implementation of `_.sample`.\n *\n * @private\n * @param {Array|Object} collection The collection to sample.\n * @returns {*} Returns the random element.\n */\n function baseSample(collection) {\n return arraySample(values(collection));\n }\n\n /**\n * The base implementation of `_.sampleSize` without param guards.\n *\n * @private\n * @param {Array|Object} collection The collection to sample.\n * @param {number} n The number of elements to sample.\n * @returns {Array} Returns the random elements.\n */\n function baseSampleSize(collection, n) {\n var array = values(collection);\n return shuffleSelf(array, baseClamp(n, 0, array.length));\n }\n\n /**\n * The base implementation of `_.set`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @param {Function} [customizer] The function to customize path creation.\n * @returns {Object} Returns `object`.\n */\n function baseSet(object, path, value, customizer) {\n if (!isObject(object)) {\n return object;\n }\n path = castPath(path, object);\n\n var index = -1,\n length = path.length,\n lastIndex = length - 1,\n nested = object;\n\n while (nested != null && ++index < length) {\n var key = toKey(path[index]),\n newValue = value;\n\n if (index != lastIndex) {\n var objValue = nested[key];\n newValue = customizer ? customizer(objValue, key, nested) : undefined;\n if (newValue === undefined) {\n newValue = isObject(objValue)\n ? objValue\n : (isIndex(path[index + 1]) ? [] : {});\n }\n }\n assignValue(nested, key, newValue);\n nested = nested[key];\n }\n return object;\n }\n\n /**\n * The base implementation of `setData` without support for hot loop shorting.\n *\n * @private\n * @param {Function} func The function to associate metadata with.\n * @param {*} data The metadata.\n * @returns {Function} Returns `func`.\n */\n var baseSetData = !metaMap ? identity : function(func, data) {\n metaMap.set(func, data);\n return func;\n };\n\n /**\n * The base implementation of `setToString` without support for hot loop shorting.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\n var baseSetToString = !defineProperty ? identity : function(func, string) {\n return defineProperty(func, 'toString', {\n 'configurable': true,\n 'enumerable': false,\n 'value': constant(string),\n 'writable': true\n });\n };\n\n /**\n * The base implementation of `_.shuffle`.\n *\n * @private\n * @param {Array|Object} collection The collection to shuffle.\n * @returns {Array} Returns the new shuffled array.\n */\n function baseShuffle(collection) {\n return shuffleSelf(values(collection));\n }\n\n /**\n * The base implementation of `_.slice` without an iteratee call guard.\n *\n * @private\n * @param {Array} array The array to slice.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the slice of `array`.\n */\n function baseSlice(array, start, end) {\n var index = -1,\n length = array.length;\n\n if (start < 0) {\n start = -start > length ? 0 : (length + start);\n }\n end = end > length ? length : end;\n if (end < 0) {\n end += length;\n }\n length = start > end ? 0 : ((end - start) >>> 0);\n start >>>= 0;\n\n var result = Array(length);\n while (++index < length) {\n result[index] = array[index + start];\n }\n return result;\n }\n\n /**\n * The base implementation of `_.some` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n */\n function baseSome(collection, predicate) {\n var result;\n\n baseEach(collection, function(value, index, collection) {\n result = predicate(value, index, collection);\n return !result;\n });\n return !!result;\n }\n\n /**\n * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which\n * performs a binary search of `array` to determine the index at which `value`\n * should be inserted into `array` in order to maintain its sort order.\n *\n * @private\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {boolean} [retHighest] Specify returning the highest qualified index.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n */\n function baseSortedIndex(array, value, retHighest) {\n var low = 0,\n high = array == null ? low : array.length;\n\n if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {\n while (low < high) {\n var mid = (low + high) >>> 1,\n computed = array[mid];\n\n if (computed !== null && !isSymbol(computed) &&\n (retHighest ? (computed <= value) : (computed < value))) {\n low = mid + 1;\n } else {\n high = mid;\n }\n }\n return high;\n }\n return baseSortedIndexBy(array, value, identity, retHighest);\n }\n\n /**\n * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy`\n * which invokes `iteratee` for `value` and each element of `array` to compute\n * their sort ranking. The iteratee is invoked with one argument; (value).\n *\n * @private\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {Function} iteratee The iteratee invoked per element.\n * @param {boolean} [retHighest] Specify returning the highest qualified index.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n */\n function baseSortedIndexBy(array, value, iteratee, retHighest) {\n value = iteratee(value);\n\n var low = 0,\n high = array == null ? 0 : array.length,\n valIsNaN = value !== value,\n valIsNull = value === null,\n valIsSymbol = isSymbol(value),\n valIsUndefined = value === undefined;\n\n while (low < high) {\n var mid = nativeFloor((low + high) / 2),\n computed = iteratee(array[mid]),\n othIsDefined = computed !== undefined,\n othIsNull = computed === null,\n othIsReflexive = computed === computed,\n othIsSymbol = isSymbol(computed);\n\n if (valIsNaN) {\n var setLow = retHighest || othIsReflexive;\n } else if (valIsUndefined) {\n setLow = othIsReflexive && (retHighest || othIsDefined);\n } else if (valIsNull) {\n setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull);\n } else if (valIsSymbol) {\n setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol);\n } else if (othIsNull || othIsSymbol) {\n setLow = false;\n } else {\n setLow = retHighest ? (computed <= value) : (computed < value);\n }\n if (setLow) {\n low = mid + 1;\n } else {\n high = mid;\n }\n }\n return nativeMin(high, MAX_ARRAY_INDEX);\n }\n\n /**\n * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without\n * support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n */\n function baseSortedUniq(array, iteratee) {\n var index = -1,\n length = array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index],\n computed = iteratee ? iteratee(value) : value;\n\n if (!index || !eq(computed, seen)) {\n var seen = computed;\n result[resIndex++] = value === 0 ? 0 : value;\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.toNumber` which doesn't ensure correct\n * conversions of binary, hexadecimal, or octal string values.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n */\n function baseToNumber(value) {\n if (typeof value == 'number') {\n return value;\n }\n if (isSymbol(value)) {\n return NAN;\n }\n return +value;\n }\n\n /**\n * The base implementation of `_.toString` which doesn't convert nullish\n * values to empty strings.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {string} Returns the string.\n */\n function baseToString(value) {\n // Exit early for strings to avoid a performance hit in some environments.\n if (typeof value == 'string') {\n return value;\n }\n if (isArray(value)) {\n // Recursively convert values (susceptible to call stack limits).\n return arrayMap(value, baseToString) + '';\n }\n if (isSymbol(value)) {\n return symbolToString ? symbolToString.call(value) : '';\n }\n var result = (value + '');\n return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n }\n\n /**\n * The base implementation of `_.uniqBy` without support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n */\n function baseUniq(array, iteratee, comparator) {\n var index = -1,\n includes = arrayIncludes,\n length = array.length,\n isCommon = true,\n result = [],\n seen = result;\n\n if (comparator) {\n isCommon = false;\n includes = arrayIncludesWith;\n }\n else if (length >= LARGE_ARRAY_SIZE) {\n var set = iteratee ? null : createSet(array);\n if (set) {\n return setToArray(set);\n }\n isCommon = false;\n includes = cacheHas;\n seen = new SetCache;\n }\n else {\n seen = iteratee ? [] : result;\n }\n outer:\n while (++index < length) {\n var value = array[index],\n computed = iteratee ? iteratee(value) : value;\n\n value = (comparator || value !== 0) ? value : 0;\n if (isCommon && computed === computed) {\n var seenIndex = seen.length;\n while (seenIndex--) {\n if (seen[seenIndex] === computed) {\n continue outer;\n }\n }\n if (iteratee) {\n seen.push(computed);\n }\n result.push(value);\n }\n else if (!includes(seen, computed, comparator)) {\n if (seen !== result) {\n seen.push(computed);\n }\n result.push(value);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.unset`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The property path to unset.\n * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n */\n function baseUnset(object, path) {\n path = castPath(path, object);\n object = parent(object, path);\n return object == null || delete object[toKey(last(path))];\n }\n\n /**\n * The base implementation of `_.update`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to update.\n * @param {Function} updater The function to produce the updated value.\n * @param {Function} [customizer] The function to customize path creation.\n * @returns {Object} Returns `object`.\n */\n function baseUpdate(object, path, updater, customizer) {\n return baseSet(object, path, updater(baseGet(object, path)), customizer);\n }\n\n /**\n * The base implementation of methods like `_.dropWhile` and `_.takeWhile`\n * without support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to query.\n * @param {Function} predicate The function invoked per iteration.\n * @param {boolean} [isDrop] Specify dropping elements instead of taking them.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Array} Returns the slice of `array`.\n */\n function baseWhile(array, predicate, isDrop, fromRight) {\n var length = array.length,\n index = fromRight ? length : -1;\n\n while ((fromRight ? index-- : ++index < length) &&\n predicate(array[index], index, array)) {}\n\n return isDrop\n ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length))\n : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index));\n }\n\n /**\n * The base implementation of `wrapperValue` which returns the result of\n * performing a sequence of actions on the unwrapped `value`, where each\n * successive action is supplied the return value of the previous.\n *\n * @private\n * @param {*} value The unwrapped value.\n * @param {Array} actions Actions to perform to resolve the unwrapped value.\n * @returns {*} Returns the resolved value.\n */\n function baseWrapperValue(value, actions) {\n var result = value;\n if (result instanceof LazyWrapper) {\n result = result.value();\n }\n return arrayReduce(actions, function(result, action) {\n return action.func.apply(action.thisArg, arrayPush([result], action.args));\n }, result);\n }\n\n /**\n * The base implementation of methods like `_.xor`, without support for\n * iteratee shorthands, that accepts an array of arrays to inspect.\n *\n * @private\n * @param {Array} arrays The arrays to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of values.\n */\n function baseXor(arrays, iteratee, comparator) {\n var length = arrays.length;\n if (length < 2) {\n return length ? baseUniq(arrays[0]) : [];\n }\n var index = -1,\n result = Array(length);\n\n while (++index < length) {\n var array = arrays[index],\n othIndex = -1;\n\n while (++othIndex < length) {\n if (othIndex != index) {\n result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator);\n }\n }\n }\n return baseUniq(baseFlatten(result, 1), iteratee, comparator);\n }\n\n /**\n * This base implementation of `_.zipObject` which assigns values using `assignFunc`.\n *\n * @private\n * @param {Array} props The property identifiers.\n * @param {Array} values The property values.\n * @param {Function} assignFunc The function to assign values.\n * @returns {Object} Returns the new object.\n */\n function baseZipObject(props, values, assignFunc) {\n var index = -1,\n length = props.length,\n valsLength = values.length,\n result = {};\n\n while (++index < length) {\n var value = index < valsLength ? values[index] : undefined;\n assignFunc(result, props[index], value);\n }\n return result;\n }\n\n /**\n * Casts `value` to an empty array if it's not an array like object.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {Array|Object} Returns the cast array-like object.\n */\n function castArrayLikeObject(value) {\n return isArrayLikeObject(value) ? value : [];\n }\n\n /**\n * Casts `value` to `identity` if it's not a function.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {Function} Returns cast function.\n */\n function castFunction(value) {\n return typeof value == 'function' ? value : identity;\n }\n\n /**\n * Casts `value` to a path array if it's not one.\n *\n * @private\n * @param {*} value The value to inspect.\n * @param {Object} [object] The object to query keys on.\n * @returns {Array} Returns the cast property path array.\n */\n function castPath(value, object) {\n if (isArray(value)) {\n return value;\n }\n return isKey(value, object) ? [value] : stringToPath(toString(value));\n }\n\n /**\n * A `baseRest` alias which can be replaced with `identity` by module\n * replacement plugins.\n *\n * @private\n * @type {Function}\n * @param {Function} func The function to apply a rest parameter to.\n * @returns {Function} Returns the new function.\n */\n var castRest = baseRest;\n\n /**\n * Casts `array` to a slice if it's needed.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {number} start The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the cast slice.\n */\n function castSlice(array, start, end) {\n var length = array.length;\n end = end === undefined ? length : end;\n return (!start && end >= length) ? array : baseSlice(array, start, end);\n }\n\n /**\n * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout).\n *\n * @private\n * @param {number|Object} id The timer id or timeout object of the timer to clear.\n */\n var clearTimeout = ctxClearTimeout || function(id) {\n return root.clearTimeout(id);\n };\n\n /**\n * Creates a clone of `buffer`.\n *\n * @private\n * @param {Buffer} buffer The buffer to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Buffer} Returns the cloned buffer.\n */\n function cloneBuffer(buffer, isDeep) {\n if (isDeep) {\n return buffer.slice();\n }\n var length = buffer.length,\n result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);\n\n buffer.copy(result);\n return result;\n }\n\n /**\n * Creates a clone of `arrayBuffer`.\n *\n * @private\n * @param {ArrayBuffer} arrayBuffer The array buffer to clone.\n * @returns {ArrayBuffer} Returns the cloned array buffer.\n */\n function cloneArrayBuffer(arrayBuffer) {\n var result = new arrayBuffer.constructor(arrayBuffer.byteLength);\n new Uint8Array(result).set(new Uint8Array(arrayBuffer));\n return result;\n }\n\n /**\n * Creates a clone of `dataView`.\n *\n * @private\n * @param {Object} dataView The data view to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned data view.\n */\n function cloneDataView(dataView, isDeep) {\n var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;\n return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);\n }\n\n /**\n * Creates a clone of `regexp`.\n *\n * @private\n * @param {Object} regexp The regexp to clone.\n * @returns {Object} Returns the cloned regexp.\n */\n function cloneRegExp(regexp) {\n var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));\n result.lastIndex = regexp.lastIndex;\n return result;\n }\n\n /**\n * Creates a clone of the `symbol` object.\n *\n * @private\n * @param {Object} symbol The symbol object to clone.\n * @returns {Object} Returns the cloned symbol object.\n */\n function cloneSymbol(symbol) {\n return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};\n }\n\n /**\n * Creates a clone of `typedArray`.\n *\n * @private\n * @param {Object} typedArray The typed array to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned typed array.\n */\n function cloneTypedArray(typedArray, isDeep) {\n var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;\n return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);\n }\n\n /**\n * Compares values to sort them in ascending order.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {number} Returns the sort order indicator for `value`.\n */\n function compareAscending(value, other) {\n if (value !== other) {\n var valIsDefined = value !== undefined,\n valIsNull = value === null,\n valIsReflexive = value === value,\n valIsSymbol = isSymbol(value);\n\n var othIsDefined = other !== undefined,\n othIsNull = other === null,\n othIsReflexive = other === other,\n othIsSymbol = isSymbol(other);\n\n if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||\n (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) ||\n (valIsNull && othIsDefined && othIsReflexive) ||\n (!valIsDefined && othIsReflexive) ||\n !valIsReflexive) {\n return 1;\n }\n if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||\n (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) ||\n (othIsNull && valIsDefined && valIsReflexive) ||\n (!othIsDefined && valIsReflexive) ||\n !othIsReflexive) {\n return -1;\n }\n }\n return 0;\n }\n\n /**\n * Used by `_.orderBy` to compare multiple properties of a value to another\n * and stable sort them.\n *\n * If `orders` is unspecified, all values are sorted in ascending order. Otherwise,\n * specify an order of \"desc\" for descending or \"asc\" for ascending sort order\n * of corresponding values.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {boolean[]|string[]} orders The order to sort by for each property.\n * @returns {number} Returns the sort order indicator for `object`.\n */\n function compareMultiple(object, other, orders) {\n var index = -1,\n objCriteria = object.criteria,\n othCriteria = other.criteria,\n length = objCriteria.length,\n ordersLength = orders.length;\n\n while (++index < length) {\n var result = compareAscending(objCriteria[index], othCriteria[index]);\n if (result) {\n if (index >= ordersLength) {\n return result;\n }\n var order = orders[index];\n return result * (order == 'desc' ? -1 : 1);\n }\n }\n // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications\n // that causes it, under certain circumstances, to provide the same value for\n // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247\n // for more details.\n //\n // This also ensures a stable sort in V8 and other engines.\n // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.\n return object.index - other.index;\n }\n\n /**\n * Creates an array that is the composition of partially applied arguments,\n * placeholders, and provided arguments into a single array of arguments.\n *\n * @private\n * @param {Array} args The provided arguments.\n * @param {Array} partials The arguments to prepend to those provided.\n * @param {Array} holders The `partials` placeholder indexes.\n * @params {boolean} [isCurried] Specify composing for a curried function.\n * @returns {Array} Returns the new array of composed arguments.\n */\n function composeArgs(args, partials, holders, isCurried) {\n var argsIndex = -1,\n argsLength = args.length,\n holdersLength = holders.length,\n leftIndex = -1,\n leftLength = partials.length,\n rangeLength = nativeMax(argsLength - holdersLength, 0),\n result = Array(leftLength + rangeLength),\n isUncurried = !isCurried;\n\n while (++leftIndex < leftLength) {\n result[leftIndex] = partials[leftIndex];\n }\n while (++argsIndex < holdersLength) {\n if (isUncurried || argsIndex < argsLength) {\n result[holders[argsIndex]] = args[argsIndex];\n }\n }\n while (rangeLength--) {\n result[leftIndex++] = args[argsIndex++];\n }\n return result;\n }\n\n /**\n * This function is like `composeArgs` except that the arguments composition\n * is tailored for `_.partialRight`.\n *\n * @private\n * @param {Array} args The provided arguments.\n * @param {Array} partials The arguments to append to those provided.\n * @param {Array} holders The `partials` placeholder indexes.\n * @params {boolean} [isCurried] Specify composing for a curried function.\n * @returns {Array} Returns the new array of composed arguments.\n */\n function composeArgsRight(args, partials, holders, isCurried) {\n var argsIndex = -1,\n argsLength = args.length,\n holdersIndex = -1,\n holdersLength = holders.length,\n rightIndex = -1,\n rightLength = partials.length,\n rangeLength = nativeMax(argsLength - holdersLength, 0),\n result = Array(rangeLength + rightLength),\n isUncurried = !isCurried;\n\n while (++argsIndex < rangeLength) {\n result[argsIndex] = args[argsIndex];\n }\n var offset = argsIndex;\n while (++rightIndex < rightLength) {\n result[offset + rightIndex] = partials[rightIndex];\n }\n while (++holdersIndex < holdersLength) {\n if (isUncurried || argsIndex < argsLength) {\n result[offset + holders[holdersIndex]] = args[argsIndex++];\n }\n }\n return result;\n }\n\n /**\n * Copies the values of `source` to `array`.\n *\n * @private\n * @param {Array} source The array to copy values from.\n * @param {Array} [array=[]] The array to copy values to.\n * @returns {Array} Returns `array`.\n */\n function copyArray(source, array) {\n var index = -1,\n length = source.length;\n\n array || (array = Array(length));\n while (++index < length) {\n array[index] = source[index];\n }\n return array;\n }\n\n /**\n * Copies properties of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy properties from.\n * @param {Array} props The property identifiers to copy.\n * @param {Object} [object={}] The object to copy properties to.\n * @param {Function} [customizer] The function to customize copied values.\n * @returns {Object} Returns `object`.\n */\n function copyObject(source, props, object, customizer) {\n var isNew = !object;\n object || (object = {});\n\n var index = -1,\n length = props.length;\n\n while (++index < length) {\n var key = props[index];\n\n var newValue = customizer\n ? customizer(object[key], source[key], key, object, source)\n : undefined;\n\n if (newValue === undefined) {\n newValue = source[key];\n }\n if (isNew) {\n baseAssignValue(object, key, newValue);\n } else {\n assignValue(object, key, newValue);\n }\n }\n return object;\n }\n\n /**\n * Copies own symbols of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy symbols from.\n * @param {Object} [object={}] The object to copy symbols to.\n * @returns {Object} Returns `object`.\n */\n function copySymbols(source, object) {\n return copyObject(source, getSymbols(source), object);\n }\n\n /**\n * Copies own and inherited symbols of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy symbols from.\n * @param {Object} [object={}] The object to copy symbols to.\n * @returns {Object} Returns `object`.\n */\n function copySymbolsIn(source, object) {\n return copyObject(source, getSymbolsIn(source), object);\n }\n\n /**\n * Creates a function like `_.groupBy`.\n *\n * @private\n * @param {Function} setter The function to set accumulator values.\n * @param {Function} [initializer] The accumulator object initializer.\n * @returns {Function} Returns the new aggregator function.\n */\n function createAggregator(setter, initializer) {\n return function(collection, iteratee) {\n var func = isArray(collection) ? arrayAggregator : baseAggregator,\n accumulator = initializer ? initializer() : {};\n\n return func(collection, setter, getIteratee(iteratee, 2), accumulator);\n };\n }\n\n /**\n * Creates a function like `_.assign`.\n *\n * @private\n * @param {Function} assigner The function to assign values.\n * @returns {Function} Returns the new assigner function.\n */\n function createAssigner(assigner) {\n return baseRest(function(object, sources) {\n var index = -1,\n length = sources.length,\n customizer = length > 1 ? sources[length - 1] : undefined,\n guard = length > 2 ? sources[2] : undefined;\n\n customizer = (assigner.length > 3 && typeof customizer == 'function')\n ? (length--, customizer)\n : undefined;\n\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n customizer = length < 3 ? undefined : customizer;\n length = 1;\n }\n object = Object(object);\n while (++index < length) {\n var source = sources[index];\n if (source) {\n assigner(object, source, index, customizer);\n }\n }\n return object;\n });\n }\n\n /**\n * Creates a `baseEach` or `baseEachRight` function.\n *\n * @private\n * @param {Function} eachFunc The function to iterate over a collection.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\n function createBaseEach(eachFunc, fromRight) {\n return function(collection, iteratee) {\n if (collection == null) {\n return collection;\n }\n if (!isArrayLike(collection)) {\n return eachFunc(collection, iteratee);\n }\n var length = collection.length,\n index = fromRight ? length : -1,\n iterable = Object(collection);\n\n while ((fromRight ? index-- : ++index < length)) {\n if (iteratee(iterable[index], index, iterable) === false) {\n break;\n }\n }\n return collection;\n };\n }\n\n /**\n * Creates a base function for methods like `_.forIn` and `_.forOwn`.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\n function createBaseFor(fromRight) {\n return function(object, iteratee, keysFunc) {\n var index = -1,\n iterable = Object(object),\n props = keysFunc(object),\n length = props.length;\n\n while (length--) {\n var key = props[fromRight ? length : ++index];\n if (iteratee(iterable[key], key, iterable) === false) {\n break;\n }\n }\n return object;\n };\n }\n\n /**\n * Creates a function that wraps `func` to invoke it with the optional `this`\n * binding of `thisArg`.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createBind(func, bitmask, thisArg) {\n var isBind = bitmask & WRAP_BIND_FLAG,\n Ctor = createCtor(func);\n\n function wrapper() {\n var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n return fn.apply(isBind ? thisArg : this, arguments);\n }\n return wrapper;\n }\n\n /**\n * Creates a function like `_.lowerFirst`.\n *\n * @private\n * @param {string} methodName The name of the `String` case method to use.\n * @returns {Function} Returns the new case function.\n */\n function createCaseFirst(methodName) {\n return function(string) {\n string = toString(string);\n\n var strSymbols = hasUnicode(string)\n ? stringToArray(string)\n : undefined;\n\n var chr = strSymbols\n ? strSymbols[0]\n : string.charAt(0);\n\n var trailing = strSymbols\n ? castSlice(strSymbols, 1).join('')\n : string.slice(1);\n\n return chr[methodName]() + trailing;\n };\n }\n\n /**\n * Creates a function like `_.camelCase`.\n *\n * @private\n * @param {Function} callback The function to combine each word.\n * @returns {Function} Returns the new compounder function.\n */\n function createCompounder(callback) {\n return function(string) {\n return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');\n };\n }\n\n /**\n * Creates a function that produces an instance of `Ctor` regardless of\n * whether it was invoked as part of a `new` expression or by `call` or `apply`.\n *\n * @private\n * @param {Function} Ctor The constructor to wrap.\n * @returns {Function} Returns the new wrapped function.\n */\n function createCtor(Ctor) {\n return function() {\n // Use a `switch` statement to work with class constructors. See\n // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist\n // for more details.\n var args = arguments;\n switch (args.length) {\n case 0: return new Ctor;\n case 1: return new Ctor(args[0]);\n case 2: return new Ctor(args[0], args[1]);\n case 3: return new Ctor(args[0], args[1], args[2]);\n case 4: return new Ctor(args[0], args[1], args[2], args[3]);\n case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);\n case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);\n case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);\n }\n var thisBinding = baseCreate(Ctor.prototype),\n result = Ctor.apply(thisBinding, args);\n\n // Mimic the constructor's `return` behavior.\n // See https://es5.github.io/#x13.2.2 for more details.\n return isObject(result) ? result : thisBinding;\n };\n }\n\n /**\n * Creates a function that wraps `func` to enable currying.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {number} arity The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createCurry(func, bitmask, arity) {\n var Ctor = createCtor(func);\n\n function wrapper() {\n var length = arguments.length,\n args = Array(length),\n index = length,\n placeholder = getHolder(wrapper);\n\n while (index--) {\n args[index] = arguments[index];\n }\n var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder)\n ? []\n : replaceHolders(args, placeholder);\n\n length -= holders.length;\n if (length < arity) {\n return createRecurry(\n func, bitmask, createHybrid, wrapper.placeholder, undefined,\n args, holders, undefined, undefined, arity - length);\n }\n var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n return apply(fn, this, args);\n }\n return wrapper;\n }\n\n /**\n * Creates a `_.find` or `_.findLast` function.\n *\n * @private\n * @param {Function} findIndexFunc The function to find the collection index.\n * @returns {Function} Returns the new find function.\n */\n function createFind(findIndexFunc) {\n return function(collection, predicate, fromIndex) {\n var iterable = Object(collection);\n if (!isArrayLike(collection)) {\n var iteratee = getIteratee(predicate, 3);\n collection = keys(collection);\n predicate = function(key) { return iteratee(iterable[key], key, iterable); };\n }\n var index = findIndexFunc(collection, predicate, fromIndex);\n return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined;\n };\n }\n\n /**\n * Creates a `_.flow` or `_.flowRight` function.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new flow function.\n */\n function createFlow(fromRight) {\n return flatRest(function(funcs) {\n var length = funcs.length,\n index = length,\n prereq = LodashWrapper.prototype.thru;\n\n if (fromRight) {\n funcs.reverse();\n }\n while (index--) {\n var func = funcs[index];\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n if (prereq && !wrapper && getFuncName(func) == 'wrapper') {\n var wrapper = new LodashWrapper([], true);\n }\n }\n index = wrapper ? index : length;\n while (++index < length) {\n func = funcs[index];\n\n var funcName = getFuncName(func),\n data = funcName == 'wrapper' ? getData(func) : undefined;\n\n if (data && isLaziable(data[0]) &&\n data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) &&\n !data[4].length && data[9] == 1\n ) {\n wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);\n } else {\n wrapper = (func.length == 1 && isLaziable(func))\n ? wrapper[funcName]()\n : wrapper.thru(func);\n }\n }\n return function() {\n var args = arguments,\n value = args[0];\n\n if (wrapper && args.length == 1 && isArray(value)) {\n return wrapper.plant(value).value();\n }\n var index = 0,\n result = length ? funcs[index].apply(this, args) : value;\n\n while (++index < length) {\n result = funcs[index].call(this, result);\n }\n return result;\n };\n });\n }\n\n /**\n * Creates a function that wraps `func` to invoke it with optional `this`\n * binding of `thisArg`, partial application, and currying.\n *\n * @private\n * @param {Function|string} func The function or method name to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to prepend to those provided to\n * the new function.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [partialsRight] The arguments to append to those provided\n * to the new function.\n * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {\n var isAry = bitmask & WRAP_ARY_FLAG,\n isBind = bitmask & WRAP_BIND_FLAG,\n isBindKey = bitmask & WRAP_BIND_KEY_FLAG,\n isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG),\n isFlip = bitmask & WRAP_FLIP_FLAG,\n Ctor = isBindKey ? undefined : createCtor(func);\n\n function wrapper() {\n var length = arguments.length,\n args = Array(length),\n index = length;\n\n while (index--) {\n args[index] = arguments[index];\n }\n if (isCurried) {\n var placeholder = getHolder(wrapper),\n holdersCount = countHolders(args, placeholder);\n }\n if (partials) {\n args = composeArgs(args, partials, holders, isCurried);\n }\n if (partialsRight) {\n args = composeArgsRight(args, partialsRight, holdersRight, isCurried);\n }\n length -= holdersCount;\n if (isCurried && length < arity) {\n var newHolders = replaceHolders(args, placeholder);\n return createRecurry(\n func, bitmask, createHybrid, wrapper.placeholder, thisArg,\n args, newHolders, argPos, ary, arity - length\n );\n }\n var thisBinding = isBind ? thisArg : this,\n fn = isBindKey ? thisBinding[func] : func;\n\n length = args.length;\n if (argPos) {\n args = reorder(args, argPos);\n } else if (isFlip && length > 1) {\n args.reverse();\n }\n if (isAry && ary < length) {\n args.length = ary;\n }\n if (this && this !== root && this instanceof wrapper) {\n fn = Ctor || createCtor(fn);\n }\n return fn.apply(thisBinding, args);\n }\n return wrapper;\n }\n\n /**\n * Creates a function like `_.invertBy`.\n *\n * @private\n * @param {Function} setter The function to set accumulator values.\n * @param {Function} toIteratee The function to resolve iteratees.\n * @returns {Function} Returns the new inverter function.\n */\n function createInverter(setter, toIteratee) {\n return function(object, iteratee) {\n return baseInverter(object, setter, toIteratee(iteratee), {});\n };\n }\n\n /**\n * Creates a function that performs a mathematical operation on two values.\n *\n * @private\n * @param {Function} operator The function to perform the operation.\n * @param {number} [defaultValue] The value used for `undefined` arguments.\n * @returns {Function} Returns the new mathematical operation function.\n */\n function createMathOperation(operator, defaultValue) {\n return function(value, other) {\n var result;\n if (value === undefined && other === undefined) {\n return defaultValue;\n }\n if (value !== undefined) {\n result = value;\n }\n if (other !== undefined) {\n if (result === undefined) {\n return other;\n }\n if (typeof value == 'string' || typeof other == 'string') {\n value = baseToString(value);\n other = baseToString(other);\n } else {\n value = baseToNumber(value);\n other = baseToNumber(other);\n }\n result = operator(value, other);\n }\n return result;\n };\n }\n\n /**\n * Creates a function like `_.over`.\n *\n * @private\n * @param {Function} arrayFunc The function to iterate over iteratees.\n * @returns {Function} Returns the new over function.\n */\n function createOver(arrayFunc) {\n return flatRest(function(iteratees) {\n iteratees = arrayMap(iteratees, baseUnary(getIteratee()));\n return baseRest(function(args) {\n var thisArg = this;\n return arrayFunc(iteratees, function(iteratee) {\n return apply(iteratee, thisArg, args);\n });\n });\n });\n }\n\n /**\n * Creates the padding for `string` based on `length`. The `chars` string\n * is truncated if the number of characters exceeds `length`.\n *\n * @private\n * @param {number} length The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padding for `string`.\n */\n function createPadding(length, chars) {\n chars = chars === undefined ? ' ' : baseToString(chars);\n\n var charsLength = chars.length;\n if (charsLength < 2) {\n return charsLength ? baseRepeat(chars, length) : chars;\n }\n var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));\n return hasUnicode(chars)\n ? castSlice(stringToArray(result), 0, length).join('')\n : result.slice(0, length);\n }\n\n /**\n * Creates a function that wraps `func` to invoke it with the `this` binding\n * of `thisArg` and `partials` prepended to the arguments it receives.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {Array} partials The arguments to prepend to those provided to\n * the new function.\n * @returns {Function} Returns the new wrapped function.\n */\n function createPartial(func, bitmask, thisArg, partials) {\n var isBind = bitmask & WRAP_BIND_FLAG,\n Ctor = createCtor(func);\n\n function wrapper() {\n var argsIndex = -1,\n argsLength = arguments.length,\n leftIndex = -1,\n leftLength = partials.length,\n args = Array(leftLength + argsLength),\n fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n\n while (++leftIndex < leftLength) {\n args[leftIndex] = partials[leftIndex];\n }\n while (argsLength--) {\n args[leftIndex++] = arguments[++argsIndex];\n }\n return apply(fn, isBind ? thisArg : this, args);\n }\n return wrapper;\n }\n\n /**\n * Creates a `_.range` or `_.rangeRight` function.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new range function.\n */\n function createRange(fromRight) {\n return function(start, end, step) {\n if (step && typeof step != 'number' && isIterateeCall(start, end, step)) {\n end = step = undefined;\n }\n // Ensure the sign of `-0` is preserved.\n start = toFinite(start);\n if (end === undefined) {\n end = start;\n start = 0;\n } else {\n end = toFinite(end);\n }\n step = step === undefined ? (start < end ? 1 : -1) : toFinite(step);\n return baseRange(start, end, step, fromRight);\n };\n }\n\n /**\n * Creates a function that performs a relational operation on two values.\n *\n * @private\n * @param {Function} operator The function to perform the operation.\n * @returns {Function} Returns the new relational operation function.\n */\n function createRelationalOperation(operator) {\n return function(value, other) {\n if (!(typeof value == 'string' && typeof other == 'string')) {\n value = toNumber(value);\n other = toNumber(other);\n }\n return operator(value, other);\n };\n }\n\n /**\n * Creates a function that wraps `func` to continue currying.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {Function} wrapFunc The function to create the `func` wrapper.\n * @param {*} placeholder The placeholder value.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to prepend to those provided to\n * the new function.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {\n var isCurry = bitmask & WRAP_CURRY_FLAG,\n newHolders = isCurry ? holders : undefined,\n newHoldersRight = isCurry ? undefined : holders,\n newPartials = isCurry ? partials : undefined,\n newPartialsRight = isCurry ? undefined : partials;\n\n bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG);\n bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG);\n\n if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) {\n bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG);\n }\n var newData = [\n func, bitmask, thisArg, newPartials, newHolders, newPartialsRight,\n newHoldersRight, argPos, ary, arity\n ];\n\n var result = wrapFunc.apply(undefined, newData);\n if (isLaziable(func)) {\n setData(result, newData);\n }\n result.placeholder = placeholder;\n return setWrapToString(result, func, bitmask);\n }\n\n /**\n * Creates a function like `_.round`.\n *\n * @private\n * @param {string} methodName The name of the `Math` method to use when rounding.\n * @returns {Function} Returns the new round function.\n */\n function createRound(methodName) {\n var func = Math[methodName];\n return function(number, precision) {\n number = toNumber(number);\n precision = precision == null ? 0 : nativeMin(toInteger(precision), 292);\n if (precision && nativeIsFinite(number)) {\n // Shift with exponential notation to avoid floating-point issues.\n // See [MDN](https://mdn.io/round#Examples) for more details.\n var pair = (toString(number) + 'e').split('e'),\n value = func(pair[0] + 'e' + (+pair[1] + precision));\n\n pair = (toString(value) + 'e').split('e');\n return +(pair[0] + 'e' + (+pair[1] - precision));\n }\n return func(number);\n };\n }\n\n /**\n * Creates a set object of `values`.\n *\n * @private\n * @param {Array} values The values to add to the set.\n * @returns {Object} Returns the new set.\n */\n var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) {\n return new Set(values);\n };\n\n /**\n * Creates a `_.toPairs` or `_.toPairsIn` function.\n *\n * @private\n * @param {Function} keysFunc The function to get the keys of a given object.\n * @returns {Function} Returns the new pairs function.\n */\n function createToPairs(keysFunc) {\n return function(object) {\n var tag = getTag(object);\n if (tag == mapTag) {\n return mapToArray(object);\n }\n if (tag == setTag) {\n return setToPairs(object);\n }\n return baseToPairs(object, keysFunc(object));\n };\n }\n\n /**\n * Creates a function that either curries or invokes `func` with optional\n * `this` binding and partially applied arguments.\n *\n * @private\n * @param {Function|string} func The function or method name to wrap.\n * @param {number} bitmask The bitmask flags.\n * 1 - `_.bind`\n * 2 - `_.bindKey`\n * 4 - `_.curry` or `_.curryRight` of a bound function\n * 8 - `_.curry`\n * 16 - `_.curryRight`\n * 32 - `_.partial`\n * 64 - `_.partialRight`\n * 128 - `_.rearg`\n * 256 - `_.ary`\n * 512 - `_.flip`\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to be partially applied.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {\n var isBindKey = bitmask & WRAP_BIND_KEY_FLAG;\n if (!isBindKey && typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n var length = partials ? partials.length : 0;\n if (!length) {\n bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG);\n partials = holders = undefined;\n }\n ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0);\n arity = arity === undefined ? arity : toInteger(arity);\n length -= holders ? holders.length : 0;\n\n if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) {\n var partialsRight = partials,\n holdersRight = holders;\n\n partials = holders = undefined;\n }\n var data = isBindKey ? undefined : getData(func);\n\n var newData = [\n func, bitmask, thisArg, partials, holders, partialsRight, holdersRight,\n argPos, ary, arity\n ];\n\n if (data) {\n mergeData(newData, data);\n }\n func = newData[0];\n bitmask = newData[1];\n thisArg = newData[2];\n partials = newData[3];\n holders = newData[4];\n arity = newData[9] = newData[9] === undefined\n ? (isBindKey ? 0 : func.length)\n : nativeMax(newData[9] - length, 0);\n\n if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) {\n bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG);\n }\n if (!bitmask || bitmask == WRAP_BIND_FLAG) {\n var result = createBind(func, bitmask, thisArg);\n } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) {\n result = createCurry(func, bitmask, arity);\n } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) {\n result = createPartial(func, bitmask, thisArg, partials);\n } else {\n result = createHybrid.apply(undefined, newData);\n }\n var setter = data ? baseSetData : setData;\n return setWrapToString(setter(result, newData), func, bitmask);\n }\n\n /**\n * Used by `_.defaults` to customize its `_.assignIn` use to assign properties\n * of source objects to the destination object for all destination properties\n * that resolve to `undefined`.\n *\n * @private\n * @param {*} objValue The destination value.\n * @param {*} srcValue The source value.\n * @param {string} key The key of the property to assign.\n * @param {Object} object The parent object of `objValue`.\n * @returns {*} Returns the value to assign.\n */\n function customDefaultsAssignIn(objValue, srcValue, key, object) {\n if (objValue === undefined ||\n (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) {\n return srcValue;\n }\n return objValue;\n }\n\n /**\n * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source\n * objects into destination objects that are passed thru.\n *\n * @private\n * @param {*} objValue The destination value.\n * @param {*} srcValue The source value.\n * @param {string} key The key of the property to merge.\n * @param {Object} object The parent object of `objValue`.\n * @param {Object} source The parent object of `srcValue`.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n * @returns {*} Returns the value to assign.\n */\n function customDefaultsMerge(objValue, srcValue, key, object, source, stack) {\n if (isObject(objValue) && isObject(srcValue)) {\n // Recursively merge objects and arrays (susceptible to call stack limits).\n stack.set(srcValue, objValue);\n baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack);\n stack['delete'](srcValue);\n }\n return objValue;\n }\n\n /**\n * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain\n * objects.\n *\n * @private\n * @param {*} value The value to inspect.\n * @param {string} key The key of the property to inspect.\n * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`.\n */\n function customOmitClone(value) {\n return isPlainObject(value) ? undefined : value;\n }\n\n /**\n * A specialized version of `baseIsEqualDeep` for arrays with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Array} array The array to compare.\n * @param {Array} other The other array to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `array` and `other` objects.\n * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.\n */\n function equalArrays(array, other, bitmask, customizer, equalFunc, stack) {\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n arrLength = array.length,\n othLength = other.length;\n\n if (arrLength != othLength && !(isPartial && othLength > arrLength)) {\n return false;\n }\n // Assume cyclic values are equal.\n var stacked = stack.get(array);\n if (stacked && stack.get(other)) {\n return stacked == other;\n }\n var index = -1,\n result = true,\n seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined;\n\n stack.set(array, other);\n stack.set(other, array);\n\n // Ignore non-index properties.\n while (++index < arrLength) {\n var arrValue = array[index],\n othValue = other[index];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, arrValue, index, other, array, stack)\n : customizer(arrValue, othValue, index, array, other, stack);\n }\n if (compared !== undefined) {\n if (compared) {\n continue;\n }\n result = false;\n break;\n }\n // Recursively compare arrays (susceptible to call stack limits).\n if (seen) {\n if (!arraySome(other, function(othValue, othIndex) {\n if (!cacheHas(seen, othIndex) &&\n (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {\n return seen.push(othIndex);\n }\n })) {\n result = false;\n break;\n }\n } else if (!(\n arrValue === othValue ||\n equalFunc(arrValue, othValue, bitmask, customizer, stack)\n )) {\n result = false;\n break;\n }\n }\n stack['delete'](array);\n stack['delete'](other);\n return result;\n }\n\n /**\n * A specialized version of `baseIsEqualDeep` for comparing objects of\n * the same `toStringTag`.\n *\n * **Note:** This function only supports comparing values with tags of\n * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {string} tag The `toStringTag` of the objects to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\n function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {\n switch (tag) {\n case dataViewTag:\n if ((object.byteLength != other.byteLength) ||\n (object.byteOffset != other.byteOffset)) {\n return false;\n }\n object = object.buffer;\n other = other.buffer;\n\n case arrayBufferTag:\n if ((object.byteLength != other.byteLength) ||\n !equalFunc(new Uint8Array(object), new Uint8Array(other))) {\n return false;\n }\n return true;\n\n case boolTag:\n case dateTag:\n case numberTag:\n // Coerce booleans to `1` or `0` and dates to milliseconds.\n // Invalid dates are coerced to `NaN`.\n return eq(+object, +other);\n\n case errorTag:\n return object.name == other.name && object.message == other.message;\n\n case regexpTag:\n case stringTag:\n // Coerce regexes to strings and treat strings, primitives and objects,\n // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring\n // for more details.\n return object == (other + '');\n\n case mapTag:\n var convert = mapToArray;\n\n case setTag:\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG;\n convert || (convert = setToArray);\n\n if (object.size != other.size && !isPartial) {\n return false;\n }\n // Assume cyclic values are equal.\n var stacked = stack.get(object);\n if (stacked) {\n return stacked == other;\n }\n bitmask |= COMPARE_UNORDERED_FLAG;\n\n // Recursively compare objects (susceptible to call stack limits).\n stack.set(object, other);\n var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);\n stack['delete'](object);\n return result;\n\n case symbolTag:\n if (symbolValueOf) {\n return symbolValueOf.call(object) == symbolValueOf.call(other);\n }\n }\n return false;\n }\n\n /**\n * A specialized version of `baseIsEqualDeep` for objects with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\n function equalObjects(object, other, bitmask, customizer, equalFunc, stack) {\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n objProps = getAllKeys(object),\n objLength = objProps.length,\n othProps = getAllKeys(other),\n othLength = othProps.length;\n\n if (objLength != othLength && !isPartial) {\n return false;\n }\n var index = objLength;\n while (index--) {\n var key = objProps[index];\n if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {\n return false;\n }\n }\n // Assume cyclic values are equal.\n var stacked = stack.get(object);\n if (stacked && stack.get(other)) {\n return stacked == other;\n }\n var result = true;\n stack.set(object, other);\n stack.set(other, object);\n\n var skipCtor = isPartial;\n while (++index < objLength) {\n key = objProps[index];\n var objValue = object[key],\n othValue = other[key];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, objValue, key, other, object, stack)\n : customizer(objValue, othValue, key, object, other, stack);\n }\n // Recursively compare objects (susceptible to call stack limits).\n if (!(compared === undefined\n ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))\n : compared\n )) {\n result = false;\n break;\n }\n skipCtor || (skipCtor = key == 'constructor');\n }\n if (result && !skipCtor) {\n var objCtor = object.constructor,\n othCtor = other.constructor;\n\n // Non `Object` object instances with different constructors are not equal.\n if (objCtor != othCtor &&\n ('constructor' in object && 'constructor' in other) &&\n !(typeof objCtor == 'function' && objCtor instanceof objCtor &&\n typeof othCtor == 'function' && othCtor instanceof othCtor)) {\n result = false;\n }\n }\n stack['delete'](object);\n stack['delete'](other);\n return result;\n }\n\n /**\n * A specialized version of `baseRest` which flattens the rest array.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @returns {Function} Returns the new function.\n */\n function flatRest(func) {\n return setToString(overRest(func, undefined, flatten), func + '');\n }\n\n /**\n * Creates an array of own enumerable property names and symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\n function getAllKeys(object) {\n return baseGetAllKeys(object, keys, getSymbols);\n }\n\n /**\n * Creates an array of own and inherited enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\n function getAllKeysIn(object) {\n return baseGetAllKeys(object, keysIn, getSymbolsIn);\n }\n\n /**\n * Gets metadata for `func`.\n *\n * @private\n * @param {Function} func The function to query.\n * @returns {*} Returns the metadata for `func`.\n */\n var getData = !metaMap ? noop : function(func) {\n return metaMap.get(func);\n };\n\n /**\n * Gets the name of `func`.\n *\n * @private\n * @param {Function} func The function to query.\n * @returns {string} Returns the function name.\n */\n function getFuncName(func) {\n var result = (func.name + ''),\n array = realNames[result],\n length = hasOwnProperty.call(realNames, result) ? array.length : 0;\n\n while (length--) {\n var data = array[length],\n otherFunc = data.func;\n if (otherFunc == null || otherFunc == func) {\n return data.name;\n }\n }\n return result;\n }\n\n /**\n * Gets the argument placeholder value for `func`.\n *\n * @private\n * @param {Function} func The function to inspect.\n * @returns {*} Returns the placeholder value.\n */\n function getHolder(func) {\n var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func;\n return object.placeholder;\n }\n\n /**\n * Gets the appropriate \"iteratee\" function. If `_.iteratee` is customized,\n * this function returns the custom method, otherwise it returns `baseIteratee`.\n * If arguments are provided, the chosen function is invoked with them and\n * its result is returned.\n *\n * @private\n * @param {*} [value] The value to convert to an iteratee.\n * @param {number} [arity] The arity of the created iteratee.\n * @returns {Function} Returns the chosen function or its result.\n */\n function getIteratee() {\n var result = lodash.iteratee || iteratee;\n result = result === iteratee ? baseIteratee : result;\n return arguments.length ? result(arguments[0], arguments[1]) : result;\n }\n\n /**\n * Gets the data for `map`.\n *\n * @private\n * @param {Object} map The map to query.\n * @param {string} key The reference key.\n * @returns {*} Returns the map data.\n */\n function getMapData(map, key) {\n var data = map.__data__;\n return isKeyable(key)\n ? data[typeof key == 'string' ? 'string' : 'hash']\n : data.map;\n }\n\n /**\n * Gets the property names, values, and compare flags of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the match data of `object`.\n */\n function getMatchData(object) {\n var result = keys(object),\n length = result.length;\n\n while (length--) {\n var key = result[length],\n value = object[key];\n\n result[length] = [key, value, isStrictComparable(value)];\n }\n return result;\n }\n\n /**\n * Gets the native function at `key` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the method to get.\n * @returns {*} Returns the function if it's native, else `undefined`.\n */\n function getNative(object, key) {\n var value = getValue(object, key);\n return baseIsNative(value) ? value : undefined;\n }\n\n /**\n * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the raw `toStringTag`.\n */\n function getRawTag(value) {\n var isOwn = hasOwnProperty.call(value, symToStringTag),\n tag = value[symToStringTag];\n\n try {\n value[symToStringTag] = undefined;\n var unmasked = true;\n } catch (e) {}\n\n var result = nativeObjectToString.call(value);\n if (unmasked) {\n if (isOwn) {\n value[symToStringTag] = tag;\n } else {\n delete value[symToStringTag];\n }\n }\n return result;\n }\n\n /**\n * Creates an array of the own enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\n var getSymbols = !nativeGetSymbols ? stubArray : function(object) {\n if (object == null) {\n return [];\n }\n object = Object(object);\n return arrayFilter(nativeGetSymbols(object), function(symbol) {\n return propertyIsEnumerable.call(object, symbol);\n });\n };\n\n /**\n * Creates an array of the own and inherited enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\n var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) {\n var result = [];\n while (object) {\n arrayPush(result, getSymbols(object));\n object = getPrototype(object);\n }\n return result;\n };\n\n /**\n * Gets the `toStringTag` of `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\n var getTag = baseGetTag;\n\n // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.\n if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||\n (Map && getTag(new Map) != mapTag) ||\n (Promise && getTag(Promise.resolve()) != promiseTag) ||\n (Set && getTag(new Set) != setTag) ||\n (WeakMap && getTag(new WeakMap) != weakMapTag)) {\n getTag = function(value) {\n var result = baseGetTag(value),\n Ctor = result == objectTag ? value.constructor : undefined,\n ctorString = Ctor ? toSource(Ctor) : '';\n\n if (ctorString) {\n switch (ctorString) {\n case dataViewCtorString: return dataViewTag;\n case mapCtorString: return mapTag;\n case promiseCtorString: return promiseTag;\n case setCtorString: return setTag;\n case weakMapCtorString: return weakMapTag;\n }\n }\n return result;\n };\n }\n\n /**\n * Gets the view, applying any `transforms` to the `start` and `end` positions.\n *\n * @private\n * @param {number} start The start of the view.\n * @param {number} end The end of the view.\n * @param {Array} transforms The transformations to apply to the view.\n * @returns {Object} Returns an object containing the `start` and `end`\n * positions of the view.\n */\n function getView(start, end, transforms) {\n var index = -1,\n length = transforms.length;\n\n while (++index < length) {\n var data = transforms[index],\n size = data.size;\n\n switch (data.type) {\n case 'drop': start += size; break;\n case 'dropRight': end -= size; break;\n case 'take': end = nativeMin(end, start + size); break;\n case 'takeRight': start = nativeMax(start, end - size); break;\n }\n }\n return { 'start': start, 'end': end };\n }\n\n /**\n * Extracts wrapper details from the `source` body comment.\n *\n * @private\n * @param {string} source The source to inspect.\n * @returns {Array} Returns the wrapper details.\n */\n function getWrapDetails(source) {\n var match = source.match(reWrapDetails);\n return match ? match[1].split(reSplitDetails) : [];\n }\n\n /**\n * Checks if `path` exists on `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @param {Function} hasFunc The function to check properties.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n */\n function hasPath(object, path, hasFunc) {\n path = castPath(path, object);\n\n var index = -1,\n length = path.length,\n result = false;\n\n while (++index < length) {\n var key = toKey(path[index]);\n if (!(result = object != null && hasFunc(object, key))) {\n break;\n }\n object = object[key];\n }\n if (result || ++index != length) {\n return result;\n }\n length = object == null ? 0 : object.length;\n return !!length && isLength(length) && isIndex(key, length) &&\n (isArray(object) || isArguments(object));\n }\n\n /**\n * Initializes an array clone.\n *\n * @private\n * @param {Array} array The array to clone.\n * @returns {Array} Returns the initialized clone.\n */\n function initCloneArray(array) {\n var length = array.length,\n result = new array.constructor(length);\n\n // Add properties assigned by `RegExp#exec`.\n if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {\n result.index = array.index;\n result.input = array.input;\n }\n return result;\n }\n\n /**\n * Initializes an object clone.\n *\n * @private\n * @param {Object} object The object to clone.\n * @returns {Object} Returns the initialized clone.\n */\n function initCloneObject(object) {\n return (typeof object.constructor == 'function' && !isPrototype(object))\n ? baseCreate(getPrototype(object))\n : {};\n }\n\n /**\n * Initializes an object clone based on its `toStringTag`.\n *\n * **Note:** This function only supports cloning values with tags of\n * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.\n *\n * @private\n * @param {Object} object The object to clone.\n * @param {string} tag The `toStringTag` of the object to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the initialized clone.\n */\n function initCloneByTag(object, tag, isDeep) {\n var Ctor = object.constructor;\n switch (tag) {\n case arrayBufferTag:\n return cloneArrayBuffer(object);\n\n case boolTag:\n case dateTag:\n return new Ctor(+object);\n\n case dataViewTag:\n return cloneDataView(object, isDeep);\n\n case float32Tag: case float64Tag:\n case int8Tag: case int16Tag: case int32Tag:\n case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:\n return cloneTypedArray(object, isDeep);\n\n case mapTag:\n return new Ctor;\n\n case numberTag:\n case stringTag:\n return new Ctor(object);\n\n case regexpTag:\n return cloneRegExp(object);\n\n case setTag:\n return new Ctor;\n\n case symbolTag:\n return cloneSymbol(object);\n }\n }\n\n /**\n * Inserts wrapper `details` in a comment at the top of the `source` body.\n *\n * @private\n * @param {string} source The source to modify.\n * @returns {Array} details The details to insert.\n * @returns {string} Returns the modified source.\n */\n function insertWrapDetails(source, details) {\n var length = details.length;\n if (!length) {\n return source;\n }\n var lastIndex = length - 1;\n details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex];\n details = details.join(length > 2 ? ', ' : ' ');\n return source.replace(reWrapComment, '{\\n/* [wrapped with ' + details + '] */\\n');\n }\n\n /**\n * Checks if `value` is a flattenable `arguments` object or array.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.\n */\n function isFlattenable(value) {\n return isArray(value) || isArguments(value) ||\n !!(spreadableSymbol && value && value[spreadableSymbol]);\n }\n\n /**\n * Checks if `value` is a valid array-like index.\n *\n * @private\n * @param {*} value The value to check.\n * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n */\n function isIndex(value, length) {\n var type = typeof value;\n length = length == null ? MAX_SAFE_INTEGER : length;\n\n return !!length &&\n (type == 'number' ||\n (type != 'symbol' && reIsUint.test(value))) &&\n (value > -1 && value % 1 == 0 && value < length);\n }\n\n /**\n * Checks if the given arguments are from an iteratee call.\n *\n * @private\n * @param {*} value The potential iteratee value argument.\n * @param {*} index The potential iteratee index or key argument.\n * @param {*} object The potential iteratee object argument.\n * @returns {boolean} Returns `true` if the arguments are from an iteratee call,\n * else `false`.\n */\n function isIterateeCall(value, index, object) {\n if (!isObject(object)) {\n return false;\n }\n var type = typeof index;\n if (type == 'number'\n ? (isArrayLike(object) && isIndex(index, object.length))\n : (type == 'string' && index in object)\n ) {\n return eq(object[index], value);\n }\n return false;\n }\n\n /**\n * Checks if `value` is a property name and not a property path.\n *\n * @private\n * @param {*} value The value to check.\n * @param {Object} [object] The object to query keys on.\n * @returns {boolean} Returns `true` if `value` is a property name, else `false`.\n */\n function isKey(value, object) {\n if (isArray(value)) {\n return false;\n }\n var type = typeof value;\n if (type == 'number' || type == 'symbol' || type == 'boolean' ||\n value == null || isSymbol(value)) {\n return true;\n }\n return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||\n (object != null && value in Object(object));\n }\n\n /**\n * Checks if `value` is suitable for use as unique object key.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is suitable, else `false`.\n */\n function isKeyable(value) {\n var type = typeof value;\n return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')\n ? (value !== '__proto__')\n : (value === null);\n }\n\n /**\n * Checks if `func` has a lazy counterpart.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` has a lazy counterpart,\n * else `false`.\n */\n function isLaziable(func) {\n var funcName = getFuncName(func),\n other = lodash[funcName];\n\n if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) {\n return false;\n }\n if (func === other) {\n return true;\n }\n var data = getData(other);\n return !!data && func === data[0];\n }\n\n /**\n * Checks if `func` has its source masked.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` is masked, else `false`.\n */\n function isMasked(func) {\n return !!maskSrcKey && (maskSrcKey in func);\n }\n\n /**\n * Checks if `func` is capable of being masked.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `func` is maskable, else `false`.\n */\n var isMaskable = coreJsData ? isFunction : stubFalse;\n\n /**\n * Checks if `value` is likely a prototype object.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.\n */\n function isPrototype(value) {\n var Ctor = value && value.constructor,\n proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;\n\n return value === proto;\n }\n\n /**\n * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` if suitable for strict\n * equality comparisons, else `false`.\n */\n function isStrictComparable(value) {\n return value === value && !isObject(value);\n }\n\n /**\n * A specialized version of `matchesProperty` for source values suitable\n * for strict equality comparisons, i.e. `===`.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @param {*} srcValue The value to match.\n * @returns {Function} Returns the new spec function.\n */\n function matchesStrictComparable(key, srcValue) {\n return function(object) {\n if (object == null) {\n return false;\n }\n return object[key] === srcValue &&\n (srcValue !== undefined || (key in Object(object)));\n };\n }\n\n /**\n * A specialized version of `_.memoize` which clears the memoized function's\n * cache when it exceeds `MAX_MEMOIZE_SIZE`.\n *\n * @private\n * @param {Function} func The function to have its output memoized.\n * @returns {Function} Returns the new memoized function.\n */\n function memoizeCapped(func) {\n var result = memoize(func, function(key) {\n if (cache.size === MAX_MEMOIZE_SIZE) {\n cache.clear();\n }\n return key;\n });\n\n var cache = result.cache;\n return result;\n }\n\n /**\n * Merges the function metadata of `source` into `data`.\n *\n * Merging metadata reduces the number of wrappers used to invoke a function.\n * This is possible because methods like `_.bind`, `_.curry`, and `_.partial`\n * may be applied regardless of execution order. Methods like `_.ary` and\n * `_.rearg` modify function arguments, making the order in which they are\n * executed important, preventing the merging of metadata. However, we make\n * an exception for a safe combined case where curried functions have `_.ary`\n * and or `_.rearg` applied.\n *\n * @private\n * @param {Array} data The destination metadata.\n * @param {Array} source The source metadata.\n * @returns {Array} Returns `data`.\n */\n function mergeData(data, source) {\n var bitmask = data[1],\n srcBitmask = source[1],\n newBitmask = bitmask | srcBitmask,\n isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG);\n\n var isCombo =\n ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) ||\n ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) ||\n ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG));\n\n // Exit early if metadata can't be merged.\n if (!(isCommon || isCombo)) {\n return data;\n }\n // Use source `thisArg` if available.\n if (srcBitmask & WRAP_BIND_FLAG) {\n data[2] = source[2];\n // Set when currying a bound function.\n newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG;\n }\n // Compose partial arguments.\n var value = source[3];\n if (value) {\n var partials = data[3];\n data[3] = partials ? composeArgs(partials, value, source[4]) : value;\n data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4];\n }\n // Compose partial right arguments.\n value = source[5];\n if (value) {\n partials = data[5];\n data[5] = partials ? composeArgsRight(partials, value, source[6]) : value;\n data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6];\n }\n // Use source `argPos` if available.\n value = source[7];\n if (value) {\n data[7] = value;\n }\n // Use source `ary` if it's smaller.\n if (srcBitmask & WRAP_ARY_FLAG) {\n data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);\n }\n // Use source `arity` if one is not provided.\n if (data[9] == null) {\n data[9] = source[9];\n }\n // Use source `func` and merge bitmasks.\n data[0] = source[0];\n data[1] = newBitmask;\n\n return data;\n }\n\n /**\n * This function is like\n * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * except that it includes inherited enumerable properties.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\n function nativeKeysIn(object) {\n var result = [];\n if (object != null) {\n for (var key in Object(object)) {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * Converts `value` to a string using `Object.prototype.toString`.\n *\n * @private\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n */\n function objectToString(value) {\n return nativeObjectToString.call(value);\n }\n\n /**\n * A specialized version of `baseRest` which transforms the rest array.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @param {Function} transform The rest array transform.\n * @returns {Function} Returns the new function.\n */\n function overRest(func, start, transform) {\n start = nativeMax(start === undefined ? (func.length - 1) : start, 0);\n return function() {\n var args = arguments,\n index = -1,\n length = nativeMax(args.length - start, 0),\n array = Array(length);\n\n while (++index < length) {\n array[index] = args[start + index];\n }\n index = -1;\n var otherArgs = Array(start + 1);\n while (++index < start) {\n otherArgs[index] = args[index];\n }\n otherArgs[start] = transform(array);\n return apply(func, this, otherArgs);\n };\n }\n\n /**\n * Gets the parent value at `path` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} path The path to get the parent value of.\n * @returns {*} Returns the parent value.\n */\n function parent(object, path) {\n return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1));\n }\n\n /**\n * Reorder `array` according to the specified indexes where the element at\n * the first index is assigned as the first element, the element at\n * the second index is assigned as the second element, and so on.\n *\n * @private\n * @param {Array} array The array to reorder.\n * @param {Array} indexes The arranged array indexes.\n * @returns {Array} Returns `array`.\n */\n function reorder(array, indexes) {\n var arrLength = array.length,\n length = nativeMin(indexes.length, arrLength),\n oldArray = copyArray(array);\n\n while (length--) {\n var index = indexes[length];\n array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;\n }\n return array;\n }\n\n /**\n * Gets the value at `key`, unless `key` is \"__proto__\" or \"constructor\".\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\n function safeGet(object, key) {\n if (key === 'constructor' && typeof object[key] === 'function') {\n return;\n }\n\n if (key == '__proto__') {\n return;\n }\n\n return object[key];\n }\n\n /**\n * Sets metadata for `func`.\n *\n * **Note:** If this function becomes hot, i.e. is invoked a lot in a short\n * period of time, it will trip its breaker and transition to an identity\n * function to avoid garbage collection pauses in V8. See\n * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070)\n * for more details.\n *\n * @private\n * @param {Function} func The function to associate metadata with.\n * @param {*} data The metadata.\n * @returns {Function} Returns `func`.\n */\n var setData = shortOut(baseSetData);\n\n /**\n * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout).\n *\n * @private\n * @param {Function} func The function to delay.\n * @param {number} wait The number of milliseconds to delay invocation.\n * @returns {number|Object} Returns the timer id or timeout object.\n */\n var setTimeout = ctxSetTimeout || function(func, wait) {\n return root.setTimeout(func, wait);\n };\n\n /**\n * Sets the `toString` method of `func` to return `string`.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\n var setToString = shortOut(baseSetToString);\n\n /**\n * Sets the `toString` method of `wrapper` to mimic the source of `reference`\n * with wrapper details in a comment at the top of the source body.\n *\n * @private\n * @param {Function} wrapper The function to modify.\n * @param {Function} reference The reference function.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @returns {Function} Returns `wrapper`.\n */\n function setWrapToString(wrapper, reference, bitmask) {\n var source = (reference + '');\n return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask)));\n }\n\n /**\n * Creates a function that'll short out and invoke `identity` instead\n * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`\n * milliseconds.\n *\n * @private\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new shortable function.\n */\n function shortOut(func) {\n var count = 0,\n lastCalled = 0;\n\n return function() {\n var stamp = nativeNow(),\n remaining = HOT_SPAN - (stamp - lastCalled);\n\n lastCalled = stamp;\n if (remaining > 0) {\n if (++count >= HOT_COUNT) {\n return arguments[0];\n }\n } else {\n count = 0;\n }\n return func.apply(undefined, arguments);\n };\n }\n\n /**\n * A specialized version of `_.shuffle` which mutates and sets the size of `array`.\n *\n * @private\n * @param {Array} array The array to shuffle.\n * @param {number} [size=array.length] The size of `array`.\n * @returns {Array} Returns `array`.\n */\n function shuffleSelf(array, size) {\n var index = -1,\n length = array.length,\n lastIndex = length - 1;\n\n size = size === undefined ? length : size;\n while (++index < size) {\n var rand = baseRandom(index, lastIndex),\n value = array[rand];\n\n array[rand] = array[index];\n array[index] = value;\n }\n array.length = size;\n return array;\n }\n\n /**\n * Converts `string` to a property path array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the property path array.\n */\n var stringToPath = memoizeCapped(function(string) {\n var result = [];\n if (string.charCodeAt(0) === 46 /* . */) {\n result.push('');\n }\n string.replace(rePropName, function(match, number, quote, subString) {\n result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match));\n });\n return result;\n });\n\n /**\n * Converts `value` to a string key if it's not a string or symbol.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {string|symbol} Returns the key.\n */\n function toKey(value) {\n if (typeof value == 'string' || isSymbol(value)) {\n return value;\n }\n var result = (value + '');\n return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n }\n\n /**\n * Converts `func` to its source code.\n *\n * @private\n * @param {Function} func The function to convert.\n * @returns {string} Returns the source code.\n */\n function toSource(func) {\n if (func != null) {\n try {\n return funcToString.call(func);\n } catch (e) {}\n try {\n return (func + '');\n } catch (e) {}\n }\n return '';\n }\n\n /**\n * Updates wrapper `details` based on `bitmask` flags.\n *\n * @private\n * @returns {Array} details The details to modify.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @returns {Array} Returns `details`.\n */\n function updateWrapDetails(details, bitmask) {\n arrayEach(wrapFlags, function(pair) {\n var value = '_.' + pair[0];\n if ((bitmask & pair[1]) && !arrayIncludes(details, value)) {\n details.push(value);\n }\n });\n return details.sort();\n }\n\n /**\n * Creates a clone of `wrapper`.\n *\n * @private\n * @param {Object} wrapper The wrapper to clone.\n * @returns {Object} Returns the cloned wrapper.\n */\n function wrapperClone(wrapper) {\n if (wrapper instanceof LazyWrapper) {\n return wrapper.clone();\n }\n var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__);\n result.__actions__ = copyArray(wrapper.__actions__);\n result.__index__ = wrapper.__index__;\n result.__values__ = wrapper.__values__;\n return result;\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an array of elements split into groups the length of `size`.\n * If `array` can't be split evenly, the final chunk will be the remaining\n * elements.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to process.\n * @param {number} [size=1] The length of each chunk\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the new array of chunks.\n * @example\n *\n * _.chunk(['a', 'b', 'c', 'd'], 2);\n * // => [['a', 'b'], ['c', 'd']]\n *\n * _.chunk(['a', 'b', 'c', 'd'], 3);\n * // => [['a', 'b', 'c'], ['d']]\n */\n function chunk(array, size, guard) {\n if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) {\n size = 1;\n } else {\n size = nativeMax(toInteger(size), 0);\n }\n var length = array == null ? 0 : array.length;\n if (!length || size < 1) {\n return [];\n }\n var index = 0,\n resIndex = 0,\n result = Array(nativeCeil(length / size));\n\n while (index < length) {\n result[resIndex++] = baseSlice(array, index, (index += size));\n }\n return result;\n }\n\n /**\n * Creates an array with all falsey values removed. The values `false`, `null`,\n * `0`, `\"\"`, `undefined`, and `NaN` are falsey.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to compact.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * _.compact([0, 1, false, 2, '', 3]);\n * // => [1, 2, 3]\n */\n function compact(array) {\n var index = -1,\n length = array == null ? 0 : array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (value) {\n result[resIndex++] = value;\n }\n }\n return result;\n }\n\n /**\n * Creates a new array concatenating `array` with any additional arrays\n * and/or values.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to concatenate.\n * @param {...*} [values] The values to concatenate.\n * @returns {Array} Returns the new concatenated array.\n * @example\n *\n * var array = [1];\n * var other = _.concat(array, 2, [3], [[4]]);\n *\n * console.log(other);\n * // => [1, 2, 3, [4]]\n *\n * console.log(array);\n * // => [1]\n */\n function concat() {\n var length = arguments.length;\n if (!length) {\n return [];\n }\n var args = Array(length - 1),\n array = arguments[0],\n index = length;\n\n while (index--) {\n args[index - 1] = arguments[index];\n }\n return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1));\n }\n\n /**\n * Creates an array of `array` values not included in the other given arrays\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons. The order and references of result values are\n * determined by the first array.\n *\n * **Note:** Unlike `_.pullAll`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...Array} [values] The values to exclude.\n * @returns {Array} Returns the new array of filtered values.\n * @see _.without, _.xor\n * @example\n *\n * _.difference([2, 1], [2, 3]);\n * // => [1]\n */\n var difference = baseRest(function(array, values) {\n return isArrayLikeObject(array)\n ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true))\n : [];\n });\n\n /**\n * This method is like `_.difference` except that it accepts `iteratee` which\n * is invoked for each element of `array` and `values` to generate the criterion\n * by which they're compared. The order and references of result values are\n * determined by the first array. The iteratee is invoked with one argument:\n * (value).\n *\n * **Note:** Unlike `_.pullAllBy`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...Array} [values] The values to exclude.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n * // => [1.2]\n *\n * // The `_.property` iteratee shorthand.\n * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');\n * // => [{ 'x': 2 }]\n */\n var differenceBy = baseRest(function(array, values) {\n var iteratee = last(values);\n if (isArrayLikeObject(iteratee)) {\n iteratee = undefined;\n }\n return isArrayLikeObject(array)\n ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2))\n : [];\n });\n\n /**\n * This method is like `_.difference` except that it accepts `comparator`\n * which is invoked to compare elements of `array` to `values`. The order and\n * references of result values are determined by the first array. The comparator\n * is invoked with two arguments: (arrVal, othVal).\n *\n * **Note:** Unlike `_.pullAllWith`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...Array} [values] The values to exclude.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n *\n * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);\n * // => [{ 'x': 2, 'y': 1 }]\n */\n var differenceWith = baseRest(function(array, values) {\n var comparator = last(values);\n if (isArrayLikeObject(comparator)) {\n comparator = undefined;\n }\n return isArrayLikeObject(array)\n ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator)\n : [];\n });\n\n /**\n * Creates a slice of `array` with `n` elements dropped from the beginning.\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to drop.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.drop([1, 2, 3]);\n * // => [2, 3]\n *\n * _.drop([1, 2, 3], 2);\n * // => [3]\n *\n * _.drop([1, 2, 3], 5);\n * // => []\n *\n * _.drop([1, 2, 3], 0);\n * // => [1, 2, 3]\n */\n function drop(array, n, guard) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n return baseSlice(array, n < 0 ? 0 : n, length);\n }\n\n /**\n * Creates a slice of `array` with `n` elements dropped from the end.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to drop.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.dropRight([1, 2, 3]);\n * // => [1, 2]\n *\n * _.dropRight([1, 2, 3], 2);\n * // => [1]\n *\n * _.dropRight([1, 2, 3], 5);\n * // => []\n *\n * _.dropRight([1, 2, 3], 0);\n * // => [1, 2, 3]\n */\n function dropRight(array, n, guard) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n n = length - n;\n return baseSlice(array, 0, n < 0 ? 0 : n);\n }\n\n /**\n * Creates a slice of `array` excluding elements dropped from the end.\n * Elements are dropped until `predicate` returns falsey. The predicate is\n * invoked with three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': false }\n * ];\n *\n * _.dropRightWhile(users, function(o) { return !o.active; });\n * // => objects for ['barney']\n *\n * // The `_.matches` iteratee shorthand.\n * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false });\n * // => objects for ['barney', 'fred']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.dropRightWhile(users, ['active', false]);\n * // => objects for ['barney']\n *\n * // The `_.property` iteratee shorthand.\n * _.dropRightWhile(users, 'active');\n * // => objects for ['barney', 'fred', 'pebbles']\n */\n function dropRightWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3), true, true)\n : [];\n }\n\n /**\n * Creates a slice of `array` excluding elements dropped from the beginning.\n * Elements are dropped until `predicate` returns falsey. The predicate is\n * invoked with three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': false },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': true }\n * ];\n *\n * _.dropWhile(users, function(o) { return !o.active; });\n * // => objects for ['pebbles']\n *\n * // The `_.matches` iteratee shorthand.\n * _.dropWhile(users, { 'user': 'barney', 'active': false });\n * // => objects for ['fred', 'pebbles']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.dropWhile(users, ['active', false]);\n * // => objects for ['pebbles']\n *\n * // The `_.property` iteratee shorthand.\n * _.dropWhile(users, 'active');\n * // => objects for ['barney', 'fred', 'pebbles']\n */\n function dropWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3), true)\n : [];\n }\n\n /**\n * Fills elements of `array` with `value` from `start` up to, but not\n * including, `end`.\n *\n * **Note:** This method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 3.2.0\n * @category Array\n * @param {Array} array The array to fill.\n * @param {*} value The value to fill `array` with.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [1, 2, 3];\n *\n * _.fill(array, 'a');\n * console.log(array);\n * // => ['a', 'a', 'a']\n *\n * _.fill(Array(3), 2);\n * // => [2, 2, 2]\n *\n * _.fill([4, 6, 8, 10], '*', 1, 3);\n * // => [4, '*', '*', 10]\n */\n function fill(array, value, start, end) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {\n start = 0;\n end = length;\n }\n return baseFill(array, value, start, end);\n }\n\n /**\n * This method is like `_.find` except that it returns the index of the first\n * element `predicate` returns truthy for instead of the element itself.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=0] The index to search from.\n * @returns {number} Returns the index of the found element, else `-1`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': false },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': true }\n * ];\n *\n * _.findIndex(users, function(o) { return o.user == 'barney'; });\n * // => 0\n *\n * // The `_.matches` iteratee shorthand.\n * _.findIndex(users, { 'user': 'fred', 'active': false });\n * // => 1\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findIndex(users, ['active', false]);\n * // => 0\n *\n * // The `_.property` iteratee shorthand.\n * _.findIndex(users, 'active');\n * // => 2\n */\n function findIndex(array, predicate, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = fromIndex == null ? 0 : toInteger(fromIndex);\n if (index < 0) {\n index = nativeMax(length + index, 0);\n }\n return baseFindIndex(array, getIteratee(predicate, 3), index);\n }\n\n /**\n * This method is like `_.findIndex` except that it iterates over elements\n * of `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=array.length-1] The index to search from.\n * @returns {number} Returns the index of the found element, else `-1`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': false }\n * ];\n *\n * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; });\n * // => 2\n *\n * // The `_.matches` iteratee shorthand.\n * _.findLastIndex(users, { 'user': 'barney', 'active': true });\n * // => 0\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findLastIndex(users, ['active', false]);\n * // => 2\n *\n * // The `_.property` iteratee shorthand.\n * _.findLastIndex(users, 'active');\n * // => 0\n */\n function findLastIndex(array, predicate, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = length - 1;\n if (fromIndex !== undefined) {\n index = toInteger(fromIndex);\n index = fromIndex < 0\n ? nativeMax(length + index, 0)\n : nativeMin(index, length - 1);\n }\n return baseFindIndex(array, getIteratee(predicate, 3), index, true);\n }\n\n /**\n * Flattens `array` a single level deep.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to flatten.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * _.flatten([1, [2, [3, [4]], 5]]);\n * // => [1, 2, [3, [4]], 5]\n */\n function flatten(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseFlatten(array, 1) : [];\n }\n\n /**\n * Recursively flattens `array`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to flatten.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * _.flattenDeep([1, [2, [3, [4]], 5]]);\n * // => [1, 2, 3, 4, 5]\n */\n function flattenDeep(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseFlatten(array, INFINITY) : [];\n }\n\n /**\n * Recursively flatten `array` up to `depth` times.\n *\n * @static\n * @memberOf _\n * @since 4.4.0\n * @category Array\n * @param {Array} array The array to flatten.\n * @param {number} [depth=1] The maximum recursion depth.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * var array = [1, [2, [3, [4]], 5]];\n *\n * _.flattenDepth(array, 1);\n * // => [1, 2, [3, [4]], 5]\n *\n * _.flattenDepth(array, 2);\n * // => [1, 2, 3, [4], 5]\n */\n function flattenDepth(array, depth) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n depth = depth === undefined ? 1 : toInteger(depth);\n return baseFlatten(array, depth);\n }\n\n /**\n * The inverse of `_.toPairs`; this method returns an object composed\n * from key-value `pairs`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} pairs The key-value pairs.\n * @returns {Object} Returns the new object.\n * @example\n *\n * _.fromPairs([['a', 1], ['b', 2]]);\n * // => { 'a': 1, 'b': 2 }\n */\n function fromPairs(pairs) {\n var index = -1,\n length = pairs == null ? 0 : pairs.length,\n result = {};\n\n while (++index < length) {\n var pair = pairs[index];\n result[pair[0]] = pair[1];\n }\n return result;\n }\n\n /**\n * Gets the first element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @alias first\n * @category Array\n * @param {Array} array The array to query.\n * @returns {*} Returns the first element of `array`.\n * @example\n *\n * _.head([1, 2, 3]);\n * // => 1\n *\n * _.head([]);\n * // => undefined\n */\n function head(array) {\n return (array && array.length) ? array[0] : undefined;\n }\n\n /**\n * Gets the index at which the first occurrence of `value` is found in `array`\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons. If `fromIndex` is negative, it's used as the\n * offset from the end of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} [fromIndex=0] The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.indexOf([1, 2, 1, 2], 2);\n * // => 1\n *\n * // Search from the `fromIndex`.\n * _.indexOf([1, 2, 1, 2], 2, 2);\n * // => 3\n */\n function indexOf(array, value, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = fromIndex == null ? 0 : toInteger(fromIndex);\n if (index < 0) {\n index = nativeMax(length + index, 0);\n }\n return baseIndexOf(array, value, index);\n }\n\n /**\n * Gets all but the last element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.initial([1, 2, 3]);\n * // => [1, 2]\n */\n function initial(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseSlice(array, 0, -1) : [];\n }\n\n /**\n * Creates an array of unique values that are included in all given arrays\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons. The order and references of result values are\n * determined by the first array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @returns {Array} Returns the new array of intersecting values.\n * @example\n *\n * _.intersection([2, 1], [2, 3]);\n * // => [2]\n */\n var intersection = baseRest(function(arrays) {\n var mapped = arrayMap(arrays, castArrayLikeObject);\n return (mapped.length && mapped[0] === arrays[0])\n ? baseIntersection(mapped)\n : [];\n });\n\n /**\n * This method is like `_.intersection` except that it accepts `iteratee`\n * which is invoked for each element of each `arrays` to generate the criterion\n * by which they're compared. The order and references of result values are\n * determined by the first array. The iteratee is invoked with one argument:\n * (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of intersecting values.\n * @example\n *\n * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n * // => [2.1]\n *\n * // The `_.property` iteratee shorthand.\n * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 1 }]\n */\n var intersectionBy = baseRest(function(arrays) {\n var iteratee = last(arrays),\n mapped = arrayMap(arrays, castArrayLikeObject);\n\n if (iteratee === last(mapped)) {\n iteratee = undefined;\n } else {\n mapped.pop();\n }\n return (mapped.length && mapped[0] === arrays[0])\n ? baseIntersection(mapped, getIteratee(iteratee, 2))\n : [];\n });\n\n /**\n * This method is like `_.intersection` except that it accepts `comparator`\n * which is invoked to compare elements of `arrays`. The order and references\n * of result values are determined by the first array. The comparator is\n * invoked with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of intersecting values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.intersectionWith(objects, others, _.isEqual);\n * // => [{ 'x': 1, 'y': 2 }]\n */\n var intersectionWith = baseRest(function(arrays) {\n var comparator = last(arrays),\n mapped = arrayMap(arrays, castArrayLikeObject);\n\n comparator = typeof comparator == 'function' ? comparator : undefined;\n if (comparator) {\n mapped.pop();\n }\n return (mapped.length && mapped[0] === arrays[0])\n ? baseIntersection(mapped, undefined, comparator)\n : [];\n });\n\n /**\n * Converts all elements in `array` into a string separated by `separator`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to convert.\n * @param {string} [separator=','] The element separator.\n * @returns {string} Returns the joined string.\n * @example\n *\n * _.join(['a', 'b', 'c'], '~');\n * // => 'a~b~c'\n */\n function join(array, separator) {\n return array == null ? '' : nativeJoin.call(array, separator);\n }\n\n /**\n * Gets the last element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {*} Returns the last element of `array`.\n * @example\n *\n * _.last([1, 2, 3]);\n * // => 3\n */\n function last(array) {\n var length = array == null ? 0 : array.length;\n return length ? array[length - 1] : undefined;\n }\n\n /**\n * This method is like `_.indexOf` except that it iterates over elements of\n * `array` from right to left.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} [fromIndex=array.length-1] The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.lastIndexOf([1, 2, 1, 2], 2);\n * // => 3\n *\n * // Search from the `fromIndex`.\n * _.lastIndexOf([1, 2, 1, 2], 2, 2);\n * // => 1\n */\n function lastIndexOf(array, value, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = length;\n if (fromIndex !== undefined) {\n index = toInteger(fromIndex);\n index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1);\n }\n return value === value\n ? strictLastIndexOf(array, value, index)\n : baseFindIndex(array, baseIsNaN, index, true);\n }\n\n /**\n * Gets the element at index `n` of `array`. If `n` is negative, the nth\n * element from the end is returned.\n *\n * @static\n * @memberOf _\n * @since 4.11.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=0] The index of the element to return.\n * @returns {*} Returns the nth element of `array`.\n * @example\n *\n * var array = ['a', 'b', 'c', 'd'];\n *\n * _.nth(array, 1);\n * // => 'b'\n *\n * _.nth(array, -2);\n * // => 'c';\n */\n function nth(array, n) {\n return (array && array.length) ? baseNth(array, toInteger(n)) : undefined;\n }\n\n /**\n * Removes all given values from `array` using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`\n * to remove elements from an array by predicate.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {...*} [values] The values to remove.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = ['a', 'b', 'c', 'a', 'b', 'c'];\n *\n * _.pull(array, 'a', 'c');\n * console.log(array);\n * // => ['b', 'b']\n */\n var pull = baseRest(pullAll);\n\n /**\n * This method is like `_.pull` except that it accepts an array of values to remove.\n *\n * **Note:** Unlike `_.difference`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = ['a', 'b', 'c', 'a', 'b', 'c'];\n *\n * _.pullAll(array, ['a', 'c']);\n * console.log(array);\n * // => ['b', 'b']\n */\n function pullAll(array, values) {\n return (array && array.length && values && values.length)\n ? basePullAll(array, values)\n : array;\n }\n\n /**\n * This method is like `_.pullAll` except that it accepts `iteratee` which is\n * invoked for each element of `array` and `values` to generate the criterion\n * by which they're compared. The iteratee is invoked with one argument: (value).\n *\n * **Note:** Unlike `_.differenceBy`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }];\n *\n * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x');\n * console.log(array);\n * // => [{ 'x': 2 }]\n */\n function pullAllBy(array, values, iteratee) {\n return (array && array.length && values && values.length)\n ? basePullAll(array, values, getIteratee(iteratee, 2))\n : array;\n }\n\n /**\n * This method is like `_.pullAll` except that it accepts `comparator` which\n * is invoked to compare elements of `array` to `values`. The comparator is\n * invoked with two arguments: (arrVal, othVal).\n *\n * **Note:** Unlike `_.differenceWith`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }];\n *\n * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual);\n * console.log(array);\n * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }]\n */\n function pullAllWith(array, values, comparator) {\n return (array && array.length && values && values.length)\n ? basePullAll(array, values, undefined, comparator)\n : array;\n }\n\n /**\n * Removes elements from `array` corresponding to `indexes` and returns an\n * array of removed elements.\n *\n * **Note:** Unlike `_.at`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {...(number|number[])} [indexes] The indexes of elements to remove.\n * @returns {Array} Returns the new array of removed elements.\n * @example\n *\n * var array = ['a', 'b', 'c', 'd'];\n * var pulled = _.pullAt(array, [1, 3]);\n *\n * console.log(array);\n * // => ['a', 'c']\n *\n * console.log(pulled);\n * // => ['b', 'd']\n */\n var pullAt = flatRest(function(array, indexes) {\n var length = array == null ? 0 : array.length,\n result = baseAt(array, indexes);\n\n basePullAt(array, arrayMap(indexes, function(index) {\n return isIndex(index, length) ? +index : index;\n }).sort(compareAscending));\n\n return result;\n });\n\n /**\n * Removes all elements from `array` that `predicate` returns truthy for\n * and returns an array of the removed elements. The predicate is invoked\n * with three arguments: (value, index, array).\n *\n * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull`\n * to pull elements from an array by value.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new array of removed elements.\n * @example\n *\n * var array = [1, 2, 3, 4];\n * var evens = _.remove(array, function(n) {\n * return n % 2 == 0;\n * });\n *\n * console.log(array);\n * // => [1, 3]\n *\n * console.log(evens);\n * // => [2, 4]\n */\n function remove(array, predicate) {\n var result = [];\n if (!(array && array.length)) {\n return result;\n }\n var index = -1,\n indexes = [],\n length = array.length;\n\n predicate = getIteratee(predicate, 3);\n while (++index < length) {\n var value = array[index];\n if (predicate(value, index, array)) {\n result.push(value);\n indexes.push(index);\n }\n }\n basePullAt(array, indexes);\n return result;\n }\n\n /**\n * Reverses `array` so that the first element becomes the last, the second\n * element becomes the second to last, and so on.\n *\n * **Note:** This method mutates `array` and is based on\n * [`Array#reverse`](https://mdn.io/Array/reverse).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [1, 2, 3];\n *\n * _.reverse(array);\n * // => [3, 2, 1]\n *\n * console.log(array);\n * // => [3, 2, 1]\n */\n function reverse(array) {\n return array == null ? array : nativeReverse.call(array);\n }\n\n /**\n * Creates a slice of `array` from `start` up to, but not including, `end`.\n *\n * **Note:** This method is used instead of\n * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are\n * returned.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to slice.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the slice of `array`.\n */\n function slice(array, start, end) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {\n start = 0;\n end = length;\n }\n else {\n start = start == null ? 0 : toInteger(start);\n end = end === undefined ? length : toInteger(end);\n }\n return baseSlice(array, start, end);\n }\n\n /**\n * Uses a binary search to determine the lowest index at which `value`\n * should be inserted into `array` in order to maintain its sort order.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * _.sortedIndex([30, 50], 40);\n * // => 1\n */\n function sortedIndex(array, value) {\n return baseSortedIndex(array, value);\n }\n\n /**\n * This method is like `_.sortedIndex` except that it accepts `iteratee`\n * which is invoked for `value` and each element of `array` to compute their\n * sort ranking. The iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * var objects = [{ 'x': 4 }, { 'x': 5 }];\n *\n * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });\n * // => 0\n *\n * // The `_.property` iteratee shorthand.\n * _.sortedIndexBy(objects, { 'x': 4 }, 'x');\n * // => 0\n */\n function sortedIndexBy(array, value, iteratee) {\n return baseSortedIndexBy(array, value, getIteratee(iteratee, 2));\n }\n\n /**\n * This method is like `_.indexOf` except that it performs a binary\n * search on a sorted `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.sortedIndexOf([4, 5, 5, 5, 6], 5);\n * // => 1\n */\n function sortedIndexOf(array, value) {\n var length = array == null ? 0 : array.length;\n if (length) {\n var index = baseSortedIndex(array, value);\n if (index < length && eq(array[index], value)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * This method is like `_.sortedIndex` except that it returns the highest\n * index at which `value` should be inserted into `array` in order to\n * maintain its sort order.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * _.sortedLastIndex([4, 5, 5, 5, 6], 5);\n * // => 4\n */\n function sortedLastIndex(array, value) {\n return baseSortedIndex(array, value, true);\n }\n\n /**\n * This method is like `_.sortedLastIndex` except that it accepts `iteratee`\n * which is invoked for `value` and each element of `array` to compute their\n * sort ranking. The iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * var objects = [{ 'x': 4 }, { 'x': 5 }];\n *\n * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });\n * // => 1\n *\n * // The `_.property` iteratee shorthand.\n * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');\n * // => 1\n */\n function sortedLastIndexBy(array, value, iteratee) {\n return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true);\n }\n\n /**\n * This method is like `_.lastIndexOf` except that it performs a binary\n * search on a sorted `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);\n * // => 3\n */\n function sortedLastIndexOf(array, value) {\n var length = array == null ? 0 : array.length;\n if (length) {\n var index = baseSortedIndex(array, value, true) - 1;\n if (eq(array[index], value)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * This method is like `_.uniq` except that it's designed and optimized\n * for sorted arrays.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.sortedUniq([1, 1, 2]);\n * // => [1, 2]\n */\n function sortedUniq(array) {\n return (array && array.length)\n ? baseSortedUniq(array)\n : [];\n }\n\n /**\n * This method is like `_.uniqBy` except that it's designed and optimized\n * for sorted arrays.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);\n * // => [1.1, 2.3]\n */\n function sortedUniqBy(array, iteratee) {\n return (array && array.length)\n ? baseSortedUniq(array, getIteratee(iteratee, 2))\n : [];\n }\n\n /**\n * Gets all but the first element of `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.tail([1, 2, 3]);\n * // => [2, 3]\n */\n function tail(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseSlice(array, 1, length) : [];\n }\n\n /**\n * Creates a slice of `array` with `n` elements taken from the beginning.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to take.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.take([1, 2, 3]);\n * // => [1]\n *\n * _.take([1, 2, 3], 2);\n * // => [1, 2]\n *\n * _.take([1, 2, 3], 5);\n * // => [1, 2, 3]\n *\n * _.take([1, 2, 3], 0);\n * // => []\n */\n function take(array, n, guard) {\n if (!(array && array.length)) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n return baseSlice(array, 0, n < 0 ? 0 : n);\n }\n\n /**\n * Creates a slice of `array` with `n` elements taken from the end.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to take.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.takeRight([1, 2, 3]);\n * // => [3]\n *\n * _.takeRight([1, 2, 3], 2);\n * // => [2, 3]\n *\n * _.takeRight([1, 2, 3], 5);\n * // => [1, 2, 3]\n *\n * _.takeRight([1, 2, 3], 0);\n * // => []\n */\n function takeRight(array, n, guard) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n n = length - n;\n return baseSlice(array, n < 0 ? 0 : n, length);\n }\n\n /**\n * Creates a slice of `array` with elements taken from the end. Elements are\n * taken until `predicate` returns falsey. The predicate is invoked with\n * three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': false }\n * ];\n *\n * _.takeRightWhile(users, function(o) { return !o.active; });\n * // => objects for ['fred', 'pebbles']\n *\n * // The `_.matches` iteratee shorthand.\n * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false });\n * // => objects for ['pebbles']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.takeRightWhile(users, ['active', false]);\n * // => objects for ['fred', 'pebbles']\n *\n * // The `_.property` iteratee shorthand.\n * _.takeRightWhile(users, 'active');\n * // => []\n */\n function takeRightWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3), false, true)\n : [];\n }\n\n /**\n * Creates a slice of `array` with elements taken from the beginning. Elements\n * are taken until `predicate` returns falsey. The predicate is invoked with\n * three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': false },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': true }\n * ];\n *\n * _.takeWhile(users, function(o) { return !o.active; });\n * // => objects for ['barney', 'fred']\n *\n * // The `_.matches` iteratee shorthand.\n * _.takeWhile(users, { 'user': 'barney', 'active': false });\n * // => objects for ['barney']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.takeWhile(users, ['active', false]);\n * // => objects for ['barney', 'fred']\n *\n * // The `_.property` iteratee shorthand.\n * _.takeWhile(users, 'active');\n * // => []\n */\n function takeWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3))\n : [];\n }\n\n /**\n * Creates an array of unique values, in order, from all given arrays using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @returns {Array} Returns the new array of combined values.\n * @example\n *\n * _.union([2], [1, 2]);\n * // => [2, 1]\n */\n var union = baseRest(function(arrays) {\n return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true));\n });\n\n /**\n * This method is like `_.union` except that it accepts `iteratee` which is\n * invoked for each element of each `arrays` to generate the criterion by\n * which uniqueness is computed. Result values are chosen from the first\n * array in which the value occurs. The iteratee is invoked with one argument:\n * (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of combined values.\n * @example\n *\n * _.unionBy([2.1], [1.2, 2.3], Math.floor);\n * // => [2.1, 1.2]\n *\n * // The `_.property` iteratee shorthand.\n * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 1 }, { 'x': 2 }]\n */\n var unionBy = baseRest(function(arrays) {\n var iteratee = last(arrays);\n if (isArrayLikeObject(iteratee)) {\n iteratee = undefined;\n }\n return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2));\n });\n\n /**\n * This method is like `_.union` except that it accepts `comparator` which\n * is invoked to compare elements of `arrays`. Result values are chosen from\n * the first array in which the value occurs. The comparator is invoked\n * with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of combined values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.unionWith(objects, others, _.isEqual);\n * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]\n */\n var unionWith = baseRest(function(arrays) {\n var comparator = last(arrays);\n comparator = typeof comparator == 'function' ? comparator : undefined;\n return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator);\n });\n\n /**\n * Creates a duplicate-free version of an array, using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons, in which only the first occurrence of each element\n * is kept. The order of result values is determined by the order they occur\n * in the array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.uniq([2, 1, 2]);\n * // => [2, 1]\n */\n function uniq(array) {\n return (array && array.length) ? baseUniq(array) : [];\n }\n\n /**\n * This method is like `_.uniq` except that it accepts `iteratee` which is\n * invoked for each element in `array` to generate the criterion by which\n * uniqueness is computed. The order of result values is determined by the\n * order they occur in the array. The iteratee is invoked with one argument:\n * (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.uniqBy([2.1, 1.2, 2.3], Math.floor);\n * // => [2.1, 1.2]\n *\n * // The `_.property` iteratee shorthand.\n * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 1 }, { 'x': 2 }]\n */\n function uniqBy(array, iteratee) {\n return (array && array.length) ? baseUniq(array, getIteratee(iteratee, 2)) : [];\n }\n\n /**\n * This method is like `_.uniq` except that it accepts `comparator` which\n * is invoked to compare elements of `array`. The order of result values is\n * determined by the order they occur in the array.The comparator is invoked\n * with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.uniqWith(objects, _.isEqual);\n * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]\n */\n function uniqWith(array, comparator) {\n comparator = typeof comparator == 'function' ? comparator : undefined;\n return (array && array.length) ? baseUniq(array, undefined, comparator) : [];\n }\n\n /**\n * This method is like `_.zip` except that it accepts an array of grouped\n * elements and creates an array regrouping the elements to their pre-zip\n * configuration.\n *\n * @static\n * @memberOf _\n * @since 1.2.0\n * @category Array\n * @param {Array} array The array of grouped elements to process.\n * @returns {Array} Returns the new array of regrouped elements.\n * @example\n *\n * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]);\n * // => [['a', 1, true], ['b', 2, false]]\n *\n * _.unzip(zipped);\n * // => [['a', 'b'], [1, 2], [true, false]]\n */\n function unzip(array) {\n if (!(array && array.length)) {\n return [];\n }\n var length = 0;\n array = arrayFilter(array, function(group) {\n if (isArrayLikeObject(group)) {\n length = nativeMax(group.length, length);\n return true;\n }\n });\n return baseTimes(length, function(index) {\n return arrayMap(array, baseProperty(index));\n });\n }\n\n /**\n * This method is like `_.unzip` except that it accepts `iteratee` to specify\n * how regrouped values should be combined. The iteratee is invoked with the\n * elements of each group: (...group).\n *\n * @static\n * @memberOf _\n * @since 3.8.0\n * @category Array\n * @param {Array} array The array of grouped elements to process.\n * @param {Function} [iteratee=_.identity] The function to combine\n * regrouped values.\n * @returns {Array} Returns the new array of regrouped elements.\n * @example\n *\n * var zipped = _.zip([1, 2], [10, 20], [100, 200]);\n * // => [[1, 10, 100], [2, 20, 200]]\n *\n * _.unzipWith(zipped, _.add);\n * // => [3, 30, 300]\n */\n function unzipWith(array, iteratee) {\n if (!(array && array.length)) {\n return [];\n }\n var result = unzip(array);\n if (iteratee == null) {\n return result;\n }\n return arrayMap(result, function(group) {\n return apply(iteratee, undefined, group);\n });\n }\n\n /**\n * Creates an array excluding all given values using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * **Note:** Unlike `_.pull`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...*} [values] The values to exclude.\n * @returns {Array} Returns the new array of filtered values.\n * @see _.difference, _.xor\n * @example\n *\n * _.without([2, 1, 2, 3], 1, 2);\n * // => [3]\n */\n var without = baseRest(function(array, values) {\n return isArrayLikeObject(array)\n ? baseDifference(array, values)\n : [];\n });\n\n /**\n * Creates an array of unique values that is the\n * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)\n * of the given arrays. The order of result values is determined by the order\n * they occur in the arrays.\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @returns {Array} Returns the new array of filtered values.\n * @see _.difference, _.without\n * @example\n *\n * _.xor([2, 1], [2, 3]);\n * // => [1, 3]\n */\n var xor = baseRest(function(arrays) {\n return baseXor(arrayFilter(arrays, isArrayLikeObject));\n });\n\n /**\n * This method is like `_.xor` except that it accepts `iteratee` which is\n * invoked for each element of each `arrays` to generate the criterion by\n * which by which they're compared. The order of result values is determined\n * by the order they occur in the arrays. The iteratee is invoked with one\n * argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n * // => [1.2, 3.4]\n *\n * // The `_.property` iteratee shorthand.\n * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 2 }]\n */\n var xorBy = baseRest(function(arrays) {\n var iteratee = last(arrays);\n if (isArrayLikeObject(iteratee)) {\n iteratee = undefined;\n }\n return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2));\n });\n\n /**\n * This method is like `_.xor` except that it accepts `comparator` which is\n * invoked to compare elements of `arrays`. The order of result values is\n * determined by the order they occur in the arrays. The comparator is invoked\n * with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.xorWith(objects, others, _.isEqual);\n * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]\n */\n var xorWith = baseRest(function(arrays) {\n var comparator = last(arrays);\n comparator = typeof comparator == 'function' ? comparator : undefined;\n return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator);\n });\n\n /**\n * Creates an array of grouped elements, the first of which contains the\n * first elements of the given arrays, the second of which contains the\n * second elements of the given arrays, and so on.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {...Array} [arrays] The arrays to process.\n * @returns {Array} Returns the new array of grouped elements.\n * @example\n *\n * _.zip(['a', 'b'], [1, 2], [true, false]);\n * // => [['a', 1, true], ['b', 2, false]]\n */\n var zip = baseRest(unzip);\n\n /**\n * This method is like `_.fromPairs` except that it accepts two arrays,\n * one of property identifiers and one of corresponding values.\n *\n * @static\n * @memberOf _\n * @since 0.4.0\n * @category Array\n * @param {Array} [props=[]] The property identifiers.\n * @param {Array} [values=[]] The property values.\n * @returns {Object} Returns the new object.\n * @example\n *\n * _.zipObject(['a', 'b'], [1, 2]);\n * // => { 'a': 1, 'b': 2 }\n */\n function zipObject(props, values) {\n return baseZipObject(props || [], values || [], assignValue);\n }\n\n /**\n * This method is like `_.zipObject` except that it supports property paths.\n *\n * @static\n * @memberOf _\n * @since 4.1.0\n * @category Array\n * @param {Array} [props=[]] The property identifiers.\n * @param {Array} [values=[]] The property values.\n * @returns {Object} Returns the new object.\n * @example\n *\n * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]);\n * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } }\n */\n function zipObjectDeep(props, values) {\n return baseZipObject(props || [], values || [], baseSet);\n }\n\n /**\n * This method is like `_.zip` except that it accepts `iteratee` to specify\n * how grouped values should be combined. The iteratee is invoked with the\n * elements of each group: (...group).\n *\n * @static\n * @memberOf _\n * @since 3.8.0\n * @category Array\n * @param {...Array} [arrays] The arrays to process.\n * @param {Function} [iteratee=_.identity] The function to combine\n * grouped values.\n * @returns {Array} Returns the new array of grouped elements.\n * @example\n *\n * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) {\n * return a + b + c;\n * });\n * // => [111, 222]\n */\n var zipWith = baseRest(function(arrays) {\n var length = arrays.length,\n iteratee = length > 1 ? arrays[length - 1] : undefined;\n\n iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined;\n return unzipWith(arrays, iteratee);\n });\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a `lodash` wrapper instance that wraps `value` with explicit method\n * chain sequences enabled. The result of such sequences must be unwrapped\n * with `_#value`.\n *\n * @static\n * @memberOf _\n * @since 1.3.0\n * @category Seq\n * @param {*} value The value to wrap.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36 },\n * { 'user': 'fred', 'age': 40 },\n * { 'user': 'pebbles', 'age': 1 }\n * ];\n *\n * var youngest = _\n * .chain(users)\n * .sortBy('age')\n * .map(function(o) {\n * return o.user + ' is ' + o.age;\n * })\n * .head()\n * .value();\n * // => 'pebbles is 1'\n */\n function chain(value) {\n var result = lodash(value);\n result.__chain__ = true;\n return result;\n }\n\n /**\n * This method invokes `interceptor` and returns `value`. The interceptor\n * is invoked with one argument; (value). The purpose of this method is to\n * \"tap into\" a method chain sequence in order to modify intermediate results.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Seq\n * @param {*} value The value to provide to `interceptor`.\n * @param {Function} interceptor The function to invoke.\n * @returns {*} Returns `value`.\n * @example\n *\n * _([1, 2, 3])\n * .tap(function(array) {\n * // Mutate input array.\n * array.pop();\n * })\n * .reverse()\n * .value();\n * // => [2, 1]\n */\n function tap(value, interceptor) {\n interceptor(value);\n return value;\n }\n\n /**\n * This method is like `_.tap` except that it returns the result of `interceptor`.\n * The purpose of this method is to \"pass thru\" values replacing intermediate\n * results in a method chain sequence.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Seq\n * @param {*} value The value to provide to `interceptor`.\n * @param {Function} interceptor The function to invoke.\n * @returns {*} Returns the result of `interceptor`.\n * @example\n *\n * _(' abc ')\n * .chain()\n * .trim()\n * .thru(function(value) {\n * return [value];\n * })\n * .value();\n * // => ['abc']\n */\n function thru(value, interceptor) {\n return interceptor(value);\n }\n\n /**\n * This method is the wrapper version of `_.at`.\n *\n * @name at\n * @memberOf _\n * @since 1.0.0\n * @category Seq\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n *\n * _(object).at(['a[0].b.c', 'a[1]']).value();\n * // => [3, 4]\n */\n var wrapperAt = flatRest(function(paths) {\n var length = paths.length,\n start = length ? paths[0] : 0,\n value = this.__wrapped__,\n interceptor = function(object) { return baseAt(object, paths); };\n\n if (length > 1 || this.__actions__.length ||\n !(value instanceof LazyWrapper) || !isIndex(start)) {\n return this.thru(interceptor);\n }\n value = value.slice(start, +start + (length ? 1 : 0));\n value.__actions__.push({\n 'func': thru,\n 'args': [interceptor],\n 'thisArg': undefined\n });\n return new LodashWrapper(value, this.__chain__).thru(function(array) {\n if (length && !array.length) {\n array.push(undefined);\n }\n return array;\n });\n });\n\n /**\n * Creates a `lodash` wrapper instance with explicit method chain sequences enabled.\n *\n * @name chain\n * @memberOf _\n * @since 0.1.0\n * @category Seq\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36 },\n * { 'user': 'fred', 'age': 40 }\n * ];\n *\n * // A sequence without explicit chaining.\n * _(users).head();\n * // => { 'user': 'barney', 'age': 36 }\n *\n * // A sequence with explicit chaining.\n * _(users)\n * .chain()\n * .head()\n * .pick('user')\n * .value();\n * // => { 'user': 'barney' }\n */\n function wrapperChain() {\n return chain(this);\n }\n\n /**\n * Executes the chain sequence and returns the wrapped result.\n *\n * @name commit\n * @memberOf _\n * @since 3.2.0\n * @category Seq\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var array = [1, 2];\n * var wrapped = _(array).push(3);\n *\n * console.log(array);\n * // => [1, 2]\n *\n * wrapped = wrapped.commit();\n * console.log(array);\n * // => [1, 2, 3]\n *\n * wrapped.last();\n * // => 3\n *\n * console.log(array);\n * // => [1, 2, 3]\n */\n function wrapperCommit() {\n return new LodashWrapper(this.value(), this.__chain__);\n }\n\n /**\n * Gets the next value on a wrapped object following the\n * [iterator protocol](https://mdn.io/iteration_protocols#iterator).\n *\n * @name next\n * @memberOf _\n * @since 4.0.0\n * @category Seq\n * @returns {Object} Returns the next iterator value.\n * @example\n *\n * var wrapped = _([1, 2]);\n *\n * wrapped.next();\n * // => { 'done': false, 'value': 1 }\n *\n * wrapped.next();\n * // => { 'done': false, 'value': 2 }\n *\n * wrapped.next();\n * // => { 'done': true, 'value': undefined }\n */\n function wrapperNext() {\n if (this.__values__ === undefined) {\n this.__values__ = toArray(this.value());\n }\n var done = this.__index__ >= this.__values__.length,\n value = done ? undefined : this.__values__[this.__index__++];\n\n return { 'done': done, 'value': value };\n }\n\n /**\n * Enables the wrapper to be iterable.\n *\n * @name Symbol.iterator\n * @memberOf _\n * @since 4.0.0\n * @category Seq\n * @returns {Object} Returns the wrapper object.\n * @example\n *\n * var wrapped = _([1, 2]);\n *\n * wrapped[Symbol.iterator]() === wrapped;\n * // => true\n *\n * Array.from(wrapped);\n * // => [1, 2]\n */\n function wrapperToIterator() {\n return this;\n }\n\n /**\n * Creates a clone of the chain sequence planting `value` as the wrapped value.\n *\n * @name plant\n * @memberOf _\n * @since 3.2.0\n * @category Seq\n * @param {*} value The value to plant.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * var wrapped = _([1, 2]).map(square);\n * var other = wrapped.plant([3, 4]);\n *\n * other.value();\n * // => [9, 16]\n *\n * wrapped.value();\n * // => [1, 4]\n */\n function wrapperPlant(value) {\n var result,\n parent = this;\n\n while (parent instanceof baseLodash) {\n var clone = wrapperClone(parent);\n clone.__index__ = 0;\n clone.__values__ = undefined;\n if (result) {\n previous.__wrapped__ = clone;\n } else {\n result = clone;\n }\n var previous = clone;\n parent = parent.__wrapped__;\n }\n previous.__wrapped__ = value;\n return result;\n }\n\n /**\n * This method is the wrapper version of `_.reverse`.\n *\n * **Note:** This method mutates the wrapped array.\n *\n * @name reverse\n * @memberOf _\n * @since 0.1.0\n * @category Seq\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var array = [1, 2, 3];\n *\n * _(array).reverse().value()\n * // => [3, 2, 1]\n *\n * console.log(array);\n * // => [3, 2, 1]\n */\n function wrapperReverse() {\n var value = this.__wrapped__;\n if (value instanceof LazyWrapper) {\n var wrapped = value;\n if (this.__actions__.length) {\n wrapped = new LazyWrapper(this);\n }\n wrapped = wrapped.reverse();\n wrapped.__actions__.push({\n 'func': thru,\n 'args': [reverse],\n 'thisArg': undefined\n });\n return new LodashWrapper(wrapped, this.__chain__);\n }\n return this.thru(reverse);\n }\n\n /**\n * Executes the chain sequence to resolve the unwrapped value.\n *\n * @name value\n * @memberOf _\n * @since 0.1.0\n * @alias toJSON, valueOf\n * @category Seq\n * @returns {*} Returns the resolved unwrapped value.\n * @example\n *\n * _([1, 2, 3]).value();\n * // => [1, 2, 3]\n */\n function wrapperValue() {\n return baseWrapperValue(this.__wrapped__, this.__actions__);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an object composed of keys generated from the results of running\n * each element of `collection` thru `iteratee`. The corresponding value of\n * each key is the number of times the key was returned by `iteratee`. The\n * iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n * @returns {Object} Returns the composed aggregate object.\n * @example\n *\n * _.countBy([6.1, 4.2, 6.3], Math.floor);\n * // => { '4': 1, '6': 2 }\n *\n * // The `_.property` iteratee shorthand.\n * _.countBy(['one', 'two', 'three'], 'length');\n * // => { '3': 2, '5': 1 }\n */\n var countBy = createAggregator(function(result, value, key) {\n if (hasOwnProperty.call(result, key)) {\n ++result[key];\n } else {\n baseAssignValue(result, key, 1);\n }\n });\n\n /**\n * Checks if `predicate` returns truthy for **all** elements of `collection`.\n * Iteration is stopped once `predicate` returns falsey. The predicate is\n * invoked with three arguments: (value, index|key, collection).\n *\n * **Note:** This method returns `true` for\n * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because\n * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of\n * elements of empty collections.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {boolean} Returns `true` if all elements pass the predicate check,\n * else `false`.\n * @example\n *\n * _.every([true, 1, null, 'yes'], Boolean);\n * // => false\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': false },\n * { 'user': 'fred', 'age': 40, 'active': false }\n * ];\n *\n * // The `_.matches` iteratee shorthand.\n * _.every(users, { 'user': 'barney', 'active': false });\n * // => false\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.every(users, ['active', false]);\n * // => true\n *\n * // The `_.property` iteratee shorthand.\n * _.every(users, 'active');\n * // => false\n */\n function every(collection, predicate, guard) {\n var func = isArray(collection) ? arrayEvery : baseEvery;\n if (guard && isIterateeCall(collection, predicate, guard)) {\n predicate = undefined;\n }\n return func(collection, getIteratee(predicate, 3));\n }\n\n /**\n * Iterates over elements of `collection`, returning an array of all elements\n * `predicate` returns truthy for. The predicate is invoked with three\n * arguments: (value, index|key, collection).\n *\n * **Note:** Unlike `_.remove`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n * @see _.reject\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': true },\n * { 'user': 'fred', 'age': 40, 'active': false }\n * ];\n *\n * _.filter(users, function(o) { return !o.active; });\n * // => objects for ['fred']\n *\n * // The `_.matches` iteratee shorthand.\n * _.filter(users, { 'age': 36, 'active': true });\n * // => objects for ['barney']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.filter(users, ['active', false]);\n * // => objects for ['fred']\n *\n * // The `_.property` iteratee shorthand.\n * _.filter(users, 'active');\n * // => objects for ['barney']\n */\n function filter(collection, predicate) {\n var func = isArray(collection) ? arrayFilter : baseFilter;\n return func(collection, getIteratee(predicate, 3));\n }\n\n /**\n * Iterates over elements of `collection`, returning the first element\n * `predicate` returns truthy for. The predicate is invoked with three\n * arguments: (value, index|key, collection).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=0] The index to search from.\n * @returns {*} Returns the matched element, else `undefined`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': true },\n * { 'user': 'fred', 'age': 40, 'active': false },\n * { 'user': 'pebbles', 'age': 1, 'active': true }\n * ];\n *\n * _.find(users, function(o) { return o.age < 40; });\n * // => object for 'barney'\n *\n * // The `_.matches` iteratee shorthand.\n * _.find(users, { 'age': 1, 'active': true });\n * // => object for 'pebbles'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.find(users, ['active', false]);\n * // => object for 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.find(users, 'active');\n * // => object for 'barney'\n */\n var find = createFind(findIndex);\n\n /**\n * This method is like `_.find` except that it iterates over elements of\n * `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=collection.length-1] The index to search from.\n * @returns {*} Returns the matched element, else `undefined`.\n * @example\n *\n * _.findLast([1, 2, 3, 4], function(n) {\n * return n % 2 == 1;\n * });\n * // => 3\n */\n var findLast = createFind(findLastIndex);\n\n /**\n * Creates a flattened array of values by running each element in `collection`\n * thru `iteratee` and flattening the mapped results. The iteratee is invoked\n * with three arguments: (value, index|key, collection).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * function duplicate(n) {\n * return [n, n];\n * }\n *\n * _.flatMap([1, 2], duplicate);\n * // => [1, 1, 2, 2]\n */\n function flatMap(collection, iteratee) {\n return baseFlatten(map(collection, iteratee), 1);\n }\n\n /**\n * This method is like `_.flatMap` except that it recursively flattens the\n * mapped results.\n *\n * @static\n * @memberOf _\n * @since 4.7.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * function duplicate(n) {\n * return [[[n, n]]];\n * }\n *\n * _.flatMapDeep([1, 2], duplicate);\n * // => [1, 1, 2, 2]\n */\n function flatMapDeep(collection, iteratee) {\n return baseFlatten(map(collection, iteratee), INFINITY);\n }\n\n /**\n * This method is like `_.flatMap` except that it recursively flattens the\n * mapped results up to `depth` times.\n *\n * @static\n * @memberOf _\n * @since 4.7.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {number} [depth=1] The maximum recursion depth.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * function duplicate(n) {\n * return [[[n, n]]];\n * }\n *\n * _.flatMapDepth([1, 2], duplicate, 2);\n * // => [[1, 1], [2, 2]]\n */\n function flatMapDepth(collection, iteratee, depth) {\n depth = depth === undefined ? 1 : toInteger(depth);\n return baseFlatten(map(collection, iteratee), depth);\n }\n\n /**\n * Iterates over elements of `collection` and invokes `iteratee` for each element.\n * The iteratee is invoked with three arguments: (value, index|key, collection).\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * **Note:** As with other \"Collections\" methods, objects with a \"length\"\n * property are iterated like arrays. To avoid this behavior use `_.forIn`\n * or `_.forOwn` for object iteration.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @alias each\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n * @see _.forEachRight\n * @example\n *\n * _.forEach([1, 2], function(value) {\n * console.log(value);\n * });\n * // => Logs `1` then `2`.\n *\n * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a' then 'b' (iteration order is not guaranteed).\n */\n function forEach(collection, iteratee) {\n var func = isArray(collection) ? arrayEach : baseEach;\n return func(collection, getIteratee(iteratee, 3));\n }\n\n /**\n * This method is like `_.forEach` except that it iterates over elements of\n * `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @alias eachRight\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n * @see _.forEach\n * @example\n *\n * _.forEachRight([1, 2], function(value) {\n * console.log(value);\n * });\n * // => Logs `2` then `1`.\n */\n function forEachRight(collection, iteratee) {\n var func = isArray(collection) ? arrayEachRight : baseEachRight;\n return func(collection, getIteratee(iteratee, 3));\n }\n\n /**\n * Creates an object composed of keys generated from the results of running\n * each element of `collection` thru `iteratee`. The order of grouped values\n * is determined by the order they occur in `collection`. The corresponding\n * value of each key is an array of elements responsible for generating the\n * key. The iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n * @returns {Object} Returns the composed aggregate object.\n * @example\n *\n * _.groupBy([6.1, 4.2, 6.3], Math.floor);\n * // => { '4': [4.2], '6': [6.1, 6.3] }\n *\n * // The `_.property` iteratee shorthand.\n * _.groupBy(['one', 'two', 'three'], 'length');\n * // => { '3': ['one', 'two'], '5': ['three'] }\n */\n var groupBy = createAggregator(function(result, value, key) {\n if (hasOwnProperty.call(result, key)) {\n result[key].push(value);\n } else {\n baseAssignValue(result, key, [value]);\n }\n });\n\n /**\n * Checks if `value` is in `collection`. If `collection` is a string, it's\n * checked for a substring of `value`, otherwise\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * is used for equality comparisons. If `fromIndex` is negative, it's used as\n * the offset from the end of `collection`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object|string} collection The collection to inspect.\n * @param {*} value The value to search for.\n * @param {number} [fromIndex=0] The index to search from.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.\n * @returns {boolean} Returns `true` if `value` is found, else `false`.\n * @example\n *\n * _.includes([1, 2, 3], 1);\n * // => true\n *\n * _.includes([1, 2, 3], 1, 2);\n * // => false\n *\n * _.includes({ 'a': 1, 'b': 2 }, 1);\n * // => true\n *\n * _.includes('abcd', 'bc');\n * // => true\n */\n function includes(collection, value, fromIndex, guard) {\n collection = isArrayLike(collection) ? collection : values(collection);\n fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0;\n\n var length = collection.length;\n if (fromIndex < 0) {\n fromIndex = nativeMax(length + fromIndex, 0);\n }\n return isString(collection)\n ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1)\n : (!!length && baseIndexOf(collection, value, fromIndex) > -1);\n }\n\n /**\n * Invokes the method at `path` of each element in `collection`, returning\n * an array of the results of each invoked method. Any additional arguments\n * are provided to each invoked method. If `path` is a function, it's invoked\n * for, and `this` bound to, each element in `collection`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Array|Function|string} path The path of the method to invoke or\n * the function invoked per iteration.\n * @param {...*} [args] The arguments to invoke each method with.\n * @returns {Array} Returns the array of results.\n * @example\n *\n * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort');\n * // => [[1, 5, 7], [1, 2, 3]]\n *\n * _.invokeMap([123, 456], String.prototype.split, '');\n * // => [['1', '2', '3'], ['4', '5', '6']]\n */\n var invokeMap = baseRest(function(collection, path, args) {\n var index = -1,\n isFunc = typeof path == 'function',\n result = isArrayLike(collection) ? Array(collection.length) : [];\n\n baseEach(collection, function(value) {\n result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args);\n });\n return result;\n });\n\n /**\n * Creates an object composed of keys generated from the results of running\n * each element of `collection` thru `iteratee`. The corresponding value of\n * each key is the last element responsible for generating the key. The\n * iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n * @returns {Object} Returns the composed aggregate object.\n * @example\n *\n * var array = [\n * { 'dir': 'left', 'code': 97 },\n * { 'dir': 'right', 'code': 100 }\n * ];\n *\n * _.keyBy(array, function(o) {\n * return String.fromCharCode(o.code);\n * });\n * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }\n *\n * _.keyBy(array, 'dir');\n * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }\n */\n var keyBy = createAggregator(function(result, value, key) {\n baseAssignValue(result, key, value);\n });\n\n /**\n * Creates an array of values by running each element in `collection` thru\n * `iteratee`. The iteratee is invoked with three arguments:\n * (value, index|key, collection).\n *\n * Many lodash methods are guarded to work as iteratees for methods like\n * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.\n *\n * The guarded methods are:\n * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,\n * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,\n * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,\n * `template`, `trim`, `trimEnd`, `trimStart`, and `words`\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n * @example\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * _.map([4, 8], square);\n * // => [16, 64]\n *\n * _.map({ 'a': 4, 'b': 8 }, square);\n * // => [16, 64] (iteration order is not guaranteed)\n *\n * var users = [\n * { 'user': 'barney' },\n * { 'user': 'fred' }\n * ];\n *\n * // The `_.property` iteratee shorthand.\n * _.map(users, 'user');\n * // => ['barney', 'fred']\n */\n function map(collection, iteratee) {\n var func = isArray(collection) ? arrayMap : baseMap;\n return func(collection, getIteratee(iteratee, 3));\n }\n\n /**\n * This method is like `_.sortBy` except that it allows specifying the sort\n * orders of the iteratees to sort by. If `orders` is unspecified, all values\n * are sorted in ascending order. Otherwise, specify an order of \"desc\" for\n * descending or \"asc\" for ascending sort order of corresponding values.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]]\n * The iteratees to sort by.\n * @param {string[]} [orders] The sort orders of `iteratees`.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.\n * @returns {Array} Returns the new sorted array.\n * @example\n *\n * var users = [\n * { 'user': 'fred', 'age': 48 },\n * { 'user': 'barney', 'age': 34 },\n * { 'user': 'fred', 'age': 40 },\n * { 'user': 'barney', 'age': 36 }\n * ];\n *\n * // Sort by `user` in ascending order and by `age` in descending order.\n * _.orderBy(users, ['user', 'age'], ['asc', 'desc']);\n * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]\n */\n function orderBy(collection, iteratees, orders, guard) {\n if (collection == null) {\n return [];\n }\n if (!isArray(iteratees)) {\n iteratees = iteratees == null ? [] : [iteratees];\n }\n orders = guard ? undefined : orders;\n if (!isArray(orders)) {\n orders = orders == null ? [] : [orders];\n }\n return baseOrderBy(collection, iteratees, orders);\n }\n\n /**\n * Creates an array of elements split into two groups, the first of which\n * contains elements `predicate` returns truthy for, the second of which\n * contains elements `predicate` returns falsey for. The predicate is\n * invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the array of grouped elements.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': false },\n * { 'user': 'fred', 'age': 40, 'active': true },\n * { 'user': 'pebbles', 'age': 1, 'active': false }\n * ];\n *\n * _.partition(users, function(o) { return o.active; });\n * // => objects for [['fred'], ['barney', 'pebbles']]\n *\n * // The `_.matches` iteratee shorthand.\n * _.partition(users, { 'age': 1, 'active': false });\n * // => objects for [['pebbles'], ['barney', 'fred']]\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.partition(users, ['active', false]);\n * // => objects for [['barney', 'pebbles'], ['fred']]\n *\n * // The `_.property` iteratee shorthand.\n * _.partition(users, 'active');\n * // => objects for [['fred'], ['barney', 'pebbles']]\n */\n var partition = createAggregator(function(result, value, key) {\n result[key ? 0 : 1].push(value);\n }, function() { return [[], []]; });\n\n /**\n * Reduces `collection` to a value which is the accumulated result of running\n * each element in `collection` thru `iteratee`, where each successive\n * invocation is supplied the return value of the previous. If `accumulator`\n * is not given, the first element of `collection` is used as the initial\n * value. The iteratee is invoked with four arguments:\n * (accumulator, value, index|key, collection).\n *\n * Many lodash methods are guarded to work as iteratees for methods like\n * `_.reduce`, `_.reduceRight`, and `_.transform`.\n *\n * The guarded methods are:\n * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,\n * and `sortBy`\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @returns {*} Returns the accumulated value.\n * @see _.reduceRight\n * @example\n *\n * _.reduce([1, 2], function(sum, n) {\n * return sum + n;\n * }, 0);\n * // => 3\n *\n * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {\n * (result[value] || (result[value] = [])).push(key);\n * return result;\n * }, {});\n * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)\n */\n function reduce(collection, iteratee, accumulator) {\n var func = isArray(collection) ? arrayReduce : baseReduce,\n initAccum = arguments.length < 3;\n\n return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach);\n }\n\n /**\n * This method is like `_.reduce` except that it iterates over elements of\n * `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @returns {*} Returns the accumulated value.\n * @see _.reduce\n * @example\n *\n * var array = [[0, 1], [2, 3], [4, 5]];\n *\n * _.reduceRight(array, function(flattened, other) {\n * return flattened.concat(other);\n * }, []);\n * // => [4, 5, 2, 3, 0, 1]\n */\n function reduceRight(collection, iteratee, accumulator) {\n var func = isArray(collection) ? arrayReduceRight : baseReduce,\n initAccum = arguments.length < 3;\n\n return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight);\n }\n\n /**\n * The opposite of `_.filter`; this method returns the elements of `collection`\n * that `predicate` does **not** return truthy for.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n * @see _.filter\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': false },\n * { 'user': 'fred', 'age': 40, 'active': true }\n * ];\n *\n * _.reject(users, function(o) { return !o.active; });\n * // => objects for ['fred']\n *\n * // The `_.matches` iteratee shorthand.\n * _.reject(users, { 'age': 40, 'active': true });\n * // => objects for ['barney']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.reject(users, ['active', false]);\n * // => objects for ['fred']\n *\n * // The `_.property` iteratee shorthand.\n * _.reject(users, 'active');\n * // => objects for ['barney']\n */\n function reject(collection, predicate) {\n var func = isArray(collection) ? arrayFilter : baseFilter;\n return func(collection, negate(getIteratee(predicate, 3)));\n }\n\n /**\n * Gets a random element from `collection`.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to sample.\n * @returns {*} Returns the random element.\n * @example\n *\n * _.sample([1, 2, 3, 4]);\n * // => 2\n */\n function sample(collection) {\n var func = isArray(collection) ? arraySample : baseSample;\n return func(collection);\n }\n\n /**\n * Gets `n` random elements at unique keys from `collection` up to the\n * size of `collection`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to sample.\n * @param {number} [n=1] The number of elements to sample.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the random elements.\n * @example\n *\n * _.sampleSize([1, 2, 3], 2);\n * // => [3, 1]\n *\n * _.sampleSize([1, 2, 3], 4);\n * // => [2, 3, 1]\n */\n function sampleSize(collection, n, guard) {\n if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) {\n n = 1;\n } else {\n n = toInteger(n);\n }\n var func = isArray(collection) ? arraySampleSize : baseSampleSize;\n return func(collection, n);\n }\n\n /**\n * Creates an array of shuffled values, using a version of the\n * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to shuffle.\n * @returns {Array} Returns the new shuffled array.\n * @example\n *\n * _.shuffle([1, 2, 3, 4]);\n * // => [4, 1, 3, 2]\n */\n function shuffle(collection) {\n var func = isArray(collection) ? arrayShuffle : baseShuffle;\n return func(collection);\n }\n\n /**\n * Gets the size of `collection` by returning its length for array-like\n * values or the number of own enumerable string keyed properties for objects.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object|string} collection The collection to inspect.\n * @returns {number} Returns the collection size.\n * @example\n *\n * _.size([1, 2, 3]);\n * // => 3\n *\n * _.size({ 'a': 1, 'b': 2 });\n * // => 2\n *\n * _.size('pebbles');\n * // => 7\n */\n function size(collection) {\n if (collection == null) {\n return 0;\n }\n if (isArrayLike(collection)) {\n return isString(collection) ? stringSize(collection) : collection.length;\n }\n var tag = getTag(collection);\n if (tag == mapTag || tag == setTag) {\n return collection.size;\n }\n return baseKeys(collection).length;\n }\n\n /**\n * Checks if `predicate` returns truthy for **any** element of `collection`.\n * Iteration is stopped once `predicate` returns truthy. The predicate is\n * invoked with three arguments: (value, index|key, collection).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n * @example\n *\n * _.some([null, 0, 'yes', false], Boolean);\n * // => true\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false }\n * ];\n *\n * // The `_.matches` iteratee shorthand.\n * _.some(users, { 'user': 'barney', 'active': false });\n * // => false\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.some(users, ['active', false]);\n * // => true\n *\n * // The `_.property` iteratee shorthand.\n * _.some(users, 'active');\n * // => true\n */\n function some(collection, predicate, guard) {\n var func = isArray(collection) ? arraySome : baseSome;\n if (guard && isIterateeCall(collection, predicate, guard)) {\n predicate = undefined;\n }\n return func(collection, getIteratee(predicate, 3));\n }\n\n /**\n * Creates an array of elements, sorted in ascending order by the results of\n * running each element in a collection thru each iteratee. This method\n * performs a stable sort, that is, it preserves the original sort order of\n * equal elements. The iteratees are invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {...(Function|Function[])} [iteratees=[_.identity]]\n * The iteratees to sort by.\n * @returns {Array} Returns the new sorted array.\n * @example\n *\n * var users = [\n * { 'user': 'fred', 'age': 48 },\n * { 'user': 'barney', 'age': 36 },\n * { 'user': 'fred', 'age': 40 },\n * { 'user': 'barney', 'age': 34 }\n * ];\n *\n * _.sortBy(users, [function(o) { return o.user; }]);\n * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]\n *\n * _.sortBy(users, ['user', 'age']);\n * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]]\n */\n var sortBy = baseRest(function(collection, iteratees) {\n if (collection == null) {\n return [];\n }\n var length = iteratees.length;\n if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) {\n iteratees = [];\n } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {\n iteratees = [iteratees[0]];\n }\n return baseOrderBy(collection, baseFlatten(iteratees, 1), []);\n });\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Gets the timestamp of the number of milliseconds that have elapsed since\n * the Unix epoch (1 January 1970 00:00:00 UTC).\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Date\n * @returns {number} Returns the timestamp.\n * @example\n *\n * _.defer(function(stamp) {\n * console.log(_.now() - stamp);\n * }, _.now());\n * // => Logs the number of milliseconds it took for the deferred invocation.\n */\n var now = ctxNow || function() {\n return root.Date.now();\n };\n\n /*------------------------------------------------------------------------*/\n\n /**\n * The opposite of `_.before`; this method creates a function that invokes\n * `func` once it's called `n` or more times.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {number} n The number of calls before `func` is invoked.\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new restricted function.\n * @example\n *\n * var saves = ['profile', 'settings'];\n *\n * var done = _.after(saves.length, function() {\n * console.log('done saving!');\n * });\n *\n * _.forEach(saves, function(type) {\n * asyncSave({ 'type': type, 'complete': done });\n * });\n * // => Logs 'done saving!' after the two async saves have completed.\n */\n function after(n, func) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n n = toInteger(n);\n return function() {\n if (--n < 1) {\n return func.apply(this, arguments);\n }\n };\n }\n\n /**\n * Creates a function that invokes `func`, with up to `n` arguments,\n * ignoring any additional arguments.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} func The function to cap arguments for.\n * @param {number} [n=func.length] The arity cap.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the new capped function.\n * @example\n *\n * _.map(['6', '8', '10'], _.ary(parseInt, 1));\n * // => [6, 8, 10]\n */\n function ary(func, n, guard) {\n n = guard ? undefined : n;\n n = (func && n == null) ? func.length : n;\n return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n);\n }\n\n /**\n * Creates a function that invokes `func`, with the `this` binding and arguments\n * of the created function, while it's called less than `n` times. Subsequent\n * calls to the created function return the result of the last `func` invocation.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {number} n The number of calls at which `func` is no longer invoked.\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new restricted function.\n * @example\n *\n * jQuery(element).on('click', _.before(5, addContactToList));\n * // => Allows adding up to 4 contacts to the list.\n */\n function before(n, func) {\n var result;\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n n = toInteger(n);\n return function() {\n if (--n > 0) {\n result = func.apply(this, arguments);\n }\n if (n <= 1) {\n func = undefined;\n }\n return result;\n };\n }\n\n /**\n * Creates a function that invokes `func` with the `this` binding of `thisArg`\n * and `partials` prepended to the arguments it receives.\n *\n * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,\n * may be used as a placeholder for partially applied arguments.\n *\n * **Note:** Unlike native `Function#bind`, this method doesn't set the \"length\"\n * property of bound functions.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to bind.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new bound function.\n * @example\n *\n * function greet(greeting, punctuation) {\n * return greeting + ' ' + this.user + punctuation;\n * }\n *\n * var object = { 'user': 'fred' };\n *\n * var bound = _.bind(greet, object, 'hi');\n * bound('!');\n * // => 'hi fred!'\n *\n * // Bound with placeholders.\n * var bound = _.bind(greet, object, _, '!');\n * bound('hi');\n * // => 'hi fred!'\n */\n var bind = baseRest(function(func, thisArg, partials) {\n var bitmask = WRAP_BIND_FLAG;\n if (partials.length) {\n var holders = replaceHolders(partials, getHolder(bind));\n bitmask |= WRAP_PARTIAL_FLAG;\n }\n return createWrap(func, bitmask, thisArg, partials, holders);\n });\n\n /**\n * Creates a function that invokes the method at `object[key]` with `partials`\n * prepended to the arguments it receives.\n *\n * This method differs from `_.bind` by allowing bound functions to reference\n * methods that may be redefined or don't yet exist. See\n * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)\n * for more details.\n *\n * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for partially applied arguments.\n *\n * @static\n * @memberOf _\n * @since 0.10.0\n * @category Function\n * @param {Object} object The object to invoke the method on.\n * @param {string} key The key of the method.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new bound function.\n * @example\n *\n * var object = {\n * 'user': 'fred',\n * 'greet': function(greeting, punctuation) {\n * return greeting + ' ' + this.user + punctuation;\n * }\n * };\n *\n * var bound = _.bindKey(object, 'greet', 'hi');\n * bound('!');\n * // => 'hi fred!'\n *\n * object.greet = function(greeting, punctuation) {\n * return greeting + 'ya ' + this.user + punctuation;\n * };\n *\n * bound('!');\n * // => 'hiya fred!'\n *\n * // Bound with placeholders.\n * var bound = _.bindKey(object, 'greet', _, '!');\n * bound('hi');\n * // => 'hiya fred!'\n */\n var bindKey = baseRest(function(object, key, partials) {\n var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG;\n if (partials.length) {\n var holders = replaceHolders(partials, getHolder(bindKey));\n bitmask |= WRAP_PARTIAL_FLAG;\n }\n return createWrap(key, bitmask, object, partials, holders);\n });\n\n /**\n * Creates a function that accepts arguments of `func` and either invokes\n * `func` returning its result, if at least `arity` number of arguments have\n * been provided, or returns a function that accepts the remaining `func`\n * arguments, and so on. The arity of `func` may be specified if `func.length`\n * is not sufficient.\n *\n * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,\n * may be used as a placeholder for provided arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of curried functions.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Function\n * @param {Function} func The function to curry.\n * @param {number} [arity=func.length] The arity of `func`.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the new curried function.\n * @example\n *\n * var abc = function(a, b, c) {\n * return [a, b, c];\n * };\n *\n * var curried = _.curry(abc);\n *\n * curried(1)(2)(3);\n * // => [1, 2, 3]\n *\n * curried(1, 2)(3);\n * // => [1, 2, 3]\n *\n * curried(1, 2, 3);\n * // => [1, 2, 3]\n *\n * // Curried with placeholders.\n * curried(1)(_, 3)(2);\n * // => [1, 2, 3]\n */\n function curry(func, arity, guard) {\n arity = guard ? undefined : arity;\n var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity);\n result.placeholder = curry.placeholder;\n return result;\n }\n\n /**\n * This method is like `_.curry` except that arguments are applied to `func`\n * in the manner of `_.partialRight` instead of `_.partial`.\n *\n * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for provided arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of curried functions.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} func The function to curry.\n * @param {number} [arity=func.length] The arity of `func`.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the new curried function.\n * @example\n *\n * var abc = function(a, b, c) {\n * return [a, b, c];\n * };\n *\n * var curried = _.curryRight(abc);\n *\n * curried(3)(2)(1);\n * // => [1, 2, 3]\n *\n * curried(2, 3)(1);\n * // => [1, 2, 3]\n *\n * curried(1, 2, 3);\n * // => [1, 2, 3]\n *\n * // Curried with placeholders.\n * curried(3)(1, _)(2);\n * // => [1, 2, 3]\n */\n function curryRight(func, arity, guard) {\n arity = guard ? undefined : arity;\n var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity);\n result.placeholder = curryRight.placeholder;\n return result;\n }\n\n /**\n * Creates a debounced function that delays invoking `func` until after `wait`\n * milliseconds have elapsed since the last time the debounced function was\n * invoked. The debounced function comes with a `cancel` method to cancel\n * delayed `func` invocations and a `flush` method to immediately invoke them.\n * Provide `options` to indicate whether `func` should be invoked on the\n * leading and/or trailing edge of the `wait` timeout. The `func` is invoked\n * with the last arguments provided to the debounced function. Subsequent\n * calls to the debounced function return the result of the last `func`\n * invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the debounced function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.debounce` and `_.throttle`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to debounce.\n * @param {number} [wait=0] The number of milliseconds to delay.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=false]\n * Specify invoking on the leading edge of the timeout.\n * @param {number} [options.maxWait]\n * The maximum time `func` is allowed to be delayed before it's invoked.\n * @param {boolean} [options.trailing=true]\n * Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new debounced function.\n * @example\n *\n * // Avoid costly calculations while the window size is in flux.\n * jQuery(window).on('resize', _.debounce(calculateLayout, 150));\n *\n * // Invoke `sendMail` when clicked, debouncing subsequent calls.\n * jQuery(element).on('click', _.debounce(sendMail, 300, {\n * 'leading': true,\n * 'trailing': false\n * }));\n *\n * // Ensure `batchLog` is invoked once after 1 second of debounced calls.\n * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });\n * var source = new EventSource('/stream');\n * jQuery(source).on('message', debounced);\n *\n * // Cancel the trailing debounced invocation.\n * jQuery(window).on('popstate', debounced.cancel);\n */\n function debounce(func, wait, options) {\n var lastArgs,\n lastThis,\n maxWait,\n result,\n timerId,\n lastCallTime,\n lastInvokeTime = 0,\n leading = false,\n maxing = false,\n trailing = true;\n\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n wait = toNumber(wait) || 0;\n if (isObject(options)) {\n leading = !!options.leading;\n maxing = 'maxWait' in options;\n maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;\n trailing = 'trailing' in options ? !!options.trailing : trailing;\n }\n\n function invokeFunc(time) {\n var args = lastArgs,\n thisArg = lastThis;\n\n lastArgs = lastThis = undefined;\n lastInvokeTime = time;\n result = func.apply(thisArg, args);\n return result;\n }\n\n function leadingEdge(time) {\n // Reset any `maxWait` timer.\n lastInvokeTime = time;\n // Start the timer for the trailing edge.\n timerId = setTimeout(timerExpired, wait);\n // Invoke the leading edge.\n return leading ? invokeFunc(time) : result;\n }\n\n function remainingWait(time) {\n var timeSinceLastCall = time - lastCallTime,\n timeSinceLastInvoke = time - lastInvokeTime,\n timeWaiting = wait - timeSinceLastCall;\n\n return maxing\n ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke)\n : timeWaiting;\n }\n\n function shouldInvoke(time) {\n var timeSinceLastCall = time - lastCallTime,\n timeSinceLastInvoke = time - lastInvokeTime;\n\n // Either this is the first call, activity has stopped and we're at the\n // trailing edge, the system time has gone backwards and we're treating\n // it as the trailing edge, or we've hit the `maxWait` limit.\n return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||\n (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));\n }\n\n function timerExpired() {\n var time = now();\n if (shouldInvoke(time)) {\n return trailingEdge(time);\n }\n // Restart the timer.\n timerId = setTimeout(timerExpired, remainingWait(time));\n }\n\n function trailingEdge(time) {\n timerId = undefined;\n\n // Only invoke if we have `lastArgs` which means `func` has been\n // debounced at least once.\n if (trailing && lastArgs) {\n return invokeFunc(time);\n }\n lastArgs = lastThis = undefined;\n return result;\n }\n\n function cancel() {\n if (timerId !== undefined) {\n clearTimeout(timerId);\n }\n lastInvokeTime = 0;\n lastArgs = lastCallTime = lastThis = timerId = undefined;\n }\n\n function flush() {\n return timerId === undefined ? result : trailingEdge(now());\n }\n\n function debounced() {\n var time = now(),\n isInvoking = shouldInvoke(time);\n\n lastArgs = arguments;\n lastThis = this;\n lastCallTime = time;\n\n if (isInvoking) {\n if (timerId === undefined) {\n return leadingEdge(lastCallTime);\n }\n if (maxing) {\n // Handle invocations in a tight loop.\n clearTimeout(timerId);\n timerId = setTimeout(timerExpired, wait);\n return invokeFunc(lastCallTime);\n }\n }\n if (timerId === undefined) {\n timerId = setTimeout(timerExpired, wait);\n }\n return result;\n }\n debounced.cancel = cancel;\n debounced.flush = flush;\n return debounced;\n }\n\n /**\n * Defers invoking the `func` until the current call stack has cleared. Any\n * additional arguments are provided to `func` when it's invoked.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to defer.\n * @param {...*} [args] The arguments to invoke `func` with.\n * @returns {number} Returns the timer id.\n * @example\n *\n * _.defer(function(text) {\n * console.log(text);\n * }, 'deferred');\n * // => Logs 'deferred' after one millisecond.\n */\n var defer = baseRest(function(func, args) {\n return baseDelay(func, 1, args);\n });\n\n /**\n * Invokes `func` after `wait` milliseconds. Any additional arguments are\n * provided to `func` when it's invoked.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to delay.\n * @param {number} wait The number of milliseconds to delay invocation.\n * @param {...*} [args] The arguments to invoke `func` with.\n * @returns {number} Returns the timer id.\n * @example\n *\n * _.delay(function(text) {\n * console.log(text);\n * }, 1000, 'later');\n * // => Logs 'later' after one second.\n */\n var delay = baseRest(function(func, wait, args) {\n return baseDelay(func, toNumber(wait) || 0, args);\n });\n\n /**\n * Creates a function that invokes `func` with arguments reversed.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Function\n * @param {Function} func The function to flip arguments for.\n * @returns {Function} Returns the new flipped function.\n * @example\n *\n * var flipped = _.flip(function() {\n * return _.toArray(arguments);\n * });\n *\n * flipped('a', 'b', 'c', 'd');\n * // => ['d', 'c', 'b', 'a']\n */\n function flip(func) {\n return createWrap(func, WRAP_FLIP_FLAG);\n }\n\n /**\n * Creates a function that memoizes the result of `func`. If `resolver` is\n * provided, it determines the cache key for storing the result based on the\n * arguments provided to the memoized function. By default, the first argument\n * provided to the memoized function is used as the map cache key. The `func`\n * is invoked with the `this` binding of the memoized function.\n *\n * **Note:** The cache is exposed as the `cache` property on the memoized\n * function. Its creation may be customized by replacing the `_.memoize.Cache`\n * constructor with one whose instances implement the\n * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)\n * method interface of `clear`, `delete`, `get`, `has`, and `set`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to have its output memoized.\n * @param {Function} [resolver] The function to resolve the cache key.\n * @returns {Function} Returns the new memoized function.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n * var other = { 'c': 3, 'd': 4 };\n *\n * var values = _.memoize(_.values);\n * values(object);\n * // => [1, 2]\n *\n * values(other);\n * // => [3, 4]\n *\n * object.a = 2;\n * values(object);\n * // => [1, 2]\n *\n * // Modify the result cache.\n * values.cache.set(object, ['a', 'b']);\n * values(object);\n * // => ['a', 'b']\n *\n * // Replace `_.memoize.Cache`.\n * _.memoize.Cache = WeakMap;\n */\n function memoize(func, resolver) {\n if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n var memoized = function() {\n var args = arguments,\n key = resolver ? resolver.apply(this, args) : args[0],\n cache = memoized.cache;\n\n if (cache.has(key)) {\n return cache.get(key);\n }\n var result = func.apply(this, args);\n memoized.cache = cache.set(key, result) || cache;\n return result;\n };\n memoized.cache = new (memoize.Cache || MapCache);\n return memoized;\n }\n\n // Expose `MapCache`.\n memoize.Cache = MapCache;\n\n /**\n * Creates a function that negates the result of the predicate `func`. The\n * `func` predicate is invoked with the `this` binding and arguments of the\n * created function.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} predicate The predicate to negate.\n * @returns {Function} Returns the new negated function.\n * @example\n *\n * function isEven(n) {\n * return n % 2 == 0;\n * }\n *\n * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));\n * // => [1, 3, 5]\n */\n function negate(predicate) {\n if (typeof predicate != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n return function() {\n var args = arguments;\n switch (args.length) {\n case 0: return !predicate.call(this);\n case 1: return !predicate.call(this, args[0]);\n case 2: return !predicate.call(this, args[0], args[1]);\n case 3: return !predicate.call(this, args[0], args[1], args[2]);\n }\n return !predicate.apply(this, args);\n };\n }\n\n /**\n * Creates a function that is restricted to invoking `func` once. Repeat calls\n * to the function return the value of the first invocation. The `func` is\n * invoked with the `this` binding and arguments of the created function.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new restricted function.\n * @example\n *\n * var initialize = _.once(createApplication);\n * initialize();\n * initialize();\n * // => `createApplication` is invoked once\n */\n function once(func) {\n return before(2, func);\n }\n\n /**\n * Creates a function that invokes `func` with its arguments transformed.\n *\n * @static\n * @since 4.0.0\n * @memberOf _\n * @category Function\n * @param {Function} func The function to wrap.\n * @param {...(Function|Function[])} [transforms=[_.identity]]\n * The argument transforms.\n * @returns {Function} Returns the new function.\n * @example\n *\n * function doubled(n) {\n * return n * 2;\n * }\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * var func = _.overArgs(function(x, y) {\n * return [x, y];\n * }, [square, doubled]);\n *\n * func(9, 3);\n * // => [81, 6]\n *\n * func(10, 5);\n * // => [100, 10]\n */\n var overArgs = castRest(function(func, transforms) {\n transforms = (transforms.length == 1 && isArray(transforms[0]))\n ? arrayMap(transforms[0], baseUnary(getIteratee()))\n : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee()));\n\n var funcsLength = transforms.length;\n return baseRest(function(args) {\n var index = -1,\n length = nativeMin(args.length, funcsLength);\n\n while (++index < length) {\n args[index] = transforms[index].call(this, args[index]);\n }\n return apply(func, this, args);\n });\n });\n\n /**\n * Creates a function that invokes `func` with `partials` prepended to the\n * arguments it receives. This method is like `_.bind` except it does **not**\n * alter the `this` binding.\n *\n * The `_.partial.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for partially applied arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of partially\n * applied functions.\n *\n * @static\n * @memberOf _\n * @since 0.2.0\n * @category Function\n * @param {Function} func The function to partially apply arguments to.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new partially applied function.\n * @example\n *\n * function greet(greeting, name) {\n * return greeting + ' ' + name;\n * }\n *\n * var sayHelloTo = _.partial(greet, 'hello');\n * sayHelloTo('fred');\n * // => 'hello fred'\n *\n * // Partially applied with placeholders.\n * var greetFred = _.partial(greet, _, 'fred');\n * greetFred('hi');\n * // => 'hi fred'\n */\n var partial = baseRest(function(func, partials) {\n var holders = replaceHolders(partials, getHolder(partial));\n return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders);\n });\n\n /**\n * This method is like `_.partial` except that partially applied arguments\n * are appended to the arguments it receives.\n *\n * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for partially applied arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of partially\n * applied functions.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Function\n * @param {Function} func The function to partially apply arguments to.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new partially applied function.\n * @example\n *\n * function greet(greeting, name) {\n * return greeting + ' ' + name;\n * }\n *\n * var greetFred = _.partialRight(greet, 'fred');\n * greetFred('hi');\n * // => 'hi fred'\n *\n * // Partially applied with placeholders.\n * var sayHelloTo = _.partialRight(greet, 'hello', _);\n * sayHelloTo('fred');\n * // => 'hello fred'\n */\n var partialRight = baseRest(function(func, partials) {\n var holders = replaceHolders(partials, getHolder(partialRight));\n return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders);\n });\n\n /**\n * Creates a function that invokes `func` with arguments arranged according\n * to the specified `indexes` where the argument value at the first index is\n * provided as the first argument, the argument value at the second index is\n * provided as the second argument, and so on.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} func The function to rearrange arguments for.\n * @param {...(number|number[])} indexes The arranged argument indexes.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var rearged = _.rearg(function(a, b, c) {\n * return [a, b, c];\n * }, [2, 0, 1]);\n *\n * rearged('b', 'c', 'a')\n * // => ['a', 'b', 'c']\n */\n var rearg = flatRest(function(func, indexes) {\n return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes);\n });\n\n /**\n * Creates a function that invokes `func` with the `this` binding of the\n * created function and arguments from `start` and beyond provided as\n * an array.\n *\n * **Note:** This method is based on the\n * [rest parameter](https://mdn.io/rest_parameters).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Function\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var say = _.rest(function(what, names) {\n * return what + ' ' + _.initial(names).join(', ') +\n * (_.size(names) > 1 ? ', & ' : '') + _.last(names);\n * });\n *\n * say('hello', 'fred', 'barney', 'pebbles');\n * // => 'hello fred, barney, & pebbles'\n */\n function rest(func, start) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n start = start === undefined ? start : toInteger(start);\n return baseRest(func, start);\n }\n\n /**\n * Creates a function that invokes `func` with the `this` binding of the\n * create function and an array of arguments much like\n * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).\n *\n * **Note:** This method is based on the\n * [spread operator](https://mdn.io/spread_operator).\n *\n * @static\n * @memberOf _\n * @since 3.2.0\n * @category Function\n * @param {Function} func The function to spread arguments over.\n * @param {number} [start=0] The start position of the spread.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var say = _.spread(function(who, what) {\n * return who + ' says ' + what;\n * });\n *\n * say(['fred', 'hello']);\n * // => 'fred says hello'\n *\n * var numbers = Promise.all([\n * Promise.resolve(40),\n * Promise.resolve(36)\n * ]);\n *\n * numbers.then(_.spread(function(x, y) {\n * return x + y;\n * }));\n * // => a Promise of 76\n */\n function spread(func, start) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n start = start == null ? 0 : nativeMax(toInteger(start), 0);\n return baseRest(function(args) {\n var array = args[start],\n otherArgs = castSlice(args, 0, start);\n\n if (array) {\n arrayPush(otherArgs, array);\n }\n return apply(func, this, otherArgs);\n });\n }\n\n /**\n * Creates a throttled function that only invokes `func` at most once per\n * every `wait` milliseconds. The throttled function comes with a `cancel`\n * method to cancel delayed `func` invocations and a `flush` method to\n * immediately invoke them. Provide `options` to indicate whether `func`\n * should be invoked on the leading and/or trailing edge of the `wait`\n * timeout. The `func` is invoked with the last arguments provided to the\n * throttled function. Subsequent calls to the throttled function return the\n * result of the last `func` invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the throttled function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.throttle` and `_.debounce`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to throttle.\n * @param {number} [wait=0] The number of milliseconds to throttle invocations to.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=true]\n * Specify invoking on the leading edge of the timeout.\n * @param {boolean} [options.trailing=true]\n * Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new throttled function.\n * @example\n *\n * // Avoid excessively updating the position while scrolling.\n * jQuery(window).on('scroll', _.throttle(updatePosition, 100));\n *\n * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.\n * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });\n * jQuery(element).on('click', throttled);\n *\n * // Cancel the trailing throttled invocation.\n * jQuery(window).on('popstate', throttled.cancel);\n */\n function throttle(func, wait, options) {\n var leading = true,\n trailing = true;\n\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n if (isObject(options)) {\n leading = 'leading' in options ? !!options.leading : leading;\n trailing = 'trailing' in options ? !!options.trailing : trailing;\n }\n return debounce(func, wait, {\n 'leading': leading,\n 'maxWait': wait,\n 'trailing': trailing\n });\n }\n\n /**\n * Creates a function that accepts up to one argument, ignoring any\n * additional arguments.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Function\n * @param {Function} func The function to cap arguments for.\n * @returns {Function} Returns the new capped function.\n * @example\n *\n * _.map(['6', '8', '10'], _.unary(parseInt));\n * // => [6, 8, 10]\n */\n function unary(func) {\n return ary(func, 1);\n }\n\n /**\n * Creates a function that provides `value` to `wrapper` as its first\n * argument. Any additional arguments provided to the function are appended\n * to those provided to the `wrapper`. The wrapper is invoked with the `this`\n * binding of the created function.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {*} value The value to wrap.\n * @param {Function} [wrapper=identity] The wrapper function.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var p = _.wrap(_.escape, function(func, text) {\n * return '' + func(text) + '
';\n * });\n *\n * p('fred, barney, & pebbles');\n * // => 'fred, barney, & pebbles
'\n */\n function wrap(value, wrapper) {\n return partial(castFunction(wrapper), value);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Casts `value` as an array if it's not one.\n *\n * @static\n * @memberOf _\n * @since 4.4.0\n * @category Lang\n * @param {*} value The value to inspect.\n * @returns {Array} Returns the cast array.\n * @example\n *\n * _.castArray(1);\n * // => [1]\n *\n * _.castArray({ 'a': 1 });\n * // => [{ 'a': 1 }]\n *\n * _.castArray('abc');\n * // => ['abc']\n *\n * _.castArray(null);\n * // => [null]\n *\n * _.castArray(undefined);\n * // => [undefined]\n *\n * _.castArray();\n * // => []\n *\n * var array = [1, 2, 3];\n * console.log(_.castArray(array) === array);\n * // => true\n */\n function castArray() {\n if (!arguments.length) {\n return [];\n }\n var value = arguments[0];\n return isArray(value) ? value : [value];\n }\n\n /**\n * Creates a shallow clone of `value`.\n *\n * **Note:** This method is loosely based on the\n * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)\n * and supports cloning arrays, array buffers, booleans, date objects, maps,\n * numbers, `Object` objects, regexes, sets, strings, symbols, and typed\n * arrays. The own enumerable properties of `arguments` objects are cloned\n * as plain objects. An empty object is returned for uncloneable values such\n * as error objects, functions, DOM nodes, and WeakMaps.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to clone.\n * @returns {*} Returns the cloned value.\n * @see _.cloneDeep\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var shallow = _.clone(objects);\n * console.log(shallow[0] === objects[0]);\n * // => true\n */\n function clone(value) {\n return baseClone(value, CLONE_SYMBOLS_FLAG);\n }\n\n /**\n * This method is like `_.clone` except that it accepts `customizer` which\n * is invoked to produce the cloned value. If `customizer` returns `undefined`,\n * cloning is handled by the method instead. The `customizer` is invoked with\n * up to four arguments; (value [, index|key, object, stack]).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to clone.\n * @param {Function} [customizer] The function to customize cloning.\n * @returns {*} Returns the cloned value.\n * @see _.cloneDeepWith\n * @example\n *\n * function customizer(value) {\n * if (_.isElement(value)) {\n * return value.cloneNode(false);\n * }\n * }\n *\n * var el = _.cloneWith(document.body, customizer);\n *\n * console.log(el === document.body);\n * // => false\n * console.log(el.nodeName);\n * // => 'BODY'\n * console.log(el.childNodes.length);\n * // => 0\n */\n function cloneWith(value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseClone(value, CLONE_SYMBOLS_FLAG, customizer);\n }\n\n /**\n * This method is like `_.clone` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @returns {*} Returns the deep cloned value.\n * @see _.clone\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var deep = _.cloneDeep(objects);\n * console.log(deep[0] === objects[0]);\n * // => false\n */\n function cloneDeep(value) {\n return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);\n }\n\n /**\n * This method is like `_.cloneWith` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @param {Function} [customizer] The function to customize cloning.\n * @returns {*} Returns the deep cloned value.\n * @see _.cloneWith\n * @example\n *\n * function customizer(value) {\n * if (_.isElement(value)) {\n * return value.cloneNode(true);\n * }\n * }\n *\n * var el = _.cloneDeepWith(document.body, customizer);\n *\n * console.log(el === document.body);\n * // => false\n * console.log(el.nodeName);\n * // => 'BODY'\n * console.log(el.childNodes.length);\n * // => 20\n */\n function cloneDeepWith(value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);\n }\n\n /**\n * Checks if `object` conforms to `source` by invoking the predicate\n * properties of `source` with the corresponding property values of `object`.\n *\n * **Note:** This method is equivalent to `_.conforms` when `source` is\n * partially applied.\n *\n * @static\n * @memberOf _\n * @since 4.14.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property predicates to conform to.\n * @returns {boolean} Returns `true` if `object` conforms, else `false`.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n *\n * _.conformsTo(object, { 'b': function(n) { return n > 1; } });\n * // => true\n *\n * _.conformsTo(object, { 'b': function(n) { return n > 2; } });\n * // => false\n */\n function conformsTo(object, source) {\n return source == null || baseConformsTo(object, source, keys(source));\n }\n\n /**\n * Performs a\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * comparison between two values to determine if they are equivalent.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.eq(object, object);\n * // => true\n *\n * _.eq(object, other);\n * // => false\n *\n * _.eq('a', 'a');\n * // => true\n *\n * _.eq('a', Object('a'));\n * // => false\n *\n * _.eq(NaN, NaN);\n * // => true\n */\n function eq(value, other) {\n return value === other || (value !== value && other !== other);\n }\n\n /**\n * Checks if `value` is greater than `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than `other`,\n * else `false`.\n * @see _.lt\n * @example\n *\n * _.gt(3, 1);\n * // => true\n *\n * _.gt(3, 3);\n * // => false\n *\n * _.gt(1, 3);\n * // => false\n */\n var gt = createRelationalOperation(baseGt);\n\n /**\n * Checks if `value` is greater than or equal to `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than or equal to\n * `other`, else `false`.\n * @see _.lte\n * @example\n *\n * _.gte(3, 1);\n * // => true\n *\n * _.gte(3, 3);\n * // => true\n *\n * _.gte(1, 3);\n * // => false\n */\n var gte = createRelationalOperation(function(value, other) {\n return value >= other;\n });\n\n /**\n * Checks if `value` is likely an `arguments` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n * else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\n var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {\n return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&\n !propertyIsEnumerable.call(value, 'callee');\n };\n\n /**\n * Checks if `value` is classified as an `Array` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array, else `false`.\n * @example\n *\n * _.isArray([1, 2, 3]);\n * // => true\n *\n * _.isArray(document.body.children);\n * // => false\n *\n * _.isArray('abc');\n * // => false\n *\n * _.isArray(_.noop);\n * // => false\n */\n var isArray = Array.isArray;\n\n /**\n * Checks if `value` is classified as an `ArrayBuffer` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.\n * @example\n *\n * _.isArrayBuffer(new ArrayBuffer(2));\n * // => true\n *\n * _.isArrayBuffer(new Array(2));\n * // => false\n */\n var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer;\n\n /**\n * Checks if `value` is array-like. A value is considered array-like if it's\n * not a function and has a `value.length` that's an integer greater than or\n * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n * @example\n *\n * _.isArrayLike([1, 2, 3]);\n * // => true\n *\n * _.isArrayLike(document.body.children);\n * // => true\n *\n * _.isArrayLike('abc');\n * // => true\n *\n * _.isArrayLike(_.noop);\n * // => false\n */\n function isArrayLike(value) {\n return value != null && isLength(value.length) && !isFunction(value);\n }\n\n /**\n * This method is like `_.isArrayLike` except that it also checks if `value`\n * is an object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array-like object,\n * else `false`.\n * @example\n *\n * _.isArrayLikeObject([1, 2, 3]);\n * // => true\n *\n * _.isArrayLikeObject(document.body.children);\n * // => true\n *\n * _.isArrayLikeObject('abc');\n * // => false\n *\n * _.isArrayLikeObject(_.noop);\n * // => false\n */\n function isArrayLikeObject(value) {\n return isObjectLike(value) && isArrayLike(value);\n }\n\n /**\n * Checks if `value` is classified as a boolean primitive or object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a boolean, else `false`.\n * @example\n *\n * _.isBoolean(false);\n * // => true\n *\n * _.isBoolean(null);\n * // => false\n */\n function isBoolean(value) {\n return value === true || value === false ||\n (isObjectLike(value) && baseGetTag(value) == boolTag);\n }\n\n /**\n * Checks if `value` is a buffer.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.\n * @example\n *\n * _.isBuffer(new Buffer(2));\n * // => true\n *\n * _.isBuffer(new Uint8Array(2));\n * // => false\n */\n var isBuffer = nativeIsBuffer || stubFalse;\n\n /**\n * Checks if `value` is classified as a `Date` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a date object, else `false`.\n * @example\n *\n * _.isDate(new Date);\n * // => true\n *\n * _.isDate('Mon April 23 2012');\n * // => false\n */\n var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate;\n\n /**\n * Checks if `value` is likely a DOM element.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.\n * @example\n *\n * _.isElement(document.body);\n * // => true\n *\n * _.isElement('');\n * // => false\n */\n function isElement(value) {\n return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);\n }\n\n /**\n * Checks if `value` is an empty object, collection, map, or set.\n *\n * Objects are considered empty if they have no own enumerable string keyed\n * properties.\n *\n * Array-like values such as `arguments` objects, arrays, buffers, strings, or\n * jQuery-like collections are considered empty if they have a `length` of `0`.\n * Similarly, maps and sets are considered empty if they have a `size` of `0`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is empty, else `false`.\n * @example\n *\n * _.isEmpty(null);\n * // => true\n *\n * _.isEmpty(true);\n * // => true\n *\n * _.isEmpty(1);\n * // => true\n *\n * _.isEmpty([1, 2, 3]);\n * // => false\n *\n * _.isEmpty({ 'a': 1 });\n * // => false\n */\n function isEmpty(value) {\n if (value == null) {\n return true;\n }\n if (isArrayLike(value) &&\n (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||\n isBuffer(value) || isTypedArray(value) || isArguments(value))) {\n return !value.length;\n }\n var tag = getTag(value);\n if (tag == mapTag || tag == setTag) {\n return !value.size;\n }\n if (isPrototype(value)) {\n return !baseKeys(value).length;\n }\n for (var key in value) {\n if (hasOwnProperty.call(value, key)) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * Performs a deep comparison between two values to determine if they are\n * equivalent.\n *\n * **Note:** This method supports comparing arrays, array buffers, booleans,\n * date objects, error objects, maps, numbers, `Object` objects, regexes,\n * sets, strings, symbols, and typed arrays. `Object` objects are compared\n * by their own, not inherited, enumerable properties. Functions and DOM\n * nodes are compared by strict equality, i.e. `===`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.isEqual(object, other);\n * // => true\n *\n * object === other;\n * // => false\n */\n function isEqual(value, other) {\n return baseIsEqual(value, other);\n }\n\n /**\n * This method is like `_.isEqual` except that it accepts `customizer` which\n * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n * are handled by the method instead. The `customizer` is invoked with up to\n * six arguments: (objValue, othValue [, index|key, object, other, stack]).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * function isGreeting(value) {\n * return /^h(?:i|ello)$/.test(value);\n * }\n *\n * function customizer(objValue, othValue) {\n * if (isGreeting(objValue) && isGreeting(othValue)) {\n * return true;\n * }\n * }\n *\n * var array = ['hello', 'goodbye'];\n * var other = ['hi', 'goodbye'];\n *\n * _.isEqualWith(array, other, customizer);\n * // => true\n */\n function isEqualWith(value, other, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n var result = customizer ? customizer(value, other) : undefined;\n return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result;\n }\n\n /**\n * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,\n * `SyntaxError`, `TypeError`, or `URIError` object.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an error object, else `false`.\n * @example\n *\n * _.isError(new Error);\n * // => true\n *\n * _.isError(Error);\n * // => false\n */\n function isError(value) {\n if (!isObjectLike(value)) {\n return false;\n }\n var tag = baseGetTag(value);\n return tag == errorTag || tag == domExcTag ||\n (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value));\n }\n\n /**\n * Checks if `value` is a finite primitive number.\n *\n * **Note:** This method is based on\n * [`Number.isFinite`](https://mdn.io/Number/isFinite).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.\n * @example\n *\n * _.isFinite(3);\n * // => true\n *\n * _.isFinite(Number.MIN_VALUE);\n * // => true\n *\n * _.isFinite(Infinity);\n * // => false\n *\n * _.isFinite('3');\n * // => false\n */\n function isFinite(value) {\n return typeof value == 'number' && nativeIsFinite(value);\n }\n\n /**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a function, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\n function isFunction(value) {\n if (!isObject(value)) {\n return false;\n }\n // The use of `Object#toString` avoids issues with the `typeof` operator\n // in Safari 9 which returns 'object' for typed arrays and other constructors.\n var tag = baseGetTag(value);\n return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;\n }\n\n /**\n * Checks if `value` is an integer.\n *\n * **Note:** This method is based on\n * [`Number.isInteger`](https://mdn.io/Number/isInteger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an integer, else `false`.\n * @example\n *\n * _.isInteger(3);\n * // => true\n *\n * _.isInteger(Number.MIN_VALUE);\n * // => false\n *\n * _.isInteger(Infinity);\n * // => false\n *\n * _.isInteger('3');\n * // => false\n */\n function isInteger(value) {\n return typeof value == 'number' && value == toInteger(value);\n }\n\n /**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This method is loosely based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n * @example\n *\n * _.isLength(3);\n * // => true\n *\n * _.isLength(Number.MIN_VALUE);\n * // => false\n *\n * _.isLength(Infinity);\n * // => false\n *\n * _.isLength('3');\n * // => false\n */\n function isLength(value) {\n return typeof value == 'number' &&\n value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n }\n\n /**\n * Checks if `value` is the\n * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\n function isObject(value) {\n var type = typeof value;\n return value != null && (type == 'object' || type == 'function');\n }\n\n /**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\n function isObjectLike(value) {\n return value != null && typeof value == 'object';\n }\n\n /**\n * Checks if `value` is classified as a `Map` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n * @example\n *\n * _.isMap(new Map);\n * // => true\n *\n * _.isMap(new WeakMap);\n * // => false\n */\n var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;\n\n /**\n * Performs a partial deep comparison between `object` and `source` to\n * determine if `object` contains equivalent property values.\n *\n * **Note:** This method is equivalent to `_.matches` when `source` is\n * partially applied.\n *\n * Partial comparisons will match empty array and empty object `source`\n * values against any array or object value, respectively. See `_.isEqual`\n * for a list of supported value comparisons.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n *\n * _.isMatch(object, { 'b': 2 });\n * // => true\n *\n * _.isMatch(object, { 'b': 1 });\n * // => false\n */\n function isMatch(object, source) {\n return object === source || baseIsMatch(object, source, getMatchData(source));\n }\n\n /**\n * This method is like `_.isMatch` except that it accepts `customizer` which\n * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n * are handled by the method instead. The `customizer` is invoked with five\n * arguments: (objValue, srcValue, index|key, object, source).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n * @example\n *\n * function isGreeting(value) {\n * return /^h(?:i|ello)$/.test(value);\n * }\n *\n * function customizer(objValue, srcValue) {\n * if (isGreeting(objValue) && isGreeting(srcValue)) {\n * return true;\n * }\n * }\n *\n * var object = { 'greeting': 'hello' };\n * var source = { 'greeting': 'hi' };\n *\n * _.isMatchWith(object, source, customizer);\n * // => true\n */\n function isMatchWith(object, source, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseIsMatch(object, source, getMatchData(source), customizer);\n }\n\n /**\n * Checks if `value` is `NaN`.\n *\n * **Note:** This method is based on\n * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as\n * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for\n * `undefined` and other non-number values.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n * @example\n *\n * _.isNaN(NaN);\n * // => true\n *\n * _.isNaN(new Number(NaN));\n * // => true\n *\n * isNaN(undefined);\n * // => true\n *\n * _.isNaN(undefined);\n * // => false\n */\n function isNaN(value) {\n // An `NaN` primitive is the only value that is not equal to itself.\n // Perform the `toStringTag` check first to avoid errors with some\n // ActiveX objects in IE.\n return isNumber(value) && value != +value;\n }\n\n /**\n * Checks if `value` is a pristine native function.\n *\n * **Note:** This method can't reliably detect native functions in the presence\n * of the core-js package because core-js circumvents this kind of detection.\n * Despite multiple requests, the core-js maintainer has made it clear: any\n * attempt to fix the detection will be obstructed. As a result, we're left\n * with little choice but to throw an error. Unfortunately, this also affects\n * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),\n * which rely on core-js.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n * @example\n *\n * _.isNative(Array.prototype.push);\n * // => true\n *\n * _.isNative(_);\n * // => false\n */\n function isNative(value) {\n if (isMaskable(value)) {\n throw new Error(CORE_ERROR_TEXT);\n }\n return baseIsNative(value);\n }\n\n /**\n * Checks if `value` is `null`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `null`, else `false`.\n * @example\n *\n * _.isNull(null);\n * // => true\n *\n * _.isNull(void 0);\n * // => false\n */\n function isNull(value) {\n return value === null;\n }\n\n /**\n * Checks if `value` is `null` or `undefined`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is nullish, else `false`.\n * @example\n *\n * _.isNil(null);\n * // => true\n *\n * _.isNil(void 0);\n * // => true\n *\n * _.isNil(NaN);\n * // => false\n */\n function isNil(value) {\n return value == null;\n }\n\n /**\n * Checks if `value` is classified as a `Number` primitive or object.\n *\n * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are\n * classified as numbers, use the `_.isFinite` method.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a number, else `false`.\n * @example\n *\n * _.isNumber(3);\n * // => true\n *\n * _.isNumber(Number.MIN_VALUE);\n * // => true\n *\n * _.isNumber(Infinity);\n * // => true\n *\n * _.isNumber('3');\n * // => false\n */\n function isNumber(value) {\n return typeof value == 'number' ||\n (isObjectLike(value) && baseGetTag(value) == numberTag);\n }\n\n /**\n * Checks if `value` is a plain object, that is, an object created by the\n * `Object` constructor or one with a `[[Prototype]]` of `null`.\n *\n * @static\n * @memberOf _\n * @since 0.8.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * _.isPlainObject(new Foo);\n * // => false\n *\n * _.isPlainObject([1, 2, 3]);\n * // => false\n *\n * _.isPlainObject({ 'x': 0, 'y': 0 });\n * // => true\n *\n * _.isPlainObject(Object.create(null));\n * // => true\n */\n function isPlainObject(value) {\n if (!isObjectLike(value) || baseGetTag(value) != objectTag) {\n return false;\n }\n var proto = getPrototype(value);\n if (proto === null) {\n return true;\n }\n var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;\n return typeof Ctor == 'function' && Ctor instanceof Ctor &&\n funcToString.call(Ctor) == objectCtorString;\n }\n\n /**\n * Checks if `value` is classified as a `RegExp` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.\n * @example\n *\n * _.isRegExp(/abc/);\n * // => true\n *\n * _.isRegExp('/abc/');\n * // => false\n */\n var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp;\n\n /**\n * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754\n * double precision number which isn't the result of a rounded unsafe integer.\n *\n * **Note:** This method is based on\n * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.\n * @example\n *\n * _.isSafeInteger(3);\n * // => true\n *\n * _.isSafeInteger(Number.MIN_VALUE);\n * // => false\n *\n * _.isSafeInteger(Infinity);\n * // => false\n *\n * _.isSafeInteger('3');\n * // => false\n */\n function isSafeInteger(value) {\n return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER;\n }\n\n /**\n * Checks if `value` is classified as a `Set` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n * @example\n *\n * _.isSet(new Set);\n * // => true\n *\n * _.isSet(new WeakSet);\n * // => false\n */\n var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;\n\n /**\n * Checks if `value` is classified as a `String` primitive or object.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a string, else `false`.\n * @example\n *\n * _.isString('abc');\n * // => true\n *\n * _.isString(1);\n * // => false\n */\n function isString(value) {\n return typeof value == 'string' ||\n (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);\n }\n\n /**\n * Checks if `value` is classified as a `Symbol` primitive or object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n * @example\n *\n * _.isSymbol(Symbol.iterator);\n * // => true\n *\n * _.isSymbol('abc');\n * // => false\n */\n function isSymbol(value) {\n return typeof value == 'symbol' ||\n (isObjectLike(value) && baseGetTag(value) == symbolTag);\n }\n\n /**\n * Checks if `value` is classified as a typed array.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n * @example\n *\n * _.isTypedArray(new Uint8Array);\n * // => true\n *\n * _.isTypedArray([]);\n * // => false\n */\n var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;\n\n /**\n * Checks if `value` is `undefined`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.\n * @example\n *\n * _.isUndefined(void 0);\n * // => true\n *\n * _.isUndefined(null);\n * // => false\n */\n function isUndefined(value) {\n return value === undefined;\n }\n\n /**\n * Checks if `value` is classified as a `WeakMap` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a weak map, else `false`.\n * @example\n *\n * _.isWeakMap(new WeakMap);\n * // => true\n *\n * _.isWeakMap(new Map);\n * // => false\n */\n function isWeakMap(value) {\n return isObjectLike(value) && getTag(value) == weakMapTag;\n }\n\n /**\n * Checks if `value` is classified as a `WeakSet` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a weak set, else `false`.\n * @example\n *\n * _.isWeakSet(new WeakSet);\n * // => true\n *\n * _.isWeakSet(new Set);\n * // => false\n */\n function isWeakSet(value) {\n return isObjectLike(value) && baseGetTag(value) == weakSetTag;\n }\n\n /**\n * Checks if `value` is less than `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than `other`,\n * else `false`.\n * @see _.gt\n * @example\n *\n * _.lt(1, 3);\n * // => true\n *\n * _.lt(3, 3);\n * // => false\n *\n * _.lt(3, 1);\n * // => false\n */\n var lt = createRelationalOperation(baseLt);\n\n /**\n * Checks if `value` is less than or equal to `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than or equal to\n * `other`, else `false`.\n * @see _.gte\n * @example\n *\n * _.lte(1, 3);\n * // => true\n *\n * _.lte(3, 3);\n * // => true\n *\n * _.lte(3, 1);\n * // => false\n */\n var lte = createRelationalOperation(function(value, other) {\n return value <= other;\n });\n\n /**\n * Converts `value` to an array.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Array} Returns the converted array.\n * @example\n *\n * _.toArray({ 'a': 1, 'b': 2 });\n * // => [1, 2]\n *\n * _.toArray('abc');\n * // => ['a', 'b', 'c']\n *\n * _.toArray(1);\n * // => []\n *\n * _.toArray(null);\n * // => []\n */\n function toArray(value) {\n if (!value) {\n return [];\n }\n if (isArrayLike(value)) {\n return isString(value) ? stringToArray(value) : copyArray(value);\n }\n if (symIterator && value[symIterator]) {\n return iteratorToArray(value[symIterator]());\n }\n var tag = getTag(value),\n func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values);\n\n return func(value);\n }\n\n /**\n * Converts `value` to a finite number.\n *\n * @static\n * @memberOf _\n * @since 4.12.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted number.\n * @example\n *\n * _.toFinite(3.2);\n * // => 3.2\n *\n * _.toFinite(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toFinite(Infinity);\n * // => 1.7976931348623157e+308\n *\n * _.toFinite('3.2');\n * // => 3.2\n */\n function toFinite(value) {\n if (!value) {\n return value === 0 ? value : 0;\n }\n value = toNumber(value);\n if (value === INFINITY || value === -INFINITY) {\n var sign = (value < 0 ? -1 : 1);\n return sign * MAX_INTEGER;\n }\n return value === value ? value : 0;\n }\n\n /**\n * Converts `value` to an integer.\n *\n * **Note:** This method is loosely based on\n * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toInteger(3.2);\n * // => 3\n *\n * _.toInteger(Number.MIN_VALUE);\n * // => 0\n *\n * _.toInteger(Infinity);\n * // => 1.7976931348623157e+308\n *\n * _.toInteger('3.2');\n * // => 3\n */\n function toInteger(value) {\n var result = toFinite(value),\n remainder = result % 1;\n\n return result === result ? (remainder ? result - remainder : result) : 0;\n }\n\n /**\n * Converts `value` to an integer suitable for use as the length of an\n * array-like object.\n *\n * **Note:** This method is based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toLength(3.2);\n * // => 3\n *\n * _.toLength(Number.MIN_VALUE);\n * // => 0\n *\n * _.toLength(Infinity);\n * // => 4294967295\n *\n * _.toLength('3.2');\n * // => 3\n */\n function toLength(value) {\n return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;\n }\n\n /**\n * Converts `value` to a number.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n * @example\n *\n * _.toNumber(3.2);\n * // => 3.2\n *\n * _.toNumber(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toNumber(Infinity);\n * // => Infinity\n *\n * _.toNumber('3.2');\n * // => 3.2\n */\n function toNumber(value) {\n if (typeof value == 'number') {\n return value;\n }\n if (isSymbol(value)) {\n return NAN;\n }\n if (isObject(value)) {\n var other = typeof value.valueOf == 'function' ? value.valueOf() : value;\n value = isObject(other) ? (other + '') : other;\n }\n if (typeof value != 'string') {\n return value === 0 ? value : +value;\n }\n value = value.replace(reTrim, '');\n var isBinary = reIsBinary.test(value);\n return (isBinary || reIsOctal.test(value))\n ? freeParseInt(value.slice(2), isBinary ? 2 : 8)\n : (reIsBadHex.test(value) ? NAN : +value);\n }\n\n /**\n * Converts `value` to a plain object flattening inherited enumerable string\n * keyed properties of `value` to own properties of the plain object.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Object} Returns the converted plain object.\n * @example\n *\n * function Foo() {\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.assign({ 'a': 1 }, new Foo);\n * // => { 'a': 1, 'b': 2 }\n *\n * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));\n * // => { 'a': 1, 'b': 2, 'c': 3 }\n */\n function toPlainObject(value) {\n return copyObject(value, keysIn(value));\n }\n\n /**\n * Converts `value` to a safe integer. A safe integer can be compared and\n * represented correctly.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toSafeInteger(3.2);\n * // => 3\n *\n * _.toSafeInteger(Number.MIN_VALUE);\n * // => 0\n *\n * _.toSafeInteger(Infinity);\n * // => 9007199254740991\n *\n * _.toSafeInteger('3.2');\n * // => 3\n */\n function toSafeInteger(value) {\n return value\n ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER)\n : (value === 0 ? value : 0);\n }\n\n /**\n * Converts `value` to a string. An empty string is returned for `null`\n * and `undefined` values. The sign of `-0` is preserved.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n * @example\n *\n * _.toString(null);\n * // => ''\n *\n * _.toString(-0);\n * // => '-0'\n *\n * _.toString([1, 2, 3]);\n * // => '1,2,3'\n */\n function toString(value) {\n return value == null ? '' : baseToString(value);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Assigns own enumerable string keyed properties of source objects to the\n * destination object. Source objects are applied from left to right.\n * Subsequent sources overwrite property assignments of previous sources.\n *\n * **Note:** This method mutates `object` and is loosely based on\n * [`Object.assign`](https://mdn.io/Object/assign).\n *\n * @static\n * @memberOf _\n * @since 0.10.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.assignIn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * function Bar() {\n * this.c = 3;\n * }\n *\n * Foo.prototype.b = 2;\n * Bar.prototype.d = 4;\n *\n * _.assign({ 'a': 0 }, new Foo, new Bar);\n * // => { 'a': 1, 'c': 3 }\n */\n var assign = createAssigner(function(object, source) {\n if (isPrototype(source) || isArrayLike(source)) {\n copyObject(source, keys(source), object);\n return;\n }\n for (var key in source) {\n if (hasOwnProperty.call(source, key)) {\n assignValue(object, key, source[key]);\n }\n }\n });\n\n /**\n * This method is like `_.assign` except that it iterates over own and\n * inherited source properties.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias extend\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.assign\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * function Bar() {\n * this.c = 3;\n * }\n *\n * Foo.prototype.b = 2;\n * Bar.prototype.d = 4;\n *\n * _.assignIn({ 'a': 0 }, new Foo, new Bar);\n * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }\n */\n var assignIn = createAssigner(function(object, source) {\n copyObject(source, keysIn(source), object);\n });\n\n /**\n * This method is like `_.assignIn` except that it accepts `customizer`\n * which is invoked to produce the assigned values. If `customizer` returns\n * `undefined`, assignment is handled by the method instead. The `customizer`\n * is invoked with five arguments: (objValue, srcValue, key, object, source).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias extendWith\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @see _.assignWith\n * @example\n *\n * function customizer(objValue, srcValue) {\n * return _.isUndefined(objValue) ? srcValue : objValue;\n * }\n *\n * var defaults = _.partialRight(_.assignInWith, customizer);\n *\n * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var assignInWith = createAssigner(function(object, source, srcIndex, customizer) {\n copyObject(source, keysIn(source), object, customizer);\n });\n\n /**\n * This method is like `_.assign` except that it accepts `customizer`\n * which is invoked to produce the assigned values. If `customizer` returns\n * `undefined`, assignment is handled by the method instead. The `customizer`\n * is invoked with five arguments: (objValue, srcValue, key, object, source).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @see _.assignInWith\n * @example\n *\n * function customizer(objValue, srcValue) {\n * return _.isUndefined(objValue) ? srcValue : objValue;\n * }\n *\n * var defaults = _.partialRight(_.assignWith, customizer);\n *\n * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var assignWith = createAssigner(function(object, source, srcIndex, customizer) {\n copyObject(source, keys(source), object, customizer);\n });\n\n /**\n * Creates an array of values corresponding to `paths` of `object`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Array} Returns the picked values.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n *\n * _.at(object, ['a[0].b.c', 'a[1]']);\n * // => [3, 4]\n */\n var at = flatRest(baseAt);\n\n /**\n * Creates an object that inherits from the `prototype` object. If a\n * `properties` object is given, its own enumerable string keyed properties\n * are assigned to the created object.\n *\n * @static\n * @memberOf _\n * @since 2.3.0\n * @category Object\n * @param {Object} prototype The object to inherit from.\n * @param {Object} [properties] The properties to assign to the object.\n * @returns {Object} Returns the new object.\n * @example\n *\n * function Shape() {\n * this.x = 0;\n * this.y = 0;\n * }\n *\n * function Circle() {\n * Shape.call(this);\n * }\n *\n * Circle.prototype = _.create(Shape.prototype, {\n * 'constructor': Circle\n * });\n *\n * var circle = new Circle;\n * circle instanceof Circle;\n * // => true\n *\n * circle instanceof Shape;\n * // => true\n */\n function create(prototype, properties) {\n var result = baseCreate(prototype);\n return properties == null ? result : baseAssign(result, properties);\n }\n\n /**\n * Assigns own and inherited enumerable string keyed properties of source\n * objects to the destination object for all destination properties that\n * resolve to `undefined`. Source objects are applied from left to right.\n * Once a property is set, additional values of the same property are ignored.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.defaultsDeep\n * @example\n *\n * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var defaults = baseRest(function(object, sources) {\n object = Object(object);\n\n var index = -1;\n var length = sources.length;\n var guard = length > 2 ? sources[2] : undefined;\n\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n length = 1;\n }\n\n while (++index < length) {\n var source = sources[index];\n var props = keysIn(source);\n var propsIndex = -1;\n var propsLength = props.length;\n\n while (++propsIndex < propsLength) {\n var key = props[propsIndex];\n var value = object[key];\n\n if (value === undefined ||\n (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) {\n object[key] = source[key];\n }\n }\n }\n\n return object;\n });\n\n /**\n * This method is like `_.defaults` except that it recursively assigns\n * default properties.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 3.10.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.defaults\n * @example\n *\n * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } });\n * // => { 'a': { 'b': 2, 'c': 3 } }\n */\n var defaultsDeep = baseRest(function(args) {\n args.push(undefined, customDefaultsMerge);\n return apply(mergeWith, undefined, args);\n });\n\n /**\n * This method is like `_.find` except that it returns the key of the first\n * element `predicate` returns truthy for instead of the element itself.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {string|undefined} Returns the key of the matched element,\n * else `undefined`.\n * @example\n *\n * var users = {\n * 'barney': { 'age': 36, 'active': true },\n * 'fred': { 'age': 40, 'active': false },\n * 'pebbles': { 'age': 1, 'active': true }\n * };\n *\n * _.findKey(users, function(o) { return o.age < 40; });\n * // => 'barney' (iteration order is not guaranteed)\n *\n * // The `_.matches` iteratee shorthand.\n * _.findKey(users, { 'age': 1, 'active': true });\n * // => 'pebbles'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findKey(users, ['active', false]);\n * // => 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.findKey(users, 'active');\n * // => 'barney'\n */\n function findKey(object, predicate) {\n return baseFindKey(object, getIteratee(predicate, 3), baseForOwn);\n }\n\n /**\n * This method is like `_.findKey` except that it iterates over elements of\n * a collection in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {string|undefined} Returns the key of the matched element,\n * else `undefined`.\n * @example\n *\n * var users = {\n * 'barney': { 'age': 36, 'active': true },\n * 'fred': { 'age': 40, 'active': false },\n * 'pebbles': { 'age': 1, 'active': true }\n * };\n *\n * _.findLastKey(users, function(o) { return o.age < 40; });\n * // => returns 'pebbles' assuming `_.findKey` returns 'barney'\n *\n * // The `_.matches` iteratee shorthand.\n * _.findLastKey(users, { 'age': 36, 'active': true });\n * // => 'barney'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findLastKey(users, ['active', false]);\n * // => 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.findLastKey(users, 'active');\n * // => 'pebbles'\n */\n function findLastKey(object, predicate) {\n return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight);\n }\n\n /**\n * Iterates over own and inherited enumerable string keyed properties of an\n * object and invokes `iteratee` for each property. The iteratee is invoked\n * with three arguments: (value, key, object). Iteratee functions may exit\n * iteration early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 0.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forInRight\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forIn(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).\n */\n function forIn(object, iteratee) {\n return object == null\n ? object\n : baseFor(object, getIteratee(iteratee, 3), keysIn);\n }\n\n /**\n * This method is like `_.forIn` except that it iterates over properties of\n * `object` in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forIn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forInRight(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'.\n */\n function forInRight(object, iteratee) {\n return object == null\n ? object\n : baseForRight(object, getIteratee(iteratee, 3), keysIn);\n }\n\n /**\n * Iterates over own enumerable string keyed properties of an object and\n * invokes `iteratee` for each property. The iteratee is invoked with three\n * arguments: (value, key, object). Iteratee functions may exit iteration\n * early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 0.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forOwnRight\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forOwn(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a' then 'b' (iteration order is not guaranteed).\n */\n function forOwn(object, iteratee) {\n return object && baseForOwn(object, getIteratee(iteratee, 3));\n }\n\n /**\n * This method is like `_.forOwn` except that it iterates over properties of\n * `object` in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forOwn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forOwnRight(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.\n */\n function forOwnRight(object, iteratee) {\n return object && baseForOwnRight(object, getIteratee(iteratee, 3));\n }\n\n /**\n * Creates an array of function property names from own enumerable properties\n * of `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to inspect.\n * @returns {Array} Returns the function names.\n * @see _.functionsIn\n * @example\n *\n * function Foo() {\n * this.a = _.constant('a');\n * this.b = _.constant('b');\n * }\n *\n * Foo.prototype.c = _.constant('c');\n *\n * _.functions(new Foo);\n * // => ['a', 'b']\n */\n function functions(object) {\n return object == null ? [] : baseFunctions(object, keys(object));\n }\n\n /**\n * Creates an array of function property names from own and inherited\n * enumerable properties of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @returns {Array} Returns the function names.\n * @see _.functions\n * @example\n *\n * function Foo() {\n * this.a = _.constant('a');\n * this.b = _.constant('b');\n * }\n *\n * Foo.prototype.c = _.constant('c');\n *\n * _.functionsIn(new Foo);\n * // => ['a', 'b', 'c']\n */\n function functionsIn(object) {\n return object == null ? [] : baseFunctions(object, keysIn(object));\n }\n\n /**\n * Gets the value at `path` of `object`. If the resolved value is\n * `undefined`, the `defaultValue` is returned in its place.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.get(object, 'a[0].b.c');\n * // => 3\n *\n * _.get(object, ['a', '0', 'b', 'c']);\n * // => 3\n *\n * _.get(object, 'a.b.c', 'default');\n * // => 'default'\n */\n function get(object, path, defaultValue) {\n var result = object == null ? undefined : baseGet(object, path);\n return result === undefined ? defaultValue : result;\n }\n\n /**\n * Checks if `path` is a direct property of `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n * @example\n *\n * var object = { 'a': { 'b': 2 } };\n * var other = _.create({ 'a': _.create({ 'b': 2 }) });\n *\n * _.has(object, 'a');\n * // => true\n *\n * _.has(object, 'a.b');\n * // => true\n *\n * _.has(object, ['a', 'b']);\n * // => true\n *\n * _.has(other, 'a');\n * // => false\n */\n function has(object, path) {\n return object != null && hasPath(object, path, baseHas);\n }\n\n /**\n * Checks if `path` is a direct or inherited property of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n * @example\n *\n * var object = _.create({ 'a': _.create({ 'b': 2 }) });\n *\n * _.hasIn(object, 'a');\n * // => true\n *\n * _.hasIn(object, 'a.b');\n * // => true\n *\n * _.hasIn(object, ['a', 'b']);\n * // => true\n *\n * _.hasIn(object, 'b');\n * // => false\n */\n function hasIn(object, path) {\n return object != null && hasPath(object, path, baseHasIn);\n }\n\n /**\n * Creates an object composed of the inverted keys and values of `object`.\n * If `object` contains duplicate values, subsequent values overwrite\n * property assignments of previous values.\n *\n * @static\n * @memberOf _\n * @since 0.7.0\n * @category Object\n * @param {Object} object The object to invert.\n * @returns {Object} Returns the new inverted object.\n * @example\n *\n * var object = { 'a': 1, 'b': 2, 'c': 1 };\n *\n * _.invert(object);\n * // => { '1': 'c', '2': 'b' }\n */\n var invert = createInverter(function(result, value, key) {\n if (value != null &&\n typeof value.toString != 'function') {\n value = nativeObjectToString.call(value);\n }\n\n result[value] = key;\n }, constant(identity));\n\n /**\n * This method is like `_.invert` except that the inverted object is generated\n * from the results of running each element of `object` thru `iteratee`. The\n * corresponding inverted value of each inverted key is an array of keys\n * responsible for generating the inverted value. The iteratee is invoked\n * with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.1.0\n * @category Object\n * @param {Object} object The object to invert.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Object} Returns the new inverted object.\n * @example\n *\n * var object = { 'a': 1, 'b': 2, 'c': 1 };\n *\n * _.invertBy(object);\n * // => { '1': ['a', 'c'], '2': ['b'] }\n *\n * _.invertBy(object, function(value) {\n * return 'group' + value;\n * });\n * // => { 'group1': ['a', 'c'], 'group2': ['b'] }\n */\n var invertBy = createInverter(function(result, value, key) {\n if (value != null &&\n typeof value.toString != 'function') {\n value = nativeObjectToString.call(value);\n }\n\n if (hasOwnProperty.call(result, value)) {\n result[value].push(key);\n } else {\n result[value] = [key];\n }\n }, getIteratee);\n\n /**\n * Invokes the method at `path` of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the method to invoke.\n * @param {...*} [args] The arguments to invoke the method with.\n * @returns {*} Returns the result of the invoked method.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };\n *\n * _.invoke(object, 'a[0].b.c.slice', 1, 3);\n * // => [2, 3]\n */\n var invoke = baseRest(baseInvoke);\n\n /**\n * Creates an array of the own enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects. See the\n * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * for more details.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keys(new Foo);\n * // => ['a', 'b'] (iteration order is not guaranteed)\n *\n * _.keys('hi');\n * // => ['0', '1']\n */\n function keys(object) {\n return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);\n }\n\n /**\n * Creates an array of the own and inherited enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keysIn(new Foo);\n * // => ['a', 'b', 'c'] (iteration order is not guaranteed)\n */\n function keysIn(object) {\n return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);\n }\n\n /**\n * The opposite of `_.mapValues`; this method creates an object with the\n * same values as `object` and keys generated by running each own enumerable\n * string keyed property of `object` thru `iteratee`. The iteratee is invoked\n * with three arguments: (value, key, object).\n *\n * @static\n * @memberOf _\n * @since 3.8.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns the new mapped object.\n * @see _.mapValues\n * @example\n *\n * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {\n * return key + value;\n * });\n * // => { 'a1': 1, 'b2': 2 }\n */\n function mapKeys(object, iteratee) {\n var result = {};\n iteratee = getIteratee(iteratee, 3);\n\n baseForOwn(object, function(value, key, object) {\n baseAssignValue(result, iteratee(value, key, object), value);\n });\n return result;\n }\n\n /**\n * Creates an object with the same keys as `object` and values generated\n * by running each own enumerable string keyed property of `object` thru\n * `iteratee`. The iteratee is invoked with three arguments:\n * (value, key, object).\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns the new mapped object.\n * @see _.mapKeys\n * @example\n *\n * var users = {\n * 'fred': { 'user': 'fred', 'age': 40 },\n * 'pebbles': { 'user': 'pebbles', 'age': 1 }\n * };\n *\n * _.mapValues(users, function(o) { return o.age; });\n * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n *\n * // The `_.property` iteratee shorthand.\n * _.mapValues(users, 'age');\n * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n */\n function mapValues(object, iteratee) {\n var result = {};\n iteratee = getIteratee(iteratee, 3);\n\n baseForOwn(object, function(value, key, object) {\n baseAssignValue(result, key, iteratee(value, key, object));\n });\n return result;\n }\n\n /**\n * This method is like `_.assign` except that it recursively merges own and\n * inherited enumerable string keyed properties of source objects into the\n * destination object. Source properties that resolve to `undefined` are\n * skipped if a destination value exists. Array and plain object properties\n * are merged recursively. Other objects and value types are overridden by\n * assignment. Source objects are applied from left to right. Subsequent\n * sources overwrite property assignments of previous sources.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {\n * 'a': [{ 'b': 2 }, { 'd': 4 }]\n * };\n *\n * var other = {\n * 'a': [{ 'c': 3 }, { 'e': 5 }]\n * };\n *\n * _.merge(object, other);\n * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }\n */\n var merge = createAssigner(function(object, source, srcIndex) {\n baseMerge(object, source, srcIndex);\n });\n\n /**\n * This method is like `_.merge` except that it accepts `customizer` which\n * is invoked to produce the merged values of the destination and source\n * properties. If `customizer` returns `undefined`, merging is handled by the\n * method instead. The `customizer` is invoked with six arguments:\n * (objValue, srcValue, key, object, source, stack).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} customizer The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * function customizer(objValue, srcValue) {\n * if (_.isArray(objValue)) {\n * return objValue.concat(srcValue);\n * }\n * }\n *\n * var object = { 'a': [1], 'b': [2] };\n * var other = { 'a': [3], 'b': [4] };\n *\n * _.mergeWith(object, other, customizer);\n * // => { 'a': [1, 3], 'b': [2, 4] }\n */\n var mergeWith = createAssigner(function(object, source, srcIndex, customizer) {\n baseMerge(object, source, srcIndex, customizer);\n });\n\n /**\n * The opposite of `_.pick`; this method creates an object composed of the\n * own and inherited enumerable property paths of `object` that are not omitted.\n *\n * **Note:** This method is considerably slower than `_.pick`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The source object.\n * @param {...(string|string[])} [paths] The property paths to omit.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.omit(object, ['a', 'c']);\n * // => { 'b': '2' }\n */\n var omit = flatRest(function(object, paths) {\n var result = {};\n if (object == null) {\n return result;\n }\n var isDeep = false;\n paths = arrayMap(paths, function(path) {\n path = castPath(path, object);\n isDeep || (isDeep = path.length > 1);\n return path;\n });\n copyObject(object, getAllKeysIn(object), result);\n if (isDeep) {\n result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone);\n }\n var length = paths.length;\n while (length--) {\n baseUnset(result, paths[length]);\n }\n return result;\n });\n\n /**\n * The opposite of `_.pickBy`; this method creates an object composed of\n * the own and inherited enumerable string keyed properties of `object` that\n * `predicate` doesn't return truthy for. The predicate is invoked with two\n * arguments: (value, key).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The source object.\n * @param {Function} [predicate=_.identity] The function invoked per property.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.omitBy(object, _.isNumber);\n * // => { 'b': '2' }\n */\n function omitBy(object, predicate) {\n return pickBy(object, negate(getIteratee(predicate)));\n }\n\n /**\n * Creates an object composed of the picked `object` properties.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The source object.\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.pick(object, ['a', 'c']);\n * // => { 'a': 1, 'c': 3 }\n */\n var pick = flatRest(function(object, paths) {\n return object == null ? {} : basePick(object, paths);\n });\n\n /**\n * Creates an object composed of the `object` properties `predicate` returns\n * truthy for. The predicate is invoked with two arguments: (value, key).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The source object.\n * @param {Function} [predicate=_.identity] The function invoked per property.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.pickBy(object, _.isNumber);\n * // => { 'a': 1, 'c': 3 }\n */\n function pickBy(object, predicate) {\n if (object == null) {\n return {};\n }\n var props = arrayMap(getAllKeysIn(object), function(prop) {\n return [prop];\n });\n predicate = getIteratee(predicate);\n return basePickBy(object, props, function(value, path) {\n return predicate(value, path[0]);\n });\n }\n\n /**\n * This method is like `_.get` except that if the resolved value is a\n * function it's invoked with the `this` binding of its parent object and\n * its result is returned.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to resolve.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };\n *\n * _.result(object, 'a[0].b.c1');\n * // => 3\n *\n * _.result(object, 'a[0].b.c2');\n * // => 4\n *\n * _.result(object, 'a[0].b.c3', 'default');\n * // => 'default'\n *\n * _.result(object, 'a[0].b.c3', _.constant('default'));\n * // => 'default'\n */\n function result(object, path, defaultValue) {\n path = castPath(path, object);\n\n var index = -1,\n length = path.length;\n\n // Ensure the loop is entered when path is empty.\n if (!length) {\n length = 1;\n object = undefined;\n }\n while (++index < length) {\n var value = object == null ? undefined : object[toKey(path[index])];\n if (value === undefined) {\n index = length;\n value = defaultValue;\n }\n object = isFunction(value) ? value.call(object) : value;\n }\n return object;\n }\n\n /**\n * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,\n * it's created. Arrays are created for missing index properties while objects\n * are created for all other missing properties. Use `_.setWith` to customize\n * `path` creation.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.set(object, 'a[0].b.c', 4);\n * console.log(object.a[0].b.c);\n * // => 4\n *\n * _.set(object, ['x', '0', 'y', 'z'], 5);\n * console.log(object.x[0].y.z);\n * // => 5\n */\n function set(object, path, value) {\n return object == null ? object : baseSet(object, path, value);\n }\n\n /**\n * This method is like `_.set` except that it accepts `customizer` which is\n * invoked to produce the objects of `path`. If `customizer` returns `undefined`\n * path creation is handled by the method instead. The `customizer` is invoked\n * with three arguments: (nsValue, key, nsObject).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {};\n *\n * _.setWith(object, '[0][1]', 'a', Object);\n * // => { '0': { '1': 'a' } }\n */\n function setWith(object, path, value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return object == null ? object : baseSet(object, path, value, customizer);\n }\n\n /**\n * Creates an array of own enumerable string keyed-value pairs for `object`\n * which can be consumed by `_.fromPairs`. If `object` is a map or set, its\n * entries are returned.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias entries\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the key-value pairs.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.toPairs(new Foo);\n * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)\n */\n var toPairs = createToPairs(keys);\n\n /**\n * Creates an array of own and inherited enumerable string keyed-value pairs\n * for `object` which can be consumed by `_.fromPairs`. If `object` is a map\n * or set, its entries are returned.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias entriesIn\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the key-value pairs.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.toPairsIn(new Foo);\n * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)\n */\n var toPairsIn = createToPairs(keysIn);\n\n /**\n * An alternative to `_.reduce`; this method transforms `object` to a new\n * `accumulator` object which is the result of running each of its own\n * enumerable string keyed properties thru `iteratee`, with each invocation\n * potentially mutating the `accumulator` object. If `accumulator` is not\n * provided, a new object with the same `[[Prototype]]` will be used. The\n * iteratee is invoked with four arguments: (accumulator, value, key, object).\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 1.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The custom accumulator value.\n * @returns {*} Returns the accumulated value.\n * @example\n *\n * _.transform([2, 3, 4], function(result, n) {\n * result.push(n *= n);\n * return n % 2 == 0;\n * }, []);\n * // => [4, 9]\n *\n * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {\n * (result[value] || (result[value] = [])).push(key);\n * }, {});\n * // => { '1': ['a', 'c'], '2': ['b'] }\n */\n function transform(object, iteratee, accumulator) {\n var isArr = isArray(object),\n isArrLike = isArr || isBuffer(object) || isTypedArray(object);\n\n iteratee = getIteratee(iteratee, 4);\n if (accumulator == null) {\n var Ctor = object && object.constructor;\n if (isArrLike) {\n accumulator = isArr ? new Ctor : [];\n }\n else if (isObject(object)) {\n accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};\n }\n else {\n accumulator = {};\n }\n }\n (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) {\n return iteratee(accumulator, value, index, object);\n });\n return accumulator;\n }\n\n /**\n * Removes the property at `path` of `object`.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to unset.\n * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 7 } }] };\n * _.unset(object, 'a[0].b.c');\n * // => true\n *\n * console.log(object);\n * // => { 'a': [{ 'b': {} }] };\n *\n * _.unset(object, ['a', '0', 'b', 'c']);\n * // => true\n *\n * console.log(object);\n * // => { 'a': [{ 'b': {} }] };\n */\n function unset(object, path) {\n return object == null ? true : baseUnset(object, path);\n }\n\n /**\n * This method is like `_.set` except that accepts `updater` to produce the\n * value to set. Use `_.updateWith` to customize `path` creation. The `updater`\n * is invoked with one argument: (value).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {Function} updater The function to produce the updated value.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.update(object, 'a[0].b.c', function(n) { return n * n; });\n * console.log(object.a[0].b.c);\n * // => 9\n *\n * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });\n * console.log(object.x[0].y.z);\n * // => 0\n */\n function update(object, path, updater) {\n return object == null ? object : baseUpdate(object, path, castFunction(updater));\n }\n\n /**\n * This method is like `_.update` except that it accepts `customizer` which is\n * invoked to produce the objects of `path`. If `customizer` returns `undefined`\n * path creation is handled by the method instead. The `customizer` is invoked\n * with three arguments: (nsValue, key, nsObject).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {Function} updater The function to produce the updated value.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {};\n *\n * _.updateWith(object, '[0][1]', _.constant('a'), Object);\n * // => { '0': { '1': 'a' } }\n */\n function updateWith(object, path, updater, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);\n }\n\n /**\n * Creates an array of the own enumerable string keyed property values of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property values.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.values(new Foo);\n * // => [1, 2] (iteration order is not guaranteed)\n *\n * _.values('hi');\n * // => ['h', 'i']\n */\n function values(object) {\n return object == null ? [] : baseValues(object, keys(object));\n }\n\n /**\n * Creates an array of the own and inherited enumerable string keyed property\n * values of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property values.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.valuesIn(new Foo);\n * // => [1, 2, 3] (iteration order is not guaranteed)\n */\n function valuesIn(object) {\n return object == null ? [] : baseValues(object, keysIn(object));\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Clamps `number` within the inclusive `lower` and `upper` bounds.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Number\n * @param {number} number The number to clamp.\n * @param {number} [lower] The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the clamped number.\n * @example\n *\n * _.clamp(-10, -5, 5);\n * // => -5\n *\n * _.clamp(10, -5, 5);\n * // => 5\n */\n function clamp(number, lower, upper) {\n if (upper === undefined) {\n upper = lower;\n lower = undefined;\n }\n if (upper !== undefined) {\n upper = toNumber(upper);\n upper = upper === upper ? upper : 0;\n }\n if (lower !== undefined) {\n lower = toNumber(lower);\n lower = lower === lower ? lower : 0;\n }\n return baseClamp(toNumber(number), lower, upper);\n }\n\n /**\n * Checks if `n` is between `start` and up to, but not including, `end`. If\n * `end` is not specified, it's set to `start` with `start` then set to `0`.\n * If `start` is greater than `end` the params are swapped to support\n * negative ranges.\n *\n * @static\n * @memberOf _\n * @since 3.3.0\n * @category Number\n * @param {number} number The number to check.\n * @param {number} [start=0] The start of the range.\n * @param {number} end The end of the range.\n * @returns {boolean} Returns `true` if `number` is in the range, else `false`.\n * @see _.range, _.rangeRight\n * @example\n *\n * _.inRange(3, 2, 4);\n * // => true\n *\n * _.inRange(4, 8);\n * // => true\n *\n * _.inRange(4, 2);\n * // => false\n *\n * _.inRange(2, 2);\n * // => false\n *\n * _.inRange(1.2, 2);\n * // => true\n *\n * _.inRange(5.2, 4);\n * // => false\n *\n * _.inRange(-3, -2, -6);\n * // => true\n */\n function inRange(number, start, end) {\n start = toFinite(start);\n if (end === undefined) {\n end = start;\n start = 0;\n } else {\n end = toFinite(end);\n }\n number = toNumber(number);\n return baseInRange(number, start, end);\n }\n\n /**\n * Produces a random number between the inclusive `lower` and `upper` bounds.\n * If only one argument is provided a number between `0` and the given number\n * is returned. If `floating` is `true`, or either `lower` or `upper` are\n * floats, a floating-point number is returned instead of an integer.\n *\n * **Note:** JavaScript follows the IEEE-754 standard for resolving\n * floating-point values which can produce unexpected results.\n *\n * @static\n * @memberOf _\n * @since 0.7.0\n * @category Number\n * @param {number} [lower=0] The lower bound.\n * @param {number} [upper=1] The upper bound.\n * @param {boolean} [floating] Specify returning a floating-point number.\n * @returns {number} Returns the random number.\n * @example\n *\n * _.random(0, 5);\n * // => an integer between 0 and 5\n *\n * _.random(5);\n * // => also an integer between 0 and 5\n *\n * _.random(5, true);\n * // => a floating-point number between 0 and 5\n *\n * _.random(1.2, 5.2);\n * // => a floating-point number between 1.2 and 5.2\n */\n function random(lower, upper, floating) {\n if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) {\n upper = floating = undefined;\n }\n if (floating === undefined) {\n if (typeof upper == 'boolean') {\n floating = upper;\n upper = undefined;\n }\n else if (typeof lower == 'boolean') {\n floating = lower;\n lower = undefined;\n }\n }\n if (lower === undefined && upper === undefined) {\n lower = 0;\n upper = 1;\n }\n else {\n lower = toFinite(lower);\n if (upper === undefined) {\n upper = lower;\n lower = 0;\n } else {\n upper = toFinite(upper);\n }\n }\n if (lower > upper) {\n var temp = lower;\n lower = upper;\n upper = temp;\n }\n if (floating || lower % 1 || upper % 1) {\n var rand = nativeRandom();\n return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper);\n }\n return baseRandom(lower, upper);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the camel cased string.\n * @example\n *\n * _.camelCase('Foo Bar');\n * // => 'fooBar'\n *\n * _.camelCase('--foo-bar--');\n * // => 'fooBar'\n *\n * _.camelCase('__FOO_BAR__');\n * // => 'fooBar'\n */\n var camelCase = createCompounder(function(result, word, index) {\n word = word.toLowerCase();\n return result + (index ? capitalize(word) : word);\n });\n\n /**\n * Converts the first character of `string` to upper case and the remaining\n * to lower case.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to capitalize.\n * @returns {string} Returns the capitalized string.\n * @example\n *\n * _.capitalize('FRED');\n * // => 'Fred'\n */\n function capitalize(string) {\n return upperFirst(toString(string).toLowerCase());\n }\n\n /**\n * Deburrs `string` by converting\n * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)\n * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)\n * letters to basic Latin letters and removing\n * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to deburr.\n * @returns {string} Returns the deburred string.\n * @example\n *\n * _.deburr('déjà vu');\n * // => 'deja vu'\n */\n function deburr(string) {\n string = toString(string);\n return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');\n }\n\n /**\n * Checks if `string` ends with the given target string.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to inspect.\n * @param {string} [target] The string to search for.\n * @param {number} [position=string.length] The position to search up to.\n * @returns {boolean} Returns `true` if `string` ends with `target`,\n * else `false`.\n * @example\n *\n * _.endsWith('abc', 'c');\n * // => true\n *\n * _.endsWith('abc', 'b');\n * // => false\n *\n * _.endsWith('abc', 'b', 2);\n * // => true\n */\n function endsWith(string, target, position) {\n string = toString(string);\n target = baseToString(target);\n\n var length = string.length;\n position = position === undefined\n ? length\n : baseClamp(toInteger(position), 0, length);\n\n var end = position;\n position -= target.length;\n return position >= 0 && string.slice(position, end) == target;\n }\n\n /**\n * Converts the characters \"&\", \"<\", \">\", '\"', and \"'\" in `string` to their\n * corresponding HTML entities.\n *\n * **Note:** No other characters are escaped. To escape additional\n * characters use a third-party library like [_he_](https://mths.be/he).\n *\n * Though the \">\" character is escaped for symmetry, characters like\n * \">\" and \"/\" don't need escaping in HTML and have no special meaning\n * unless they're part of a tag or unquoted attribute value. See\n * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)\n * (under \"semi-related fun fact\") for more details.\n *\n * When working with HTML you should always\n * [quote attribute values](http://wonko.com/post/html-escaping) to reduce\n * XSS vectors.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category String\n * @param {string} [string=''] The string to escape.\n * @returns {string} Returns the escaped string.\n * @example\n *\n * _.escape('fred, barney, & pebbles');\n * // => 'fred, barney, & pebbles'\n */\n function escape(string) {\n string = toString(string);\n return (string && reHasUnescapedHtml.test(string))\n ? string.replace(reUnescapedHtml, escapeHtmlChar)\n : string;\n }\n\n /**\n * Escapes the `RegExp` special characters \"^\", \"$\", \"\\\", \".\", \"*\", \"+\",\n * \"?\", \"(\", \")\", \"[\", \"]\", \"{\", \"}\", and \"|\" in `string`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to escape.\n * @returns {string} Returns the escaped string.\n * @example\n *\n * _.escapeRegExp('[lodash](https://lodash.com/)');\n * // => '\\[lodash\\]\\(https://lodash\\.com/\\)'\n */\n function escapeRegExp(string) {\n string = toString(string);\n return (string && reHasRegExpChar.test(string))\n ? string.replace(reRegExpChar, '\\\\$&')\n : string;\n }\n\n /**\n * Converts `string` to\n * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the kebab cased string.\n * @example\n *\n * _.kebabCase('Foo Bar');\n * // => 'foo-bar'\n *\n * _.kebabCase('fooBar');\n * // => 'foo-bar'\n *\n * _.kebabCase('__FOO_BAR__');\n * // => 'foo-bar'\n */\n var kebabCase = createCompounder(function(result, word, index) {\n return result + (index ? '-' : '') + word.toLowerCase();\n });\n\n /**\n * Converts `string`, as space separated words, to lower case.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the lower cased string.\n * @example\n *\n * _.lowerCase('--Foo-Bar--');\n * // => 'foo bar'\n *\n * _.lowerCase('fooBar');\n * // => 'foo bar'\n *\n * _.lowerCase('__FOO_BAR__');\n * // => 'foo bar'\n */\n var lowerCase = createCompounder(function(result, word, index) {\n return result + (index ? ' ' : '') + word.toLowerCase();\n });\n\n /**\n * Converts the first character of `string` to lower case.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the converted string.\n * @example\n *\n * _.lowerFirst('Fred');\n * // => 'fred'\n *\n * _.lowerFirst('FRED');\n * // => 'fRED'\n */\n var lowerFirst = createCaseFirst('toLowerCase');\n\n /**\n * Pads `string` on the left and right sides if it's shorter than `length`.\n * Padding characters are truncated if they can't be evenly divided by `length`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.pad('abc', 8);\n * // => ' abc '\n *\n * _.pad('abc', 8, '_-');\n * // => '_-abc_-_'\n *\n * _.pad('abc', 3);\n * // => 'abc'\n */\n function pad(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n if (!length || strLength >= length) {\n return string;\n }\n var mid = (length - strLength) / 2;\n return (\n createPadding(nativeFloor(mid), chars) +\n string +\n createPadding(nativeCeil(mid), chars)\n );\n }\n\n /**\n * Pads `string` on the right side if it's shorter than `length`. Padding\n * characters are truncated if they exceed `length`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.padEnd('abc', 6);\n * // => 'abc '\n *\n * _.padEnd('abc', 6, '_-');\n * // => 'abc_-_'\n *\n * _.padEnd('abc', 3);\n * // => 'abc'\n */\n function padEnd(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n return (length && strLength < length)\n ? (string + createPadding(length - strLength, chars))\n : string;\n }\n\n /**\n * Pads `string` on the left side if it's shorter than `length`. Padding\n * characters are truncated if they exceed `length`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.padStart('abc', 6);\n * // => ' abc'\n *\n * _.padStart('abc', 6, '_-');\n * // => '_-_abc'\n *\n * _.padStart('abc', 3);\n * // => 'abc'\n */\n function padStart(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n return (length && strLength < length)\n ? (createPadding(length - strLength, chars) + string)\n : string;\n }\n\n /**\n * Converts `string` to an integer of the specified radix. If `radix` is\n * `undefined` or `0`, a `radix` of `10` is used unless `value` is a\n * hexadecimal, in which case a `radix` of `16` is used.\n *\n * **Note:** This method aligns with the\n * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category String\n * @param {string} string The string to convert.\n * @param {number} [radix=10] The radix to interpret `value` by.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.parseInt('08');\n * // => 8\n *\n * _.map(['6', '08', '10'], _.parseInt);\n * // => [6, 8, 10]\n */\n function parseInt(string, radix, guard) {\n if (guard || radix == null) {\n radix = 0;\n } else if (radix) {\n radix = +radix;\n }\n return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0);\n }\n\n /**\n * Repeats the given string `n` times.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to repeat.\n * @param {number} [n=1] The number of times to repeat the string.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {string} Returns the repeated string.\n * @example\n *\n * _.repeat('*', 3);\n * // => '***'\n *\n * _.repeat('abc', 2);\n * // => 'abcabc'\n *\n * _.repeat('abc', 0);\n * // => ''\n */\n function repeat(string, n, guard) {\n if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) {\n n = 1;\n } else {\n n = toInteger(n);\n }\n return baseRepeat(toString(string), n);\n }\n\n /**\n * Replaces matches for `pattern` in `string` with `replacement`.\n *\n * **Note:** This method is based on\n * [`String#replace`](https://mdn.io/String/replace).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to modify.\n * @param {RegExp|string} pattern The pattern to replace.\n * @param {Function|string} replacement The match replacement.\n * @returns {string} Returns the modified string.\n * @example\n *\n * _.replace('Hi Fred', 'Fred', 'Barney');\n * // => 'Hi Barney'\n */\n function replace() {\n var args = arguments,\n string = toString(args[0]);\n\n return args.length < 3 ? string : string.replace(args[1], args[2]);\n }\n\n /**\n * Converts `string` to\n * [snake case](https://en.wikipedia.org/wiki/Snake_case).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the snake cased string.\n * @example\n *\n * _.snakeCase('Foo Bar');\n * // => 'foo_bar'\n *\n * _.snakeCase('fooBar');\n * // => 'foo_bar'\n *\n * _.snakeCase('--FOO-BAR--');\n * // => 'foo_bar'\n */\n var snakeCase = createCompounder(function(result, word, index) {\n return result + (index ? '_' : '') + word.toLowerCase();\n });\n\n /**\n * Splits `string` by `separator`.\n *\n * **Note:** This method is based on\n * [`String#split`](https://mdn.io/String/split).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to split.\n * @param {RegExp|string} separator The separator pattern to split by.\n * @param {number} [limit] The length to truncate results to.\n * @returns {Array} Returns the string segments.\n * @example\n *\n * _.split('a-b-c', '-', 2);\n * // => ['a', 'b']\n */\n function split(string, separator, limit) {\n if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {\n separator = limit = undefined;\n }\n limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;\n if (!limit) {\n return [];\n }\n string = toString(string);\n if (string && (\n typeof separator == 'string' ||\n (separator != null && !isRegExp(separator))\n )) {\n separator = baseToString(separator);\n if (!separator && hasUnicode(string)) {\n return castSlice(stringToArray(string), 0, limit);\n }\n }\n return string.split(separator, limit);\n }\n\n /**\n * Converts `string` to\n * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).\n *\n * @static\n * @memberOf _\n * @since 3.1.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the start cased string.\n * @example\n *\n * _.startCase('--foo-bar--');\n * // => 'Foo Bar'\n *\n * _.startCase('fooBar');\n * // => 'Foo Bar'\n *\n * _.startCase('__FOO_BAR__');\n * // => 'FOO BAR'\n */\n var startCase = createCompounder(function(result, word, index) {\n return result + (index ? ' ' : '') + upperFirst(word);\n });\n\n /**\n * Checks if `string` starts with the given target string.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to inspect.\n * @param {string} [target] The string to search for.\n * @param {number} [position=0] The position to search from.\n * @returns {boolean} Returns `true` if `string` starts with `target`,\n * else `false`.\n * @example\n *\n * _.startsWith('abc', 'a');\n * // => true\n *\n * _.startsWith('abc', 'b');\n * // => false\n *\n * _.startsWith('abc', 'b', 1);\n * // => true\n */\n function startsWith(string, target, position) {\n string = toString(string);\n position = position == null\n ? 0\n : baseClamp(toInteger(position), 0, string.length);\n\n target = baseToString(target);\n return string.slice(position, position + target.length) == target;\n }\n\n /**\n * Creates a compiled template function that can interpolate data properties\n * in \"interpolate\" delimiters, HTML-escape interpolated data properties in\n * \"escape\" delimiters, and execute JavaScript in \"evaluate\" delimiters. Data\n * properties may be accessed as free variables in the template. If a setting\n * object is given, it takes precedence over `_.templateSettings` values.\n *\n * **Note:** In the development build `_.template` utilizes\n * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)\n * for easier debugging.\n *\n * For more information on precompiling templates see\n * [lodash's custom builds documentation](https://lodash.com/custom-builds).\n *\n * For more information on Chrome extension sandboxes see\n * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category String\n * @param {string} [string=''] The template string.\n * @param {Object} [options={}] The options object.\n * @param {RegExp} [options.escape=_.templateSettings.escape]\n * The HTML \"escape\" delimiter.\n * @param {RegExp} [options.evaluate=_.templateSettings.evaluate]\n * The \"evaluate\" delimiter.\n * @param {Object} [options.imports=_.templateSettings.imports]\n * An object to import into the template as free variables.\n * @param {RegExp} [options.interpolate=_.templateSettings.interpolate]\n * The \"interpolate\" delimiter.\n * @param {string} [options.sourceURL='lodash.templateSources[n]']\n * The sourceURL of the compiled template.\n * @param {string} [options.variable='obj']\n * The data object variable name.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the compiled template function.\n * @example\n *\n * // Use the \"interpolate\" delimiter to create a compiled template.\n * var compiled = _.template('hello <%= user %>!');\n * compiled({ 'user': 'fred' });\n * // => 'hello fred!'\n *\n * // Use the HTML \"escape\" delimiter to escape data property values.\n * var compiled = _.template('<%- value %>');\n * compiled({ 'value': '