moved sort state to redux, missing apply sort

5 files changed, 1054 insertions, 788 deletions

diff --git a/mitmproxy/web/static/app.js b/mitmproxy/web/static/app.js
index b3736582..b46e2432 100644
--- a/mitmproxy/web/static/app.js
+++ b/mitmproxy/web/static/app.js
@@ -1530,88 +1530,77 @@ var FlowRowContainer = (0, _reactRedux.connect)(function (state, ownProps) {
     };
 })(FlowRow);
 
-var FlowTableHead = function (_React$Component) {
-    _inherits(FlowTableHead, _React$Component);
+function FlowTableHead(_ref2) {
+    var setSort = _ref2.setSort;
+    var columns = _ref2.columns;
+    var sort = _ref2.sort;
+
+
+    //const hasSort = Column.sortKeyFun;
+
+    // let sortDesc = this.props.sort.sortDesc;
+    //
+    // if (Column === this.props.sort.sortColumn) {
+    //     sortDesc = !sortDesc;
+    //     this.props.setSort(sortColumn, sortDesc);
+    // } else {
+    //     this.props.setSort({sortColumn: hasSort && Column, sortDesc: false});
+    // }
+    //
+    // let sortKeyFun = Column.sortKeyFun;
+    // if (sortDesc) {
+    //     sortKeyFun = hasSort && function () {
+    //             const k = Column.sortKeyFun.apply(this, arguments);
+    //             if (_.isString(k)) {
+    //                 return reverseString("" + k);
+    //             }
+    //             return -k;
+    //         };
+    // }
+    //this.props.setSortKeyFun(sortKeyFun);
+
+    var sortColumn = sort.sortColumn;
+    var sortType = sort.sortDesc ? "sort-desc" : "sort-asc";
 
-    function FlowTableHead(props, context) {
-        _classCallCheck(this, FlowTableHead);
-
-        var _this = _possibleConstructorReturn(this, Object.getPrototypeOf(FlowTableHead).call(this, props, context));
-
-        _this.state = { sortColumn: undefined, sortDesc: false };
-        return _this;
-    }
-
-    _createClass(FlowTableHead, [{
-        key: "onClick",
-        value: function onClick(Column) {
-            var hasSort = Column.sortKeyFun;
-
-            var sortDesc = this.state.sortDesc;
-
-            if (Column === this.state.sortColumn) {
-                sortDesc = !sortDesc;
-                this.setState({ sortDesc: sortDesc });
-            } else {
-                this.setState({ sortColumn: hasSort && Column, sortDesc: false });
-            }
-
-            var sortKeyFun = Column.sortKeyFun;
-            if (sortDesc) {
-                sortKeyFun = hasSort && function () {
-                    var k = Column.sortKeyFun.apply(this, arguments);
-                    if (_lodash2.default.isString(k)) {
-                        return (0, _utils.reverseString)("" + k);
-                    }
-                    return -k;
-                };
-            }
-
-            this.props.setSortKeyFun(sortKeyFun);
-        }
-    }, {
-        key: "render",
-        value: function render() {
-            var _this2 = this;
-
-            var sortColumn = this.state.sortColumn;
-            var sortType = this.state.sortDesc ? "sort-desc" : "sort-asc";
-            return _react2.default.createElement(
-                "tr",
-                null,
-                this.props.columns.map(function (Column) {
-                    return _react2.default.createElement(Column.Title, {
-                        key: Column.name,
-                        onClick: function onClick() {
-                            return _this2.onClick(Column);
-                        },
-                        className: sortColumn === Column ? sortType : undefined
-                    });
-                })
-            );
-        }
-    }]);
-
-    return FlowTableHead;
-}(_react2.default.Component);
+    return _react2.default.createElement(
+        "tr",
+        null,
+        columns.map(function (Column) {
+            return _react2.default.createElement(Column.Title, {
+                key: Column.name,
+                onClick: function onClick() {
+                    return setSort({ sortColumn: Column.name, sortDesc: Column.name != sort.sortColumn ? false : !sort.sortDesc });
+                },
+                className: sortColumn === Column.name ? sortType : undefined
+            });
+        })
+    );
+}
 
 FlowTableHead.propTypes = {
-    setSortKeyFun: _react2.default.PropTypes.func.isRequired,
+    setSort: _react2.default.PropTypes.func.isRequired,
+    sort: _react2.default.PropTypes.object.isRequired,
     columns: _react2.default.PropTypes.array.isRequired
 };
 
-var FlowTable = function (_React$Component2) {
-    _inherits(FlowTable, _React$Component2);
+var FlowTableHeadContainer = (0, _reactRedux.connect)(function (state, ownProps) {
+    return {
+        sort: state.flows.sort
+    };
+})(FlowTableHead);
+
+var FlowTable = function (_React$Component) {
+    _inherits(FlowTable, _React$Component);
 
     function FlowTable(props, context) {
         _classCallCheck(this, FlowTable);
 
-        var _this3 = _possibleConstructorReturn(this, Object.getPrototypeOf(FlowTable).call(this, props, context));
+        var _this = _possibleConstructorReturn(this, Object.getPrototypeOf(FlowTable).call(this, props, context));
 
-        _this3.state = { vScroll: (0, _VirtualScroll.calcVScroll)() };
+        _this.state = { vScroll: (0, _VirtualScroll.calcVScroll)() };
 
-        _this3.onViewportUpdate = _this3.onViewportUpdate.bind(_this3);
-        return _this3;
+        _this.onViewportUpdate = _this.onViewportUpdate.bind(_this);
+        return _this;
     }
 
     _createClass(FlowTable, [{
@@ -1627,11 +1616,11 @@ var FlowTable = function (_React$Component2) {
     }, {
         key: "componentWillReceiveProps",
         value: function componentWillReceiveProps(nextProps) {
-            var _this4 = this;
+            var _this2 = this;
 
             if (nextProps.selected && nextProps.selected !== this.props.selected) {
                 window.setTimeout(function () {
-                    return _this4.scrollIntoView(nextProps.selected);
+                    return _this2.scrollIntoView(nextProps.selected);
                 }, 1);
             }
         }
@@ -1683,7 +1672,7 @@ var FlowTable = function (_React$Component2) {
     }, {
         key: "render",
         value: function render() {
-            var _this5 = this;
+            var _this3 = this;
 
             var vScroll = this.state.vScroll;
             var flows = this.props.flows.slice(vScroll.start, vScroll.end);
@@ -1699,9 +1688,10 @@ var FlowTable = function (_React$Component2) {
                     _react2.default.createElement(
                         "thead",
                         { ref: "head", style: { transform: transform } },
-                        _react2.default.createElement(FlowTableHead, {
+                        _react2.default.createElement(FlowTableHeadContainer, {
                             columns: _flowtableColumns2.default,
-                            setSortKeyFun: this.props.setSortKeyFun
+                            setSortKeyFun: this.props.setSortKeyFun,
+                            setSort: this.props.setSort
                         })
                     ),
                     _react2.default.createElement(
@@ -1713,7 +1703,7 @@ var FlowTable = function (_React$Component2) {
                                 key: flow.id,
                                 flowId: flow.id,
                                 columns: _flowtableColumns2.default,
-                                selectFlow: _this5.props.selectFlow
+                                selectFlow: _this3.props.selectFlow
                             });
                         }),
                         _react2.default.createElement("tr", { style: { height: vScroll.paddingBottom } })
@@ -3944,7 +3934,10 @@ var MainView = _react2.default.createClass({
             { className: "main-view" },
             _react2.default.createElement(_flowtable2.default, { ref: "flowTable",
                 selectFlow: this.selectFlow,
-                setSortKeyFun: this.setSortKeyFun,
+                setSortKeyFun: function setSortKeyFun(f) {
+                    return console.log("asdf");
+                },
+                setSort: this.props.setSort,
                 selected: this.props.selectedFlow }),
             details
         );
@@ -3955,6 +3948,7 @@ var MainViewContainer = (0, _reactRedux.connect)(function (state) {
     return {
         flows: state.flows.view,
         filter: state.flows.filter,
+        sort: state.flows.sort,
         highlight: state.flows.highlight,
         selectedFlow: state.flows.all.byId[state.flows.selected[0]]
     };
@@ -3966,6 +3960,9 @@ var MainViewContainer = (0, _reactRedux.connect)(function (state) {
         setFilter: function setFilter(filter) {
             return dispatch((0, _flows.setFilter)(filter));
         },
+        setSort: function setSort(sort) {
+            return dispatch((0, _flows.setSort)(sort));
+        },
         setHighlight: function setHighlight(highlight) {
             return dispatch((0, _flows.setHighlight)(highlight));
         }
@@ -4496,13 +4493,14 @@ exports.fetchLogEntries = fetchList;
 Object.defineProperty(exports, "__esModule", {
     value: true
 });
-exports.fetchFlows = exports.updateFlows = exports.SELECT_FLOW = exports.SET_HIGHLIGHT = exports.SET_FILTER = exports.UPDATE_FLOWS = undefined;
+exports.fetchFlows = exports.updateFlows = exports.SELECT_FLOW = exports.SET_SORT = exports.SET_HIGHLIGHT = exports.SET_FILTER = exports.UPDATE_FLOWS = undefined;
 
 var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
 
 exports.default = reducer;
 exports.setFilter = setFilter;
 exports.setHighlight = setHighlight;
+exports.setSort = setSort;
 exports.selectFlow = selectFlow;
 
 var _list = require("./utils/list");
@@ -4520,6 +4518,7 @@ function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { de
 var UPDATE_FLOWS = exports.UPDATE_FLOWS = "UPDATE_FLOWS";
 var SET_FILTER = exports.SET_FILTER = "SET_FLOW_FILTER";
 var SET_HIGHLIGHT = exports.SET_HIGHLIGHT = "SET_FLOW_HIGHLIGHT";
+var SET_SORT = exports.SET_SORT = "SET_FLOW_SORT";
 var SELECT_FLOW = exports.SELECT_FLOW = "SELECT_FLOW";
 
 var _makeList = (0, _list2.default)(UPDATE_FLOWS, "/flows");
@@ -4534,7 +4533,8 @@ var defaultState = {
     selected: [],
     view: [],
     filter: undefined,
-    highlight: undefined
+    highlight: undefined,
+    sort: { sortColumn: undefined, sortDesc: false }
 };
 
 function makeFilterFn(filter) {
@@ -4563,6 +4563,10 @@ function reducer() {
             return _extends({}, state, {
                 highlight: action.highlight
             });
+        case SET_SORT:
+            return _extends({}, state, {
+                sort: action.sort
+            });
         case SELECT_FLOW:
             return _extends({}, state, {
                 selected: [action.flowId]
@@ -4584,6 +4588,12 @@ function setHighlight(highlight) {
         highlight: highlight
     };
 }
+function setSort(sort) {
+    return {
+        type: SET_SORT,
+        sort: sort
+    };
+}
 function selectFlow(flowId) {
     return {
         type: SELECT_FLOW,
diff --git a/mitmproxy/web/static/vendor.js b/mitmproxy/web/static/vendor.js
index b2e49043..caf49f63 100644
--- a/mitmproxy/web/static/vendor.js
+++ b/mitmproxy/web/static/vendor.js
@@ -764,7 +764,11 @@ function createBrowserHistory() {
   var useRefresh = !isSupported || forceRefresh;
 
   function getCurrentLocation(historyState) {
-    historyState = historyState || window.history.state || {};
+    try {
+      historyState = historyState || window.history.state || {};
+    } catch (e) {
+      historyState = {};
+    }
 
     var path = _DOMUtils.getWindowPath();
     var _historyState = historyState;
@@ -2116,13 +2120,15 @@ var KNOWN_STATICS = {
 };
 
 module.exports = function hoistNonReactStatics(targetComponent, sourceComponent) {
-    var keys = Object.getOwnPropertyNames(sourceComponent);
-    for (var i=0; i<keys.length; ++i) {
-        if (!REACT_STATICS[keys[i]] && !KNOWN_STATICS[keys[i]]) {
-            try {
-                targetComponent[keys[i]] = sourceComponent[keys[i]];
-            } catch (error) {
-
+    if (typeof sourceComponent !== 'string') { // don't hoist over string (html) components
+        var keys = Object.getOwnPropertyNames(sourceComponent);
+        for (var i=0; i<keys.length; ++i) {
+            if (!REACT_STATICS[keys[i]] && !KNOWN_STATICS[keys[i]]) {
+                try {
+                    targetComponent[keys[i]] = sourceComponent[keys[i]];
+                } catch (error) {
+
+                }
             }
         }
     }
@@ -3227,6 +3233,9 @@ var currentQueue;
 var queueIndex = -1;
 
 function cleanUpNextTick() {
+    if (!draining || !currentQueue) {
+        return;
+    }
     draining = false;
     if (currentQueue.length) {
         queue = currentQueue.concat(queue);
@@ -4587,6 +4596,7 @@ function compilePattern(pattern) {
  * - **             Consumes (greedy) all characters up to the next character
  *                  in the pattern, or to the end of the URL if there is none
  *
+ *  The function calls callback(error, matched) when finished.
  * The return value is an object with the following properties:
  *
  * - remainingPathname
@@ -6786,13 +6796,17 @@ function matchRouteDeep(route, location, remainingPathname, paramNames, paramVal
   // Only try to match the path if the route actually has a pattern, and if
   // we're not just searching for potential nested absolute paths.
   if (remainingPathname !== null && pattern) {
-    var matched = (0, _PatternUtils.matchPattern)(pattern, remainingPathname);
-    if (matched) {
-      remainingPathname = matched.remainingPathname;
-      paramNames = [].concat(paramNames, matched.paramNames);
-      paramValues = [].concat(paramValues, matched.paramValues);
-    } else {
-      remainingPathname = null;
+    try {
+      var matched = (0, _PatternUtils.matchPattern)(pattern, remainingPathname);
+      if (matched) {
+        remainingPathname = matched.remainingPathname;
+        paramNames = [].concat(paramNames, matched.paramNames);
+        paramValues = [].concat(paramValues, matched.paramValues);
+      } else {
+        remainingPathname = null;
+      }
+    } catch (error) {
+      callback(error);
     }
 
     // By assumption, pattern is non-empty here, which is the prerequisite for
@@ -27346,7 +27360,7 @@ module.exports.Dispatcher = require('./lib/Dispatcher');
 
 },{"./lib/Dispatcher":5}],"jquery":[function(require,module,exports){
 /*!
- * jQuery JavaScript Library v2.2.3
+ * jQuery JavaScript Library v2.2.4
  * http://jquery.com/
  *
  * Includes Sizzle.js
@@ -27356,7 +27370,7 @@ module.exports.Dispatcher = require('./lib/Dispatcher');
  * Released under the MIT license
  * http://jquery.org/license
  *
- * Date: 2016-04-05T19:26Z
+ * Date: 2016-05-20T17:23Z
  */
 
 (function( global, factory ) {
@@ -27412,7 +27426,7 @@ var support = {};
 
 
 var
-	version = "2.2.3",
+	version = "2.2.4",
 
 	// Define a local copy of jQuery
 	jQuery = function( selector, context ) {
@@ -32353,13 +32367,14 @@ jQuery.Event.prototype = {
 	isDefaultPrevented: returnFalse,
 	isPropagationStopped: returnFalse,
 	isImmediatePropagationStopped: returnFalse,
+	isSimulated: false,
 
 	preventDefault: function() {
 		var e = this.originalEvent;
 
 		this.isDefaultPrevented = returnTrue;
 
-		if ( e ) {
+		if ( e && !this.isSimulated ) {
 			e.preventDefault();
 		}
 	},
@@ -32368,7 +32383,7 @@ jQuery.Event.prototype = {
 
 		this.isPropagationStopped = returnTrue;
 
-		if ( e ) {
+		if ( e && !this.isSimulated ) {
 			e.stopPropagation();
 		}
 	},
@@ -32377,7 +32392,7 @@ jQuery.Event.prototype = {
 
 		this.isImmediatePropagationStopped = returnTrue;
 
-		if ( e ) {
+		if ( e && !this.isSimulated ) {
 			e.stopImmediatePropagation();
 		}
 
@@ -33308,19 +33323,6 @@ function getWidthOrHeight( elem, name, extra ) {
 		styles = getStyles( elem ),
 		isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box";
 
-	// Support: IE11 only
-	// In IE 11 fullscreen elements inside of an iframe have
-	// 100x too small dimensions (gh-1764).
-	if ( document.msFullscreenElement && window.top !== window ) {
-
-		// Support: IE11 only
-		// Running getBoundingClientRect on a disconnected node
-		// in IE throws an error.
-		if ( elem.getClientRects().length ) {
-			val = Math.round( elem.getBoundingClientRect()[ name ] * 100 );
-		}
-	}
-
 	// Some non-html elements return undefined for offsetWidth, so check for null/undefined
 	// svg - https://bugzilla.mozilla.org/show_bug.cgi?id=649285
 	// MathML - https://bugzilla.mozilla.org/show_bug.cgi?id=491668
@@ -35211,6 +35213,7 @@ jQuery.extend( jQuery.event, {
 	},
 
 	// Piggyback on a donor event to simulate a different one
+	// Used only for `focus(in | out)` events
 	simulate: function( type, elem, event ) {
 		var e = jQuery.extend(
 			new jQuery.Event(),
@@ -35218,27 +35221,10 @@ jQuery.extend( jQuery.event, {
 			{
 				type: type,
 				isSimulated: true
-
-				// Previously, `originalEvent: {}` was set here, so stopPropagation call
-				// would not be triggered on donor event, since in our own
-				// jQuery.event.stopPropagation function we had a check for existence of
-				// originalEvent.stopPropagation method, so, consequently it would be a noop.
-				//
-				// But now, this "simulate" function is used only for events
-				// for which stopPropagation() is noop, so there is no need for that anymore.
-				//
-				// For the 1.x branch though, guard for "click" and "submit"
-				// events is still used, but was moved to jQuery.event.stopPropagation function
-				// because `originalEvent` should point to the original event for the constancy
-				// with other events and for more focused logic
 			}
 		);
 
 		jQuery.event.trigger( e, null, elem );
-
-		if ( e.isDefaultPrevented() ) {
-			event.preventDefault();
-		}
 	}
 
 } );
@@ -37192,8 +37178,7 @@ return jQuery;
 (function (global){
 /**
  * @license
- * lodash 4.11.2 (Custom Build) <https://lodash.com/>
- * Build: `lodash -d -o ./foo/lodash.js`
+ * lodash <https://lodash.com/>
  * Copyright jQuery Foundation and other contributors <https://jquery.org/>
  * Released under MIT license <https://lodash.com/license>
  * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
@@ -37205,7 +37190,7 @@ return jQuery;
   var undefined;
 
   /** Used as the semantic version number. */
-  var VERSION = '4.11.2';
+  var VERSION = '4.13.1';
 
   /** Used as the size to enable large array optimizations. */
   var LARGE_ARRAY_SIZE = 200;
@@ -37309,7 +37294,7 @@ return jQuery;
   /** Used to match property names within property paths. */
   var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,
       reIsPlainProp = /^\w*$/,
-      rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]/g;
+      rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(\.|\[\])(?:\4|$))/g;
 
   /**
    * Used to match `RegExp`
@@ -37442,7 +37427,7 @@ return jQuery;
     'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object',
     'Promise', 'Reflect', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError',
     'Uint8Array', 'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap',
-    '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout'
+    '_', 'isFinite', 'parseInt', 'setTimeout'
   ];
 
   /** Used to make template sourceURLs easier to identify. */
@@ -37521,12 +37506,6 @@ return jQuery;
     '&#96;': '`'
   };
 
-  /** Used to determine if values are of the language type `Object`. */
-  var objectTypes = {
-    'function': true,
-    'object': true
-  };
-
   /** Used to escape characters for inclusion in compiled string literals. */
   var stringEscapes = {
     '\\': '\\',
@@ -37542,41 +37521,25 @@ return jQuery;
       freeParseInt = parseInt;
 
   /** Detect free variable `exports`. */
-  var freeExports = (objectTypes[typeof exports] && exports && !exports.nodeType)
-    ? exports
-    : undefined;
+  var freeExports = typeof exports == 'object' && exports;
 
   /** Detect free variable `module`. */
-  var freeModule = (objectTypes[typeof module] && module && !module.nodeType)
-    ? module
-    : undefined;
+  var freeModule = freeExports && typeof module == 'object' && module;
 
   /** Detect the popular CommonJS extension `module.exports`. */
-  var moduleExports = (freeModule && freeModule.exports === freeExports)
-    ? freeExports
-    : undefined;
+  var moduleExports = freeModule && freeModule.exports === freeExports;
 
   /** Detect free variable `global` from Node.js. */
-  var freeGlobal = checkGlobal(freeExports && freeModule && typeof global == 'object' && global);
+  var freeGlobal = checkGlobal(typeof global == 'object' && global);
 
   /** Detect free variable `self`. */
-  var freeSelf = checkGlobal(objectTypes[typeof self] && self);
-
-  /** Detect free variable `window`. */
-  var freeWindow = checkGlobal(objectTypes[typeof window] && window);
+  var freeSelf = checkGlobal(typeof self == 'object' && self);
 
   /** Detect `this` as the global object. */
-  var thisGlobal = checkGlobal(objectTypes[typeof this] && this);
+  var thisGlobal = checkGlobal(typeof this == 'object' && this);
 
-  /**
-   * Used as a reference to the global object.
-   *
-   * The `this` value is used if it's the global object to avoid Greasemonkey's
-   * restricted `window` object, otherwise the `window` object is used.
-   */
-  var root = freeGlobal ||
-    ((freeWindow !== (thisGlobal && thisGlobal.window)) && freeWindow) ||
-      freeSelf || thisGlobal || Function('return this')();
+  /** Used as a reference to the global object. */
+  var root = freeGlobal || freeSelf || thisGlobal || Function('return this')();
 
   /*--------------------------------------------------------------------------*/
 
@@ -37632,7 +37595,7 @@ return jQuery;
    * A specialized version of `baseAggregator` for arrays.
    *
    * @private
-   * @param {Array} array The array to iterate over.
+   * @param {Array} [array] The array to iterate over.
    * @param {Function} setter The function to set `accumulator` values.
    * @param {Function} iteratee The iteratee to transform keys.
    * @param {Object} accumulator The initial aggregated object.
@@ -37640,7 +37603,7 @@ return jQuery;
    */
   function arrayAggregator(array, setter, iteratee, accumulator) {
     var index = -1,
-        length = array.length;
+        length = array ? array.length : 0;
 
     while (++index < length) {
       var value = array[index];
@@ -37650,41 +37613,17 @@ return jQuery;
   }
 
   /**
-   * Creates a new array concatenating `array` with `other`.
-   *
-   * @private
-   * @param {Array} array The first array to concatenate.
-   * @param {Array} other The second array to concatenate.
-   * @returns {Array} Returns the new concatenated array.
-   */
-  function arrayConcat(array, other) {
-    var index = -1,
-        length = array.length,
-        othIndex = -1,
-        othLength = other.length,
-        result = Array(length + othLength);
-
-    while (++index < length) {
-      result[index] = array[index];
-    }
-    while (++othIndex < othLength) {
-      result[index++] = other[othIndex];
-    }
-    return result;
-  }
-
-  /**
    * A specialized version of `_.forEach` for arrays without support for
    * iteratee shorthands.
    *
    * @private
-   * @param {Array} array The array to iterate over.
+   * @param {Array} [array] The array to iterate over.
    * @param {Function} iteratee The function invoked per iteration.
    * @returns {Array} Returns `array`.
    */
   function arrayEach(array, iteratee) {
     var index = -1,
-        length = array.length;
+        length = array ? array.length : 0;
 
     while (++index < length) {
       if (iteratee(array[index], index, array) === false) {
@@ -37699,12 +37638,12 @@ return jQuery;
    * iteratee shorthands.
    *
    * @private
-   * @param {Array} array The array to iterate over.
+   * @param {Array} [array] The array to iterate over.
    * @param {Function} iteratee The function invoked per iteration.
    * @returns {Array} Returns `array`.
    */
   function arrayEachRight(array, iteratee) {
-    var length = array.length;
+    var length = array ? array.length : 0;
 
     while (length--) {
       if (iteratee(array[length], length, array) === false) {
@@ -37719,14 +37658,14 @@ return jQuery;
    * iteratee shorthands.
    *
    * @private
-   * @param {Array} array The array to iterate over.
+   * @param {Array} [array] The array to iterate over.
    * @param {Function} predicate The function invoked per iteration.
    * @returns {boolean} Returns `true` if all elements pass the predicate check,
    *  else `false`.
    */
   function arrayEvery(array, predicate) {
     var index = -1,
-        length = array.length;
+        length = array ? array.length : 0;
 
     while (++index < length) {
       if (!predicate(array[index], index, array)) {
@@ -37741,13 +37680,13 @@ return jQuery;
    * iteratee shorthands.
    *
    * @private
-   * @param {Array} array The array to iterate over.
+   * @param {Array} [array] The array to iterate over.
    * @param {Function} predicate The function invoked per iteration.
    * @returns {Array} Returns the new filtered array.
    */
   function arrayFilter(array, predicate) {
     var index = -1,
-        length = array.length,
+        length = array ? array.length : 0,
         resIndex = 0,
         result = [];
 
@@ -37765,26 +37704,27 @@ return jQuery;
    * specifying an index to search from.
    *
    * @private
-   * @param {Array} array The array to search.
+   * @param {Array} [array] The array to search.
    * @param {*} target The value to search for.
    * @returns {boolean} Returns `true` if `target` is found, else `false`.
    */
   function arrayIncludes(array, value) {
-    return !!array.length && baseIndexOf(array, value, 0) > -1;
+    var length = array ? array.length : 0;
+    return !!length && baseIndexOf(array, value, 0) > -1;
   }
 
   /**
    * This function is like `arrayIncludes` except that it accepts a comparator.
    *
    * @private
-   * @param {Array} array The array to search.
+   * @param {Array} [array] The array to search.
    * @param {*} target The value to search for.
    * @param {Function} comparator The comparator invoked per element.
    * @returns {boolean} Returns `true` if `target` is found, else `false`.
    */
   function arrayIncludesWith(array, value, comparator) {
     var index = -1,
-        length = array.length;
+        length = array ? array.length : 0;
 
     while (++index < length) {
       if (comparator(value, array[index])) {
@@ -37799,13 +37739,13 @@ return jQuery;
    * shorthands.
    *
    * @private
-   * @param {Array} array The array to iterate over.
+   * @param {Array} [array] The array to iterate over.
    * @param {Function} iteratee The function invoked per iteration.
    * @returns {Array} Returns the new mapped array.
    */
   function arrayMap(array, iteratee) {
     var index = -1,
-        length = array.length,
+        length = array ? array.length : 0,
         result = Array(length);
 
     while (++index < length) {
@@ -37838,7 +37778,7 @@ return jQuery;
    * iteratee shorthands.
    *
    * @private
-   * @param {Array} array The array to iterate over.
+   * @param {Array} [array] The array to iterate over.
    * @param {Function} iteratee The function invoked per iteration.
    * @param {*} [accumulator] The initial value.
    * @param {boolean} [initAccum] Specify using the first element of `array` as
@@ -37847,7 +37787,7 @@ return jQuery;
    */
   function arrayReduce(array, iteratee, accumulator, initAccum) {
     var index = -1,
-        length = array.length;
+        length = array ? array.length : 0;
 
     if (initAccum && length) {
       accumulator = array[++index];
@@ -37863,7 +37803,7 @@ return jQuery;
    * iteratee shorthands.
    *
    * @private
-   * @param {Array} array The array to iterate over.
+   * @param {Array} [array] The array to iterate over.
    * @param {Function} iteratee The function invoked per iteration.
    * @param {*} [accumulator] The initial value.
    * @param {boolean} [initAccum] Specify using the last element of `array` as
@@ -37871,7 +37811,7 @@ return jQuery;
    * @returns {*} Returns the accumulated value.
    */
   function arrayReduceRight(array, iteratee, accumulator, initAccum) {
-    var length = array.length;
+    var length = array ? array.length : 0;
     if (initAccum && length) {
       accumulator = array[--length];
     }
@@ -37886,14 +37826,14 @@ return jQuery;
    * shorthands.
    *
    * @private
-   * @param {Array} array The array to iterate over.
+   * @param {Array} [array] The array to iterate over.
    * @param {Function} predicate The function invoked per iteration.
    * @returns {boolean} Returns `true` if any element passes the predicate check,
    *  else `false`.
    */
   function arraySome(array, predicate) {
     var index = -1,
-        length = array.length;
+        length = array ? array.length : 0;
 
     while (++index < length) {
       if (predicate(array[index], index, array)) {
@@ -37904,23 +37844,21 @@ return jQuery;
   }
 
   /**
-   * The base implementation of methods like `_.find` and `_.findKey`, without
-   * support for iteratee shorthands, which iterates over `collection` using
-   * `eachFunc`.
+   * The base implementation of methods like `_.findKey` and `_.findLastKey`,
+   * without support for iteratee shorthands, which iterates over `collection`
+   * using `eachFunc`.
    *
    * @private
    * @param {Array|Object} collection The collection to search.
    * @param {Function} predicate The function invoked per iteration.
    * @param {Function} eachFunc The function to iterate over `collection`.
-   * @param {boolean} [retKey] Specify returning the key of the found element
-   *  instead of the element itself.
    * @returns {*} Returns the found element or its key, else `undefined`.
    */
-  function baseFind(collection, predicate, eachFunc, retKey) {
+  function baseFindKey(collection, predicate, eachFunc) {
     var result;
     eachFunc(collection, function(value, key, collection) {
       if (predicate(value, key, collection)) {
-        result = retKey ? key : value;
+        result = key;
         return false;
       }
     });
@@ -37934,12 +37872,13 @@ return jQuery;
    * @private
    * @param {Array} array The array to search.
    * @param {Function} predicate The function invoked per iteration.
+   * @param {number} fromIndex The index to search from.
    * @param {boolean} [fromRight] Specify iterating from right to left.
    * @returns {number} Returns the index of the matched value, else `-1`.
    */
-  function baseFindIndex(array, predicate, fromRight) {
+  function baseFindIndex(array, predicate, fromIndex, fromRight) {
     var length = array.length,
-        index = fromRight ? length : -1;
+        index = fromIndex + (fromRight ? 1 : -1);
 
     while ((fromRight ? index-- : ++index < length)) {
       if (predicate(array[index], index, array)) {
@@ -38100,7 +38039,7 @@ return jQuery;
    * @private
    * @param {Object} object The object to query.
    * @param {Array} props The property names to get values for.
-   * @returns {Object} Returns the new array of key-value pairs.
+   * @returns {Object} Returns the key-value pairs.
    */
   function baseToPairs(object, props) {
     return arrayMap(props, function(key) {
@@ -38113,7 +38052,7 @@ return jQuery;
    *
    * @private
    * @param {Function} func The function to cap arguments for.
-   * @returns {Function} Returns the new function.
+   * @returns {Function} Returns the new capped function.
    */
   function baseUnary(func) {
     return function(value) {
@@ -38138,6 +38077,18 @@ return jQuery;
   }
 
   /**
+   * Checks if a cache value for `key` exists.
+   *
+   * @private
+   * @param {Object} cache The cache to query.
+   * @param {string} key The key of the entry to check.
+   * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
+   */
+  function cacheHas(cache, key) {
+    return cache.has(key);
+  }
+
+  /**
    * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol
    * that is not found in the character symbols.
    *
@@ -38235,6 +38186,18 @@ return jQuery;
   }
 
   /**
+   * Gets the value at `key` of `object`.
+   *
+   * @private
+   * @param {Object} [object] The object to query.
+   * @param {string} key The key of the property to get.
+   * @returns {*} Returns the property value.
+   */
+  function getValue(object, key) {
+    return object == null ? undefined : object[key];
+  }
+
+  /**
    * Gets the index at which the first occurrence of `NaN` is found in `array`.
    *
    * @private
@@ -38245,7 +38208,7 @@ return jQuery;
    */
   function indexOfNaN(array, fromIndex, fromRight) {
     var length = array.length,
-        index = fromIndex + (fromRight ? 0 : -1);
+        index = fromIndex + (fromRight ? 1 : -1);
 
     while ((fromRight ? index-- : ++index < length)) {
       var other = array[index];
@@ -38293,11 +38256,11 @@ return jQuery;
   }
 
   /**
-   * Converts `map` to an array.
+   * Converts `map` to its key-value pairs.
    *
    * @private
    * @param {Object} map The map to convert.
-   * @returns {Array} Returns the converted array.
+   * @returns {Array} Returns the key-value pairs.
    */
   function mapToArray(map) {
     var index = -1,
@@ -38335,11 +38298,11 @@ return jQuery;
   }
 
   /**
-   * Converts `set` to an array.
+   * Converts `set` to an array of its values.
    *
    * @private
    * @param {Object} set The set to convert.
-   * @returns {Array} Returns the converted array.
+   * @returns {Array} Returns the values.
    */
   function setToArray(set) {
     var index = -1,
@@ -38352,6 +38315,23 @@ return jQuery;
   }
 
   /**
+   * Converts `set` to its value-value pairs.
+   *
+   * @private
+   * @param {Object} set The set to convert.
+   * @returns {Array} Returns the value-value pairs.
+   */
+  function setToPairs(set) {
+    var index = -1,
+        result = Array(set.size);
+
+    set.forEach(function(value) {
+      result[++index] = [value, value];
+    });
+    return result;
+  }
+
+  /**
    * Gets the number of symbols in `string`.
    *
    * @private
@@ -38419,10 +38399,10 @@ return jQuery;
    * lodash.isFunction(lodash.bar);
    * // => true
    *
-   * // Use `context` to mock `Date#getTime` use in `_.now`.
-   * var mock = _.runInContext({
+   * // Use `context` to stub `Date#getTime` use in `_.now`.
+   * var stubbed = _.runInContext({
    *   'Date': function() {
-   *     return { 'getTime': getTimeMock };
+   *     return { 'getTime': stubGetTime };
    *   }
    * });
    *
@@ -38444,6 +38424,15 @@ return jQuery;
         objectProto = context.Object.prototype,
         stringProto = context.String.prototype;
 
+    /** Used to detect overreaching core-js shims. */
+    var coreJsData = context['__core-js_shared__'];
+
+    /** Used to detect methods masquerading as native. */
+    var maskSrcKey = (function() {
+      var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');
+      return uid ? ('Symbol(src)_1.' + uid) : '';
+    }());
+
     /** Used to resolve the decompiled source of functions. */
     var funcToString = context.Function.prototype.toString;
 
@@ -38477,15 +38466,16 @@ return jQuery;
         Reflect = context.Reflect,
         Symbol = context.Symbol,
         Uint8Array = context.Uint8Array,
-        clearTimeout = context.clearTimeout,
         enumerate = Reflect ? Reflect.enumerate : undefined,
         getOwnPropertySymbols = Object.getOwnPropertySymbols,
         iteratorSymbol = typeof (iteratorSymbol = Symbol && Symbol.iterator) == 'symbol' ? iteratorSymbol : undefined,
         objectCreate = Object.create,
         propertyIsEnumerable = objectProto.propertyIsEnumerable,
-        setTimeout = context.setTimeout,
         splice = arrayProto.splice;
 
+    /** Built-in method references that are mockable. */
+    var setTimeout = function(func, wait) { return context.setTimeout.call(root, func, wait); };
+
     /* Built-in method references for those with the same name as other `lodash` methods. */
     var nativeCeil = Math.ceil,
         nativeFloor = Math.floor,
@@ -38604,22 +38594,24 @@ return jQuery;
      * `floor`, `forEach`, `forEachRight`, `forIn`, `forInRight`, `forOwn`,
      * `forOwnRight`, `get`, `gt`, `gte`, `has`, `hasIn`, `head`, `identity`,
      * `includes`, `indexOf`, `inRange`, `invoke`, `isArguments`, `isArray`,
-     * `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, `isBoolean`, `isBuffer`,
-     * `isDate`, `isElement`, `isEmpty`, `isEqual`, `isEqualWith`, `isError`,
-     * `isFinite`, `isFunction`, `isInteger`, `isLength`, `isMap`, `isMatch`,
-     * `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, `isNumber`,
-     * `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, `isSafeInteger`,
-     * `isSet`, `isString`, `isUndefined`, `isTypedArray`, `isWeakMap`, `isWeakSet`,
-     * `join`, `kebabCase`, `last`, `lastIndexOf`, `lowerCase`, `lowerFirst`,
-     * `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, `min`, `minBy`, `multiply`,
-     * `noConflict`, `noop`, `now`, `nth`, `pad`, `padEnd`, `padStart`, `parseInt`,
-     * `pop`, `random`, `reduce`, `reduceRight`, `repeat`, `result`, `round`,
-     * `runInContext`, `sample`, `shift`, `size`, `snakeCase`, `some`, `sortedIndex`,
-     * `sortedIndexBy`, `sortedLastIndex`, `sortedLastIndexBy`, `startCase`,
-     * `startsWith`, `subtract`, `sum`, `sumBy`, `template`, `times`, `toInteger`,
-     * `toJSON`, `toLength`, `toLower`, `toNumber`, `toSafeInteger`, `toString`,
-     * `toUpper`, `trim`, `trimEnd`, `trimStart`, `truncate`, `unescape`,
-     * `uniqueId`, `upperCase`, `upperFirst`, `value`, and `words`
+     * `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, `isBoolean`,
+     * `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, `isEqualWith`,
+     * `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, `isMap`,
+     * `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,
+     * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,
+     * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,
+     * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,
+     * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,
+     * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,
+     * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,
+     * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,
+     * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,
+     * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,
+     * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,
+     * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,
+     * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,
+     * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,
+     * `upperFirst`, `value`, and `words`
      *
      * @name _
      * @constructor
@@ -38878,64 +38870,212 @@ return jQuery;
      *
      * @private
      * @constructor
-     * @returns {Object} Returns the new hash object.
+     * @param {Array} [entries] The key-value pairs to cache.
      */
-    function Hash() {}
+    function Hash(entries) {
+      var index = -1,
+          length = entries ? entries.length : 0;
+
+      this.clear();
+      while (++index < length) {
+        var entry = entries[index];
+        this.set(entry[0], entry[1]);
+      }
+    }
+
+    /**
+     * Removes all key-value entries from the hash.
+     *
+     * @private
+     * @name clear
+     * @memberOf Hash
+     */
+    function hashClear() {
+      this.__data__ = nativeCreate ? nativeCreate(null) : {};
+    }
 
     /**
      * Removes `key` and its value from the hash.
      *
      * @private
+     * @name delete
+     * @memberOf Hash
      * @param {Object} hash The hash to modify.
      * @param {string} key The key of the value to remove.
      * @returns {boolean} Returns `true` if the entry was removed, else `false`.
      */
-    function hashDelete(hash, key) {
-      return hashHas(hash, key) && delete hash[key];
+    function hashDelete(key) {
+      return this.has(key) && delete this.__data__[key];
     }
 
     /**
      * Gets the hash value for `key`.
      *
      * @private
-     * @param {Object} hash The hash to query.
+     * @name get
+     * @memberOf Hash
      * @param {string} key The key of the value to get.
      * @returns {*} Returns the entry value.
      */
-    function hashGet(hash, key) {
+    function hashGet(key) {
+      var data = this.__data__;
       if (nativeCreate) {
-        var result = hash[key];
+        var result = data[key];
         return result === HASH_UNDEFINED ? undefined : result;
       }
-      return hasOwnProperty.call(hash, key) ? hash[key] : undefined;
+      return hasOwnProperty.call(data, key) ? data[key] : undefined;
     }
 
     /**
      * Checks if a hash value for `key` exists.
      *
      * @private
-     * @param {Object} hash The hash to query.
+     * @name has
+     * @memberOf Hash
      * @param {string} key The key of the entry to check.
      * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
      */
-    function hashHas(hash, key) {
-      return nativeCreate ? hash[key] !== undefined : hasOwnProperty.call(hash, key);
+    function hashHas(key) {
+      var data = this.__data__;
+      return nativeCreate ? data[key] !== undefined : hasOwnProperty.call(data, key);
     }
 
     /**
      * Sets the hash `key` to `value`.
      *
      * @private
-     * @param {Object} hash The hash to modify.
+     * @name set
+     * @memberOf Hash
+     * @param {string} key The key of the value to set.
+     * @param {*} value The value to set.
+     * @returns {Object} Returns the hash instance.
+     */
+    function hashSet(key, value) {
+      var data = this.__data__;
+      data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;
+      return this;
+    }
+
+    // Add methods to `Hash`.
+    Hash.prototype.clear = hashClear;
+    Hash.prototype['delete'] = hashDelete;
+    Hash.prototype.get = hashGet;
+    Hash.prototype.has = hashHas;
+    Hash.prototype.set = hashSet;
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Creates an list cache object.
+     *
+     * @private
+     * @constructor
+     * @param {Array} [entries] The key-value pairs to cache.
+     */
+    function ListCache(entries) {
+      var index = -1,
+          length = entries ? entries.length : 0;
+
+      this.clear();
+      while (++index < length) {
+        var entry = entries[index];
+        this.set(entry[0], entry[1]);
+      }
+    }
+
+    /**
+     * Removes all key-value entries from the list cache.
+     *
+     * @private
+     * @name clear
+     * @memberOf ListCache
+     */
+    function listCacheClear() {
+      this.__data__ = [];
+    }
+
+    /**
+     * Removes `key` and its value from the list cache.
+     *
+     * @private
+     * @name delete
+     * @memberOf ListCache
+     * @param {string} key The key of the value to remove.
+     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
+     */
+    function listCacheDelete(key) {
+      var data = this.__data__,
+          index = assocIndexOf(data, key);
+
+      if (index < 0) {
+        return false;
+      }
+      var lastIndex = data.length - 1;
+      if (index == lastIndex) {
+        data.pop();
+      } else {
+        splice.call(data, index, 1);
+      }
+      return true;
+    }
+
+    /**
+     * Gets the list cache value for `key`.
+     *
+     * @private
+     * @name get
+     * @memberOf ListCache
+     * @param {string} key The key of the value to get.
+     * @returns {*} Returns the entry value.
+     */
+    function listCacheGet(key) {
+      var data = this.__data__,
+          index = assocIndexOf(data, key);
+
+      return index < 0 ? undefined : data[index][1];
+    }
+
+    /**
+     * Checks if a list cache value for `key` exists.
+     *
+     * @private
+     * @name has
+     * @memberOf ListCache
+     * @param {string} key The key of the entry to check.
+     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
+     */
+    function listCacheHas(key) {
+      return assocIndexOf(this.__data__, key) > -1;
+    }
+
+    /**
+     * Sets the list cache `key` to `value`.
+     *
+     * @private
+     * @name set
+     * @memberOf ListCache
      * @param {string} key The key of the value to set.
      * @param {*} value The value to set.
+     * @returns {Object} Returns the list cache instance.
      */
-    function hashSet(hash, key, value) {
-      hash[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;
+    function listCacheSet(key, value) {
+      var data = this.__data__,
+          index = assocIndexOf(data, key);
+
+      if (index < 0) {
+        data.push([key, value]);
+      } else {
+        data[index][1] = value;
+      }
+      return this;
     }
 
-    // Avoid inheriting from `Object.prototype` when possible.
-    Hash.prototype = nativeCreate ? nativeCreate(null) : objectProto;
+    // Add methods to `ListCache`.
+    ListCache.prototype.clear = listCacheClear;
+    ListCache.prototype['delete'] = listCacheDelete;
+    ListCache.prototype.get = listCacheGet;
+    ListCache.prototype.has = listCacheHas;
+    ListCache.prototype.set = listCacheSet;
 
     /*------------------------------------------------------------------------*/
 
@@ -38944,15 +39084,15 @@ return jQuery;
      *
      * @private
      * @constructor
-     * @param {Array} [values] The values to cache.
+     * @param {Array} [entries] The key-value pairs to cache.
      */
-    function MapCache(values) {
+    function MapCache(entries) {
       var index = -1,
-          length = values ? values.length : 0;
+          length = entries ? entries.length : 0;
 
       this.clear();
       while (++index < length) {
-        var entry = values[index];
+        var entry = entries[index];
         this.set(entry[0], entry[1]);
       }
     }
@@ -38964,10 +39104,10 @@ return jQuery;
      * @name clear
      * @memberOf MapCache
      */
-    function mapClear() {
+    function mapCacheClear() {
       this.__data__ = {
         'hash': new Hash,
-        'map': Map ? new Map : [],
+        'map': new (Map || ListCache),
         'string': new Hash
       };
     }
@@ -38981,12 +39121,8 @@ return jQuery;
      * @param {string} key The key of the value to remove.
      * @returns {boolean} Returns `true` if the entry was removed, else `false`.
      */
-    function mapDelete(key) {
-      var data = this.__data__;
-      if (isKeyable(key)) {
-        return hashDelete(typeof key == 'string' ? data.string : data.hash, key);
-      }
-      return Map ? data.map['delete'](key) : assocDelete(data.map, key);
+    function mapCacheDelete(key) {
+      return getMapData(this, key)['delete'](key);
     }
 
     /**
@@ -38998,12 +39134,8 @@ return jQuery;
      * @param {string} key The key of the value to get.
      * @returns {*} Returns the entry value.
      */
-    function mapGet(key) {
-      var data = this.__data__;
-      if (isKeyable(key)) {
-        return hashGet(typeof key == 'string' ? data.string : data.hash, key);
-      }
-      return Map ? data.map.get(key) : assocGet(data.map, key);
+    function mapCacheGet(key) {
+      return getMapData(this, key).get(key);
     }
 
     /**
@@ -39015,12 +39147,8 @@ return jQuery;
      * @param {string} key The key of the entry to check.
      * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
      */
-    function mapHas(key) {
-      var data = this.__data__;
-      if (isKeyable(key)) {
-        return hashHas(typeof key == 'string' ? data.string : data.hash, key);
-      }
-      return Map ? data.map.has(key) : assocHas(data.map, key);
+    function mapCacheHas(key) {
+      return getMapData(this, key).has(key);
     }
 
     /**
@@ -39033,30 +39161,23 @@ return jQuery;
      * @param {*} value The value to set.
      * @returns {Object} Returns the map cache instance.
      */
-    function mapSet(key, value) {
-      var data = this.__data__;
-      if (isKeyable(key)) {
-        hashSet(typeof key == 'string' ? data.string : data.hash, key, value);
-      } else if (Map) {
-        data.map.set(key, value);
-      } else {
-        assocSet(data.map, key, value);
-      }
+    function mapCacheSet(key, value) {
+      getMapData(this, key).set(key, value);
       return this;
     }
 
     // Add methods to `MapCache`.
-    MapCache.prototype.clear = mapClear;
-    MapCache.prototype['delete'] = mapDelete;
-    MapCache.prototype.get = mapGet;
-    MapCache.prototype.has = mapHas;
-    MapCache.prototype.set = mapSet;
+    MapCache.prototype.clear = mapCacheClear;
+    MapCache.prototype['delete'] = mapCacheDelete;
+    MapCache.prototype.get = mapCacheGet;
+    MapCache.prototype.has = mapCacheHas;
+    MapCache.prototype.set = mapCacheSet;
 
     /*------------------------------------------------------------------------*/
 
     /**
      *
-     * Creates a set cache object to store unique values.
+     * Creates an array cache object to store unique values.
      *
      * @private
      * @constructor
@@ -39068,52 +39189,41 @@ return jQuery;
 
       this.__data__ = new MapCache;
       while (++index < length) {
-        this.push(values[index]);
+        this.add(values[index]);
       }
     }
 
     /**
-     * Checks if `value` is in `cache`.
+     * Adds `value` to the array cache.
      *
      * @private
-     * @param {Object} cache The set cache to search.
-     * @param {*} value The value to search for.
-     * @returns {number} Returns `true` if `value` is found, else `false`.
+     * @name add
+     * @memberOf SetCache
+     * @alias push
+     * @param {*} value The value to cache.
+     * @returns {Object} Returns the cache instance.
      */
-    function cacheHas(cache, value) {
-      var map = cache.__data__;
-      if (isKeyable(value)) {
-        var data = map.__data__,
-            hash = typeof value == 'string' ? data.string : data.hash;
-
-        return hash[value] === HASH_UNDEFINED;
-      }
-      return map.has(value);
+    function setCacheAdd(value) {
+      this.__data__.set(value, HASH_UNDEFINED);
+      return this;
     }
 
     /**
-     * Adds `value` to the set cache.
+     * Checks if `value` is in the array cache.
      *
      * @private
-     * @name push
+     * @name has
      * @memberOf SetCache
-     * @param {*} value The value to cache.
+     * @param {*} value The value to search for.
+     * @returns {number} Returns `true` if `value` is found, else `false`.
      */
-    function cachePush(value) {
-      var map = this.__data__;
-      if (isKeyable(value)) {
-        var data = map.__data__,
-            hash = typeof value == 'string' ? data.string : data.hash;
-
-        hash[value] = HASH_UNDEFINED;
-      }
-      else {
-        map.set(value, HASH_UNDEFINED);
-      }
+    function setCacheHas(value) {
+      return this.__data__.has(value);
     }
 
     // Add methods to `SetCache`.
-    SetCache.prototype.push = cachePush;
+    SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;
+    SetCache.prototype.has = setCacheHas;
 
     /*------------------------------------------------------------------------*/
 
@@ -39122,17 +39232,10 @@ return jQuery;
      *
      * @private
      * @constructor
-     * @param {Array} [values] The values to cache.
+     * @param {Array} [entries] The key-value pairs to cache.
      */
-    function Stack(values) {
-      var index = -1,
-          length = values ? values.length : 0;
-
-      this.clear();
-      while (++index < length) {
-        var entry = values[index];
-        this.set(entry[0], entry[1]);
-      }
+    function Stack(entries) {
+      this.__data__ = new ListCache(entries);
     }
 
     /**
@@ -39143,7 +39246,7 @@ return jQuery;
      * @memberOf Stack
      */
     function stackClear() {
-      this.__data__ = { 'array': [], 'map': null };
+      this.__data__ = new ListCache;
     }
 
     /**
@@ -39156,10 +39259,7 @@ return jQuery;
      * @returns {boolean} Returns `true` if the entry was removed, else `false`.
      */
     function stackDelete(key) {
-      var data = this.__data__,
-          array = data.array;
-
-      return array ? assocDelete(array, key) : data.map['delete'](key);
+      return this.__data__['delete'](key);
     }
 
     /**
@@ -39172,10 +39272,7 @@ return jQuery;
      * @returns {*} Returns the entry value.
      */
     function stackGet(key) {
-      var data = this.__data__,
-          array = data.array;
-
-      return array ? assocGet(array, key) : data.map.get(key);
+      return this.__data__.get(key);
     }
 
     /**
@@ -39188,10 +39285,7 @@ return jQuery;
      * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
      */
     function stackHas(key) {
-      var data = this.__data__,
-          array = data.array;
-
-      return array ? assocHas(array, key) : data.map.has(key);
+      return this.__data__.has(key);
     }
 
     /**
@@ -39205,21 +39299,11 @@ return jQuery;
      * @returns {Object} Returns the stack cache instance.
      */
     function stackSet(key, value) {
-      var data = this.__data__,
-          array = data.array;
-
-      if (array) {
-        if (array.length < (LARGE_ARRAY_SIZE - 1)) {
-          assocSet(array, key, value);
-        } else {
-          data.array = null;
-          data.map = new MapCache(array);
-        }
-      }
-      var map = data.map;
-      if (map) {
-        map.set(key, value);
+      var cache = this.__data__;
+      if (cache instanceof ListCache && cache.__data__.length == LARGE_ARRAY_SIZE) {
+        cache = this.__data__ = new MapCache(cache.__data__);
       }
+      cache.set(key, value);
       return this;
     }
 
@@ -39233,90 +39317,6 @@ return jQuery;
     /*------------------------------------------------------------------------*/
 
     /**
-     * Removes `key` and its value from the associative array.
-     *
-     * @private
-     * @param {Array} array The array to modify.
-     * @param {string} key The key of the value to remove.
-     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
-     */
-    function assocDelete(array, key) {
-      var index = assocIndexOf(array, key);
-      if (index < 0) {
-        return false;
-      }
-      var lastIndex = array.length - 1;
-      if (index == lastIndex) {
-        array.pop();
-      } else {
-        splice.call(array, index, 1);
-      }
-      return true;
-    }
-
-    /**
-     * Gets the associative array value for `key`.
-     *
-     * @private
-     * @param {Array} array The array to query.
-     * @param {string} key The key of the value to get.
-     * @returns {*} Returns the entry value.
-     */
-    function assocGet(array, key) {
-      var index = assocIndexOf(array, key);
-      return index < 0 ? undefined : array[index][1];
-    }
-
-    /**
-     * Checks if an associative array value for `key` exists.
-     *
-     * @private
-     * @param {Array} array The array to query.
-     * @param {string} key The key of the entry to check.
-     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
-     */
-    function assocHas(array, key) {
-      return assocIndexOf(array, key) > -1;
-    }
-
-    /**
-     * Gets the index at which the `key` is found in `array` of key-value pairs.
-     *
-     * @private
-     * @param {Array} array The array to search.
-     * @param {*} key The key to search for.
-     * @returns {number} Returns the index of the matched value, else `-1`.
-     */
-    function assocIndexOf(array, key) {
-      var length = array.length;
-      while (length--) {
-        if (eq(array[length][0], key)) {
-          return length;
-        }
-      }
-      return -1;
-    }
-
-    /**
-     * Sets the associative array `key` to `value`.
-     *
-     * @private
-     * @param {Array} array The array to modify.
-     * @param {string} key The key of the value to set.
-     * @param {*} value The value to set.
-     */
-    function assocSet(array, key, value) {
-      var index = assocIndexOf(array, key);
-      if (index < 0) {
-        array.push([key, value]);
-      } else {
-        array[index][1] = value;
-      }
-    }
-
-    /*------------------------------------------------------------------------*/
-
-    /**
      * Used by `_.defaults` to customize its `_.assignIn` use.
      *
      * @private
@@ -39369,6 +39369,24 @@ return jQuery;
     }
 
     /**
+     * Gets the index at which the `key` is found in `array` of key-value pairs.
+     *
+     * @private
+     * @param {Array} array The array to search.
+     * @param {*} key The key to search for.
+     * @returns {number} Returns the index of the matched value, else `-1`.
+     */
+    function assocIndexOf(array, key) {
+      var length = array.length;
+      while (length--) {
+        if (eq(array[length][0], key)) {
+          return length;
+        }
+      }
+      return -1;
+    }
+
+    /**
      * Aggregates elements of `collection` on `accumulator` with keys transformed
      * by `iteratee` and values set by `setter`.
      *
@@ -39405,7 +39423,7 @@ return jQuery;
      * @private
      * @param {Object} object The object to iterate over.
      * @param {string[]} paths The property paths of elements to pick.
-     * @returns {Array} Returns the new array of picked elements.
+     * @returns {Array} Returns the picked elements.
      */
     function baseAt(object, paths) {
       var index = -1,
@@ -39520,7 +39538,7 @@ return jQuery;
      *
      * @private
      * @param {Object} source The object of property predicates to conform to.
-     * @returns {Function} Returns the new function.
+     * @returns {Function} Returns the new spec function.
      */
     function baseConforms(source) {
       var props = keys(source),
@@ -39833,7 +39851,7 @@ return jQuery;
      * @private
      * @param {Object} object The object to inspect.
      * @param {Array} props The property names to filter.
-     * @returns {Array} Returns the new array of filtered property names.
+     * @returns {Array} Returns the function names.
      */
     function baseFunctions(object, props) {
       return arrayFilter(props, function(key) {
@@ -39874,9 +39892,7 @@ return jQuery;
      */
     function baseGetAllKeys(object, keysFunc, symbolsFunc) {
       var result = keysFunc(object);
-      return isArray(object)
-        ? result
-        : arrayPush(result, symbolsFunc(object));
+      return isArray(object) ? result : arrayPush(result, symbolsFunc(object));
     }
 
     /**
@@ -39896,7 +39912,7 @@ return jQuery;
      * The base implementation of `_.has` without support for deep paths.
      *
      * @private
-     * @param {Object} object The object to query.
+     * @param {Object} [object] The object to query.
      * @param {Array|string} key The key to check.
      * @returns {boolean} Returns `true` if `key` exists, else `false`.
      */
@@ -39904,20 +39920,21 @@ return jQuery;
       // Avoid a bug in IE 10-11 where objects with a [[Prototype]] of `null`,
       // that are composed entirely of index properties, return `false` for
       // `hasOwnProperty` checks of them.
-      return hasOwnProperty.call(object, key) ||
-        (typeof object == 'object' && key in object && getPrototype(object) === null);
+      return object != null &&
+        (hasOwnProperty.call(object, key) ||
+          (typeof object == 'object' && key in object && getPrototype(object) === null));
     }
 
     /**
      * The base implementation of `_.hasIn` without support for deep paths.
      *
      * @private
-     * @param {Object} object The object to query.
+     * @param {Object} [object] The object to query.
      * @param {Array|string} key The key to check.
      * @returns {boolean} Returns `true` if `key` exists, else `false`.
      */
     function baseHasIn(object, key) {
-      return key in Object(object);
+      return object != null && key in Object(object);
     }
 
     /**
@@ -40172,6 +40189,22 @@ return jQuery;
     }
 
     /**
+     * The base implementation of `_.isNative` without bad shim checks.
+     *
+     * @private
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `value` is a native function,
+     *  else `false`.
+     */
+    function baseIsNative(value) {
+      if (!isObject(value) || isMasked(value)) {
+        return false;
+      }
+      var pattern = (isFunction(value) || isHostObject(value)) ? reIsNative : reIsHostCtor;
+      return pattern.test(toSource(value));
+    }
+
+    /**
      * The base implementation of `_.iteratee`.
      *
      * @private
@@ -40268,7 +40301,7 @@ return jQuery;
      *
      * @private
      * @param {Object} source The object of property values to match.
-     * @returns {Function} Returns the new function.
+     * @returns {Function} Returns the new spec function.
      */
     function baseMatches(source) {
       var matchData = getMatchData(source);
@@ -40286,7 +40319,7 @@ return jQuery;
      * @private
      * @param {string} path The path of the property to get.
      * @param {*} srcValue The value to match.
-     * @returns {Function} Returns the new function.
+     * @returns {Function} Returns the new spec function.
      */
     function baseMatchesProperty(path, srcValue) {
       if (isKey(path) && isStrictComparable(srcValue)) {
@@ -40501,7 +40534,7 @@ return jQuery;
      *
      * @private
      * @param {string} key The key of the property to get.
-     * @returns {Function} Returns the new function.
+     * @returns {Function} Returns the new accessor function.
      */
     function baseProperty(key) {
       return function(object) {
@@ -40514,7 +40547,7 @@ return jQuery;
      *
      * @private
      * @param {Array|string} path The path of the property to get.
-     * @returns {Function} Returns the new function.
+     * @returns {Function} Returns the new accessor function.
      */
     function basePropertyDeep(path) {
       return function(object) {
@@ -40539,6 +40572,9 @@ return jQuery;
           length = values.length,
           seen = array;
 
+      if (array === values) {
+        values = copyArray(values);
+      }
       if (iteratee) {
         seen = arrayMap(array, baseUnary(iteratee));
       }
@@ -40615,7 +40651,7 @@ return jQuery;
      * @param {number} end The end of the range.
      * @param {number} step The value to increment or decrement by.
      * @param {boolean} [fromRight] Specify iterating from right to left.
-     * @returns {Array} Returns the new array of numbers.
+     * @returns {Array} Returns the range of numbers.
      */
     function baseRange(start, end, step, fromRight) {
       var index = -1,
@@ -41329,7 +41365,7 @@ return jQuery;
      * placeholders, and provided arguments into a single array of arguments.
      *
      * @private
-     * @param {Array|Object} args The provided arguments.
+     * @param {Array} args The provided arguments.
      * @param {Array} partials The arguments to prepend to those provided.
      * @param {Array} holders The `partials` placeholder indexes.
      * @params {boolean} [isCurried] Specify composing for a curried function.
@@ -41364,7 +41400,7 @@ return jQuery;
      * is tailored for `_.partialRight`.
      *
      * @private
-     * @param {Array|Object} args The provided arguments.
+     * @param {Array} args The provided arguments.
      * @param {Array} partials The arguments to append to those provided.
      * @param {Array} holders The `partials` placeholder indexes.
      * @params {boolean} [isCurried] Specify composing for a curried function.
@@ -41486,7 +41522,7 @@ return jQuery;
             customizer = length > 1 ? sources[length - 1] : undefined,
             guard = length > 2 ? sources[2] : undefined;
 
-        customizer = typeof customizer == 'function'
+        customizer = (assigner.length > 3 && typeof customizer == 'function')
           ? (length--, customizer)
           : undefined;
 
@@ -41585,7 +41621,7 @@ return jQuery;
      *
      * @private
      * @param {string} methodName The name of the `String` case method to use.
-     * @returns {Function} Returns the new function.
+     * @returns {Function} Returns the new case function.
      */
     function createCaseFirst(methodName) {
       return function(string) {
@@ -41670,7 +41706,7 @@ return jQuery;
         var length = arguments.length,
             args = Array(length),
             index = length,
-            placeholder = getPlaceholder(wrapper);
+            placeholder = getHolder(wrapper);
 
         while (index--) {
           args[index] = arguments[index];
@@ -41692,6 +41728,31 @@ return jQuery;
     }
 
     /**
+     * Creates a `_.find` or `_.findLast` function.
+     *
+     * @private
+     * @param {Function} findIndexFunc The function to find the collection index.
+     * @returns {Function} Returns the new find function.
+     */
+    function createFind(findIndexFunc) {
+      return function(collection, predicate, fromIndex) {
+        var iterable = Object(collection);
+        predicate = getIteratee(predicate, 3);
+        if (!isArrayLike(collection)) {
+          var props = keys(collection);
+        }
+        var index = findIndexFunc(props || collection, function(value, key) {
+          if (props) {
+            key = value;
+            value = iterable[key];
+          }
+          return predicate(value, key, iterable);
+        }, fromIndex);
+        return index > -1 ? collection[props ? props[index] : index] : undefined;
+      };
+    }
+
+    /**
      * Creates a `_.flow` or `_.flowRight` function.
      *
      * @private
@@ -41785,14 +41846,14 @@ return jQuery;
 
       function wrapper() {
         var length = arguments.length,
-            index = length,
-            args = Array(length);
+            args = Array(length),
+            index = length;
 
         while (index--) {
           args[index] = arguments[index];
         }
         if (isCurried) {
-          var placeholder = getPlaceholder(wrapper),
+          var placeholder = getHolder(wrapper),
               holdersCount = countHolders(args, placeholder);
         }
         if (partials) {
@@ -41881,7 +41942,7 @@ return jQuery;
      *
      * @private
      * @param {Function} arrayFunc The function to iterate over iteratees.
-     * @returns {Function} Returns the new invoker function.
+     * @returns {Function} Returns the new over function.
      */
     function createOver(arrayFunc) {
       return rest(function(iteratees) {
@@ -42054,7 +42115,7 @@ return jQuery;
       var func = Math[methodName];
       return function(number, precision) {
         number = toNumber(number);
-        precision = toInteger(precision);
+        precision = nativeMin(toInteger(precision), 292);
         if (precision) {
           // Shift with exponential notation to avoid floating-point issues.
           // See [MDN](https://mdn.io/round#Examples) for more details.
@@ -42080,6 +42141,26 @@ return jQuery;
     };
 
     /**
+     * Creates a `_.toPairs` or `_.toPairsIn` function.
+     *
+     * @private
+     * @param {Function} keysFunc The function to get the keys of a given object.
+     * @returns {Function} Returns the new pairs function.
+     */
+    function createToPairs(keysFunc) {
+      return function(object) {
+        var tag = getTag(object);
+        if (tag == mapTag) {
+          return mapToArray(object);
+        }
+        if (tag == setTag) {
+          return setToPairs(object);
+        }
+        return baseToPairs(object, keysFunc(object));
+      };
+    }
+
+    /**
      * Creates a function that either curries or invokes `func` with optional
      * `this` binding and partially applied arguments.
      *
@@ -42096,6 +42177,7 @@ return jQuery;
      *    64 - `_.partialRight`
      *   128 - `_.rearg`
      *   256 - `_.ary`
+     *   512 - `_.flip`
      * @param {*} [thisArg] The `this` binding of `func`.
      * @param {Array} [partials] The arguments to be partially applied.
      * @param {Array} [holders] The `partials` placeholder indexes.
@@ -42174,9 +42256,7 @@ return jQuery;
      * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
      */
     function equalArrays(array, other, equalFunc, customizer, bitmask, stack) {
-      var index = -1,
-          isPartial = bitmask & PARTIAL_COMPARE_FLAG,
-          isUnordered = bitmask & UNORDERED_COMPARE_FLAG,
+      var isPartial = bitmask & PARTIAL_COMPARE_FLAG,
           arrLength = array.length,
           othLength = other.length;
 
@@ -42188,7 +42268,10 @@ return jQuery;
       if (stacked) {
         return stacked == other;
       }
-      var result = true;
+      var index = -1,
+          result = true,
+          seen = (bitmask & UNORDERED_COMPARE_FLAG) ? new SetCache : undefined;
+
       stack.set(array, other);
 
       // Ignore non-index properties.
@@ -42209,10 +42292,12 @@ return jQuery;
           break;
         }
         // Recursively compare arrays (susceptible to call stack limits).
-        if (isUnordered) {
-          if (!arraySome(other, function(othValue) {
-                return arrValue === othValue ||
-                  equalFunc(arrValue, othValue, customizer, bitmask, stack);
+        if (seen) {
+          if (!arraySome(other, function(othValue, othIndex) {
+                if (!seen.has(othIndex) &&
+                    (arrValue === othValue || equalFunc(arrValue, othValue, customizer, bitmask, stack))) {
+                  return seen.add(othIndex);
+                }
               })) {
             result = false;
             break;
@@ -42447,6 +42532,18 @@ return jQuery;
     }
 
     /**
+     * Gets the argument placeholder value for `func`.
+     *
+     * @private
+     * @param {Function} func The function to inspect.
+     * @returns {*} Returns the placeholder value.
+     */
+    function getHolder(func) {
+      var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func;
+      return object.placeholder;
+    }
+
+    /**
      * Gets the appropriate "iteratee" function. If `_.iteratee` is customized,
      * this function returns the custom method, otherwise it returns `baseIteratee`.
      * If arguments are provided, the chosen function is invoked with them and
@@ -42477,6 +42574,21 @@ return jQuery;
     var getLength = baseProperty('length');
 
     /**
+     * Gets the data for `map`.
+     *
+     * @private
+     * @param {Object} map The map to query.
+     * @param {string} key The reference key.
+     * @returns {*} Returns the map data.
+     */
+    function getMapData(map, key) {
+      var data = map.__data__;
+      return isKeyable(key)
+        ? data[typeof key == 'string' ? 'string' : 'hash']
+        : data.map;
+    }
+
+    /**
      * Gets the property names, values, and compare flags of `object`.
      *
      * @private
@@ -42484,11 +42596,14 @@ return jQuery;
      * @returns {Array} Returns the match data of `object`.
      */
     function getMatchData(object) {
-      var result = toPairs(object),
+      var result = keys(object),
           length = result.length;
 
       while (length--) {
-        result[length][2] = isStrictComparable(result[length][1]);
+        var key = result[length],
+            value = object[key];
+
+        result[length] = [key, value, isStrictComparable(value)];
       }
       return result;
     }
@@ -42502,20 +42617,8 @@ return jQuery;
      * @returns {*} Returns the function if it's native, else `undefined`.
      */
     function getNative(object, key) {
-      var value = object[key];
-      return isNative(value) ? value : undefined;
-    }
-
-    /**
-     * Gets the argument placeholder value for `func`.
-     *
-     * @private
-     * @param {Function} func The function to inspect.
-     * @returns {*} Returns the placeholder value.
-     */
-    function getPlaceholder(func) {
-      var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func;
-      return object.placeholder;
+      var value = getValue(object, key);
+      return baseIsNative(value) ? value : undefined;
     }
 
     /**
@@ -42544,9 +42647,7 @@ return jQuery;
 
     // Fallback for IE < 11.
     if (!getOwnPropertySymbols) {
-      getSymbols = function() {
-        return [];
-      };
+      getSymbols = stubArray;
     }
 
     /**
@@ -42767,7 +42868,7 @@ return jQuery;
      * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.
      */
     function isFlattenable(value) {
-      return isArrayLikeObject(value) && (isArray(value) || isArguments(value));
+      return isArray(value) || isArguments(value);
     }
 
     /**
@@ -42879,6 +42980,26 @@ return jQuery;
     }
 
     /**
+     * Checks if `func` has its source masked.
+     *
+     * @private
+     * @param {Function} func The function to check.
+     * @returns {boolean} Returns `true` if `func` is masked, else `false`.
+     */
+    function isMasked(func) {
+      return !!maskSrcKey && (maskSrcKey in func);
+    }
+
+    /**
+     * Checks if `func` is capable of being masked.
+     *
+     * @private
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if `func` is maskable, else `false`.
+     */
+    var isMaskable = coreJsData ? isFunction : stubFalse;
+
+    /**
      * Checks if `value` is likely a prototype object.
      *
      * @private
@@ -42911,7 +43032,7 @@ return jQuery;
      * @private
      * @param {string} key The key of the property to get.
      * @param {*} srcValue The value to match.
-     * @returns {Function} Returns the new function.
+     * @returns {Function} Returns the new spec function.
      */
     function matchesStrictComparable(key, srcValue) {
       return function(object) {
@@ -43163,7 +43284,7 @@ return jQuery;
      * @param {Array} array The array to process.
      * @param {number} [size=1] The length of each chunk
      * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
-     * @returns {Array} Returns the new array containing chunks.
+     * @returns {Array} Returns the new array of chunks.
      * @example
      *
      * _.chunk(['a', 'b', 'c', 'd'], 2);
@@ -43246,16 +43367,16 @@ return jQuery;
      */
     function concat() {
       var length = arguments.length,
-          array = castArray(arguments[0]);
+          args = Array(length ? length - 1 : 0),
+          array = arguments[0],
+          index = length;
 
-      if (length < 2) {
-        return length ? copyArray(array) : [];
-      }
-      var args = Array(length - 1);
-      while (length--) {
-        args[length - 1] = arguments[length];
+      while (index--) {
+        args[index - 1] = arguments[index];
       }
-      return arrayConcat(array, baseFlatten(args, 1));
+      return length
+        ? arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1))
+        : [];
     }
 
     /**
@@ -43274,8 +43395,8 @@ return jQuery;
      * @see _.without, _.xor
      * @example
      *
-     * _.difference([3, 2, 1], [4, 2]);
-     * // => [3, 1]
+     * _.difference([2, 1], [2, 3]);
+     * // => [1]
      */
     var difference = rest(function(array, values) {
       return isArrayLikeObject(array)
@@ -43300,8 +43421,8 @@ return jQuery;
      * @returns {Array} Returns the new array of filtered values.
      * @example
      *
-     * _.differenceBy([3.1, 2.2, 1.3], [4.4, 2.5], Math.floor);
-     * // => [3.1, 1.3]
+     * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);
+     * // => [1.2]
      *
      * // The `_.property` iteratee shorthand.
      * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');
@@ -43553,6 +43674,7 @@ return jQuery;
      * @param {Array} array The array to search.
      * @param {Array|Function|Object|string} [predicate=_.identity]
      *  The function invoked per iteration.
+     * @param {number} [fromIndex=0] The index to search from.
      * @returns {number} Returns the index of the found element, else `-1`.
      * @example
      *
@@ -43577,10 +43699,16 @@ return jQuery;
      * _.findIndex(users, 'active');
      * // => 2
      */
-    function findIndex(array, predicate) {
-      return (array && array.length)
-        ? baseFindIndex(array, getIteratee(predicate, 3))
-        : -1;
+    function findIndex(array, predicate, fromIndex) {
+      var length = array ? array.length : 0;
+      if (!length) {
+        return -1;
+      }
+      var index = fromIndex == null ? 0 : toInteger(fromIndex);
+      if (index < 0) {
+        index = nativeMax(length + index, 0);
+      }
+      return baseFindIndex(array, getIteratee(predicate, 3), index);
     }
 
     /**
@@ -43594,6 +43722,7 @@ return jQuery;
      * @param {Array} array The array to search.
      * @param {Array|Function|Object|string} [predicate=_.identity]
      *  The function invoked per iteration.
+     * @param {number} [fromIndex=array.length-1] The index to search from.
      * @returns {number} Returns the index of the found element, else `-1`.
      * @example
      *
@@ -43618,10 +43747,19 @@ return jQuery;
      * _.findLastIndex(users, 'active');
      * // => 0
      */
-    function findLastIndex(array, predicate) {
-      return (array && array.length)
-        ? baseFindIndex(array, getIteratee(predicate, 3), true)
-        : -1;
+    function findLastIndex(array, predicate, fromIndex) {
+      var length = array ? array.length : 0;
+      if (!length) {
+        return -1;
+      }
+      var index = length - 1;
+      if (fromIndex !== undefined) {
+        index = toInteger(fromIndex);
+        index = fromIndex < 0
+          ? nativeMax(length + index, 0)
+          : nativeMin(index, length - 1);
+      }
+      return baseFindIndex(array, getIteratee(predicate, 3), index, true);
     }
 
     /**
@@ -43768,11 +43906,11 @@ return jQuery;
       if (!length) {
         return -1;
       }
-      fromIndex = toInteger(fromIndex);
-      if (fromIndex < 0) {
-        fromIndex = nativeMax(length + fromIndex, 0);
+      var index = fromIndex == null ? 0 : toInteger(fromIndex);
+      if (index < 0) {
+        index = nativeMax(length + index, 0);
       }
-      return baseIndexOf(array, value, fromIndex);
+      return baseIndexOf(array, value, index);
     }
 
     /**
@@ -43807,7 +43945,7 @@ return jQuery;
      * @returns {Array} Returns the new array of intersecting values.
      * @example
      *
-     * _.intersection([2, 1], [4, 2], [1, 2]);
+     * _.intersection([2, 1], [2, 3]);
      * // => [2]
      */
     var intersection = rest(function(arrays) {
@@ -43833,7 +43971,7 @@ return jQuery;
      * @returns {Array} Returns the new array of intersecting values.
      * @example
      *
-     * _.intersectionBy([2.1, 1.2], [4.3, 2.4], Math.floor);
+     * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor);
      * // => [2.1]
      *
      * // The `_.property` iteratee shorthand.
@@ -43963,7 +44101,7 @@ return jQuery;
         ) + 1;
       }
       if (value !== value) {
-        return indexOfNaN(array, index, true);
+        return indexOfNaN(array, index - 1, true);
       }
       while (index--) {
         if (array[index] === value) {
@@ -43974,8 +44112,8 @@ return jQuery;
     }
 
     /**
-     * Gets the nth element of `array`. If `n` is negative, the nth element
-     * from the end is returned.
+     * Gets the element at index `n` of `array`. If `n` is negative, the nth
+     * element from the end is returned.
      *
      * @static
      * @memberOf _
@@ -44015,11 +44153,11 @@ return jQuery;
      * @returns {Array} Returns `array`.
      * @example
      *
-     * var array = [1, 2, 3, 1, 2, 3];
+     * var array = ['a', 'b', 'c', 'a', 'b', 'c'];
      *
-     * _.pull(array, 2, 3);
+     * _.pull(array, 'a', 'c');
      * console.log(array);
-     * // => [1, 1]
+     * // => ['b', 'b']
      */
     var pull = rest(pullAll);
 
@@ -44037,11 +44175,11 @@ return jQuery;
      * @returns {Array} Returns `array`.
      * @example
      *
-     * var array = [1, 2, 3, 1, 2, 3];
+     * var array = ['a', 'b', 'c', 'a', 'b', 'c'];
      *
-     * _.pullAll(array, [2, 3]);
+     * _.pullAll(array, ['a', 'c']);
      * console.log(array);
-     * // => [1, 1]
+     * // => ['b', 'b']
      */
     function pullAll(array, values) {
       return (array && array.length && values && values.length)
@@ -44123,14 +44261,14 @@ return jQuery;
      * @returns {Array} Returns the new array of removed elements.
      * @example
      *
-     * var array = [5, 10, 15, 20];
-     * var evens = _.pullAt(array, 1, 3);
+     * var array = ['a', 'b', 'c', 'd'];
+     * var pulled = _.pullAt(array, [1, 3]);
      *
      * console.log(array);
-     * // => [5, 15]
+     * // => ['a', 'c']
      *
-     * console.log(evens);
-     * // => [10, 20]
+     * console.log(pulled);
+     * // => ['b', 'd']
      */
     var pullAt = rest(function(array, indexes) {
       indexes = baseFlatten(indexes, 1);
@@ -44270,9 +44408,6 @@ return jQuery;
      *
      * _.sortedIndex([30, 50], 40);
      * // => 1
-     *
-     * _.sortedIndex([4, 5], 4);
-     * // => 0
      */
     function sortedIndex(array, value) {
       return baseSortedIndex(array, value);
@@ -44295,13 +44430,13 @@ return jQuery;
      *  into `array`.
      * @example
      *
-     * var dict = { 'thirty': 30, 'forty': 40, 'fifty': 50 };
+     * var objects = [{ 'x': 4 }, { 'x': 5 }];
      *
-     * _.sortedIndexBy(['thirty', 'fifty'], 'forty', _.propertyOf(dict));
-     * // => 1
+     * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
+     * // => 0
      *
      * // The `_.property` iteratee shorthand.
-     * _.sortedIndexBy([{ 'x': 4 }, { 'x': 5 }], { 'x': 4 }, 'x');
+     * _.sortedIndexBy(objects, { 'x': 4 }, 'x');
      * // => 0
      */
     function sortedIndexBy(array, value, iteratee) {
@@ -44321,8 +44456,8 @@ return jQuery;
      * @returns {number} Returns the index of the matched value, else `-1`.
      * @example
      *
-     * _.sortedIndexOf([1, 1, 2, 2], 2);
-     * // => 2
+     * _.sortedIndexOf([4, 5, 5, 5, 6], 5);
+     * // => 1
      */
     function sortedIndexOf(array, value) {
       var length = array ? array.length : 0;
@@ -44350,8 +44485,8 @@ return jQuery;
      *  into `array`.
      * @example
      *
-     * _.sortedLastIndex([4, 5], 4);
-     * // => 1
+     * _.sortedLastIndex([4, 5, 5, 5, 6], 5);
+     * // => 4
      */
     function sortedLastIndex(array, value) {
       return baseSortedIndex(array, value, true);
@@ -44374,8 +44509,13 @@ return jQuery;
      *  into `array`.
      * @example
      *
+     * var objects = [{ 'x': 4 }, { 'x': 5 }];
+     *
+     * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
+     * // => 1
+     *
      * // The `_.property` iteratee shorthand.
-     * _.sortedLastIndexBy([{ 'x': 4 }, { 'x': 5 }], { 'x': 4 }, 'x');
+     * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');
      * // => 1
      */
     function sortedLastIndexBy(array, value, iteratee) {
@@ -44395,7 +44535,7 @@ return jQuery;
      * @returns {number} Returns the index of the matched value, else `-1`.
      * @example
      *
-     * _.sortedLastIndexOf([1, 1, 2, 2], 2);
+     * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);
      * // => 3
      */
     function sortedLastIndexOf(array, value) {
@@ -44635,8 +44775,8 @@ return jQuery;
      * @returns {Array} Returns the new array of combined values.
      * @example
      *
-     * _.union([2, 1], [4, 2], [1, 2]);
-     * // => [2, 1, 4]
+     * _.union([2], [1, 2]);
+     * // => [2, 1]
      */
     var union = rest(function(arrays) {
       return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true));
@@ -44658,8 +44798,8 @@ return jQuery;
      * @returns {Array} Returns the new array of combined values.
      * @example
      *
-     * _.unionBy([2.1, 1.2], [4.3, 2.4], Math.floor);
-     * // => [2.1, 1.2, 4.3]
+     * _.unionBy([2.1], [1.2, 2.3], Math.floor);
+     * // => [2.1, 1.2]
      *
      * // The `_.property` iteratee shorthand.
      * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
@@ -44766,7 +44906,7 @@ return jQuery;
      * @returns {Array} Returns the new duplicate free array.
      * @example
      *
-     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 },  { 'x': 1, 'y': 2 }];
+     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];
      *
      * _.uniqWith(objects, _.isEqual);
      * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]
@@ -44855,13 +44995,13 @@ return jQuery;
      * @memberOf _
      * @since 0.1.0
      * @category Array
-     * @param {Array} array The array to filter.
+     * @param {Array} array The array to inspect.
      * @param {...*} [values] The values to exclude.
      * @returns {Array} Returns the new array of filtered values.
      * @see _.difference, _.xor
      * @example
      *
-     * _.without([1, 2, 1, 3], 1, 2);
+     * _.without([2, 1, 2, 3], 1, 2);
      * // => [3]
      */
     var without = rest(function(array, values) {
@@ -44881,12 +45021,12 @@ return jQuery;
      * @since 2.4.0
      * @category Array
      * @param {...Array} [arrays] The arrays to inspect.
-     * @returns {Array} Returns the new array of values.
+     * @returns {Array} Returns the new array of filtered values.
      * @see _.difference, _.without
      * @example
      *
-     * _.xor([2, 1], [4, 2]);
-     * // => [1, 4]
+     * _.xor([2, 1], [2, 3]);
+     * // => [1, 3]
      */
     var xor = rest(function(arrays) {
       return baseXor(arrayFilter(arrays, isArrayLikeObject));
@@ -44905,11 +45045,11 @@ return jQuery;
      * @param {...Array} [arrays] The arrays to inspect.
      * @param {Array|Function|Object|string} [iteratee=_.identity]
      *  The iteratee invoked per element.
-     * @returns {Array} Returns the new array of values.
+     * @returns {Array} Returns the new array of filtered values.
      * @example
      *
-     * _.xorBy([2.1, 1.2], [4.3, 2.4], Math.floor);
-     * // => [1.2, 4.3]
+     * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);
+     * // => [1.2, 3.4]
      *
      * // The `_.property` iteratee shorthand.
      * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
@@ -44934,7 +45074,7 @@ return jQuery;
      * @category Array
      * @param {...Array} [arrays] The arrays to inspect.
      * @param {Function} [comparator] The comparator invoked per element.
-     * @returns {Array} Returns the new array of values.
+     * @returns {Array} Returns the new array of filtered values.
      * @example
      *
      * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
@@ -45142,9 +45282,6 @@ return jQuery;
      *
      * _(object).at(['a[0].b.c', 'a[1]']).value();
      * // => [3, 4]
-     *
-     * _(['a', 'b', 'c']).at(0, 2).value();
-     * // => ['a', 'c']
      */
     var wrapperAt = rest(function(paths) {
       paths = baseFlatten(paths, 1);
@@ -45407,6 +45544,7 @@ return jQuery;
      * _.countBy([6.1, 4.2, 6.3], Math.floor);
      * // => { '4': 1, '6': 2 }
      *
+     * // The `_.property` iteratee shorthand.
      * _.countBy(['one', 'two', 'three'], 'length');
      * // => { '3': 2, '5': 1 }
      */
@@ -45512,6 +45650,7 @@ return jQuery;
      * @param {Array|Object} collection The collection to search.
      * @param {Array|Function|Object|string} [predicate=_.identity]
      *  The function invoked per iteration.
+     * @param {number} [fromIndex=0] The index to search from.
      * @returns {*} Returns the matched element, else `undefined`.
      * @example
      *
@@ -45536,14 +45675,7 @@ return jQuery;
      * _.find(users, 'active');
      * // => object for 'barney'
      */
-    function find(collection, predicate) {
-      predicate = getIteratee(predicate, 3);
-      if (isArray(collection)) {
-        var index = baseFindIndex(collection, predicate);
-        return index > -1 ? collection[index] : undefined;
-      }
-      return baseFind(collection, predicate, baseEach);
-    }
+    var find = createFind(findIndex);
 
     /**
      * This method is like `_.find` except that it iterates over elements of
@@ -45556,6 +45688,7 @@ return jQuery;
      * @param {Array|Object} collection The collection to search.
      * @param {Array|Function|Object|string} [predicate=_.identity]
      *  The function invoked per iteration.
+     * @param {number} [fromIndex=collection.length-1] The index to search from.
      * @returns {*} Returns the matched element, else `undefined`.
      * @example
      *
@@ -45564,14 +45697,7 @@ return jQuery;
      * });
      * // => 3
      */
-    function findLast(collection, predicate) {
-      predicate = getIteratee(predicate, 3);
-      if (isArray(collection)) {
-        var index = baseFindIndex(collection, predicate, true);
-        return index > -1 ? collection[index] : undefined;
-      }
-      return baseFind(collection, predicate, baseEachRight);
-    }
+    var findLast = createFind(findLastIndex);
 
     /**
      * Creates a flattened array of values by running each element in `collection`
@@ -45682,9 +45808,8 @@ return jQuery;
      * // => Logs 'a' then 'b' (iteration order is not guaranteed).
      */
     function forEach(collection, iteratee) {
-      return (typeof iteratee == 'function' && isArray(collection))
-        ? arrayEach(collection, iteratee)
-        : baseEach(collection, getIteratee(iteratee));
+      var func = isArray(collection) ? arrayEach : baseEach;
+      return func(collection, getIteratee(iteratee, 3));
     }
 
     /**
@@ -45708,9 +45833,8 @@ return jQuery;
      * // => Logs `2` then `1`.
      */
     function forEachRight(collection, iteratee) {
-      return (typeof iteratee == 'function' && isArray(collection))
-        ? arrayEachRight(collection, iteratee)
-        : baseEachRight(collection, getIteratee(iteratee));
+      var func = isArray(collection) ? arrayEachRight : baseEachRight;
+      return func(collection, getIteratee(iteratee, 3));
     }
 
     /**
@@ -46330,7 +46454,6 @@ return jQuery;
      * @static
      * @memberOf _
      * @since 2.4.0
-     * @type {Function}
      * @category Date
      * @returns {number} Returns the timestamp.
      * @example
@@ -46338,9 +46461,11 @@ return jQuery;
      * _.defer(function(stamp) {
      *   console.log(_.now() - stamp);
      * }, _.now());
-     * // => Logs the number of milliseconds it took for the deferred function to be invoked.
+     * // => Logs the number of milliseconds it took for the deferred invocation.
      */
-    var now = Date.now;
+    function now() {
+      return Date.now();
+    }
 
     /*------------------------------------------------------------------------*/
 
@@ -46391,7 +46516,7 @@ return jQuery;
      * @param {Function} func The function to cap arguments for.
      * @param {number} [n=func.length] The arity cap.
      * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
-     * @returns {Function} Returns the new function.
+     * @returns {Function} Returns the new capped function.
      * @example
      *
      * _.map(['6', '8', '10'], _.ary(parseInt, 1));
@@ -46444,7 +46569,7 @@ return jQuery;
      * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,
      * may be used as a placeholder for partially applied arguments.
      *
-     * **Note:** Unlike native `Function#bind` this method doesn't set the "length"
+     * **Note:** Unlike native `Function#bind`, this method doesn't set the "length"
      * property of bound functions.
      *
      * @static
@@ -46475,7 +46600,7 @@ return jQuery;
     var bind = rest(function(func, thisArg, partials) {
       var bitmask = BIND_FLAG;
       if (partials.length) {
-        var holders = replaceHolders(partials, getPlaceholder(bind));
+        var holders = replaceHolders(partials, getHolder(bind));
         bitmask |= PARTIAL_FLAG;
       }
       return createWrapper(func, bitmask, thisArg, partials, holders);
@@ -46529,7 +46654,7 @@ return jQuery;
     var bindKey = rest(function(object, key, partials) {
       var bitmask = BIND_FLAG | BIND_KEY_FLAG;
       if (partials.length) {
-        var holders = replaceHolders(partials, getPlaceholder(bindKey));
+        var holders = replaceHolders(partials, getHolder(bindKey));
         bitmask |= PARTIAL_FLAG;
       }
       return createWrapper(key, bitmask, object, partials, holders);
@@ -46684,7 +46809,7 @@ return jQuery;
           maxWait,
           result,
           timerId,
-          lastCallTime = 0,
+          lastCallTime,
           lastInvokeTime = 0,
           leading = false,
           maxing = false,
@@ -46735,7 +46860,7 @@ return jQuery;
         // Either this is the first call, activity has stopped and we're at the
         // trailing edge, the system time has gone backwards and we're treating
         // it as the trailing edge, or we've hit the `maxWait` limit.
-        return (!lastCallTime || (timeSinceLastCall >= wait) ||
+        return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||
           (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));
       }
 
@@ -46749,7 +46874,6 @@ return jQuery;
       }
 
       function trailingEdge(time) {
-        clearTimeout(timerId);
         timerId = undefined;
 
         // Only invoke if we have `lastArgs` which means `func` has been
@@ -46762,11 +46886,8 @@ return jQuery;
       }
 
       function cancel() {
-        if (timerId !== undefined) {
-          clearTimeout(timerId);
-        }
-        lastCallTime = lastInvokeTime = 0;
-        lastArgs = lastThis = timerId = undefined;
+        lastInvokeTime = 0;
+        lastArgs = lastCallTime = lastThis = timerId = undefined;
       }
 
       function flush() {
@@ -46787,7 +46908,6 @@ return jQuery;
           }
           if (maxing) {
             // Handle invocations in a tight loop.
-            clearTimeout(timerId);
             timerId = setTimeout(timerExpired, wait);
             return invokeFunc(lastCallTime);
           }
@@ -46855,7 +46975,7 @@ return jQuery;
      * @since 4.0.0
      * @category Function
      * @param {Function} func The function to flip arguments for.
-     * @returns {Function} Returns the new function.
+     * @returns {Function} Returns the new flipped function.
      * @example
      *
      * var flipped = _.flip(function() {
@@ -46888,7 +47008,7 @@ return jQuery;
      * @category Function
      * @param {Function} func The function to have its output memoized.
      * @param {Function} [resolver] The function to resolve the cache key.
-     * @returns {Function} Returns the new memoizing function.
+     * @returns {Function} Returns the new memoized function.
      * @example
      *
      * var object = { 'a': 1, 'b': 2 };
@@ -46946,7 +47066,7 @@ return jQuery;
      * @since 3.0.0
      * @category Function
      * @param {Function} predicate The predicate to negate.
-     * @returns {Function} Returns the new function.
+     * @returns {Function} Returns the new negated function.
      * @example
      *
      * function isEven(n) {
@@ -47011,7 +47131,7 @@ return jQuery;
      *
      * var func = _.overArgs(function(x, y) {
      *   return [x, y];
-     * }, square, doubled);
+     * }, [square, doubled]);
      *
      * func(9, 3);
      * // => [81, 6]
@@ -47070,7 +47190,7 @@ return jQuery;
      * // => 'hi fred'
      */
     var partial = rest(function(func, partials) {
-      var holders = replaceHolders(partials, getPlaceholder(partial));
+      var holders = replaceHolders(partials, getHolder(partial));
       return createWrapper(func, PARTIAL_FLAG, undefined, partials, holders);
     });
 
@@ -47107,7 +47227,7 @@ return jQuery;
      * // => 'hello fred'
      */
     var partialRight = rest(function(func, partials) {
-      var holders = replaceHolders(partials, getPlaceholder(partialRight));
+      var holders = replaceHolders(partials, getHolder(partialRight));
       return createWrapper(func, PARTIAL_RIGHT_FLAG, undefined, partials, holders);
     });
 
@@ -47128,7 +47248,7 @@ return jQuery;
      *
      * var rearged = _.rearg(function(a, b, c) {
      *   return [a, b, c];
-     * }, 2, 0, 1);
+     * }, [2, 0, 1]);
      *
      * rearged('b', 'c', 'a')
      * // => ['a', 'b', 'c']
@@ -47309,7 +47429,7 @@ return jQuery;
      * @since 4.0.0
      * @category Function
      * @param {Function} func The function to cap arguments for.
-     * @returns {Function} Returns the new function.
+     * @returns {Function} Returns the new capped function.
      * @example
      *
      * _.map(['6', '8', '10'], _.unary(parseInt));
@@ -47767,7 +47887,7 @@ return jQuery;
      * _.isBuffer(new Uint8Array(2));
      * // => false
      */
-    var isBuffer = !Buffer ? constant(false) : function(value) {
+    var isBuffer = !Buffer ? stubFalse : function(value) {
       return value instanceof Buffer;
     };
 
@@ -47985,14 +48105,14 @@ return jQuery;
      * _.isFinite(3);
      * // => true
      *
-     * _.isFinite(Number.MAX_VALUE);
-     * // => true
-     *
-     * _.isFinite(3.14);
+     * _.isFinite(Number.MIN_VALUE);
      * // => true
      *
      * _.isFinite(Infinity);
      * // => false
+     *
+     * _.isFinite('3');
+     * // => false
      */
     function isFinite(value) {
       return typeof value == 'number' && nativeIsFinite(value);
@@ -48267,7 +48387,15 @@ return jQuery;
     }
 
     /**
-     * Checks if `value` is a native function.
+     * Checks if `value` is a pristine native function.
+     *
+     * **Note:** This method can't reliably detect native functions in the
+     * presence of the `core-js` package because `core-js` circumvents this kind
+     * of detection. Despite multiple requests, the `core-js` maintainer has made
+     * it clear: any attempt to fix the detection will be obstructed. As a result,
+     * we're left with little choice but to throw an error. Unfortunately, this
+     * also affects packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),
+     * which rely on `core-js`.
      *
      * @static
      * @memberOf _
@@ -48285,11 +48413,10 @@ return jQuery;
      * // => false
      */
     function isNative(value) {
-      if (!isObject(value)) {
-        return false;
+      if (isMaskable(value)) {
+        throw new Error('This method is not supported with `core-js`. Try https://github.com/es-shims.');
       }
-      var pattern = (isFunction(value) || isHostObject(value)) ? reIsNative : reIsHostCtor;
-      return pattern.test(toSource(value));
+      return baseIsNative(value);
     }
 
     /**
@@ -48714,9 +48841,44 @@ return jQuery;
     }
 
     /**
+     * Converts `value` to a finite number.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.12.0
+     * @category Lang
+     * @param {*} value The value to convert.
+     * @returns {number} Returns the converted number.
+     * @example
+     *
+     * _.toFinite(3.2);
+     * // => 3.2
+     *
+     * _.toFinite(Number.MIN_VALUE);
+     * // => 5e-324
+     *
+     * _.toFinite(Infinity);
+     * // => 1.7976931348623157e+308
+     *
+     * _.toFinite('3.2');
+     * // => 3.2
+     */
+    function toFinite(value) {
+      if (!value) {
+        return value === 0 ? value : 0;
+      }
+      value = toNumber(value);
+      if (value === INFINITY || value === -INFINITY) {
+        var sign = (value < 0 ? -1 : 1);
+        return sign * MAX_INTEGER;
+      }
+      return value === value ? value : 0;
+    }
+
+    /**
      * Converts `value` to an integer.
      *
-     * **Note:** This function is loosely based on
+     * **Note:** This method is loosely based on
      * [`ToInteger`](http://www.ecma-international.org/ecma-262/6.0/#sec-tointeger).
      *
      * @static
@@ -48727,7 +48889,7 @@ return jQuery;
      * @returns {number} Returns the converted integer.
      * @example
      *
-     * _.toInteger(3);
+     * _.toInteger(3.2);
      * // => 3
      *
      * _.toInteger(Number.MIN_VALUE);
@@ -48736,20 +48898,14 @@ return jQuery;
      * _.toInteger(Infinity);
      * // => 1.7976931348623157e+308
      *
-     * _.toInteger('3');
+     * _.toInteger('3.2');
      * // => 3
      */
     function toInteger(value) {
-      if (!value) {
-        return value === 0 ? value : 0;
-      }
-      value = toNumber(value);
-      if (value === INFINITY || value === -INFINITY) {
-        var sign = (value < 0 ? -1 : 1);
-        return sign * MAX_INTEGER;
-      }
-      var remainder = value % 1;
-      return value === value ? (remainder ? value - remainder : value) : 0;
+      var result = toFinite(value),
+          remainder = result % 1;
+
+      return result === result ? (remainder ? result - remainder : result) : 0;
     }
 
     /**
@@ -48767,7 +48923,7 @@ return jQuery;
      * @returns {number} Returns the converted integer.
      * @example
      *
-     * _.toLength(3);
+     * _.toLength(3.2);
      * // => 3
      *
      * _.toLength(Number.MIN_VALUE);
@@ -48776,7 +48932,7 @@ return jQuery;
      * _.toLength(Infinity);
      * // => 4294967295
      *
-     * _.toLength('3');
+     * _.toLength('3.2');
      * // => 3
      */
     function toLength(value) {
@@ -48794,8 +48950,8 @@ return jQuery;
      * @returns {number} Returns the number.
      * @example
      *
-     * _.toNumber(3);
-     * // => 3
+     * _.toNumber(3.2);
+     * // => 3.2
      *
      * _.toNumber(Number.MIN_VALUE);
      * // => 5e-324
@@ -48803,8 +48959,8 @@ return jQuery;
      * _.toNumber(Infinity);
      * // => Infinity
      *
-     * _.toNumber('3');
-     * // => 3
+     * _.toNumber('3.2');
+     * // => 3.2
      */
     function toNumber(value) {
       if (typeof value == 'number') {
@@ -48867,7 +49023,7 @@ return jQuery;
      * @returns {number} Returns the converted integer.
      * @example
      *
-     * _.toSafeInteger(3);
+     * _.toSafeInteger(3.2);
      * // => 3
      *
      * _.toSafeInteger(Number.MIN_VALUE);
@@ -48876,7 +49032,7 @@ return jQuery;
      * _.toSafeInteger(Infinity);
      * // => 9007199254740991
      *
-     * _.toSafeInteger('3');
+     * _.toSafeInteger('3.2');
      * // => 3
      */
     function toSafeInteger(value) {
@@ -49069,16 +49225,13 @@ return jQuery;
      * @category Object
      * @param {Object} object The object to iterate over.
      * @param {...(string|string[])} [paths] The property paths of elements to pick.
-     * @returns {Array} Returns the new array of picked elements.
+     * @returns {Array} Returns the picked values.
      * @example
      *
      * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };
      *
      * _.at(object, ['a[0].b.c', 'a[1]']);
      * // => [3, 4]
-     *
-     * _.at(['a', 'b', 'c'], 0, 2);
-     * // => ['a', 'c']
      */
     var at = rest(function(object, paths) {
       return baseAt(object, baseFlatten(paths, 1));
@@ -49211,7 +49364,7 @@ return jQuery;
      * // => 'barney'
      */
     function findKey(object, predicate) {
-      return baseFind(object, getIteratee(predicate, 3), baseForOwn, true);
+      return baseFindKey(object, getIteratee(predicate, 3), baseForOwn);
     }
 
     /**
@@ -49251,7 +49404,7 @@ return jQuery;
      * // => 'pebbles'
      */
     function findLastKey(object, predicate) {
-      return baseFind(object, getIteratee(predicate, 3), baseForOwnRight, true);
+      return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight);
     }
 
     /**
@@ -49285,7 +49438,7 @@ return jQuery;
     function forIn(object, iteratee) {
       return object == null
         ? object
-        : baseFor(object, getIteratee(iteratee), keysIn);
+        : baseFor(object, getIteratee(iteratee, 3), keysIn);
     }
 
     /**
@@ -49317,7 +49470,7 @@ return jQuery;
     function forInRight(object, iteratee) {
       return object == null
         ? object
-        : baseForRight(object, getIteratee(iteratee), keysIn);
+        : baseForRight(object, getIteratee(iteratee, 3), keysIn);
     }
 
     /**
@@ -49349,7 +49502,7 @@ return jQuery;
      * // => Logs 'a' then 'b' (iteration order is not guaranteed).
      */
     function forOwn(object, iteratee) {
-      return object && baseForOwn(object, getIteratee(iteratee));
+      return object && baseForOwn(object, getIteratee(iteratee, 3));
     }
 
     /**
@@ -49379,7 +49532,7 @@ return jQuery;
      * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.
      */
     function forOwnRight(object, iteratee) {
-      return object && baseForOwnRight(object, getIteratee(iteratee));
+      return object && baseForOwnRight(object, getIteratee(iteratee, 3));
     }
 
     /**
@@ -49391,7 +49544,7 @@ return jQuery;
      * @memberOf _
      * @category Object
      * @param {Object} object The object to inspect.
-     * @returns {Array} Returns the new array of property names.
+     * @returns {Array} Returns the function names.
      * @see _.functionsIn
      * @example
      *
@@ -49418,7 +49571,7 @@ return jQuery;
      * @since 4.0.0
      * @category Object
      * @param {Object} object The object to inspect.
-     * @returns {Array} Returns the new array of property names.
+     * @returns {Array} Returns the function names.
      * @see _.functions
      * @example
      *
@@ -49771,7 +49924,7 @@ return jQuery;
      * inherited enumerable string keyed properties of source objects into the
      * destination object. Source properties that resolve to `undefined` are
      * skipped if a destination value exists. Array and plain object properties
-     * are merged recursively.Other objects and value types are overridden by
+     * are merged recursively. Other objects and value types are overridden by
      * assignment. Source objects are applied from left to right. Subsequent
      * sources overwrite property assignments of previous sources.
      *
@@ -50056,7 +50209,8 @@ return jQuery;
 
     /**
      * Creates an array of own enumerable string keyed-value pairs for `object`
-     * which can be consumed by `_.fromPairs`.
+     * which can be consumed by `_.fromPairs`. If `object` is a map or set, its
+     * entries are returned.
      *
      * @static
      * @memberOf _
@@ -50064,7 +50218,7 @@ return jQuery;
      * @alias entries
      * @category Object
      * @param {Object} object The object to query.
-     * @returns {Array} Returns the new array of key-value pairs.
+     * @returns {Array} Returns the key-value pairs.
      * @example
      *
      * function Foo() {
@@ -50077,13 +50231,12 @@ return jQuery;
      * _.toPairs(new Foo);
      * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)
      */
-    function toPairs(object) {
-      return baseToPairs(object, keys(object));
-    }
+    var toPairs = createToPairs(keys);
 
     /**
      * Creates an array of own and inherited enumerable string keyed-value pairs
-     * for `object` which can be consumed by `_.fromPairs`.
+     * for `object` which can be consumed by `_.fromPairs`. If `object` is a map
+     * or set, its entries are returned.
      *
      * @static
      * @memberOf _
@@ -50091,7 +50244,7 @@ return jQuery;
      * @alias entriesIn
      * @category Object
      * @param {Object} object The object to query.
-     * @returns {Array} Returns the new array of key-value pairs.
+     * @returns {Array} Returns the key-value pairs.
      * @example
      *
      * function Foo() {
@@ -50102,25 +50255,24 @@ return jQuery;
      * Foo.prototype.c = 3;
      *
      * _.toPairsIn(new Foo);
-     * // => [['a', 1], ['b', 2], ['c', 1]] (iteration order is not guaranteed)
+     * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)
      */
-    function toPairsIn(object) {
-      return baseToPairs(object, keysIn(object));
-    }
+    var toPairsIn = createToPairs(keysIn);
 
     /**
      * An alternative to `_.reduce`; this method transforms `object` to a new
      * `accumulator` object which is the result of running each of its own
      * enumerable string keyed properties thru `iteratee`, with each invocation
-     * potentially mutating the `accumulator` object. The iteratee is invoked
-     * with four arguments: (accumulator, value, key, object). Iteratee functions
-     * may exit iteration early by explicitly returning `false`.
+     * potentially mutating the `accumulator` object. If `accumulator` is not
+     * provided, a new object with the same `[[Prototype]]` will be used. The
+     * iteratee is invoked with four arguments: (accumulator, value, key, object).
+     * Iteratee functions may exit iteration early by explicitly returning `false`.
      *
      * @static
      * @memberOf _
      * @since 1.3.0
      * @category Object
-     * @param {Array|Object} object The object to iterate over.
+     * @param {Object} object The object to iterate over.
      * @param {Function} [iteratee=_.identity] The function invoked per iteration.
      * @param {*} [accumulator] The custom accumulator value.
      * @returns {*} Returns the accumulated value.
@@ -50542,7 +50694,7 @@ return jQuery;
      * @category String
      * @param {string} [string=''] The string to search.
      * @param {string} [target] The string to search for.
-     * @param {number} [position=string.length] The position to search from.
+     * @param {number} [position=string.length] The position to search up to.
      * @returns {boolean} Returns `true` if `string` ends with `target`,
      *  else `false`.
      * @example
@@ -50936,7 +51088,7 @@ return jQuery;
      * @param {string} [string=''] The string to split.
      * @param {RegExp|string} separator The separator pattern to split by.
      * @param {number} [limit] The length to truncate results to.
-     * @returns {Array} Returns the new array of string segments.
+     * @returns {Array} Returns the string segments.
      * @example
      *
      * _.split('a-b-c', '-', 2);
@@ -51081,12 +51233,6 @@ return jQuery;
      * compiled({ 'user': 'pebbles' });
      * // => 'hello pebbles!'
      *
-     * // Use custom template delimiters.
-     * _.templateSettings.interpolate = /{{([\s\S]+?)}}/g;
-     * var compiled = _.template('hello {{ user }}!');
-     * compiled({ 'user': 'mustache' });
-     * // => 'hello mustache!'
-     *
      * // Use backslashes to treat delimiters as plain text.
      * var compiled = _.template('<%= "\\<%- value %\\>" %>');
      * compiled({ 'value': 'ignored' });
@@ -51112,9 +51258,15 @@ return jQuery;
      * //   return __p;
      * // }
      *
+     * // Use custom template delimiters.
+     * _.templateSettings.interpolate = /{{([\s\S]+?)}}/g;
+     * var compiled = _.template('hello {{ user }}!');
+     * compiled({ 'user': 'mustache' });
+     * // => 'hello mustache!'
+     *
      * // Use the `source` property to inline compiled templates for meaningful
      * // line numbers in error messages and stack traces.
-     * fs.writeFileSync(path.join(cwd, 'jst.js'), '\
+     * fs.writeFileSync(path.join(process.cwd(), 'jst.js'), '\
      *   var JST = {\
      *     "main": ' + _.template(mainText).source + '\
      *   };\
@@ -51627,7 +51779,7 @@ return jQuery;
      *   }
      * };
      *
-     * _.bindAll(view, 'onClick');
+     * _.bindAll(view, ['onClick']);
      * jQuery(element).on('click', view.onClick);
      * // => Logs 'clicked docs' when clicked.
      */
@@ -51650,7 +51802,7 @@ return jQuery;
      * @since 4.0.0
      * @category Util
      * @param {Array} pairs The predicate-function pairs.
-     * @returns {Function} Returns the new function.
+     * @returns {Function} Returns the new composite function.
      * @example
      *
      * var func = _.cond([
@@ -51700,7 +51852,7 @@ return jQuery;
      * @since 4.0.0
      * @category Util
      * @param {Object} source The object of property predicates to conform to.
-     * @returns {Function} Returns the new function.
+     * @returns {Function} Returns the new spec function.
      * @example
      *
      * var users = [
@@ -51708,7 +51860,7 @@ return jQuery;
      *   { 'user': 'fred',   'age': 40 }
      * ];
      *
-     * _.filter(users, _.conforms({ 'age': _.partial(_.gt, _, 38) }));
+     * _.filter(users, _.conforms({ 'age': function(n) { return n > 38; } }));
      * // => [{ 'user': 'fred', 'age': 40 }]
      */
     function conforms(source) {
@@ -51723,13 +51875,15 @@ return jQuery;
      * @since 2.4.0
      * @category Util
      * @param {*} value The value to return from the new function.
-     * @returns {Function} Returns the new function.
+     * @returns {Function} Returns the new constant function.
      * @example
      *
-     * var object = { 'user': 'fred' };
-     * var getter = _.constant(object);
+     * var objects = _.times(2, _.constant({ 'a': 1 }));
+     *
+     * console.log(objects);
+     * // => [{ 'a': 1 }, { 'a': 1 }]
      *
-     * getter() === object;
+     * console.log(objects[0] === objects[1]);
      * // => true
      */
     function constant(value) {
@@ -51748,7 +51902,7 @@ return jQuery;
      * @since 3.0.0
      * @category Util
      * @param {...(Function|Function[])} [funcs] Functions to invoke.
-     * @returns {Function} Returns the new function.
+     * @returns {Function} Returns the new composite function.
      * @see _.flowRight
      * @example
      *
@@ -51756,7 +51910,7 @@ return jQuery;
      *   return n * n;
      * }
      *
-     * var addSquare = _.flow(_.add, square);
+     * var addSquare = _.flow([_.add, square]);
      * addSquare(1, 2);
      * // => 9
      */
@@ -51771,7 +51925,7 @@ return jQuery;
      * @memberOf _
      * @category Util
      * @param {...(Function|Function[])} [funcs] Functions to invoke.
-     * @returns {Function} Returns the new function.
+     * @returns {Function} Returns the new composite function.
      * @see _.flow
      * @example
      *
@@ -51779,7 +51933,7 @@ return jQuery;
      *   return n * n;
      * }
      *
-     * var addSquare = _.flowRight(square, _.add);
+     * var addSquare = _.flowRight([square, _.add]);
      * addSquare(1, 2);
      * // => 9
      */
@@ -51798,7 +51952,7 @@ return jQuery;
      *
      * var object = { 'user': 'fred' };
      *
-     * _.identity(object) === object;
+     * console.log(_.identity(object) === object);
      * // => true
      */
     function identity(value) {
@@ -51864,7 +52018,7 @@ return jQuery;
      * @since 3.0.0
      * @category Util
      * @param {Object} source The object of property values to match.
-     * @returns {Function} Returns the new function.
+     * @returns {Function} Returns the new spec function.
      * @example
      *
      * var users = [
@@ -51892,7 +52046,7 @@ return jQuery;
      * @category Util
      * @param {Array|string} path The path of the property to get.
      * @param {*} srcValue The value to match.
-     * @returns {Function} Returns the new function.
+     * @returns {Function} Returns the new spec function.
      * @example
      *
      * var users = [
@@ -51917,7 +52071,7 @@ return jQuery;
      * @category Util
      * @param {Array|string} path The path of the method to invoke.
      * @param {...*} [args] The arguments to invoke the method with.
-     * @returns {Function} Returns the new function.
+     * @returns {Function} Returns the new invoker function.
      * @example
      *
      * var objects = [
@@ -51948,7 +52102,7 @@ return jQuery;
      * @category Util
      * @param {Object} object The object to query.
      * @param {...*} [args] The arguments to invoke the method with.
-     * @returns {Function} Returns the new function.
+     * @returns {Function} Returns the new invoker function.
      * @example
      *
      * var array = _.times(3, _.constant),
@@ -52059,8 +52213,7 @@ return jQuery;
     }
 
     /**
-     * A no-operation function that returns `undefined` regardless of the
-     * arguments it receives.
+     * A method that returns `undefined`.
      *
      * @static
      * @memberOf _
@@ -52068,17 +52221,15 @@ return jQuery;
      * @category Util
      * @example
      *
-     * var object = { 'user': 'fred' };
-     *
-     * _.noop(object) === undefined;
-     * // => true
+     * _.times(2, _.noop);
+     * // => [undefined, undefined]
      */
     function noop() {
       // No operation performed.
     }
 
     /**
-     * Creates a function that returns its nth argument. If `n` is negative,
+     * Creates a function that gets the argument at index `n`. If `n` is negative,
      * the nth argument from the end is returned.
      *
      * @static
@@ -52086,7 +52237,7 @@ return jQuery;
      * @since 4.0.0
      * @category Util
      * @param {number} [n=0] The index of the argument to return.
-     * @returns {Function} Returns the new function.
+     * @returns {Function} Returns the new pass-thru function.
      * @example
      *
      * var func = _.nthArg(1);
@@ -52117,7 +52268,7 @@ return jQuery;
      * @returns {Function} Returns the new function.
      * @example
      *
-     * var func = _.over(Math.max, Math.min);
+     * var func = _.over([Math.max, Math.min]);
      *
      * func(1, 2, 3, 4);
      * // => [4, 1]
@@ -52137,7 +52288,7 @@ return jQuery;
      * @returns {Function} Returns the new function.
      * @example
      *
-     * var func = _.overEvery(Boolean, isFinite);
+     * var func = _.overEvery([Boolean, isFinite]);
      *
      * func('1');
      * // => true
@@ -52163,7 +52314,7 @@ return jQuery;
      * @returns {Function} Returns the new function.
      * @example
      *
-     * var func = _.overSome(Boolean, isFinite);
+     * var func = _.overSome([Boolean, isFinite]);
      *
      * func('1');
      * // => true
@@ -52184,7 +52335,7 @@ return jQuery;
      * @since 2.4.0
      * @category Util
      * @param {Array|string} path The path of the property to get.
-     * @returns {Function} Returns the new function.
+     * @returns {Function} Returns the new accessor function.
      * @example
      *
      * var objects = [
@@ -52211,7 +52362,7 @@ return jQuery;
      * @since 3.0.0
      * @category Util
      * @param {Object} object The object to query.
-     * @returns {Function} Returns the new function.
+     * @returns {Function} Returns the new accessor function.
      * @example
      *
      * var array = [0, 1, 2],
@@ -52245,7 +52396,7 @@ return jQuery;
      * @param {number} [start=0] The start of the range.
      * @param {number} end The end of the range.
      * @param {number} [step=1] The value to increment or decrement by.
-     * @returns {Array} Returns the new array of numbers.
+     * @returns {Array} Returns the range of numbers.
      * @see _.inRange, _.rangeRight
      * @example
      *
@@ -52283,7 +52434,7 @@ return jQuery;
      * @param {number} [start=0] The start of the range.
      * @param {number} end The end of the range.
      * @param {number} [step=1] The value to increment or decrement by.
-     * @returns {Array} Returns the new array of numbers.
+     * @returns {Array} Returns the range of numbers.
      * @see _.inRange, _.range
      * @example
      *
@@ -52311,6 +52462,101 @@ return jQuery;
     var rangeRight = createRange(true);
 
     /**
+     * A method that returns a new empty array.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.13.0
+     * @category Util
+     * @returns {Array} Returns the new empty array.
+     * @example
+     *
+     * var arrays = _.times(2, _.stubArray);
+     *
+     * console.log(arrays);
+     * // => [[], []]
+     *
+     * console.log(arrays[0] === arrays[1]);
+     * // => false
+     */
+    function stubArray() {
+      return [];
+    }
+
+    /**
+     * A method that returns `false`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.13.0
+     * @category Util
+     * @returns {boolean} Returns `false`.
+     * @example
+     *
+     * _.times(2, _.stubFalse);
+     * // => [false, false]
+     */
+    function stubFalse() {
+      return false;
+    }
+
+    /**
+     * A method that returns a new empty object.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.13.0
+     * @category Util
+     * @returns {Object} Returns the new empty object.
+     * @example
+     *
+     * var objects = _.times(2, _.stubObject);
+     *
+     * console.log(objects);
+     * // => [{}, {}]
+     *
+     * console.log(objects[0] === objects[1]);
+     * // => false
+     */
+    function stubObject() {
+      return {};
+    }
+
+    /**
+     * A method that returns an empty string.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.13.0
+     * @category Util
+     * @returns {string} Returns the empty string.
+     * @example
+     *
+     * _.times(2, _.stubString);
+     * // => ['', '']
+     */
+    function stubString() {
+      return '';
+    }
+
+    /**
+     * A method that returns `true`.
+     *
+     * @static
+     * @memberOf _
+     * @since 4.13.0
+     * @category Util
+     * @returns {boolean} Returns `true`.
+     * @example
+     *
+     * _.times(2, _.stubTrue);
+     * // => [true, true]
+     */
+    function stubTrue() {
+      return true;
+    }
+
+    /**
      * Invokes the iteratee `n` times, returning an array of the results of
      * each invocation. The iteratee is invoked with one argument; (index).
      *
@@ -52326,8 +52572,8 @@ return jQuery;
      * _.times(3, String);
      * // => ['0', '1', '2']
      *
-     *  _.times(4, _.constant(true));
-     * // => [true, true, true, true]
+     *  _.times(4, _.constant(0));
+     * // => [0, 0, 0, 0]
      */
     function times(n, iteratee) {
       n = toInteger(n);
@@ -52363,15 +52609,6 @@ return jQuery;
      *
      * _.toPath('a[0].b.c');
      * // => ['a', '0', 'b', 'c']
-     *
-     * var path = ['a', 'b', 'c'],
-     *     newPath = _.toPath(path);
-     *
-     * console.log(newPath);
-     * // => ['a', 'b', 'c']
-     *
-     * console.log(path === newPath);
-     * // => false
      */
     function toPath(value) {
       if (isArray(value)) {
@@ -53010,6 +53247,11 @@ return jQuery;
     lodash.meanBy = meanBy;
     lodash.min = min;
     lodash.minBy = minBy;
+    lodash.stubArray = stubArray;
+    lodash.stubFalse = stubFalse;
+    lodash.stubObject = stubObject;
+    lodash.stubString = stubString;
+    lodash.stubTrue = stubTrue;
     lodash.multiply = multiply;
     lodash.nth = nth;
     lodash.noConflict = noConflict;
@@ -53044,6 +53286,7 @@ return jQuery;
     lodash.sumBy = sumBy;
     lodash.template = template;
     lodash.times = times;
+    lodash.toFinite = toFinite;
     lodash.toInteger = toInteger;
     lodash.toLength = toLength;
     lodash.toLower = toLower;
@@ -53315,7 +53558,7 @@ return jQuery;
   // also prevents errors in cases where Lodash is loaded by a script tag in the
   // presence of an AMD loader. See http://requirejs.org/docs/errors.html#mismatch
   // for more details. Use `_.noConflict` to remove Lodash from the global object.
-  (freeWindow || freeSelf || {})._ = _;
+  (freeSelf || {})._ = _;
 
   // Some AMD build optimizers like r.js check for condition patterns like the following:
   if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
@@ -53326,11 +53569,9 @@ return jQuery;
     });
   }
   // Check for `exports` after `define` in case a build optimizer adds an `exports` object.
-  else if (freeExports && freeModule) {
+  else if (freeModule) {
     // Export for Node.js.
-    if (moduleExports) {
-      (freeModule.exports = _)._ = _;
-    }
+    (freeModule.exports = _)._ = _;
     // Export for CommonJS support.
     freeExports._ = _;
   }
diff --git a/web/src/js/components/flowtable.js b/web/src/js/components/flowtable.js
index d621387c..642ded17 100644
--- a/web/src/js/components/flowtable.js
+++ b/web/src/js/components/flowtable.js
@@ -46,61 +46,59 @@ const FlowRowContainer = connect(
     })
 )(FlowRow)
 
-class FlowTableHead extends React.Component {
+function FlowTableHead({setSort, columns, sort}) {
+
+        //const hasSort = Column.sortKeyFun;
+
+        // let sortDesc = this.props.sort.sortDesc;
+        //
+        // if (Column === this.props.sort.sortColumn) {
+        //     sortDesc = !sortDesc;
+        //     this.props.setSort(sortColumn, sortDesc);
+        // } else {
+        //     this.props.setSort({sortColumn: hasSort && Column, sortDesc: false});
+        // }
+        //
+        // let sortKeyFun = Column.sortKeyFun;
+        // if (sortDesc) {
+        //     sortKeyFun = hasSort && function () {
+        //             const k = Column.sortKeyFun.apply(this, arguments);
+        //             if (_.isString(k)) {
+        //                 return reverseString("" + k);
+        //             }
+        //             return -k;
+        //         };
+        // }
+        //this.props.setSortKeyFun(sortKeyFun);
+
+        const sortColumn = sort.sortColumn;
+        const sortType = sort.sortDesc ? "sort-desc" : "sort-asc";
 
-    static propTypes = {
-        setSortKeyFun: React.PropTypes.func.isRequired,
-        columns: React.PropTypes.array.isRequired,
-    };
-
-    constructor(props, context) {
-        super(props, context);
-        this.state = {sortColumn: undefined, sortDesc: false};
-    }
-
-    onClick(Column) {
-        const hasSort = Column.sortKeyFun;
-
-        let sortDesc = this.state.sortDesc;
-
-        if (Column === this.state.sortColumn) {
-            sortDesc = !sortDesc;
-            this.setState({sortDesc});
-        } else {
-            this.setState({sortColumn: hasSort && Column, sortDesc: false});
-        }
-
-        let sortKeyFun = Column.sortKeyFun;
-        if (sortDesc) {
-            sortKeyFun = hasSort && function () {
-                    const k = Column.sortKeyFun.apply(this, arguments);
-                    if (_.isString(k)) {
-                        return reverseString("" + k);
-                    }
-                    return -k;
-                };
-        }
-
-        this.props.setSortKeyFun(sortKeyFun);
-    }
-
-    render() {
-        const sortColumn = this.state.sortColumn;
-        const sortType = this.state.sortDesc ? "sort-desc" : "sort-asc";
         return (
             <tr>
-                {this.props.columns.map(Column => (
+                {columns.map(Column => (
                     <Column.Title
                         key={Column.name}
-                        onClick={() => this.onClick(Column)}
-                        className={sortColumn === Column ? sortType : undefined}
+                        onClick={() => setSort({sortColumn: Column.name, sortDesc: Column.name != sort.sortColumn ? false : !sort.sortDesc})}
+                        className={sortColumn === Column.name ? sortType : undefined}
                     />
                 ))}
             </tr>
         );
-    }
 }
 
+FlowTableHead.propTypes = {
+        setSort: React.PropTypes.func.isRequired,
+        sort: React.PropTypes.object.isRequired,
+        columns: React.PropTypes.array.isRequired
+};
+
+const FlowTableHeadContainer = connect(
+    (state, ownProps) => ({
+        sort: state.flows.sort
+    })
+)(FlowTableHead)
+
 class FlowTable extends React.Component {
 
     static propTypes = {
@@ -186,9 +184,10 @@ class FlowTable extends React.Component {
             <div className="flow-table" onScroll={this.onViewportUpdate}>
                 <table>
                     <thead ref="head" style={{ transform }}>
-                    <FlowTableHead
+                    <FlowTableHeadContainer
                         columns={flowtable_columns}
                         setSortKeyFun={this.props.setSortKeyFun}
+                        setSort={this.props.setSort}
                     />
                     </thead>
                     <tbody>
diff --git a/web/src/js/components/mainview.js b/web/src/js/components/mainview.js
index 22895991..99cdeb3c 100644
--- a/web/src/js/components/mainview.js
+++ b/web/src/js/components/mainview.js
@@ -7,7 +7,7 @@ import {Splitter} from "./common.js"
 import FlowTable from "./flowtable.js";
 import FlowView from "./flowview/index.js";
 import {connect} from 'react-redux'
-import {selectFlow, setFilter, setHighlight} from "../ducks/flows";
+import {selectFlow, setFilter, setHighlight, setSort} from "../ducks/flows";
 
 
 var MainView = React.createClass({
@@ -161,7 +161,8 @@ var MainView = React.createClass({
             <div className="main-view">
                 <FlowTable ref="flowTable"
                     selectFlow={this.selectFlow}
-                    setSortKeyFun={this.setSortKeyFun}
+                    setSortKeyFun={(f) => console.log("asdf")}
+                    setSort={this.props.setSort}
                     selected={this.props.selectedFlow} />
                 {details}
             </div>
@@ -173,12 +174,14 @@ const MainViewContainer = connect(
     state => ({
         flows: state.flows.view,
         filter: state.flows.filter,
+        sort: state.flows.sort,
         highlight: state.flows.highlight,
         selectedFlow: state.flows.all.byId[state.flows.selected[0]]
     }),
     dispatch => ({
         selectFlow: flowId => dispatch(selectFlow(flowId)),
         setFilter: filter => dispatch(setFilter(filter)),
+        setSort: (sort) => dispatch(setSort(sort)),
         setHighlight: highlight => dispatch(setHighlight(highlight))
     }),
     undefined,
diff --git a/web/src/js/ducks/flows.js b/web/src/js/ducks/flows.js
index fdbc42ee..bde53179 100644
--- a/web/src/js/ducks/flows.js
+++ b/web/src/js/ducks/flows.js
@@ -5,6 +5,7 @@ import {updateViewFilter, updateViewList} from "./utils/view"
 export const UPDATE_FLOWS = "UPDATE_FLOWS"
 export const SET_FILTER = "SET_FLOW_FILTER"
 export const SET_HIGHLIGHT = "SET_FLOW_HIGHLIGHT"
+export const SET_SORT = "SET_FLOW_SORT"
 export const SELECT_FLOW = "SELECT_FLOW"
 
 const {
@@ -20,6 +21,7 @@ const defaultState = {
     view: [],
     filter: undefined,
     highlight: undefined,
+    sort: {sortColumn: undefined, sortDesc: false},
 }
 
 function makeFilterFn(filter) {
@@ -46,6 +48,11 @@ export default function reducer(state = defaultState, action) {
                 ...state,
                 highlight: action.highlight
             }
+        case SET_SORT:
+            return {
+                ...state,
+                sort: action.sort
+            }
         case SELECT_FLOW:
             return {
                 ...state,
@@ -69,6 +76,12 @@ export function setHighlight(highlight) {
         highlight
     }
 }
+export  function setSort(sort){
+    return {
+        type: SET_SORT,
+        sort
+    }
+}
 export function selectFlow(flowId) {
     return {
         type: SELECT_FLOW,