Bump to v4.7.0.

LICENSE

@@ -1,23 +1,47 @@
-The MIT License (MIT)
+Copyright jQuery Foundation and other contributors <https://jquery.org/>
 
-Copyright 2012-2016 The Dojo Foundation <http://dojofoundation.org/>
-Based on Underscore.js, copyright 2009-2016 Jeremy Ashkenas,
+Based on Underscore.js, copyright Jeremy Ashkenas,
 DocumentCloud and Investigative Reporters & Editors <http://underscorejs.org/>
 
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
+This software consists of voluntary contributions made by many
+individuals. For exact contribution history, see the revision history
+available at https://github.com/lodash/lodash
 
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
+The following license applies to all parts of this software except as
+documented below:
 
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+====
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+====
+
+Copyright and related rights for sample code are waived via CC0. Sample
+code is defined as all source code displayed within the prose of the
+documentation.
+
+CC0: http://creativecommons.org/publicdomain/zero/1.0/
+
+====
+
+Files located in the node_modules and vendor directories are externally
+maintained libraries used by this software which have their own
+licenses; we recommend you read them, as their terms may differ from the
+terms above.

README.md

@@ -1,4 +1,4 @@
-# lodash-amd v4.4.0
+# lodash-amd v4.7.0
 
 The [lodash](https://lodash.com/) library exported as [AMD](https://github.com/amdjs/amdjs-api/wiki/AMD) modules.
 
@@ -27,4 +27,4 @@ require({
 });
 ```
 
-See the [package source](https://github.com/lodash/lodash/tree/4.4.0-amd) for more details.
+See the [package source](https://github.com/lodash/lodash/tree/4.7.0-amd) for more details.

_DataView.js

@@ -0,0 +1,7 @@
+define(['./_getNative', './_root'], function(getNative, root) {
+
+  /* Built-in method references that are verified to be native. */
+  var DataView = getNative(root, 'DataView');
+
+  return DataView;
+});

_LazyWrapper.js

@@ -20,6 +20,7 @@ define(['./_baseCreate', './_baseLodash'], function(baseCreate, baseLodash) {
     this.__views__ = [];
   }
 
+  // Ensure `LazyWrapper` is an instance of `baseLodash`.
   LazyWrapper.prototype = baseCreate(baseLodash.prototype);
   LazyWrapper.prototype.constructor = LazyWrapper;
 

_LodashWrapper.js

@@ -8,7 +8,7 @@ define(['./_baseCreate', './_baseLodash'], function(baseCreate, baseLodash) {
    *
    * @private
    * @param {*} value The value to wrap.
-   * @param {boolean} [chainAll] Enable chaining for all wrapper methods.
+   * @param {boolean} [chainAll] Enable explicit method chain sequences.
    */
   function LodashWrapper(value, chainAll) {
     this.__wrapped__ = value;

_MapCache.js

@@ -18,7 +18,7 @@ define(['./_mapClear', './_mapDelete', './_mapGet', './_mapHas', './_mapSet'], f
     }
   }
 
-  // Add functions to the `MapCache`.
+  // Add methods to `MapCache`.
   MapCache.prototype.clear = mapClear;
   MapCache.prototype['delete'] = mapDelete;
   MapCache.prototype.get = mapGet;

_Promise.js

@@ -0,0 +1,7 @@
+define(['./_getNative', './_root'], function(getNative, root) {
+
+  /* Built-in method references that are verified to be native. */
+  var Promise = getNative(root, 'Promise');
+
+  return Promise;
+});

_SetCache.js

@@ -18,7 +18,7 @@ define(['./_MapCache', './_cachePush'], function(MapCache, cachePush) {
     }
   }
 
-  // Add functions to the `SetCache`.
+  // Add methods to `SetCache`.
   SetCache.prototype.push = cachePush;
 
   return SetCache;

_Stack.js

@@ -18,7 +18,7 @@ define(['./_stackClear', './_stackDelete', './_stackGet', './_stackHas', './_sta
     }
   }
 
-  // Add functions to the `Stack` cache.
+  // Add methods to `Stack`.
   Stack.prototype.clear = stackClear;
   Stack.prototype['delete'] = stackDelete;
   Stack.prototype.get = stackGet;

_addMapEntry.js

@@ -9,6 +9,7 @@ define([], function() {
    * @returns {Object} Returns `map`.
    */
   function addMapEntry(map, pair) {
+    // Don't return `Map#set` because it doesn't return the map instance in IE 11.
     map.set(pair[0], pair[1]);
     return map;
   }

_arrayEvery.js

@@ -7,7 +7,8 @@ define([], function() {
    * @private
    * @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`.
+   * @returns {boolean} Returns `true` if all elements pass the predicate check,
+   *  else `false`.
    */
   function arrayEvery(array, predicate) {
     var index = -1,

_arrayFilter.js

@@ -12,13 +12,13 @@ define([], function() {
   function arrayFilter(array, predicate) {
     var index = -1,
         length = array.length,
-        resIndex = -1,
+        resIndex = 0,
         result = [];
 
     while (++index < length) {
       var value = array[index];
       if (predicate(value, index, array)) {
-        result[++resIndex] = value;
+        result[resIndex++] = value;
       }
     }
     return result;

_arrayIncludesWith.js

@@ -1,8 +1,7 @@
 define([], function() {
 
   /**
-   * A specialized version of `_.includesWith` for arrays without support for
-   * specifying an index to search from.
+   * This function is like `arrayIncludes` except that it accepts a comparator.
    *
    * @private
    * @param {Array} array The array to search.

_arrayReduce.js

@@ -8,7 +8,8 @@ define([], function() {
    * @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 the initial value.
+   * @param {boolean} [initAccum] Specify using the first element of `array` as
+   *  the initial value.
    * @returns {*} Returns the accumulated value.
    */
   function arrayReduce(array, iteratee, accumulator, initAccum) {

_arrayReduceRight.js

@@ -8,7 +8,8 @@ define([], function() {
    * @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 the initial value.
+   * @param {boolean} [initAccum] Specify using the last element of `array` as
+   *  the initial value.
    * @returns {*} Returns the accumulated value.
    */
   function arrayReduceRight(array, iteratee, accumulator, initAccum) {

_arraySome.js

@@ -7,7 +7,8 @@ define([], function() {
    * @private
    * @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`.
+   * @returns {boolean} Returns `true` if any element passes the predicate check,
+   *  else `false`.
    */
   function arraySome(array, predicate) {
     var index = -1,

_assignMergeValue.js

@@ -4,7 +4,8 @@ define(['./eq'], function(eq) {
   var undefined;
 
   /**
-   * This function is like `assignValue` except that it doesn't assign `undefined` values.
+   * This function is like `assignValue` except that it doesn't assign
+   * `undefined` values.
    *
    * @private
    * @param {Object} object The object to modify.

_assignValue.js

@@ -21,8 +21,7 @@ define(['./eq'], function(eq) {
    */
   function assignValue(object, key, value) {
     var objValue = object[key];
-    if ((!eq(objValue, value) ||
-          (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) ||
+    if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||
         (value === undefined && !(key in object))) {
       object[key] = value;
     }

_assocDelete.js

@@ -10,7 +10,7 @@ define(['./_assocIndexOf'], function(assocIndexOf) {
    * Removes `key` and its value from the associative array.
    *
    * @private
-   * @param {Array} array The array to query.
+   * @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`.
    */

_assocIndexOf.js

@@ -1,8 +1,7 @@
 define(['./eq'], function(eq) {
 
   /**
-   * Gets the index at which the first occurrence of `key` is found in `array`
-   * of key-value pairs.
+   * Gets the index at which the `key` is found in `array` of key-value pairs.
    *
    * @private
    * @param {Array} array The array to search.

_baseCastArrayLikeObject.js

@@ -5,7 +5,7 @@ define(['./isArrayLikeObject'], function(isArrayLikeObject) {
    *
    * @private
    * @param {*} value The value to inspect.
-   * @returns {Array} Returns the array-like object.
+   * @returns {Array|Object} Returns the cast array-like object.
    */
   function baseCastArrayLikeObject(value) {
     return isArrayLikeObject(value) ? value : [];

_baseCastFunction.js

@@ -5,7 +5,7 @@ define(['./identity'], function(identity) {
    *
    * @private
    * @param {*} value The value to inspect.
-   * @returns {Array} Returns the array-like object.
+   * @returns {Function} Returns cast function.
    */
   function baseCastFunction(value) {
     return typeof value == 'function' ? value : identity;

_baseCastKey.js

@@ -0,0 +1,15 @@
+define(['./isSymbol'], function(isSymbol) {
+
+  /**
+   * Casts `value` to a string if it's not a string or symbol.
+   *
+   * @private
+   * @param {*} value The value to inspect.
+   * @returns {string|symbol} Returns the cast key.
+   */
+  function baseCastKey(key) {
+    return (typeof key == 'string' || isSymbol(key)) ? key : (key + '');
+  }
+
+  return baseCastKey;
+});

_baseClone.js

@@ -1,4 +1,4 @@
-define(['./_Stack', './_arrayEach', './_assignValue', './_baseAssign', './_baseForOwn', './_cloneBuffer', './_copyArray', './_copySymbols', './_getTag', './_initCloneArray', './_initCloneByTag', './_initCloneObject', './isArray', './isBuffer', './_isHostObject', './isObject'], function(Stack, arrayEach, assignValue, baseAssign, baseForOwn, cloneBuffer, copyArray, copySymbols, getTag, initCloneArray, initCloneByTag, initCloneObject, isArray, isBuffer, isHostObject, isObject) {
+define(['./_Stack', './_arrayEach', './_assignValue', './_baseAssign', './_cloneBuffer', './_copyArray', './_copySymbols', './_getAllKeys', './_getTag', './_initCloneArray', './_initCloneByTag', './_initCloneObject', './isArray', './isBuffer', './_isHostObject', './isObject', './keys'], function(Stack, arrayEach, assignValue, baseAssign, cloneBuffer, copyArray, copySymbols, getAllKeys, getTag, initCloneArray, initCloneByTag, initCloneObject, isArray, isBuffer, isHostObject, isObject, keys) {
 
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
@@ -21,6 +21,7 @@ define(['./_Stack', './_arrayEach', './_assignValue', './_baseAssign', './_baseF
       weakMapTag = '[object WeakMap]';
 
   var arrayBufferTag = '[object ArrayBuffer]',
+      dataViewTag = '[object DataView]',
       float32Tag = '[object Float32Array]',
       float64Tag = '[object Float64Array]',
       int8Tag = '[object Int8Array]',
@@ -34,16 +35,16 @@ define(['./_Stack', './_arrayEach', './_assignValue', './_baseAssign', './_baseF
   /** Used to identify `toStringTag` values supported by `_.clone`. */
   var cloneableTags = {};
   cloneableTags[argsTag] = cloneableTags[arrayTag] =
-  cloneableTags[arrayBufferTag] = cloneableTags[boolTag] =
-  cloneableTags[dateTag] = cloneableTags[float32Tag] =
-  cloneableTags[float64Tag] = cloneableTags[int8Tag] =
-  cloneableTags[int16Tag] = cloneableTags[int32Tag] =
-  cloneableTags[mapTag] = cloneableTags[numberTag] =
-  cloneableTags[objectTag] = cloneableTags[regexpTag] =
-  cloneableTags[setTag] = cloneableTags[stringTag] =
-  cloneableTags[symbolTag] = cloneableTags[uint8Tag] =
-  cloneableTags[uint8ClampedTag] = cloneableTags[uint16Tag] =
-  cloneableTags[uint32Tag] = true;
+  cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =
+  cloneableTags[boolTag] = cloneableTags[dateTag] =
+  cloneableTags[float32Tag] = cloneableTags[float64Tag] =
+  cloneableTags[int8Tag] = cloneableTags[int16Tag] =
+  cloneableTags[int32Tag] = cloneableTags[mapTag] =
+  cloneableTags[numberTag] = cloneableTags[objectTag] =
+  cloneableTags[regexpTag] = cloneableTags[setTag] =
+  cloneableTags[stringTag] = cloneableTags[symbolTag] =
+  cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =
+  cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
   cloneableTags[errorTag] = cloneableTags[funcTag] =
   cloneableTags[weakMapTag] = false;
 
@@ -54,13 +55,14 @@ define(['./_Stack', './_arrayEach', './_assignValue', './_baseAssign', './_baseF
    * @private
    * @param {*} value The value to clone.
    * @param {boolean} [isDeep] Specify a deep clone.
+   * @param {boolean} [isFull] Specify a clone including symbols.
    * @param {Function} [customizer] The function to customize cloning.
    * @param {string} [key] The key of `value`.
    * @param {Object} [object] The parent object of `value`.
    * @param {Object} [stack] Tracks traversed objects and their clone counterparts.
    * @returns {*} Returns the cloned value.
    */
-  function baseClone(value, isDeep, customizer, key, object, stack) {
+  function baseClone(value, isDeep, isFull, customizer, key, object, stack) {
     var result;
     if (customizer) {
       result = object ? customizer(value, key, object, stack) : customizer(value);
@@ -93,9 +95,10 @@ define(['./_Stack', './_arrayEach', './_assignValue', './_baseAssign', './_baseF
           return copySymbols(value, baseAssign(result, value));
         }
       } else {
-        return cloneableTags[tag]
-          ? initCloneByTag(value, tag, isDeep)
-          : (object ? value : {});
+        if (!cloneableTags[tag]) {
+          return object ? value : {};
+        }
+        result = initCloneByTag(value, tag, baseClone, isDeep);
       }
     }
     // Check for circular references and return its corresponding clone.
@@ -106,11 +109,18 @@ define(['./_Stack', './_arrayEach', './_assignValue', './_baseAssign', './_baseF
     }
     stack.set(value, result);
 
+    if (!isArr) {
+      var props = isFull ? getAllKeys(value) : keys(value);
+    }
     // Recursively populate clone (susceptible to call stack limits).
-    (isArr ? arrayEach : baseForOwn)(value, function(subValue, key) {
-      assignValue(result, key, baseClone(subValue, isDeep, customizer, key, value, stack));
+    arrayEach(props || value, function(subValue, key) {
+      if (props) {
+        key = subValue;
+        subValue = value[key];
+      }
+      assignValue(result, key, baseClone(subValue, isDeep, isFull, customizer, key, value, stack));
     });
-    return isArr ? result : copySymbols(value, result);
+    return result;
   }
 
   return baseClone;

_baseConforms.js

@@ -24,7 +24,8 @@ define(['./keys'], function(keys) {
             predicate = source[key],
             value = object[key];
 
-        if ((value === undefined && !(key in Object(object))) || !predicate(value)) {
+        if ((value === undefined &&
+            !(key in Object(object))) || !predicate(value)) {
           return false;
         }
       }

_baseDifference.js

@@ -4,8 +4,8 @@ define(['./_SetCache', './_arrayIncludes', './_arrayIncludesWith', './_arrayMap'
   var LARGE_ARRAY_SIZE = 200;
 
   /**
-   * The base implementation of methods like `_.difference` without support for
-   * excluding multiple arrays or iteratee shorthands.
+   * The base implementation of methods like `_.difference` without support
+   * for excluding multiple arrays or iteratee shorthands.
    *
    * @private
    * @param {Array} array The array to inspect.

_baseEvery.js

@@ -6,7 +6,8 @@ define(['./_baseEach'], function(baseEach) {
    * @private
    * @param {Array|Object} collection The collection to iterate over.
    * @param {Function} predicate The function invoked per iteration.
-   * @returns {boolean} Returns `true` if all elements pass the predicate check, else `false`
+   * @returns {boolean} Returns `true` if all elements pass the predicate check,
+   *  else `false`
    */
   function baseEvery(collection, predicate) {
     var result = true;

_baseFind.js

@@ -9,7 +9,8 @@ define([], function() {
    * @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.
+   * @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) {

_baseFor.js

@@ -1,10 +1,9 @@
 define(['./_createBaseFor'], function(createBaseFor) {
 
   /**
-   * The base implementation of `baseForIn` and `baseForOwn` which iterates
-   * over `object` properties returned by `keysFunc` invoking `iteratee` for
-   * each property. Iteratee functions may exit iteration early by explicitly
-   * returning `false`.
+   * The base implementation of `baseForOwn` which iterates over `object`
+   * properties returned by `keysFunc` invoking `iteratee` for each property.
+   * Iteratee functions may exit iteration early by explicitly returning `false`.
    *
    * @private
    * @param {Object} object The object to iterate over.

_baseForIn.js

@@ -1,16 +0,0 @@
-define(['./_baseFor', './keysIn'], function(baseFor, keysIn) {
-
-  /**
-   * The base implementation of `_.forIn` without support for iteratee shorthands.
-   *
-   * @private
-   * @param {Object} object The object to iterate over.
-   * @param {Function} iteratee The function invoked per iteration.
-   * @returns {Object} Returns `object`.
-   */
-  function baseForIn(object, iteratee) {
-    return object == null ? object : baseFor(object, iteratee, keysIn);
-  }
-
-  return baseForIn;
-});

_baseGet.js

@@ -12,7 +12,7 @@ define(['./_baseCastPath', './_isKey'], function(baseCastPath, isKey) {
    * @returns {*} Returns the resolved value.
    */
   function baseGet(object, path) {
-    path = isKey(path, object) ? [path + ''] : baseCastPath(path);
+    path = isKey(path, object) ? [path] : baseCastPath(path);
 
     var index = 0,
         length = path.length;

_baseGetAllKeys.js

@@ -0,0 +1,22 @@
+define(['./_arrayPush', './isArray'], function(arrayPush, isArray) {
+
+  /**
+   * The base implementation of `getAllKeys` and `getAllKeysIn` which uses
+   * `keysFunc` and `symbolsFunc` to get the enumerable property names and
+   * symbols of `object`.
+   *
+   * @private
+   * @param {Object} object The object to query.
+   * @param {Function} keysFunc The function to get the keys of `object`.
+   * @param {Function} symbolsFunc The function to get the symbols of `object`.
+   * @returns {Array} Returns the array of property names and symbols.
+   */
+  function baseGetAllKeys(object, keysFunc, symbolsFunc) {
+    var result = keysFunc(object);
+    return isArray(object)
+      ? result
+      : arrayPush(result, symbolsFunc(object));
+  }
+
+  return baseGetAllKeys;
+});

_baseHas.js

@@ -1,4 +1,4 @@
-define([], function() {
+define(['./_getPrototype'], function(getPrototype) {
 
   /** Used for built-in method references. */
   var objectProto = Object.prototype;
@@ -6,9 +6,6 @@ define([], function() {
   /** Used to check objects for own properties. */
   var hasOwnProperty = objectProto.hasOwnProperty;
 
-  /** Built-in value references. */
-  var getPrototypeOf = Object.getPrototypeOf;
-
   /**
    * The base implementation of `_.has` without support for deep paths.
    *
@@ -22,7 +19,7 @@ define([], function() {
     // 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 && getPrototypeOf(object) === null);
+      (typeof object == 'object' && key in object && getPrototype(object) === null);
   }
 
   return baseHas;

_baseIndexOfWith.js

@@ -0,0 +1,26 @@
+define([], function() {
+
+  /**
+   * This function is like `baseIndexOf` except that it accepts a comparator.
+   *
+   * @private
+   * @param {Array} array The array to search.
+   * @param {*} value The value to search for.
+   * @param {number} fromIndex The index to search from.
+   * @param {Function} comparator The comparator invoked per element.
+   * @returns {number} Returns the index of the matched value, else `-1`.
+   */
+  function baseIndexOfWith(array, value, fromIndex, comparator) {
+    var index = fromIndex - 1,
+        length = array.length;
+
+    while (++index < length) {
+      if (comparator(array[index], value)) {
+        return index;
+      }
+    }
+    return -1;
+  }
+
+  return baseIndexOfWith;
+});

_baseIntersection.js

@@ -3,6 +3,9 @@ define(['./_SetCache', './_arrayIncludes', './_arrayIncludesWith', './_arrayMap'
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
 
+  /* Built-in method references for those with the same name as other `lodash` methods. */
+  var nativeMin = Math.min;
+
   /**
    * The base implementation of methods like `_.intersection`, without support
    * for iteratee shorthands, that accepts an array of arrays to inspect.
@@ -15,9 +18,11 @@ define(['./_SetCache', './_arrayIncludes', './_arrayIncludesWith', './_arrayMap'
    */
   function baseIntersection(arrays, iteratee, comparator) {
     var includes = comparator ? arrayIncludesWith : arrayIncludes,
+        length = arrays[0].length,
         othLength = arrays.length,
         othIndex = othLength,
         caches = Array(othLength),
+        maxLength = Infinity,
         result = [];
 
     while (othIndex--) {
@@ -25,18 +30,18 @@ define(['./_SetCache', './_arrayIncludes', './_arrayIncludesWith', './_arrayMap'
       if (othIndex && iteratee) {
         array = arrayMap(array, baseUnary(iteratee));
       }
-      caches[othIndex] = !comparator && (iteratee || array.length >= 120)
+      maxLength = nativeMin(array.length, maxLength);
+      caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120))
         ? new SetCache(othIndex && array)
         : undefined;
     }
     array = arrays[0];
 
     var index = -1,
-        length = array.length,
         seen = caches[0];
 
     outer:
-    while (++index < length) {
+    while (++index < length && result.length < maxLength) {
       var value = array[index],
           computed = iteratee ? iteratee(value) : value;
 
@@ -44,7 +49,7 @@ define(['./_SetCache', './_arrayIncludes', './_arrayIncludesWith', './_arrayMap'
             ? cacheHas(seen, computed)
             : includes(result, computed, comparator)
           )) {
-        var othIndex = othLength;
+        othIndex = othLength;
         while (--othIndex) {
           var cache = caches[othIndex];
           if (!(cache

_baseIsEqualDeep.js

@@ -24,7 +24,8 @@ define(['./_Stack', './_equalArrays', './_equalByTag', './_equalObjects', './_ge
    * @param {Object} other The other object to compare.
    * @param {Function} equalFunc The function to determine equivalents of values.
    * @param {Function} [customizer] The function to customize comparisons.
-   * @param {number} [bitmask] The bitmask of comparison flags. See `baseIsEqual` for more details.
+   * @param {number} [bitmask] The bitmask of comparison flags. See `baseIsEqual`
+   *  for more details.
    * @param {Object} [stack] Tracks traversed `object` and `other` objects.
    * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
    */
@@ -36,41 +37,39 @@ define(['./_Stack', './_equalArrays', './_equalByTag', './_equalObjects', './_ge
 
     if (!objIsArr) {
       objTag = getTag(object);
-      if (objTag == argsTag) {
-        objTag = objectTag;
-      } else if (objTag != objectTag) {
-        objIsArr = isTypedArray(object);
-      }
+      objTag = objTag == argsTag ? objectTag : objTag;
     }
     if (!othIsArr) {
       othTag = getTag(other);
-      if (othTag == argsTag) {
-        othTag = objectTag;
-      } else if (othTag != objectTag) {
-        othIsArr = isTypedArray(other);
-      }
+      othTag = othTag == argsTag ? objectTag : othTag;
     }
     var objIsObj = objTag == objectTag && !isHostObject(object),
         othIsObj = othTag == objectTag && !isHostObject(other),
         isSameTag = objTag == othTag;
 
-    if (isSameTag && !(objIsArr || objIsObj)) {
-      return equalByTag(object, other, objTag, equalFunc, customizer, bitmask);
+    if (isSameTag && !objIsObj) {
+      stack || (stack = new Stack);
+      return (objIsArr || isTypedArray(object))
+        ? equalArrays(object, other, equalFunc, customizer, bitmask, stack)
+        : equalByTag(object, other, objTag, equalFunc, customizer, bitmask, stack);
     }
-    var isPartial = bitmask & PARTIAL_COMPARE_FLAG;
-    if (!isPartial) {
+    if (!(bitmask & PARTIAL_COMPARE_FLAG)) {
       var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
           othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');
 
       if (objIsWrapped || othIsWrapped) {
-        return equalFunc(objIsWrapped ? object.value() : object, othIsWrapped ? other.value() : other, customizer, bitmask, stack);
+        var objUnwrapped = objIsWrapped ? object.value() : object,
+            othUnwrapped = othIsWrapped ? other.value() : other;
+
+        stack || (stack = new Stack);
+        return equalFunc(objUnwrapped, othUnwrapped, customizer, bitmask, stack);
       }
     }
     if (!isSameTag) {
       return false;
     }
     stack || (stack = new Stack);
-    return (objIsArr ? equalArrays : equalObjects)(object, other, equalFunc, customizer, bitmask, stack);
+    return equalObjects(object, other, equalFunc, customizer, bitmask, stack);
   }
 
   return baseIsEqualDeep;

_baseIsMatch.js

@@ -46,9 +46,10 @@ define(['./_Stack', './_baseIsEqual'], function(Stack, baseIsEqual) {
           return false;
         }
       } else {
-        var stack = new Stack,
-            result = customizer ? customizer(objValue, srcValue, key, object, source, stack) : undefined;
-
+        var stack = new Stack;
+        if (customizer) {
+          var result = customizer(objValue, srcValue, key, object, source, stack);
+        }
         if (!(result === undefined
               ? baseIsEqual(srcValue, objValue, customizer, UNORDERED_COMPARE_FLAG | PARTIAL_COMPARE_FLAG, stack)
               : result

_baseIteratee.js

@@ -8,14 +8,15 @@ define(['./_baseMatches', './_baseMatchesProperty', './identity', './isArray', '
    * @returns {Function} Returns the iteratee.
    */
   function baseIteratee(value) {
-    var type = typeof value;
-    if (type == 'function') {
+    // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.
+    // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.
+    if (typeof value == 'function') {
       return value;
     }
     if (value == null) {
       return identity;
     }
-    if (type == 'object') {
+    if (typeof value == 'object') {
       return isArray(value)
         ? baseMatchesProperty(value[0], value[1])
         : baseMatches(value);

_baseLodash.js

@@ -1,7 +1,7 @@
 define([], function() {
 
   /**
-   * The function whose prototype all chaining wrappers inherit from.
+   * The function whose prototype chain sequence wrappers inherit from.
    *
    * @private
    */

_baseMean.js

@@ -0,0 +1,21 @@
+define(['./_baseSum'], function(baseSum) {
+
+  /** Used as references for various `Number` constants. */
+  var NAN = 0 / 0;
+
+  /**
+   * The base implementation of `_.mean` and `_.meanBy` without support for
+   * iteratee shorthands.
+   *
+   * @private
+   * @param {Array} array The array to iterate over.
+   * @param {Function} iteratee The function invoked per iteration.
+   * @returns {number} Returns the mean.
+   */
+  function baseMean(array, iteratee) {
+    var length = array ? array.length : 0;
+    return length ? (baseSum(array, iteratee) / length) : NAN;
+  }
+
+  return baseMean;
+});

_baseMerge.js

@@ -11,16 +11,16 @@ define(['./_Stack', './_arrayEach', './_assignMergeValue', './_baseMergeDeep', '
    * @param {Object} source The source object.
    * @param {number} srcIndex The index of `source`.
    * @param {Function} [customizer] The function to customize merged values.
-   * @param {Object} [stack] Tracks traversed source values and their merged counterparts.
+   * @param {Object} [stack] Tracks traversed source values and their merged
+   *  counterparts.
    */
   function baseMerge(object, source, srcIndex, customizer, stack) {
     if (object === source) {
       return;
     }
-    var props = (isArray(source) || isTypedArray(source))
-      ? undefined
-      : keysIn(source);
-
+    if (!(isArray(source) || isTypedArray(source))) {
+      var props = keysIn(source);
+    }
     arrayEach(props || source, function(srcValue, key) {
       if (props) {
         key = srcValue;

_baseMergeDeep.js

@@ -15,7 +15,8 @@ define(['./_assignMergeValue', './_baseClone', './_copyArray', './isArguments',
    * @param {number} srcIndex The index of `source`.
    * @param {Function} mergeFunc The function to merge values.
    * @param {Function} [customizer] The function to customize assigned values.
-   * @param {Object} [stack] Tracks traversed source values and their merged counterparts.
+   * @param {Object} [stack] Tracks traversed source values and their merged
+   *  counterparts.
    */
   function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {
     var objValue = object[key],
@@ -68,6 +69,7 @@ define(['./_assignMergeValue', './_baseClone', './_copyArray', './isArguments',
       // Recursively merge objects and arrays (susceptible to call stack limits).
       mergeFunc(newValue, srcValue, srcIndex, customizer, stack);
     }
+    stack['delete'](srcValue);
     assignMergeValue(object, key, newValue);
   }
 

_baseOrderBy.js

@@ -1,4 +1,4 @@
-define(['./_arrayMap', './_baseIteratee', './_baseMap', './_baseSortBy', './_compareMultiple'], function(arrayMap, baseIteratee, baseMap, baseSortBy, compareMultiple) {
+define(['./_arrayMap', './_baseIteratee', './_baseMap', './_baseSortBy', './_compareMultiple', './identity'], function(arrayMap, baseIteratee, baseMap, baseSortBy, compareMultiple, identity) {
 
   /**
    * The base implementation of `_.orderBy` without param guards.
@@ -10,12 +10,8 @@ define(['./_arrayMap', './_baseIteratee', './_baseMap', './_baseSortBy', './_com
    * @returns {Array} Returns the new sorted array.
    */
   function baseOrderBy(collection, iteratees, orders) {
-    var index = -1,
-        toIteratee = baseIteratee;
-
-    iteratees = arrayMap(iteratees.length ? iteratees : Array(1), function(iteratee) {
-      return toIteratee(iteratee);
-    });
+    var index = -1;
+    iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseIteratee);
 
     var result = baseMap(collection, function(value, key, collection) {
       var criteria = arrayMap(iteratees, function(iteratee) {

_basePick.js

@@ -2,11 +2,11 @@ define(['./_arrayReduce'], function(arrayReduce) {
 
   /**
    * The base implementation of `_.pick` without support for individual
-   * property names.
+   * property identifiers.
    *
    * @private
    * @param {Object} object The source object.
-   * @param {string[]} props The property names to pick.
+   * @param {string[]} props The property identifiers to pick.
    * @returns {Object} Returns the new object.
    */
   function basePick(object, props) {

_basePickBy.js

@@ -1,4 +1,4 @@
-define(['./_baseForIn'], function(baseForIn) {
+define(['./_getAllKeysIn'], function(getAllKeysIn) {
 
   /**
    * The base implementation of  `_.pickBy` without support for iteratee shorthands.
@@ -9,12 +9,19 @@ define(['./_baseForIn'], function(baseForIn) {
    * @returns {Object} Returns the new object.
    */
   function basePickBy(object, predicate) {
-    var result = {};
-    baseForIn(object, function(value, key) {
+    var index = -1,
+        props = getAllKeysIn(object),
+        length = props.length,
+        result = {};
+
+    while (++index < length) {
+      var key = props[index],
+          value = object[key];
+
       if (predicate(value, key)) {
         result[key] = value;
       }
-    });
+    }
     return result;
   }
 

_basePullAll.js

@@ -1,15 +1,44 @@
-define(['./_basePullAllBy'], function(basePullAllBy) {
+define(['./_arrayMap', './_baseIndexOf', './_baseIndexOfWith', './_baseUnary'], function(arrayMap, baseIndexOf, baseIndexOfWith, baseUnary) {
+
+  /** Used for built-in method references. */
+  var arrayProto = Array.prototype;
+
+  /** Built-in value references. */
+  var splice = arrayProto.splice;
 
   /**
-   * The base implementation of `_.pullAll`.
+   * The base implementation of `_.pullAllBy` without support for iteratee
+   * shorthands.
    *
    * @private
    * @param {Array} array The array to modify.
    * @param {Array} values The values to remove.
+   * @param {Function} [iteratee] The iteratee invoked per element.
+   * @param {Function} [comparator] The comparator invoked per element.
    * @returns {Array} Returns `array`.
    */
-  function basePullAll(array, values) {
-    return basePullAllBy(array, values);
+  function basePullAll(array, values, iteratee, comparator) {
+    var indexOf = comparator ? baseIndexOfWith : baseIndexOf,
+        index = -1,
+        length = values.length,
+        seen = array;
+
+    if (iteratee) {
+      seen = arrayMap(array, baseUnary(iteratee));
+    }
+    while (++index < length) {
+      var fromIndex = 0,
+          value = values[index],
+          computed = iteratee ? iteratee(value) : value;
+
+      while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) {
+        if (seen !== array) {
+          splice.call(seen, fromIndex, 1);
+        }
+        splice.call(array, fromIndex, 1);
+      }
+    }
+    return array;
   }
 
   return basePullAll;

_basePullAllBy.js

@@ -1,43 +0,0 @@
-define(['./_arrayMap', './_baseIndexOf'], function(arrayMap, baseIndexOf) {
-
-  /** Used for built-in method references. */
-  var arrayProto = Array.prototype;
-
-  /** Built-in value references. */
-  var splice = arrayProto.splice;
-
-  /**
-   * The base implementation of `_.pullAllBy` without support for iteratee
-   * shorthands.
-   *
-   * @private
-   * @param {Array} array The array to modify.
-   * @param {Array} values The values to remove.
-   * @param {Function} [iteratee] The iteratee invoked per element.
-   * @returns {Array} Returns `array`.
-   */
-  function basePullAllBy(array, values, iteratee) {
-    var index = -1,
-        length = values.length,
-        seen = array;
-
-    if (iteratee) {
-      seen = arrayMap(array, function(value) { return iteratee(value); });
-    }
-    while (++index < length) {
-      var fromIndex = 0,
-          value = values[index],
-          computed = iteratee ? iteratee(value) : value;
-
-      while ((fromIndex = baseIndexOf(seen, computed, fromIndex)) > -1) {
-        if (seen !== array) {
-          splice.call(seen, fromIndex, 1);
-        }
-        splice.call(array, fromIndex, 1);
-      }
-    }
-    return array;
-  }
-
-  return basePullAllBy;
-});

_baseReduce.js

@@ -8,7 +8,8 @@ define([], function() {
    * @param {Array|Object} collection The collection to iterate over.
    * @param {Function} iteratee The function invoked per iteration.
    * @param {*} accumulator The initial value.
-   * @param {boolean} initAccum Specify using the first or last element of `collection` as the initial value.
+   * @param {boolean} initAccum Specify using the first or last element of
+   *  `collection` as the initial value.
    * @param {Function} eachFunc The function to iterate over `collection`.
    * @returns {*} Returns the accumulated value.
    */

_baseRepeat.js

@@ -0,0 +1,38 @@
+define([], function() {
+
+  /** Used as references for various `Number` constants. */
+  var MAX_SAFE_INTEGER = 9007199254740991;
+
+  /* Built-in method references for those with the same name as other `lodash` methods. */
+  var nativeFloor = Math.floor;
+
+  /**
+   * The base implementation of `_.repeat` which doesn't coerce arguments.
+   *
+   * @private
+   * @param {string} string The string to repeat.
+   * @param {number} n The number of times to repeat the string.
+   * @returns {string} Returns the repeated string.
+   */
+  function baseRepeat(string, n) {
+    var result = '';
+    if (!string || n < 1 || n > MAX_SAFE_INTEGER) {
+      return result;
+    }
+    // Leverage the exponentiation by squaring algorithm for a faster repeat.
+    // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.
+    do {
+      if (n % 2) {
+        result += string;
+      }
+      n = nativeFloor(n / 2);
+      if (n) {
+        string += string;
+      }
+    } while (n);
+
+    return result;
+  }
+
+  return baseRepeat;
+});

_baseSet.js

@@ -14,7 +14,7 @@ define(['./_assignValue', './_baseCastPath', './_isIndex', './_isKey', './isObje
    * @returns {Object} Returns `object`.
    */
   function baseSet(object, path, value, customizer) {
-    path = isKey(path, object) ? [path + ''] : baseCastPath(path);
+    path = isKey(path, object) ? [path] : baseCastPath(path);
 
     var index = -1,
         length = path.length,

_baseSome.js

@@ -6,7 +6,8 @@ define(['./_baseEach'], function(baseEach) {
    * @private
    * @param {Array|Object} collection The collection to iterate over.
    * @param {Function} predicate The function invoked per iteration.
-   * @returns {boolean} Returns `true` if any element passes the predicate check, else `false`.
+   * @returns {boolean} Returns `true` if any element passes the predicate check,
+   *  else `false`.
    */
   function baseSome(collection, predicate) {
     var result;

_baseSortBy.js

@@ -1,9 +1,9 @@
 define([], function() {
 
   /**
-   * The base implementation of `_.sortBy` which uses `comparer` to define
-   * the sort order of `array` and replaces criteria objects with their
-   * corresponding values.
+   * The base implementation of `_.sortBy` which uses `comparer` to define the
+   * sort order of `array` and replaces criteria objects with their corresponding
+   * values.
    *
    * @private
    * @param {Array} array The array to sort.

_baseSortedIndexBy.js

@@ -21,7 +21,8 @@ define([], function() {
    * @param {*} value The value to evaluate.
    * @param {Function} iteratee The iteratee invoked per element.
    * @param {boolean} [retHighest] Specify returning the highest qualified index.
-   * @returns {number} Returns the index at which `value` should be inserted into `array`.
+   * @returns {number} Returns the index at which `value` should be inserted
+   *  into `array`.
    */
   function baseSortedIndexBy(array, value, iteratee, retHighest) {
     value = iteratee(value);

_baseSortedUniqBy.js

@@ -15,7 +15,7 @@ define(['./eq'], function(eq) {
         value = array[0],
         computed = iteratee ? iteratee(value) : value,
         seen = computed,
-        resIndex = 0,
+        resIndex = 1,
         result = [value];
 
     while (++index < length) {
@@ -24,7 +24,7 @@ define(['./eq'], function(eq) {
 
       if (!eq(computed, seen)) {
         seen = computed;
-        result[++resIndex] = value;
+        result[resIndex++] = value;
       }
     }
     return result;

_baseSum.js

@@ -4,7 +4,8 @@ define([], function() {
   var undefined;
 
   /**
-   * The base implementation of `_.sum` without support for iteratee shorthands.
+   * The base implementation of `_.sum` and `_.sumBy` without support for
+   * iteratee shorthands.
    *
    * @private
    * @param {Array} array The array to iterate over.

_baseUnset.js

@@ -9,7 +9,7 @@ define(['./_baseCastPath', './has', './_isKey', './last', './_parent'], function
    * @returns {boolean} Returns `true` if the property is deleted, else `false`.
    */
   function baseUnset(object, path) {
-    path = isKey(path, object) ? [path + ''] : baseCastPath(path);
+    path = isKey(path, object) ? [path] : baseCastPath(path);
     object = parent(object, path);
     var key = last(path);
     return (object != null && has(object, key)) ? delete object[key] : true;

_baseUpdate.js

@@ -0,0 +1,18 @@
+define(['./_baseGet', './_baseSet'], function(baseGet, baseSet) {
+
+  /**
+   * The base implementation of `_.update`.
+   *
+   * @private
+   * @param {Object} object The object to query.
+   * @param {Array|string} path The path of the property to update.
+   * @param {Function} updater The function to produce the updated value.
+   * @param {Function} [customizer] The function to customize path creation.
+   * @returns {Object} Returns `object`.
+   */
+  function baseUpdate(object, path, updater, customizer) {
+    return baseSet(object, path, updater(baseGet(object, path)), customizer);
+  }
+
+  return baseUpdate;
+});

_baseZipObject.js

@@ -7,7 +7,7 @@ define([], function() {
    * This base implementation of `_.zipObject` which assigns values using `assignFunc`.
    *
    * @private
-   * @param {Array} props The property names.
+   * @param {Array} props The property identifiers.
    * @param {Array} values The property values.
    * @param {Function} assignFunc The function to assign values.
    * @returns {Object} Returns the new object.
@@ -19,7 +19,8 @@ define([], function() {
         result = {};
 
     while (++index < length) {
-      assignFunc(result, props[index], index < valsLength ? values[index] : undefined);
+      var value = index < valsLength ? values[index] : undefined;
+      assignFunc(result, props[index], value);
     }
     return result;
   }

_cloneArrayBuffer.js

@@ -8,11 +8,8 @@ define(['./_Uint8Array'], function(Uint8Array) {
    * @returns {ArrayBuffer} Returns the cloned array buffer.
    */
   function cloneArrayBuffer(arrayBuffer) {
-    var Ctor = arrayBuffer.constructor,
-        result = new Ctor(arrayBuffer.byteLength),
-        view = new Uint8Array(result);
-
-    view.set(new Uint8Array(arrayBuffer));
+    var result = new arrayBuffer.constructor(arrayBuffer.byteLength);
+    new Uint8Array(result).set(new Uint8Array(arrayBuffer));
     return result;
   }
 

_cloneBuffer.js

@@ -12,9 +12,7 @@ define([], function() {
     if (isDeep) {
       return buffer.slice();
     }
-    var Ctor = buffer.constructor,
-        result = new Ctor(buffer.length);
-
+    var result = new buffer.constructor(buffer.length);
     buffer.copy(result);
     return result;
   }

_cloneDataView.js

@@ -0,0 +1,17 @@
+define(['./_cloneArrayBuffer'], function(cloneArrayBuffer) {
+
+  /**
+   * Creates a clone of `dataView`.
+   *
+   * @private
+   * @param {Object} dataView The data view to clone.
+   * @param {boolean} [isDeep] Specify a deep clone.
+   * @returns {Object} Returns the cloned data view.
+   */
+  function cloneDataView(dataView, isDeep) {
+    var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;
+    return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);
+  }
+
+  return cloneDataView;
+});

_cloneMap.js

@@ -5,11 +5,13 @@ define(['./_addMapEntry', './_arrayReduce', './_mapToArray'], function(addMapEnt
    *
    * @private
    * @param {Object} map The map to clone.
+   * @param {Function} cloneFunc The function to clone values.
+   * @param {boolean} [isDeep] Specify a deep clone.
    * @returns {Object} Returns the cloned map.
    */
-  function cloneMap(map) {
-    var Ctor = map.constructor;
-    return arrayReduce(mapToArray(map), addMapEntry, new Ctor);
+  function cloneMap(map, isDeep, cloneFunc) {
+    var array = isDeep ? cloneFunc(mapToArray(map), true) : mapToArray(map);
+    return arrayReduce(array, addMapEntry, new map.constructor);
   }
 
   return cloneMap;

_cloneRegExp.js

@@ -11,9 +11,7 @@ define([], function() {
    * @returns {Object} Returns the cloned regexp.
    */
   function cloneRegExp(regexp) {
-    var Ctor = regexp.constructor,
-        result = new Ctor(regexp.source, reFlags.exec(regexp));
-
+    var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));
     result.lastIndex = regexp.lastIndex;
     return result;
   }

_cloneSet.js

@@ -5,11 +5,13 @@ define(['./_addSetEntry', './_arrayReduce', './_setToArray'], function(addSetEnt
    *
    * @private
    * @param {Object} set The set to clone.
+   * @param {Function} cloneFunc The function to clone values.
+   * @param {boolean} [isDeep] Specify a deep clone.
    * @returns {Object} Returns the cloned set.
    */
-  function cloneSet(set) {
-    var Ctor = set.constructor;
-    return arrayReduce(setToArray(set), addSetEntry, new Ctor);
+  function cloneSet(set, isDeep, cloneFunc) {
+    var array = isDeep ? cloneFunc(setToArray(set), true) : setToArray(set);
+    return arrayReduce(array, addSetEntry, new set.constructor);
   }
 
   return cloneSet;

_cloneSymbol.js

@@ -5,7 +5,7 @@ define(['./_Symbol'], function(Symbol) {
 
   /** Used to convert symbols to primitives and strings. */
   var symbolProto = Symbol ? Symbol.prototype : undefined,
-      symbolValueOf = Symbol ? symbolProto.valueOf : undefined;
+      symbolValueOf = symbolProto ? symbolProto.valueOf : undefined;
 
   /**
    * Creates a clone of the `symbol` object.
@@ -15,7 +15,7 @@ define(['./_Symbol'], function(Symbol) {
    * @returns {Object} Returns the cloned symbol object.
    */
   function cloneSymbol(symbol) {
-    return Symbol ? Object(symbolValueOf.call(symbol)) : {};
+    return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};
   }
 
   return cloneSymbol;

_cloneTypedArray.js

@@ -9,11 +9,8 @@ define(['./_cloneArrayBuffer'], function(cloneArrayBuffer) {
    * @returns {Object} Returns the cloned typed array.
    */
   function cloneTypedArray(typedArray, isDeep) {
-    var arrayBuffer = typedArray.buffer,
-        buffer = isDeep ? cloneArrayBuffer(arrayBuffer) : arrayBuffer,
-        Ctor = typedArray.constructor;
-
-    return new Ctor(buffer, typedArray.byteOffset, typedArray.length);
+    var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;
+    return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);
   }
 
   return cloneTypedArray;

_compareMultiple.js

@@ -37,7 +37,7 @@ define(['./_compareAscending'], function(compareAscending) {
     // for more details.
     //
     // This also ensures a stable sort in V8 and other engines.
-    // See https://code.google.com/p/v8/issues/detail?id=90 for more details.
+    // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.
     return object.index - other.index;
   }
 

_composeArgs.js

@@ -11,23 +11,28 @@ define([], function() {
    * @param {Array|Object} 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.
    * @returns {Array} Returns the new array of composed arguments.
    */
-  function composeArgs(args, partials, holders) {
-    var holdersLength = holders.length,
-        argsIndex = -1,
-        argsLength = nativeMax(args.length - holdersLength, 0),
+  function composeArgs(args, partials, holders, isCurried) {
+    var argsIndex = -1,
+        argsLength = args.length,
+        holdersLength = holders.length,
         leftIndex = -1,
         leftLength = partials.length,
-        result = Array(leftLength + argsLength);
+        rangeLength = nativeMax(argsLength - holdersLength, 0),
+        result = Array(leftLength + rangeLength),
+        isUncurried = !isCurried;
 
     while (++leftIndex < leftLength) {
       result[leftIndex] = partials[leftIndex];
     }
     while (++argsIndex < holdersLength) {
-      result[holders[argsIndex]] = args[argsIndex];
+      if (isUncurried || argsIndex < argsLength) {
+        result[holders[argsIndex]] = args[argsIndex];
+      }
     }
-    while (argsLength--) {
+    while (rangeLength--) {
       result[leftIndex++] = args[argsIndex++];
     }
     return result;

_composeArgsRight.js

@@ -11,18 +11,21 @@ define([], function() {
    * @param {Array|Object} 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.
    * @returns {Array} Returns the new array of composed arguments.
    */
-  function composeArgsRight(args, partials, holders) {
-    var holdersIndex = -1,
+  function composeArgsRight(args, partials, holders, isCurried) {
+    var argsIndex = -1,
+        argsLength = args.length,
+        holdersIndex = -1,
         holdersLength = holders.length,
-        argsIndex = -1,
-        argsLength = nativeMax(args.length - holdersLength, 0),
         rightIndex = -1,
         rightLength = partials.length,
-        result = Array(argsLength + rightLength);
+        rangeLength = nativeMax(argsLength - holdersLength, 0),
+        result = Array(rangeLength + rightLength),
+        isUncurried = !isCurried;
 
-    while (++argsIndex < argsLength) {
+    while (++argsIndex < rangeLength) {
       result[argsIndex] = args[argsIndex];
     }
     var offset = argsIndex;
@@ -30,7 +33,9 @@ define([], function() {
       result[offset + rightIndex] = partials[rightIndex];
     }
     while (++holdersIndex < holdersLength) {
-      result[offset + holders[holdersIndex]] = args[argsIndex++];
+      if (isUncurried || argsIndex < argsLength) {
+        result[offset + holders[holdersIndex]] = args[argsIndex++];
+      }
     }
     return result;
   }

_copyObject.js

@@ -5,7 +5,7 @@ define(['./_copyObjectWith'], function(copyObjectWith) {
    *
    * @private
    * @param {Object} source The object to copy properties from.
-   * @param {Array} props The property names to copy.
+   * @param {Array} props The property identifiers to copy.
    * @param {Object} [object={}] The object to copy properties to.
    * @returns {Object} Returns `object`.
    */

_copyObjectWith.js

@@ -6,7 +6,7 @@ define(['./_assignValue'], function(assignValue) {
    *
    * @private
    * @param {Object} source The object to copy properties from.
-   * @param {Array} props The property names to copy.
+   * @param {Array} props The property identifiers to copy.
    * @param {Object} [object={}] The object to copy properties to.
    * @param {Function} [customizer] The function to customize copied values.
    * @returns {Object} Returns `object`.

_countHolders.js

@@ -0,0 +1,24 @@
+define([], function() {
+
+  /**
+   * Gets the number of `placeholder` occurrences in `array`.
+   *
+   * @private
+   * @param {Array} array The array to inspect.
+   * @param {*} placeholder The placeholder to search for.
+   * @returns {number} Returns the placeholder count.
+   */
+  function countHolders(array, placeholder) {
+    var length = array.length,
+        result = 0;
+
+    while (length--) {
+      if (array[length] === placeholder) {
+        result++;
+      }
+    }
+    return result;
+  }
+
+  return countHolders;
+});

_createBaseFor.js

@@ -1,7 +1,7 @@
 define([], function() {
 
   /**
-   * Creates a base function for methods like `_.forIn`.
+   * Creates a base function for methods like `_.forIn` and `_.forOwn`.
    *
    * @private
    * @param {boolean} [fromRight] Specify iterating from right to left.

_createBaseWrapper.js

@@ -9,7 +9,8 @@ define(['./_createCtorWrapper', './_root'], function(createCtorWrapper, root) {
    *
    * @private
    * @param {Function} func The function to wrap.
-   * @param {number} bitmask The bitmask of wrapper flags. See `createWrapper` for more details.
+   * @param {number} bitmask The bitmask of wrapper flags. See `createWrapper`
+   *  for more details.
    * @param {*} [thisArg] The `this` binding of `func`.
    * @returns {Function} Returns the new wrapped function.
    */

_createCurryWrapper.js

@@ -1,4 +1,4 @@
-define(['./_apply', './_createCtorWrapper', './_createHybridWrapper', './_createRecurryWrapper', './_replaceHolders', './_root'], function(apply, createCtorWrapper, createHybridWrapper, createRecurryWrapper, replaceHolders, root) {
+define(['./_apply', './_createCtorWrapper', './_createHybridWrapper', './_createRecurryWrapper', './_getPlaceholder', './_replaceHolders', './_root'], function(apply, createCtorWrapper, createHybridWrapper, createRecurryWrapper, getPlaceholder, replaceHolders, root) {
 
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
@@ -8,7 +8,8 @@ define(['./_apply', './_createCtorWrapper', './_createHybridWrapper', './_create
    *
    * @private
    * @param {Function} func The function to wrap.
-   * @param {number} bitmask The bitmask of wrapper flags. See `createWrapper` for more details.
+   * @param {number} bitmask The bitmask of wrapper flags. See `createWrapper`
+   *  for more details.
    * @param {number} arity The arity of `func`.
    * @returns {Function} Returns the new wrapped function.
    */
@@ -17,10 +18,9 @@ define(['./_apply', './_createCtorWrapper', './_createHybridWrapper', './_create
 
     function wrapper() {
       var length = arguments.length,
-          index = length,
           args = Array(length),
-          fn = (this && this !== root && this instanceof wrapper) ? Ctor : func,
-          placeholder = wrapper.placeholder;
+          index = length,
+          placeholder = getPlaceholder(wrapper);
 
       while (index--) {
         args[index] = arguments[index];
@@ -30,9 +30,13 @@ define(['./_apply', './_createCtorWrapper', './_createHybridWrapper', './_create
         : replaceHolders(args, placeholder);
 
       length -= holders.length;
-      return length < arity
-        ? createRecurryWrapper(func, bitmask, createHybridWrapper, placeholder, undefined, args, holders, undefined, undefined, arity - length)
-        : apply(fn, this, args);
+      if (length < arity) {
+        return createRecurryWrapper(
+          func, bitmask, createHybridWrapper, wrapper.placeholder, undefined,
+          args, holders, undefined, undefined, arity - length);
+      }
+      var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
+      return apply(fn, this, args);
     }
     return wrapper;
   }

_createFlow.js

@@ -3,18 +3,18 @@ define(['./_LodashWrapper', './_baseFlatten', './_getData', './_getFuncName', '.
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
 
-  /** Used to compose bitmasks for wrapper metadata. */
-  var CURRY_FLAG = 8,
-      PARTIAL_FLAG = 32,
-      ARY_FLAG = 128,
-      REARG_FLAG = 256;
-
   /** Used as the size to enable large array optimizations. */
   var LARGE_ARRAY_SIZE = 200;
 
   /** Used as the `TypeError` message for "Functions" methods. */
   var FUNC_ERROR_TEXT = 'Expected a function';
 
+  /** Used to compose bitmasks for wrapper metadata. */
+  var CURRY_FLAG = 8,
+      PARTIAL_FLAG = 32,
+      ARY_FLAG = 128,
+      REARG_FLAG = 256;
+
   /**
    * Creates a `_.flow` or `_.flowRight` function.
    *
@@ -55,7 +55,9 @@ define(['./_LodashWrapper', './_baseFlatten', './_getData', './_getFuncName', '.
             ) {
           wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);
         } else {
-          wrapper = (func.length == 1 && isLaziable(func)) ? wrapper[funcName]() : wrapper.thru(func);
+          wrapper = (func.length == 1 && isLaziable(func))
+            ? wrapper[funcName]()
+            : wrapper.thru(func);
         }
       }
       return function() {

_createHybridWrapper.js

@@ -1,4 +1,4 @@
-define(['./_composeArgs', './_composeArgsRight', './_createCtorWrapper', './_createRecurryWrapper', './_reorder', './_replaceHolders', './_root'], function(composeArgs, composeArgsRight, createCtorWrapper, createRecurryWrapper, reorder, replaceHolders, root) {
+define(['./_composeArgs', './_composeArgsRight', './_countHolders', './_createCtorWrapper', './_createRecurryWrapper', './_getPlaceholder', './_reorder', './_replaceHolders', './_root'], function(composeArgs, composeArgsRight, countHolders, createCtorWrapper, createRecurryWrapper, getPlaceholder, reorder, replaceHolders, root) {
 
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
@@ -17,11 +17,14 @@ define(['./_composeArgs', './_composeArgsRight', './_createCtorWrapper', './_cre
    *
    * @private
    * @param {Function|string} func The function or method name to wrap.
-   * @param {number} bitmask The bitmask of wrapper flags. See `createWrapper` for more details.
+   * @param {number} bitmask The bitmask of wrapper flags. See `createWrapper`
+   *  for more details.
    * @param {*} [thisArg] The `this` binding of `func`.
-   * @param {Array} [partials] The arguments to prepend to those provided to the new function.
+   * @param {Array} [partials] The arguments to prepend to those provided to
+   *  the new function.
    * @param {Array} [holders] The `partials` placeholder indexes.
-   * @param {Array} [partialsRight] The arguments to append to those provided to the new function.
+   * @param {Array} [partialsRight] The arguments to append to those provided
+   *  to the new function.
    * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.
    * @param {Array} [argPos] The argument positions of the new function.
    * @param {number} [ary] The arity cap of `func`.
@@ -32,8 +35,7 @@ define(['./_composeArgs', './_composeArgsRight', './_createCtorWrapper', './_cre
     var isAry = bitmask & ARY_FLAG,
         isBind = bitmask & BIND_FLAG,
         isBindKey = bitmask & BIND_KEY_FLAG,
-        isCurry = bitmask & CURRY_FLAG,
-        isCurryRight = bitmask & CURRY_RIGHT_FLAG,
+        isCurried = bitmask & (CURRY_FLAG | CURRY_RIGHT_FLAG),
         isFlip = bitmask & FLIP_FLAG,
         Ctor = isBindKey ? undefined : createCtorWrapper(func);
 
@@ -45,33 +47,34 @@ define(['./_composeArgs', './_composeArgsRight', './_createCtorWrapper', './_cre
       while (index--) {
         args[index] = arguments[index];
       }
+      if (isCurried) {
+        var placeholder = getPlaceholder(wrapper),
+            holdersCount = countHolders(args, placeholder);
+      }
       if (partials) {
-        args = composeArgs(args, partials, holders);
+        args = composeArgs(args, partials, holders, isCurried);
       }
       if (partialsRight) {
-        args = composeArgsRight(args, partialsRight, holdersRight);
+        args = composeArgsRight(args, partialsRight, holdersRight, isCurried);
       }
-      if (isCurry || isCurryRight) {
-        var placeholder = wrapper.placeholder,
-            argsHolders = replaceHolders(args, placeholder);
-
-        length -= argsHolders.length;
-        if (length < arity) {
-          return createRecurryWrapper(
-            func, bitmask, createHybridWrapper, placeholder, thisArg, args,
-            argsHolders, argPos, ary, arity - length
-          );
-        }
+      length -= holdersCount;
+      if (isCurried && length < arity) {
+        var newHolders = replaceHolders(args, placeholder);
+        return createRecurryWrapper(
+          func, bitmask, createHybridWrapper, wrapper.placeholder, thisArg,
+          args, newHolders, argPos, ary, arity - length
+        );
       }
       var thisBinding = isBind ? thisArg : this,
           fn = isBindKey ? thisBinding[func] : func;
 
+      length = args.length;
       if (argPos) {
         args = reorder(args, argPos);
-      } else if (isFlip && args.length > 1) {
+      } else if (isFlip && length > 1) {
         args.reverse();
       }
-      if (isAry && ary < args.length) {
+      if (isAry && ary < length) {
         args.length = ary;
       }
       if (this && this !== root && this instanceof wrapper) {

_createMathOperation.js

@@ -0,0 +1,30 @@
+define([], function() {
+
+  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
+  var undefined;
+
+  /**
+   * Creates a function that performs a mathematical operation on two values.
+   *
+   * @private
+   * @param {Function} operator The function to perform the operation.
+   * @returns {Function} Returns the new mathematical operation function.
+   */
+  function createMathOperation(operator) {
+    return function(value, other) {
+      var result;
+      if (value === undefined && other === undefined) {
+        return 0;
+      }
+      if (value !== undefined) {
+        result = value;
+      }
+      if (other !== undefined) {
+        result = result === undefined ? other : operator(result, other);
+      }
+      return result;
+    };
+  }
+
+  return createMathOperation;
+});

_createPadding.js

@@ -1,4 +1,4 @@
-define(['./repeat', './_stringSize', './_stringToArray', './toInteger'], function(repeat, stringSize, stringToArray, toInteger) {
+define(['./_baseRepeat', './_stringSize', './_stringToArray'], function(baseRepeat, stringSize, stringToArray) {
 
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
@@ -23,25 +23,21 @@ define(['./repeat', './_stringSize', './_stringToArray', './toInteger'], functio
    * is truncated if the number of characters exceeds `length`.
    *
    * @private
-   * @param {string} string The string to create padding for.
-   * @param {number} [length=0] The padding length.
+   * @param {number} length The padding length.
    * @param {string} [chars=' '] The string used as padding.
    * @returns {string} Returns the padding for `string`.
    */
-  function createPadding(string, length, chars) {
-    length = toInteger(length);
-
-    var strLength = stringSize(string);
-    if (!length || strLength >= length) {
-      return '';
-    }
-    var padLength = length - strLength;
+  function createPadding(length, chars) {
     chars = chars === undefined ? ' ' : (chars + '');
 
-    var result = repeat(chars, nativeCeil(padLength / stringSize(chars)));
+    var charsLength = chars.length;
+    if (charsLength < 2) {
+      return charsLength ? baseRepeat(chars, length) : chars;
+    }
+    var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));
     return reHasComplexSymbol.test(chars)
-      ? stringToArray(result).slice(0, padLength).join('')
-      : result.slice(0, padLength);
+      ? stringToArray(result).slice(0, length).join('')
+      : result.slice(0, length);
   }
 
   return createPadding;

_createPartialWrapper.js

@@ -10,9 +10,11 @@ define(['./_apply', './_createCtorWrapper', './_root'], function(apply, createCt
    *
    * @private
    * @param {Function} func The function to wrap.
-   * @param {number} bitmask The bitmask of wrapper flags. See `createWrapper` for more details.
+   * @param {number} bitmask The bitmask of wrapper flags. See `createWrapper`
+   *  for more details.
    * @param {*} thisArg The `this` binding of `func`.
-   * @param {Array} partials The arguments to prepend to those provided to the new function.
+   * @param {Array} partials The arguments to prepend to those provided to
+   *  the new function.
    * @returns {Function} Returns the new wrapped function.
    */
   function createPartialWrapper(func, bitmask, thisArg, partials) {

_createRecurryWrapper.js

@@ -16,11 +16,13 @@ define(['./_copyArray', './_isLaziable', './_setData'], function(copyArray, isLa
    *
    * @private
    * @param {Function} func The function to wrap.
-   * @param {number} bitmask The bitmask of wrapper flags. See `createWrapper` for more details.
+   * @param {number} bitmask The bitmask of wrapper flags. See `createWrapper`
+   *  for more details.
    * @param {Function} wrapFunc The function to create the `func` wrapper.
-   * @param {*} placeholder The placeholder to replace.
+   * @param {*} placeholder The placeholder value.
    * @param {*} [thisArg] The `this` binding of `func`.
-   * @param {Array} [partials] The arguments to prepend to those provided to the new function.
+   * @param {Array} [partials] The arguments to prepend to those provided to
+   *  the new function.
    * @param {Array} [holders] The `partials` placeholder indexes.
    * @param {Array} [argPos] The argument positions of the new function.
    * @param {number} [ary] The arity cap of `func`.
@@ -30,7 +32,7 @@ define(['./_copyArray', './_isLaziable', './_setData'], function(copyArray, isLa
   function createRecurryWrapper(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {
     var isCurry = bitmask & CURRY_FLAG,
         newArgPos = argPos ? copyArray(argPos) : undefined,
-        newsHolders = isCurry ? holders : undefined,
+        newHolders = isCurry ? holders : undefined,
         newHoldersRight = isCurry ? undefined : holders,
         newPartials = isCurry ? partials : undefined,
         newPartialsRight = isCurry ? undefined : partials;
@@ -42,7 +44,7 @@ define(['./_copyArray', './_isLaziable', './_setData'], function(copyArray, isLa
       bitmask &= ~(BIND_FLAG | BIND_KEY_FLAG);
     }
     var newData = [
-      func, bitmask, thisArg, newPartials, newsHolders, newPartialsRight,
+      func, bitmask, thisArg, newPartials, newHolders, newPartialsRight,
       newHoldersRight, newArgPos, ary, arity
     ];
 

_createWrapper.js

@@ -3,6 +3,9 @@ define(['./_baseSetData', './_createBaseWrapper', './_createCurryWrapper', './_c
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
 
+  /** Used as the `TypeError` message for "Functions" methods. */
+  var FUNC_ERROR_TEXT = 'Expected a function';
+
   /** Used to compose bitmasks for wrapper metadata. */
   var BIND_FLAG = 1,
       BIND_KEY_FLAG = 2,
@@ -11,9 +14,6 @@ define(['./_baseSetData', './_createBaseWrapper', './_createCurryWrapper', './_c
       PARTIAL_FLAG = 32,
       PARTIAL_RIGHT_FLAG = 64;
 
-  /** Used as the `TypeError` message for "Functions" methods. */
-  var FUNC_ERROR_TEXT = 'Expected a function';
-
   /* Built-in method references for those with the same name as other `lodash` methods. */
   var nativeMax = Math.max;
 

_equalArrays.js

@@ -15,9 +15,10 @@ define(['./_arraySome'], function(arraySome) {
    * @param {Array} array The array to compare.
    * @param {Array} other The other array to compare.
    * @param {Function} equalFunc The function to determine equivalents of values.
-   * @param {Function} [customizer] The function to customize comparisons.
-   * @param {number} [bitmask] The bitmask of comparison flags. See `baseIsEqual` for more details.
-   * @param {Object} [stack] Tracks traversed `array` and `other` objects.
+   * @param {Function} customizer The function to customize comparisons.
+   * @param {number} bitmask The bitmask of comparison flags. See `baseIsEqual`
+   *  for more details.
+   * @param {Object} stack Tracks traversed `array` and `other` objects.
    * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
    */
   function equalArrays(array, other, equalFunc, customizer, bitmask, stack) {
@@ -58,12 +59,16 @@ define(['./_arraySome'], function(arraySome) {
       // Recursively compare arrays (susceptible to call stack limits).
       if (isUnordered) {
         if (!arraySome(other, function(othValue) {
-              return arrValue === othValue || equalFunc(arrValue, othValue, customizer, bitmask, stack);
+              return arrValue === othValue ||
+                equalFunc(arrValue, othValue, customizer, bitmask, stack);
             })) {
           result = false;
           break;
         }
-      } else if (!(arrValue === othValue || equalFunc(arrValue, othValue, customizer, bitmask, stack))) {
+      } else if (!(
+            arrValue === othValue ||
+              equalFunc(arrValue, othValue, customizer, bitmask, stack)
+          )) {
         result = false;
         break;
       }

_equalByTag.js

@@ -1,4 +1,4 @@
-define(['./_Symbol', './_Uint8Array', './_mapToArray', './_setToArray'], function(Symbol, Uint8Array, mapToArray, setToArray) {
+define(['./_Symbol', './_Uint8Array', './_equalArrays', './_mapToArray', './_setToArray'], function(Symbol, Uint8Array, equalArrays, mapToArray, setToArray) {
 
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
@@ -18,11 +18,12 @@ define(['./_Symbol', './_Uint8Array', './_mapToArray', './_setToArray'], functio
       stringTag = '[object String]',
       symbolTag = '[object Symbol]';
 
-  var arrayBufferTag = '[object ArrayBuffer]';
+  var arrayBufferTag = '[object ArrayBuffer]',
+      dataViewTag = '[object DataView]';
 
   /** Used to convert symbols to primitives and strings. */
   var symbolProto = Symbol ? Symbol.prototype : undefined,
-      symbolValueOf = Symbol ? symbolProto.valueOf : undefined;
+      symbolValueOf = symbolProto ? symbolProto.valueOf : undefined;
 
   /**
    * A specialized version of `baseIsEqualDeep` for comparing objects of
@@ -36,12 +37,22 @@ define(['./_Symbol', './_Uint8Array', './_mapToArray', './_setToArray'], functio
    * @param {Object} other The other object to compare.
    * @param {string} tag The `toStringTag` of the objects to compare.
    * @param {Function} equalFunc The function to determine equivalents of values.
-   * @param {Function} [customizer] The function to customize comparisons.
-   * @param {number} [bitmask] The bitmask of comparison flags. See `baseIsEqual` for more details.
+   * @param {Function} customizer The function to customize comparisons.
+   * @param {number} bitmask The bitmask of comparison flags. See `baseIsEqual`
+   *  for more details.
+   * @param {Object} stack Tracks traversed `object` and `other` objects.
    * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
    */
-  function equalByTag(object, other, tag, equalFunc, customizer, bitmask) {
+  function equalByTag(object, other, tag, equalFunc, customizer, bitmask, stack) {
     switch (tag) {
+      case dataViewTag:
+        if ((object.byteLength != other.byteLength) ||
+            (object.byteOffset != other.byteOffset)) {
+          return false;
+        }
+        object = object.buffer;
+        other = other.buffer;
+
       case arrayBufferTag:
         if ((object.byteLength != other.byteLength) ||
             !equalFunc(new Uint8Array(object), new Uint8Array(other))) {
@@ -51,8 +62,9 @@ define(['./_Symbol', './_Uint8Array', './_mapToArray', './_setToArray'], functio
 
       case boolTag:
       case dateTag:
-        // Coerce dates and booleans to numbers, dates to milliseconds and booleans
-        // to `1` or `0` treating invalid dates coerced to `NaN` as not equal.
+        // Coerce dates and booleans to numbers, dates to milliseconds and
+        // booleans to `1` or `0` treating invalid dates coerced to `NaN` as
+        // not equal.
         return +object == +other;
 
       case errorTag:
@@ -64,8 +76,8 @@ define(['./_Symbol', './_Uint8Array', './_mapToArray', './_setToArray'], functio
 
       case regexpTag:
       case stringTag:
-        // Coerce regexes to strings and treat strings primitives and string
-        // objects as equal. See https://es5.github.io/#x15.10.6.4 for more details.
+        // Coerce regexes to strings and treat strings, primitives and objects,
+        // as equal. See https://es5.github.io/#x15.10.6.4 for more details.
         return object == (other + '');
 
       case mapTag:
@@ -75,12 +87,24 @@ define(['./_Symbol', './_Uint8Array', './_mapToArray', './_setToArray'], functio
         var isPartial = bitmask & PARTIAL_COMPARE_FLAG;
         convert || (convert = setToArray);
 
+        if (object.size != other.size && !isPartial) {
+          return false;
+        }
+        // Assume cyclic values are equal.
+        var stacked = stack.get(object);
+        if (stacked) {
+          return stacked == other;
+        }
+        bitmask |= UNORDERED_COMPARE_FLAG;
+        stack.set(object, other);
+
         // Recursively compare objects (susceptible to call stack limits).
-        return (isPartial || object.size == other.size) &&
-          equalFunc(convert(object), convert(other), customizer, bitmask | UNORDERED_COMPARE_FLAG);
+        return equalArrays(convert(object), convert(other), equalFunc, customizer, bitmask, stack);
 
       case symbolTag:
-        return !!Symbol && (symbolValueOf.call(object) == symbolValueOf.call(other));
+        if (symbolValueOf) {
+          return symbolValueOf.call(object) == symbolValueOf.call(other);
+        }
     }
     return false;
   }

_equalObjects.js

@@ -14,9 +14,10 @@ define(['./_baseHas', './keys'], function(baseHas, keys) {
    * @param {Object} object The object to compare.
    * @param {Object} other The other object to compare.
    * @param {Function} equalFunc The function to determine equivalents of values.
-   * @param {Function} [customizer] The function to customize comparisons.
-   * @param {number} [bitmask] The bitmask of comparison flags. See `baseIsEqual` for more details.
-   * @param {Object} [stack] Tracks traversed `object` and `other` objects.
+   * @param {Function} customizer The function to customize comparisons.
+   * @param {number} bitmask The bitmask of comparison flags. See `baseIsEqual`
+   *  for more details.
+   * @param {Object} stack Tracks traversed `object` and `other` objects.
    * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
    */
   function equalObjects(object, other, equalFunc, customizer, bitmask, stack) {

_getAllKeys.js

@@ -0,0 +1,15 @@
+define(['./_baseGetAllKeys', './_getSymbols', './keys'], function(baseGetAllKeys, getSymbols, keys) {
+
+  /**
+   * Creates an array of own enumerable property names and symbols of `object`.
+   *
+   * @private
+   * @param {Object} object The object to query.
+   * @returns {Array} Returns the array of property names and symbols.
+   */
+  function getAllKeys(object) {
+    return baseGetAllKeys(object, keys, getSymbols);
+  }
+
+  return getAllKeys;
+});

_getAllKeysIn.js

@@ -0,0 +1,16 @@
+define(['./_baseGetAllKeys', './_getSymbolsIn', './keysIn'], function(baseGetAllKeys, getSymbolsIn, keysIn) {
+
+  /**
+   * Creates an array of own and inherited enumerable property names and
+   * symbols of `object`.
+   *
+   * @private
+   * @param {Object} object The object to query.
+   * @returns {Array} Returns the array of property names and symbols.
+   */
+  function getAllKeysIn(object) {
+    return baseGetAllKeys(object, keysIn, getSymbolsIn);
+  }
+
+  return getAllKeysIn;
+});

_getLength.js

@@ -3,8 +3,9 @@ define(['./_baseProperty'], function(baseProperty) {
   /**
    * Gets the "length" property value of `object`.
    *
-   * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)
-   * that affects Safari on at least iOS 8.1-8.3 ARM64.
+   * **Note:** This function is used to avoid a
+   * [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792) that affects
+   * Safari on at least iOS 8.1-8.3 ARM64.
    *
    * @private
    * @param {Object} object The object to query.

_getNative.js

@@ -12,7 +12,7 @@ define(['./isNative'], function(isNative) {
    * @returns {*} Returns the function if it's native, else `undefined`.
    */
   function getNative(object, key) {
-    var value = object == null ? undefined : object[key];
+    var value = object[key];
     return isNative(value) ? value : undefined;
   }
 

_getPlaceholder.js

@@ -0,0 +1,16 @@
+define([], function() {
+
+  /**
+   * 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 = func;
+    return object.placeholder;
+  }
+
+  return getPlaceholder;
+});

_getPrototype.js

@@ -0,0 +1,18 @@
+define([], function() {
+
+  /* Built-in method references for those with the same name as other `lodash` methods. */
+  var nativeGetPrototype = Object.getPrototypeOf;
+
+  /**
+   * Gets the `[[Prototype]]` of `value`.
+   *
+   * @private
+   * @param {*} value The value to query.
+   * @returns {null|Object} Returns the `[[Prototype]]`.
+   */
+  function getPrototype(value) {
+    return nativeGetPrototype(Object(value));
+  }
+
+  return getPrototype;
+});

_getSymbols.js

@@ -4,15 +4,24 @@ define([], function() {
   var getOwnPropertySymbols = Object.getOwnPropertySymbols;
 
   /**
-   * Creates an array of the own symbol properties of `object`.
+   * Creates an array of the own enumerable symbol properties of `object`.
    *
    * @private
    * @param {Object} object The object to query.
    * @returns {Array} Returns the array of symbols.
    */
-  var getSymbols = getOwnPropertySymbols || function() {
-    return [];
-  };
+  function getSymbols(object) {
+    // Coerce `object` to an object to avoid non-object errors in V8.
+    // See https://bugs.chromium.org/p/v8/issues/detail?id=3443 for more details.
+    return getOwnPropertySymbols(Object(object));
+  }
+
+  // Fallback for IE < 11.
+  if (!getOwnPropertySymbols) {
+    getSymbols = function() {
+      return [];
+    };
+  }
 
   return getSymbols;
 });

_getSymbolsIn.js

@@ -0,0 +1,24 @@
+define(['./_arrayPush', './_getPrototype', './_getSymbols'], function(arrayPush, getPrototype, getSymbols) {
+
+  /** Built-in value references. */
+  var getOwnPropertySymbols = Object.getOwnPropertySymbols;
+
+  /**
+   * Creates an array of the own and inherited enumerable symbol properties
+   * of `object`.
+   *
+   * @private
+   * @param {Object} object The object to query.
+   * @returns {Array} Returns the array of symbols.
+   */
+  var getSymbolsIn = !getOwnPropertySymbols ? getSymbols : function(object) {
+    var result = [];
+    while (object) {
+      arrayPush(result, getSymbols(object));
+      object = getPrototype(object);
+    }
+    return result;
+  };
+
+  return getSymbolsIn;
+});

_getTag.js

@@ -1,11 +1,14 @@
-define(['./_Map', './_Set', './_WeakMap'], function(Map, Set, WeakMap) {
+define(['./_DataView', './_Map', './_Promise', './_Set', './_WeakMap'], function(DataView, Map, Promise, Set, WeakMap) {
 
   /** `Object#toString` result references. */
   var mapTag = '[object Map]',
       objectTag = '[object Object]',
+      promiseTag = '[object Promise]',
       setTag = '[object Set]',
       weakMapTag = '[object WeakMap]';
 
+  var dataViewTag = '[object DataView]';
+
   /** Used for built-in method references. */
   var objectProto = Object.prototype;
 
@@ -19,7 +22,9 @@ define(['./_Map', './_Set', './_WeakMap'], function(Map, Set, WeakMap) {
   var objectToString = objectProto.toString;
 
   /** Used to detect maps, sets, and weakmaps. */
-  var mapCtorString = Map ? funcToString.call(Map) : '',
+  var dataViewCtorString = DataView ? (DataView + '') : '',
+      mapCtorString = Map ? funcToString.call(Map) : '',
+      promiseCtorString = Promise ? funcToString.call(Promise) : '',
       setCtorString = Set ? funcToString.call(Set) : '',
       weakMapCtorString = WeakMap ? funcToString.call(WeakMap) : '';
 
@@ -34,8 +39,11 @@ define(['./_Map', './_Set', './_WeakMap'], function(Map, Set, WeakMap) {
     return objectToString.call(value);
   }
 
-  // Fallback for IE 11 providing `toStringTag` values for maps, sets, and weakmaps.
-  if ((Map && getTag(new Map) != mapTag) ||
+  // Fallback for data views, maps, sets, and weak maps in IE 11,
+  // for data views in Edge, and promises in Node.js.
+  if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
+      (Map && getTag(new Map) != mapTag) ||
+      (Promise && getTag(Promise.resolve()) != promiseTag) ||
       (Set && getTag(new Set) != setTag) ||
       (WeakMap && getTag(new WeakMap) != weakMapTag)) {
     getTag = function(value) {
@@ -45,7 +53,9 @@ define(['./_Map', './_Set', './_WeakMap'], function(Map, Set, WeakMap) {
 
       if (ctorString) {
         switch (ctorString) {
+          case dataViewCtorString: return dataViewTag;
           case mapCtorString: return mapTag;
+          case promiseCtorString: return promiseTag;
           case setCtorString: return setTag;
           case weakMapCtorString: return weakMapTag;
         }

_hasPath.js

@@ -1,4 +1,4 @@
-define(['./_baseCastPath', './isArguments', './isArray', './_isIndex', './_isKey', './isLength', './isString', './last', './_parent'], function(baseCastPath, isArguments, isArray, isIndex, isKey, isLength, isString, last, parent) {
+define(['./_baseCastPath', './isArguments', './isArray', './_isIndex', './_isKey', './isLength', './isString'], function(baseCastPath, isArguments, isArray, isIndex, isKey, isLength, isString) {
 
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
@@ -19,10 +19,16 @@ define(['./_baseCastPath', './isArguments', './isArray', './_isIndex', './_isKey
     var result = hasFunc(object, path);
     if (!result && !isKey(path)) {
       path = baseCastPath(path);
-      object = parent(object, path);
-      if (object != null) {
-        path = last(path);
-        result = hasFunc(object, path);
+
+      var index = -1,
+          length = path.length;
+
+      while (object != null && ++index < length) {
+        var key = path[index];
+        if (!(result = hasFunc(object, key))) {
+          break;
+        }
+        object = object[key];
       }
     }
     var length = object ? object.length : undefined;

_initCloneByTag.js

@@ -1,4 +1,4 @@
-define(['./_cloneArrayBuffer', './_cloneMap', './_cloneRegExp', './_cloneSet', './_cloneSymbol', './_cloneTypedArray'], function(cloneArrayBuffer, cloneMap, cloneRegExp, cloneSet, cloneSymbol, cloneTypedArray) {
+define(['./_cloneArrayBuffer', './_cloneDataView', './_cloneMap', './_cloneRegExp', './_cloneSet', './_cloneSymbol', './_cloneTypedArray'], function(cloneArrayBuffer, cloneDataView, cloneMap, cloneRegExp, cloneSet, cloneSymbol, cloneTypedArray) {
 
   /** `Object#toString` result references. */
   var boolTag = '[object Boolean]',
@@ -11,6 +11,7 @@ define(['./_cloneArrayBuffer', './_cloneMap', './_cloneRegExp', './_cloneSet', '
       symbolTag = '[object Symbol]';
 
   var arrayBufferTag = '[object ArrayBuffer]',
+      dataViewTag = '[object DataView]',
       float32Tag = '[object Float32Array]',
       float64Tag = '[object Float64Array]',
       int8Tag = '[object Int8Array]',
@@ -30,10 +31,11 @@ define(['./_cloneArrayBuffer', './_cloneMap', './_cloneRegExp', './_cloneSet', '
    * @private
    * @param {Object} object The object to clone.
    * @param {string} tag The `toStringTag` of the object to clone.
+   * @param {Function} cloneFunc The function to clone values.
    * @param {boolean} [isDeep] Specify a deep clone.
    * @returns {Object} Returns the initialized clone.
    */
-  function initCloneByTag(object, tag, isDeep) {
+  function initCloneByTag(object, tag, cloneFunc, isDeep) {
     var Ctor = object.constructor;
     switch (tag) {
       case arrayBufferTag:
@@ -43,13 +45,16 @@ define(['./_cloneArrayBuffer', './_cloneMap', './_cloneRegExp', './_cloneSet', '
       case dateTag:
         return new Ctor(+object);
 
+      case dataViewTag:
+        return cloneDataView(object, isDeep);
+
       case float32Tag: case float64Tag:
       case int8Tag: case int16Tag: case int32Tag:
       case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:
         return cloneTypedArray(object, isDeep);
 
       case mapTag:
-        return cloneMap(object);
+        return cloneMap(object, isDeep, cloneFunc);
 
       case numberTag:
       case stringTag:
@@ -59,7 +64,7 @@ define(['./_cloneArrayBuffer', './_cloneMap', './_cloneRegExp', './_cloneSet', '
         return cloneRegExp(object);
 
       case setTag:
-        return cloneSet(object);
+        return cloneSet(object, isDeep, cloneFunc);
 
       case symbolTag:
         return cloneSymbol(object);

_initCloneObject.js

@@ -1,7 +1,4 @@
-define(['./_baseCreate', './isFunction', './_isPrototype'], function(baseCreate, isFunction, isPrototype) {
-
-  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
-  var undefined;
+define(['./_baseCreate', './_getPrototype', './_isPrototype'], function(baseCreate, getPrototype, isPrototype) {
 
   /**
    * Initializes an object clone.
@@ -11,11 +8,9 @@ define(['./_baseCreate', './isFunction', './_isPrototype'], function(baseCreate,
    * @returns {Object} Returns the initialized clone.
    */
   function initCloneObject(object) {
-    if (isPrototype(object)) {
-      return {};
-    }
-    var Ctor = object.constructor;
-    return baseCreate(isFunction(Ctor) ? Ctor.prototype : undefined);
+    return (typeof object.constructor == 'function' && !isPrototype(object))
+      ? baseCreate(getPrototype(object))
+      : {};
   }
 
   return initCloneObject;

_isIterateeCall.js

@@ -7,7 +7,8 @@ define(['./eq', './isArrayLike', './_isIndex', './isObject'], function(eq, isArr
    * @param {*} value The potential iteratee value argument.
    * @param {*} index The potential iteratee index or key argument.
    * @param {*} object The potential iteratee object argument.
-   * @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`.
+   * @returns {boolean} Returns `true` if the arguments are from an iteratee call,
+   *  else `false`.
    */
   function isIterateeCall(value, index, object) {
     if (!isObject(object)) {
@@ -15,8 +16,9 @@ define(['./eq', './isArrayLike', './_isIndex', './isObject'], function(eq, isArr
     }
     var type = typeof index;
     if (type == 'number'
-        ? (isArrayLike(object) && isIndex(index, object.length))
-        : (type == 'string' && index in object)) {
+          ? (isArrayLike(object) && isIndex(index, object.length))
+          : (type == 'string' && index in object)
+        ) {
       return eq(object[index], value);
     }
     return false;

_isKey.js

@@ -1,4 +1,4 @@
-define(['./isArray'], function(isArray) {
+define(['./isArray', './isSymbol'], function(isArray, isSymbol) {
 
   /** Used to match property names within property paths. */
   var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,
@@ -13,11 +13,12 @@ define(['./isArray'], function(isArray) {
    * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
    */
   function isKey(value, object) {
-    if (typeof value == 'number') {
+    var type = typeof value;
+    if (type == 'number' || type == 'symbol') {
       return true;
     }
     return !isArray(value) &&
-      (reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||
+      (isSymbol(value) || reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||
         (object != null && value in Object(object)));
   }
 

_isLaziable.js

@@ -5,7 +5,8 @@ define(['./_LazyWrapper', './_getData', './_getFuncName', './wrapperLodash'], fu
    *
    * @private
    * @param {Function} func The function to check.
-   * @returns {boolean} Returns `true` if `func` has a lazy counterpart, else `false`.
+   * @returns {boolean} Returns `true` if `func` has a lazy counterpart,
+   *  else `false`.
    */
   function isLaziable(func) {
     var funcName = getFuncName(func),