Bump to v4.16.2.

README.md

@@ -1,9 +1,9 @@
-# lodash-amd v4.11.2
+# lodash-amd v4.16.2
 
 The [Lodash](https://lodash.com/) library exported as [AMD](https://github.com/amdjs/amdjs-api/wiki/AMD) modules.
 
 Generated using [lodash-cli](https://www.npmjs.com/package/lodash-cli):
-```bash
+```shell
 $ lodash exports=amd -o ./
 $ lodash exports=amd -d -o ./main.js
 ```
@@ -11,8 +11,8 @@ $ lodash exports=amd -d -o ./main.js
 ## Installation
 
 Using npm:
-```bash
+```shell
-$ {sudo -H} npm i -g npm
+$ npm i -g npm
 $ npm i --save lodash-amd
 ```
 
@@ -27,4 +27,4 @@ require({
 });
 ```
 
-See the [package source](https://github.com/lodash/lodash/tree/4.11.2-amd) for more details.
+See the [package source](https://github.com/lodash/lodash/tree/4.16.2-amd) for more details.

_Hash.js

@@ -1,19 +1,29 @@
-define(['./_nativeCreate'], function(nativeCreate) {
+define(['./_hashClear', './_hashDelete', './_hashGet', './_hashHas', './_hashSet'], function(hashClear, hashDelete, hashGet, hashHas, hashSet) {
-
-  /** Used for built-in method references. */
-  var objectProto = Object.prototype;
 
   /**
    * Creates a hash object.
    *
    * @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;
 
-  // Avoid inheriting from `Object.prototype` when possible.
+    this.clear();
-  Hash.prototype = nativeCreate ? nativeCreate(null) : objectProto;
+    while (++index < length) {
+      var entry = entries[index];
+      this.set(entry[0], entry[1]);
+    }
+  }
+
+  // Add methods to `Hash`.
+  Hash.prototype.clear = hashClear;
+  Hash.prototype['delete'] = hashDelete;
+  Hash.prototype.get = hashGet;
+  Hash.prototype.has = hashHas;
+  Hash.prototype.set = hashSet;
 
   return Hash;
 });

_ListCache.js

@@ -0,0 +1,29 @@
+define(['./_listCacheClear', './_listCacheDelete', './_listCacheGet', './_listCacheHas', './_listCacheSet'], function(listCacheClear, listCacheDelete, listCacheGet, listCacheHas, listCacheSet) {
+
+  /**
+   * 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]);
+    }
+  }
+
+  // Add methods to `ListCache`.
+  ListCache.prototype.clear = listCacheClear;
+  ListCache.prototype['delete'] = listCacheDelete;
+  ListCache.prototype.get = listCacheGet;
+  ListCache.prototype.has = listCacheHas;
+  ListCache.prototype.set = listCacheSet;
+
+  return ListCache;
+});

_MapCache.js

@@ -1,29 +1,29 @@
-define(['./_mapClear', './_mapDelete', './_mapGet', './_mapHas', './_mapSet'], function(mapClear, mapDelete, mapGet, mapHas, mapSet) {
+define(['./_mapCacheClear', './_mapCacheDelete', './_mapCacheGet', './_mapCacheHas', './_mapCacheSet'], function(mapCacheClear, mapCacheDelete, mapCacheGet, mapCacheHas, mapCacheSet) {
 
   /**
    * Creates a map cache object to store key-value pairs.
    *
    * @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]);
     }
   }
 
   // Add methods to `MapCache`.
-  MapCache.prototype.clear = mapClear;
+  MapCache.prototype.clear = mapCacheClear;
-  MapCache.prototype['delete'] = mapDelete;
+  MapCache.prototype['delete'] = mapCacheDelete;
-  MapCache.prototype.get = mapGet;
+  MapCache.prototype.get = mapCacheGet;
-  MapCache.prototype.has = mapHas;
+  MapCache.prototype.has = mapCacheHas;
-  MapCache.prototype.set = mapSet;
+  MapCache.prototype.set = mapCacheSet;
 
   return MapCache;
 });

_Reflect.js

@@ -1,7 +0,0 @@
-define(['./_root'], function(root) {
-
-  /** Built-in value references. */
-  var Reflect = root.Reflect;
-
-  return Reflect;
-});

_SetCache.js

@@ -1,8 +1,8 @@
-define(['./_MapCache', './_cachePush'], function(MapCache, cachePush) {
+define(['./_MapCache', './_setCacheAdd', './_setCacheHas'], function(MapCache, setCacheAdd, setCacheHas) {
 
   /**
    *
-   * Creates a set cache object to store unique values.
+   * Creates an array cache object to store unique values.
    *
    * @private
    * @constructor
@@ -14,12 +14,13 @@ define(['./_MapCache', './_cachePush'], function(MapCache, cachePush) {
 
     this.__data__ = new MapCache;
     while (++index < length) {
-      this.push(values[index]);
+      this.add(values[index]);
     }
   }
 
   // Add methods to `SetCache`.
-  SetCache.prototype.push = cachePush;
+  SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;
+  SetCache.prototype.has = setCacheHas;
 
   return SetCache;
 });

_Stack.js

@@ -1,21 +1,15 @@
-define(['./_stackClear', './_stackDelete', './_stackGet', './_stackHas', './_stackSet'], function(stackClear, stackDelete, stackGet, stackHas, stackSet) {
+define(['./_ListCache', './_stackClear', './_stackDelete', './_stackGet', './_stackHas', './_stackSet'], function(ListCache, stackClear, stackDelete, stackGet, stackHas, stackSet) {
 
   /**
    * Creates a stack cache object to store key-value pairs.
    *
    * @private
    * @constructor
-   * @param {Array} [values] The values to cache.
+   * @param {Array} [entries] The key-value pairs to cache.
    */
-  function Stack(values) {
+  function Stack(entries) {
-    var index = -1,
+    var data = this.__data__ = new ListCache(entries);
-        length = values ? values.length : 0;
+    this.size = data.size;
-
-    this.clear();
-    while (++index < length) {
-      var entry = values[index];
-      this.set(entry[0], entry[1]);
-    }
   }
 
   // Add methods to `Stack`.

_addMapEntry.js

@@ -9,7 +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.
+    // Don't return `map.set` because it's not chainable in IE 11.
     map.set(pair[0], pair[1]);
     return map;
   }

_addSetEntry.js

@@ -9,6 +9,7 @@ define([], function() {
    * @returns {Object} Returns `set`.
    */
   function addSetEntry(set, value) {
+    // Don't return `set.add` because it's not chainable in IE 11.
     set.add(value);
     return set;
   }

_apply.js

@@ -11,8 +11,7 @@ define([], function() {
    * @returns {*} Returns the result of `func`.
    */
   function apply(func, thisArg, args) {
-    var length = args.length;
+    switch (args.length) {
-    switch (length) {
       case 0: return func.call(thisArg);
       case 1: return func.call(thisArg, args[0]);
       case 2: return func.call(thisArg, args[0], args[1]);

_arrayAggregator.js

@@ -4,7 +4,7 @@ define([], function() {
    * 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.
@@ -12,7 +12,7 @@ define([], function() {
    */
   function arrayAggregator(array, setter, iteratee, accumulator) {
     var index = -1,
-        length = array.length;
+        length = array ? array.length : 0;
 
     while (++index < length) {
       var value = array[index];

_arrayConcat.js

@@ -1,28 +0,0 @@
-define([], function() {
-
-  /**
-   * 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;
-  }
-
-  return arrayConcat;
-});

_arrayEach.js

@@ -5,13 +5,13 @@ define([], function() {
    * 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) {

_arrayEachRight.js

@@ -5,12 +5,12 @@ define([], function() {
    * 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) {

_arrayEvery.js

@@ -5,14 +5,14 @@ define([], function() {
    * 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)) {

_arrayFilter.js

@@ -5,13 +5,13 @@ define([], function() {
    * 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 = [];
 

_arrayIncludes.js

@@ -5,12 +5,13 @@ define(['./_baseIndexOf'], function(baseIndexOf) {
    * specifying an index to search from.
    *
    * @private
-   * @param {Array} array The array to search.
+   * @param {Array} [array] The array to inspect.
    * @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;
   }
 
   return arrayIncludes;

_arrayIncludesWith.js

@@ -4,14 +4,14 @@ define([], function() {
    * 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 inspect.
    * @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])) {

_arrayLikeKeys.js

@@ -0,0 +1,37 @@
+define(['./_baseTimes', './isArguments', './isArray', './_isIndex'], function(baseTimes, isArguments, isArray, isIndex) {
+
+  /** Used for built-in method references. */
+  var objectProto = Object.prototype;
+
+  /** Used to check objects for own properties. */
+  var hasOwnProperty = objectProto.hasOwnProperty;
+
+  /**
+   * Creates an array of the enumerable property names of the array-like `value`.
+   *
+   * @private
+   * @param {*} value The value to query.
+   * @param {boolean} inherited Specify returning inherited property names.
+   * @returns {Array} Returns the array of property names.
+   */
+  function arrayLikeKeys(value, inherited) {
+    // Safari 8.1 makes `arguments.callee` enumerable in strict mode.
+    // Safari 9 makes `arguments.length` enumerable in strict mode.
+    var result = (isArray(value) || isArguments(value))
+      ? baseTimes(value.length, String)
+      : [];
+
+    var length = result.length,
+        skipIndexes = !!length;
+
+    for (var key in value) {
+      if ((inherited || hasOwnProperty.call(value, key)) &&
+          !(skipIndexes && (key == 'length' || isIndex(key, length)))) {
+        result.push(key);
+      }
+    }
+    return result;
+  }
+
+  return arrayLikeKeys;
+});

_arrayMap.js

@@ -5,13 +5,13 @@ define([], function() {
    * 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) {

_arrayReduce.js

@@ -5,7 +5,7 @@ define([], function() {
    * 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
@@ -14,7 +14,7 @@ define([], function() {
    */
   function arrayReduce(array, iteratee, accumulator, initAccum) {
     var index = -1,
-        length = array.length;
+        length = array ? array.length : 0;
 
     if (initAccum && length) {
       accumulator = array[++index];

_arrayReduceRight.js

@@ -5,7 +5,7 @@ define([], function() {
    * 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
@@ -13,7 +13,7 @@ define([], function() {
    * @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];
     }

_arraySample.js

@@ -0,0 +1,19 @@
+define(['./_baseRandom'], function(baseRandom) {
+
+  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
+  var undefined;
+
+  /**
+   * A specialized version of `_.sample` for arrays.
+   *
+   * @private
+   * @param {Array} array The array to sample.
+   * @returns {*} Returns the random element.
+   */
+  function arraySample(array) {
+    var length = array.length;
+    return length ? array[baseRandom(0, length - 1)] : undefined;
+  }
+
+  return arraySample;
+});

_arraySampleSize.js

@@ -0,0 +1,16 @@
+define(['./_copyArray', './_shuffleSelf'], function(copyArray, shuffleSelf) {
+
+  /**
+   * A specialized version of `_.sampleSize` for arrays.
+   *
+   * @private
+   * @param {Array} array The array to sample.
+   * @param {number} n The number of elements to sample.
+   * @returns {Array} Returns the random elements.
+   */
+  function arraySampleSize(array, n) {
+    return shuffleSelf(copyArray(array), n);
+  }
+
+  return arraySampleSize;
+});

_arrayShuffle.js

@@ -0,0 +1,15 @@
+define(['./_copyArray', './_shuffleSelf'], function(copyArray, shuffleSelf) {
+
+  /**
+   * A specialized version of `_.shuffle` for arrays.
+   *
+   * @private
+   * @param {Array} array The array to shuffle.
+   * @returns {Array} Returns the new shuffled array.
+   */
+  function arrayShuffle(array) {
+    return shuffleSelf(copyArray(array));
+  }
+
+  return arrayShuffle;
+});

_arraySome.js

@@ -5,14 +5,14 @@ define([], function() {
    * 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)) {

_asciiSize.js

@@ -0,0 +1,13 @@
+define(['./_baseProperty'], function(baseProperty) {
+
+  /**
+   * Gets the size of an ASCII `string`.
+   *
+   * @private
+   * @param {string} string The string inspect.
+   * @returns {number} Returns the string size.
+   */
+  var asciiSize = baseProperty('length');
+
+  return asciiSize;
+});

_asciiToArray.js

@@ -0,0 +1,15 @@
+define([], function() {
+
+  /**
+   * Converts an ASCII `string` to an array.
+   *
+   * @private
+   * @param {string} string The string to convert.
+   * @returns {Array} Returns the converted array.
+   */
+  function asciiToArray(string) {
+    return string.split('');
+  }
+
+  return asciiToArray;
+});

_asciiWords.js

@@ -0,0 +1,18 @@
+define([], function() {
+
+  /** Used to match words composed of alphanumeric characters. */
+  var reAsciiWord = /[^\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f]+/g;
+
+  /**
+   * Splits an ASCII `string` into an array of its words.
+   *
+   * @private
+   * @param {string} The string to inspect.
+   * @returns {Array} Returns the words of `string`.
+   */
+  function asciiWords(string) {
+    return string.match(reAsciiWord) || [];
+  }
+
+  return asciiWords;
+});

_assignMergeValue.js

@@ -1,4 +1,4 @@
-define(['./eq'], function(eq) {
+define(['./_baseAssignValue', './eq'], function(baseAssignValue, eq) {
 
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
@@ -15,7 +15,7 @@ define(['./eq'], function(eq) {
   function assignMergeValue(object, key, value) {
     if ((value !== undefined && !eq(object[key], value)) ||
         (typeof key == 'number' && value === undefined && !(key in object))) {
-      object[key] = value;
+      baseAssignValue(object, key, value);
     }
   }
 

_assignValue.js

@@ -1,4 +1,4 @@
-define(['./eq'], function(eq) {
+define(['./_baseAssignValue', './eq'], function(baseAssignValue, eq) {
 
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
@@ -11,7 +11,7 @@ define(['./eq'], function(eq) {
 
   /**
    * Assigns `value` to `key` of `object` if the existing value is not equivalent
-   * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+   * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
    * for equality comparisons.
    *
    * @private
@@ -23,7 +23,7 @@ define(['./eq'], function(eq) {
     var objValue = object[key];
     if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||
         (value === undefined && !(key in object))) {
-      object[key] = value;
+      baseAssignValue(object, key, value);
     }
   }
 

_assocIndexOf.js

@@ -4,7 +4,7 @@ define(['./eq'], function(eq) {
    * Gets the index at which the `key` is found in `array` of key-value pairs.
    *
    * @private
-   * @param {Array} array The array to search.
+   * @param {Array} array The array to inspect.
    * @param {*} key The key to search for.
    * @returns {number} Returns the index of the matched value, else `-1`.
    */

_assocSet.js

@@ -1,21 +0,0 @@
-define(['./_assocIndexOf'], function(assocIndexOf) {
-
-  /**
-   * 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;
-    }
-  }
-
-  return assocSet;
-});

_baseAssignValue.js

@@ -0,0 +1,29 @@
+define([], function() {
+
+  /** Built-in value references. */
+  var defineProperty = Object.defineProperty;
+
+  /**
+   * The base implementation of `assignValue` and `assignMergeValue` without
+   * value checks.
+   *
+   * @private
+   * @param {Object} object The object to modify.
+   * @param {string} key The key of the property to assign.
+   * @param {*} value The value to assign.
+   */
+  function baseAssignValue(object, key, value) {
+    if (key == '__proto__' && defineProperty) {
+      defineProperty(object, key, {
+        'configurable': true,
+        'enumerable': true,
+        'value': value,
+        'writable': true
+      });
+    } else {
+      object[key] = value;
+    }
+  }
+
+  return baseAssignValue;
+});

_baseAt.js

@@ -9,7 +9,7 @@ define(['./get'], function(get) {
    * @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,

_baseClamp.js

@@ -4,7 +4,7 @@ define([], function() {
   var undefined;
 
   /**
-   * The base implementation of `_.clamp` which doesn't coerce arguments to numbers.
+   * The base implementation of `_.clamp` which doesn't coerce arguments.
    *
    * @private
    * @param {number} number The number to clamp.

_baseClone.js

@@ -1,4 +1,4 @@
-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) {
+define(['./_Stack', './_arrayEach', './_assignValue', './_baseAssign', './_cloneBuffer', './_copyArray', './_copySymbols', './_getAllKeys', './_getTag', './_initCloneArray', './_initCloneByTag', './_initCloneObject', './isArray', './isBuffer', './isObject', './keys'], function(Stack, arrayEach, assignValue, baseAssign, cloneBuffer, copyArray, copySymbols, getAllKeys, getTag, initCloneArray, initCloneByTag, initCloneObject, isArray, isBuffer, isObject, keys) {
 
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
@@ -87,9 +87,6 @@ define(['./_Stack', './_arrayEach', './_assignValue', './_baseAssign', './_clone
         return cloneBuffer(value, isDeep);
       }
       if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
-        if (isHostObject(value)) {
-          return object ? value : {};
-        }
         result = initCloneObject(isFunc ? {} : value);
         if (!isDeep) {
           return copySymbols(value, baseAssign(result, value));
@@ -112,12 +109,12 @@ define(['./_Stack', './_arrayEach', './_assignValue', './_baseAssign', './_clone
     if (!isArr) {
       var props = isFull ? getAllKeys(value) : keys(value);
     }
-    // Recursively populate clone (susceptible to call stack limits).
     arrayEach(props || value, function(subValue, key) {
       if (props) {
         key = subValue;
         subValue = value[key];
       }
+      // Recursively populate clone (susceptible to call stack limits).
       assignValue(result, key, baseClone(subValue, isDeep, isFull, customizer, key, value, stack));
     });
     return result;

_baseConforms.js

@@ -1,35 +1,16 @@
-define(['./keys'], function(keys) {
+define(['./_baseConformsTo', './keys'], function(baseConformsTo, keys) {
-
-  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
-  var undefined;
 
   /**
    * The base implementation of `_.conforms` which doesn't clone `source`.
    *
    * @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),
+    var props = keys(source);
-        length = props.length;
-
     return function(object) {
-      if (object == null) {
+      return baseConformsTo(object, source, props);
-        return !length;
-      }
-      var index = length;
-      while (index--) {
-        var key = props[index],
-            predicate = source[key],
-            value = object[key];
-
-        if ((value === undefined &&
-            !(key in Object(object))) || !predicate(value)) {
-          return false;
-        }
-      }
-      return true;
     };
   }
 

_baseConformsTo.js

@@ -0,0 +1,33 @@
+define([], function() {
+
+  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
+  var undefined;
+
+  /**
+   * The base implementation of `_.conformsTo` which accepts `props` to check.
+   *
+   * @private
+   * @param {Object} object The object to inspect.
+   * @param {Object} source The object of property predicates to conform to.
+   * @returns {boolean} Returns `true` if `object` conforms, else `false`.
+   */
+  function baseConformsTo(object, source, props) {
+    var length = props.length;
+    if (object == null) {
+      return !length;
+    }
+    object = Object(object);
+    while (length--) {
+      var key = props[length],
+          predicate = source[key],
+          value = object[key];
+
+      if ((value === undefined && !(key in object)) || !predicate(value)) {
+        return false;
+      }
+    }
+    return true;
+  }
+
+  return baseConformsTo;
+});

_baseCreate.js

@@ -1,5 +1,8 @@
 define(['./isObject'], function(isObject) {
 
+  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
+  var undefined;
+
   /** Built-in value references. */
   var objectCreate = Object.create;
 
@@ -8,12 +11,24 @@ define(['./isObject'], function(isObject) {
    * properties to the created object.
    *
    * @private
-   * @param {Object} prototype The object to inherit from.
+   * @param {Object} proto The object to inherit from.
    * @returns {Object} Returns the new object.
    */
-  function baseCreate(proto) {
+  var baseCreate = (function() {
-    return isObject(proto) ? objectCreate(proto) : {};
+    function object() {}
-  }
+    return function(proto) {
+      if (!isObject(proto)) {
+        return {};
+      }
+      if (objectCreate) {
+        return objectCreate(proto);
+      }
+      object.prototype = prototype;
+      var result = new object;
+      object.prototype = undefined;
+      return result;
+    };
+  }());
 
   return baseCreate;
 });

_baseDelay.js

@@ -3,18 +3,18 @@ define([], function() {
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
 
-  /** Used as the `TypeError` message for "Functions" methods. */
+  /** Error message constants. */
   var FUNC_ERROR_TEXT = 'Expected a function';
 
   /**
-   * The base implementation of `_.delay` and `_.defer` which accepts an array
+   * The base implementation of `_.delay` and `_.defer` which accepts `args`
-   * of `func` arguments.
+   * to provide to `func`.
    *
    * @private
    * @param {Function} func The function to delay.
    * @param {number} wait The number of milliseconds to delay invocation.
-   * @param {Object} args The arguments to provide to `func`.
+   * @param {Array} args The arguments to provide to `func`.
-   * @returns {number} Returns the timer id.
+   * @returns {number|Object} Returns the timer id or timeout object.
    */
   function baseDelay(func, wait, args) {
     if (typeof func != 'function') {

_baseFind.js

@@ -1,28 +0,0 @@
-define([], function() {
-
-  /**
-   * The base implementation of methods like `_.find` and `_.findKey`, 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) {
-    var result;
-    eachFunc(collection, function(value, key, collection) {
-      if (predicate(value, key, collection)) {
-        result = retKey ? key : value;
-        return false;
-      }
-    });
-    return result;
-  }
-
-  return baseFind;
-});

_baseFindIndex.js

@@ -5,14 +5,15 @@ define([], function() {
    * support for iteratee shorthands.
    *
    * @private
-   * @param {Array} array The array to search.
+   * @param {Array} array The array to inspect.
    * @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)) {

_baseFindKey.js

@@ -0,0 +1,26 @@
+define([], function() {
+
+  /**
+   * 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 inspect.
+   * @param {Function} predicate The function invoked per iteration.
+   * @param {Function} eachFunc The function to iterate over `collection`.
+   * @returns {*} Returns the found element or its key, else `undefined`.
+   */
+  function baseFindKey(collection, predicate, eachFunc) {
+    var result;
+    eachFunc(collection, function(value, key, collection) {
+      if (predicate(value, key, collection)) {
+        result = key;
+        return false;
+      }
+    });
+    return result;
+  }
+
+  return baseFindKey;
+});

_baseFunctions.js

@@ -7,7 +7,7 @@ define(['./_arrayFilter', './isFunction'], function(arrayFilter, isFunction) {
    * @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) {

_baseGetAllKeys.js

@@ -13,9 +13,7 @@ define(['./_arrayPush', './isArray'], function(arrayPush, isArray) {
    */
   function baseGetAllKeys(object, keysFunc, symbolsFunc) {
     var result = keysFunc(object);
-    return isArray(object)
+    return isArray(object) ? result : arrayPush(result, symbolsFunc(object));
-      ? result
-      : arrayPush(result, symbolsFunc(object));
   }
 
   return baseGetAllKeys;

_baseGetTag.js

@@ -0,0 +1,25 @@
+define([], function() {
+
+  /** Used for built-in method references. */
+  var objectProto = Object.prototype;
+
+  /**
+   * Used to resolve the
+   * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
+   * of values.
+   */
+  var objectToString = objectProto.toString;
+
+  /**
+   * The base implementation of `getTag`.
+   *
+   * @private
+   * @param {*} value The value to query.
+   * @returns {string} Returns the `toStringTag`.
+   */
+  function baseGetTag(value) {
+    return objectToString.call(value);
+  }
+
+  return baseGetTag;
+});

_baseGt.js

@@ -1,7 +1,7 @@
 define([], function() {
 
   /**
-   * The base implementation of `_.gt` which doesn't coerce arguments to numbers.
+   * The base implementation of `_.gt` which doesn't coerce arguments.
    *
    * @private
    * @param {*} value The value to compare.

_baseHas.js

@@ -1,4 +1,4 @@
-define(['./_getPrototype'], function(getPrototype) {
+define([], function() {
 
   /** Used for built-in method references. */
   var objectProto = Object.prototype;
@@ -10,16 +10,12 @@ define(['./_getPrototype'], function(getPrototype) {
    * 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`.
    */
   function baseHas(object, key) {
-    // Avoid a bug in IE 10-11 where objects with a [[Prototype]] of `null`,
+    return object != null && hasOwnProperty.call(object, key);
-    // 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 baseHas;

_baseHasIn.js

@@ -4,12 +4,12 @@ define([], function() {
    * 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);
   }
 
   return baseHasIn;

_baseInRange.js

@@ -5,7 +5,7 @@ define([], function() {
       nativeMin = Math.min;
 
   /**
-   * The base implementation of `_.inRange` which doesn't coerce arguments to numbers.
+   * The base implementation of `_.inRange` which doesn't coerce arguments.
    *
    * @private
    * @param {number} number The number to check.

_baseIndexOf.js

@@ -1,27 +1,18 @@
-define(['./_indexOfNaN'], function(indexOfNaN) {
+define(['./_baseFindIndex', './_baseIsNaN', './_strictIndexOf'], function(baseFindIndex, baseIsNaN, strictIndexOf) {
 
   /**
    * The base implementation of `_.indexOf` without `fromIndex` bounds checks.
    *
    * @private
-   * @param {Array} array The array to search.
+   * @param {Array} array The array to inspect.
    * @param {*} value The value to search for.
    * @param {number} fromIndex The index to search from.
    * @returns {number} Returns the index of the matched value, else `-1`.
    */
   function baseIndexOf(array, value, fromIndex) {
-    if (value !== value) {
+    return value === value
-      return indexOfNaN(array, fromIndex);
+      ? strictIndexOf(array, value, fromIndex)
-    }
+      : baseFindIndex(array, baseIsNaN, fromIndex);
-    var index = fromIndex - 1,
-        length = array.length;
-
-    while (++index < length) {
-      if (array[index] === value) {
-        return index;
-      }
-    }
-    return -1;
   }
 
   return baseIndexOf;

_baseIndexOfWith.js

@@ -4,7 +4,7 @@ define([], function() {
    * This function is like `baseIndexOf` except that it accepts a comparator.
    *
    * @private
-   * @param {Array} array The array to search.
+   * @param {Array} array The array to inspect.
    * @param {*} value The value to search for.
    * @param {number} fromIndex The index to search from.
    * @param {Function} comparator The comparator invoked per element.

_baseIsArrayBuffer.js

@@ -0,0 +1,27 @@
+define(['./isObjectLike'], function(isObjectLike) {
+
+  var arrayBufferTag = '[object ArrayBuffer]';
+
+  /** Used for built-in method references. */
+  var objectProto = Object.prototype;
+
+  /**
+   * Used to resolve the
+   * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
+   * of values.
+   */
+  var objectToString = objectProto.toString;
+
+  /**
+   * The base implementation of `_.isArrayBuffer` without Node.js optimizations.
+   *
+   * @private
+   * @param {*} value The value to check.
+   * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.
+   */
+  function baseIsArrayBuffer(value) {
+    return isObjectLike(value) && objectToString.call(value) == arrayBufferTag;
+  }
+
+  return baseIsArrayBuffer;
+});

_baseIsDate.js

@@ -0,0 +1,28 @@
+define(['./isObjectLike'], function(isObjectLike) {
+
+  /** `Object#toString` result references. */
+  var dateTag = '[object Date]';
+
+  /** Used for built-in method references. */
+  var objectProto = Object.prototype;
+
+  /**
+   * Used to resolve the
+   * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
+   * of values.
+   */
+  var objectToString = objectProto.toString;
+
+  /**
+   * The base implementation of `_.isDate` without Node.js optimizations.
+   *
+   * @private
+   * @param {*} value The value to check.
+   * @returns {boolean} Returns `true` if `value` is a date object, else `false`.
+   */
+  function baseIsDate(value) {
+    return isObjectLike(value) && objectToString.call(value) == dateTag;
+  }
+
+  return baseIsDate;
+});

_baseIsEqualDeep.js

@@ -1,4 +1,4 @@
-define(['./_Stack', './_equalArrays', './_equalByTag', './_equalObjects', './_getTag', './isArray', './_isHostObject', './isTypedArray'], function(Stack, equalArrays, equalByTag, equalObjects, getTag, isArray, isHostObject, isTypedArray) {
+define(['./_Stack', './_equalArrays', './_equalByTag', './_equalObjects', './_getTag', './isArray', './isTypedArray'], function(Stack, equalArrays, equalByTag, equalObjects, getTag, isArray, isTypedArray) {
 
   /** Used to compose bitmasks for comparison styles. */
   var PARTIAL_COMPARE_FLAG = 2;
@@ -43,8 +43,8 @@ define(['./_Stack', './_equalArrays', './_equalByTag', './_equalObjects', './_ge
       othTag = getTag(other);
       othTag = othTag == argsTag ? objectTag : othTag;
     }
-    var objIsObj = objTag == objectTag && !isHostObject(object),
+    var objIsObj = objTag == objectTag,
-        othIsObj = othTag == objectTag && !isHostObject(other),
+        othIsObj = othTag == objectTag,
         isSameTag = objTag == othTag;
 
     if (isSameTag && !objIsObj) {

_baseIsMap.js

@@ -0,0 +1,18 @@
+define(['./_getTag', './isObjectLike'], function(getTag, isObjectLike) {
+
+  /** `Object#toString` result references. */
+  var mapTag = '[object Map]';
+
+  /**
+   * The base implementation of `_.isMap` without Node.js optimizations.
+   *
+   * @private
+   * @param {*} value The value to check.
+   * @returns {boolean} Returns `true` if `value` is a map, else `false`.
+   */
+  function baseIsMap(value) {
+    return isObjectLike(value) && getTag(value) == mapTag;
+  }
+
+  return baseIsMap;
+});

_baseIsNaN.js

@@ -0,0 +1,15 @@
+define([], function() {
+
+  /**
+   * The base implementation of `_.isNaN` without support for number objects.
+   *
+   * @private
+   * @param {*} value The value to check.
+   * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
+   */
+  function baseIsNaN(value) {
+    return value !== value;
+  }
+
+  return baseIsNaN;
+});

_baseIsNative.js

@@ -0,0 +1,45 @@
+define(['./isFunction', './_isMasked', './isObject', './_toSource'], function(isFunction, isMasked, isObject, toSource) {
+
+  /**
+   * Used to match `RegExp`
+   * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
+   */
+  var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;
+
+  /** Used to detect host constructors (Safari). */
+  var reIsHostCtor = /^\[object .+?Constructor\]$/;
+
+  /** Used for built-in method references. */
+  var funcProto = Function.prototype,
+      objectProto = Object.prototype;
+
+  /** Used to resolve the decompiled source of functions. */
+  var funcToString = funcProto.toString;
+
+  /** Used to check objects for own properties. */
+  var hasOwnProperty = objectProto.hasOwnProperty;
+
+  /** Used to detect if a method is native. */
+  var reIsNative = RegExp('^' +
+    funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&')
+    .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
+  );
+
+  /**
+   * 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) ? reIsNative : reIsHostCtor;
+    return pattern.test(toSource(value));
+  }
+
+  return baseIsNative;
+});

_baseIsRegExp.js

@@ -0,0 +1,28 @@
+define(['./isObject'], function(isObject) {
+
+  /** `Object#toString` result references. */
+  var regexpTag = '[object RegExp]';
+
+  /** Used for built-in method references. */
+  var objectProto = Object.prototype;
+
+  /**
+   * Used to resolve the
+   * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
+   * of values.
+   */
+  var objectToString = objectProto.toString;
+
+  /**
+   * The base implementation of `_.isRegExp` without Node.js optimizations.
+   *
+   * @private
+   * @param {*} value The value to check.
+   * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
+   */
+  function baseIsRegExp(value) {
+    return isObject(value) && objectToString.call(value) == regexpTag;
+  }
+
+  return baseIsRegExp;
+});

_baseIsSet.js

@@ -0,0 +1,18 @@
+define(['./_getTag', './isObjectLike'], function(getTag, isObjectLike) {
+
+  /** `Object#toString` result references. */
+  var setTag = '[object Set]';
+
+  /**
+   * The base implementation of `_.isSet` without Node.js optimizations.
+   *
+   * @private
+   * @param {*} value The value to check.
+   * @returns {boolean} Returns `true` if `value` is a set, else `false`.
+   */
+  function baseIsSet(value) {
+    return isObjectLike(value) && getTag(value) == setTag;
+  }
+
+  return baseIsSet;
+});

_baseIsTypedArray.js

@@ -0,0 +1,69 @@
+define(['./isLength', './isObjectLike'], function(isLength, isObjectLike) {
+
+  /** `Object#toString` result references. */
+  var argsTag = '[object Arguments]',
+      arrayTag = '[object Array]',
+      boolTag = '[object Boolean]',
+      dateTag = '[object Date]',
+      errorTag = '[object Error]',
+      funcTag = '[object Function]',
+      mapTag = '[object Map]',
+      numberTag = '[object Number]',
+      objectTag = '[object Object]',
+      regexpTag = '[object RegExp]',
+      setTag = '[object Set]',
+      stringTag = '[object String]',
+      weakMapTag = '[object WeakMap]';
+
+  var arrayBufferTag = '[object ArrayBuffer]',
+      dataViewTag = '[object DataView]',
+      float32Tag = '[object Float32Array]',
+      float64Tag = '[object Float64Array]',
+      int8Tag = '[object Int8Array]',
+      int16Tag = '[object Int16Array]',
+      int32Tag = '[object Int32Array]',
+      uint8Tag = '[object Uint8Array]',
+      uint8ClampedTag = '[object Uint8ClampedArray]',
+      uint16Tag = '[object Uint16Array]',
+      uint32Tag = '[object Uint32Array]';
+
+  /** Used to identify `toStringTag` values of typed arrays. */
+  var typedArrayTags = {};
+  typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
+  typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
+  typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
+  typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
+  typedArrayTags[uint32Tag] = true;
+  typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
+  typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
+  typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =
+  typedArrayTags[errorTag] = typedArrayTags[funcTag] =
+  typedArrayTags[mapTag] = typedArrayTags[numberTag] =
+  typedArrayTags[objectTag] = typedArrayTags[regexpTag] =
+  typedArrayTags[setTag] = typedArrayTags[stringTag] =
+  typedArrayTags[weakMapTag] = false;
+
+  /** Used for built-in method references. */
+  var objectProto = Object.prototype;
+
+  /**
+   * Used to resolve the
+   * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
+   * of values.
+   */
+  var objectToString = objectProto.toString;
+
+  /**
+   * The base implementation of `_.isTypedArray` without Node.js optimizations.
+   *
+   * @private
+   * @param {*} value The value to check.
+   * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
+   */
+  function baseIsTypedArray(value) {
+    return isObjectLike(value) &&
+      isLength(value.length) && !!typedArrayTags[objectToString.call(value)];
+  }
+
+  return baseIsTypedArray;
+});

_baseKeys.js

@@ -1,18 +1,29 @@
-define([], function() {
+define(['./_isPrototype', './_nativeKeys'], function(isPrototype, nativeKeys) {
 
-  /* Built-in method references for those with the same name as other `lodash` methods. */
+  /** Used for built-in method references. */
-  var nativeKeys = Object.keys;
+  var objectProto = Object.prototype;
+
+  /** Used to check objects for own properties. */
+  var hasOwnProperty = objectProto.hasOwnProperty;
 
   /**
-   * The base implementation of `_.keys` which doesn't skip the constructor
+   * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.
-   * property of prototypes or treat sparse arrays as dense.
    *
    * @private
    * @param {Object} object The object to query.
    * @returns {Array} Returns the array of property names.
    */
   function baseKeys(object) {
-    return nativeKeys(Object(object));
+    if (!isPrototype(object)) {
+      return nativeKeys(object);
+    }
+    var result = [];
+    for (var key in Object(object)) {
+      if (hasOwnProperty.call(object, key) && key != 'constructor') {
+        result.push(key);
+      }
+    }
+    return result;
   }
 
   return baseKeys;

_baseKeysIn.js

@@ -1,39 +1,32 @@
-define(['./_Reflect', './_iteratorToArray'], function(Reflect, iteratorToArray) {
+define(['./isObject', './_isPrototype', './_nativeKeysIn'], function(isObject, isPrototype, nativeKeysIn) {
-
-  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
-  var undefined;
 
   /** Used for built-in method references. */
   var objectProto = Object.prototype;
 
-  /** Built-in value references. */
+  /** Used to check objects for own properties. */
-  var enumerate = Reflect ? Reflect.enumerate : undefined,
+  var hasOwnProperty = objectProto.hasOwnProperty;
-      propertyIsEnumerable = objectProto.propertyIsEnumerable;
 
   /**
-   * The base implementation of `_.keysIn` which doesn't skip the constructor
+   * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.
-   * property of prototypes or treat sparse arrays as dense.
    *
    * @private
    * @param {Object} object The object to query.
    * @returns {Array} Returns the array of property names.
    */
   function baseKeysIn(object) {
-    object = object == null ? object : Object(object);
+    if (!isObject(object)) {
+      return nativeKeysIn(object);
+    }
+    var isProto = isPrototype(object),
+        result = [];
 
-    var result = [];
     for (var key in object) {
-      result.push(key);
+      if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
+        result.push(key);
+      }
     }
     return result;
   }
 
-  // Fallback for IE < 9 with es6-shim.
-  if (enumerate && !propertyIsEnumerable.call({ 'valueOf': 1 }, 'valueOf')) {
-    baseKeysIn = function(object) {
-      return iteratorToArray(enumerate(object));
-    };
-  }
-
   return baseKeysIn;
 });

_baseLt.js

@@ -1,7 +1,7 @@
 define([], function() {
 
   /**
-   * The base implementation of `_.lt` which doesn't coerce arguments to numbers.
+   * The base implementation of `_.lt` which doesn't coerce arguments.
    *
    * @private
    * @param {*} value The value to compare.

_baseMatches.js

@@ -5,7 +5,7 @@ define(['./_baseIsMatch', './_getMatchData', './_matchesStrictComparable'], func
    *
    * @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);

_baseMatchesProperty.js

@@ -13,7 +13,7 @@ define(['./_baseIsEqual', './get', './hasIn', './_isKey', './_isStrictComparable
    * @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)) {

_baseMerge.js

@@ -1,4 +1,4 @@
-define(['./_Stack', './_arrayEach', './_assignMergeValue', './_baseMergeDeep', './isArray', './isObject', './isTypedArray', './keysIn'], function(Stack, arrayEach, assignMergeValue, baseMergeDeep, isArray, isObject, isTypedArray, keysIn) {
+define(['./_Stack', './_arrayEach', './_assignMergeValue', './_baseKeysIn', './_baseMergeDeep', './isArray', './isObject', './isTypedArray'], function(Stack, arrayEach, assignMergeValue, baseKeysIn, baseMergeDeep, isArray, isObject, isTypedArray) {
 
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
@@ -19,7 +19,7 @@ define(['./_Stack', './_arrayEach', './_assignMergeValue', './_baseMergeDeep', '
       return;
     }
     if (!(isArray(source) || isTypedArray(source))) {
-      var props = keysIn(source);
+      var props = baseKeysIn(source);
     }
     arrayEach(props || source, function(srcValue, key) {
       if (props) {

_baseMergeDeep.js

@@ -63,13 +63,12 @@ define(['./_assignMergeValue', './_baseClone', './_copyArray', './isArguments',
         isCommon = false;
       }
     }
-    stack.set(srcValue, newValue);
-
     if (isCommon) {
       // Recursively merge objects and arrays (susceptible to call stack limits).
+      stack.set(srcValue, newValue);
       mergeFunc(newValue, srcValue, srcIndex, customizer, stack);
+      stack['delete'](srcValue);
     }
-    stack['delete'](srcValue);
     assignMergeValue(object, key, newValue);
   }
 

_baseNth.js

@@ -4,7 +4,7 @@ define(['./_isIndex'], function(isIndex) {
   var undefined;
 
   /**
-   * The base implementation of `_.nth` which doesn't coerce `n` to an integer.
+   * The base implementation of `_.nth` which doesn't coerce arguments.
    *
    * @private
    * @param {Array} array The array to query.

_basePick.js

@@ -1,4 +1,4 @@
-define(['./_arrayReduce'], function(arrayReduce) {
+define(['./_basePickBy'], function(basePickBy) {
 
   /**
    * The base implementation of `_.pick` without support for individual
@@ -11,12 +11,9 @@ define(['./_arrayReduce'], function(arrayReduce) {
    */
   function basePick(object, props) {
     object = Object(object);
-    return arrayReduce(props, function(result, key) {
+    return basePickBy(object, props, function(value, key) {
-      if (key in object) {
+      return key in object;
-        result[key] = object[key];
+    });
-      }
-      return result;
-    }, {});
   }
 
   return basePick;

_basePickBy.js

@@ -1,16 +1,16 @@
-define(['./_getAllKeysIn'], function(getAllKeysIn) {
+define(['./_baseAssignValue'], function(baseAssignValue) {
 
   /**
    * The base implementation of  `_.pickBy` without support for iteratee shorthands.
    *
    * @private
    * @param {Object} object The source object.
+   * @param {string[]} props The property identifiers to pick from.
    * @param {Function} predicate The function invoked per property.
    * @returns {Object} Returns the new object.
    */
-  function basePickBy(object, predicate) {
+  function basePickBy(object, props, predicate) {
     var index = -1,
-        props = getAllKeysIn(object),
         length = props.length,
         result = {};
 
@@ -19,7 +19,7 @@ define(['./_getAllKeysIn'], function(getAllKeysIn) {
           value = object[key];
 
       if (predicate(value, key)) {
-        result[key] = value;
+        baseAssignValue(result, key, value);
       }
     }
     return result;

_baseProperty.js

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

_basePropertyDeep.js

@@ -5,7 +5,7 @@ define(['./_baseGet'], function(baseGet) {
    *
    * @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) {

_basePropertyOf.js

@@ -0,0 +1,20 @@
+define([], function() {
+
+  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
+  var undefined;
+
+  /**
+   * The base implementation of `_.propertyOf` without support for deep paths.
+   *
+   * @private
+   * @param {Object} object The object to query.
+   * @returns {Function} Returns the new accessor function.
+   */
+  function basePropertyOf(object) {
+    return function(key) {
+      return object == null ? undefined : object[key];
+    };
+  }
+
+  return basePropertyOf;
+});

_basePullAll.js

@@ -1,4 +1,4 @@
-define(['./_arrayMap', './_baseIndexOf', './_baseIndexOfWith', './_baseUnary'], function(arrayMap, baseIndexOf, baseIndexOfWith, baseUnary) {
+define(['./_arrayMap', './_baseIndexOf', './_baseIndexOfWith', './_baseUnary', './_copyArray'], function(arrayMap, baseIndexOf, baseIndexOfWith, baseUnary, copyArray) {
 
   /** Used for built-in method references. */
   var arrayProto = Array.prototype;
@@ -23,6 +23,9 @@ define(['./_arrayMap', './_baseIndexOf', './_baseIndexOfWith', './_baseUnary'],
         length = values.length,
         seen = array;
 
+    if (array === values) {
+      values = copyArray(values);
+    }
     if (iteratee) {
       seen = arrayMap(array, baseUnary(iteratee));
     }

_baseRange.js

@@ -6,14 +6,14 @@ define([], function() {
 
   /**
    * The base implementation of `_.range` and `_.rangeRight` which doesn't
-   * coerce arguments to numbers.
+   * coerce arguments.
    *
    * @private
    * @param {number} start The start of the range.
    * @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,

_baseRest.js

@@ -0,0 +1,16 @@
+define(['./identity', './_overRest', './_setToString'], function(identity, overRest, setToString) {
+
+  /**
+   * The base implementation of `_.rest` which doesn't validate or coerce arguments.
+   *
+   * @private
+   * @param {Function} func The function to apply a rest parameter to.
+   * @param {number} [start=func.length-1] The start position of the rest parameter.
+   * @returns {Function} Returns the new function.
+   */
+  function baseRest(func, start) {
+    return setToString(overRest(func, start, identity), func + '');
+  }
+
+  return baseRest;
+});

_baseSample.js

@@ -0,0 +1,15 @@
+define(['./_arraySample', './values'], function(arraySample, values) {
+
+  /**
+   * The base implementation of `_.sample`.
+   *
+   * @private
+   * @param {Array|Object} collection The collection to sample.
+   * @returns {*} Returns the random element.
+   */
+  function baseSample(collection) {
+    return arraySample(values(collection));
+  }
+
+  return baseSample;
+});

_baseSampleSize.js

@@ -0,0 +1,16 @@
+define(['./_shuffleSelf', './values'], function(shuffleSelf, values) {
+
+  /**
+   * The base implementation of `_.sampleSize` without param guards.
+   *
+   * @private
+   * @param {Array|Object} collection The collection to sample.
+   * @param {number} n The number of elements to sample.
+   * @returns {Array} Returns the random elements.
+   */
+  function baseSampleSize(collection, n) {
+    return shuffleSelf(values(collection), n);
+  }
+
+  return baseSampleSize;
+});

_baseSet.js

@@ -7,13 +7,16 @@ define(['./_assignValue', './_castPath', './_isIndex', './_isKey', './isObject',
    * The base implementation of `_.set`.
    *
    * @private
-   * @param {Object} object The object to query.
+   * @param {Object} object The object to modify.
    * @param {Array|string} path The path of the property to set.
    * @param {*} value The value to set.
    * @param {Function} [customizer] The function to customize path creation.
    * @returns {Object} Returns `object`.
    */
   function baseSet(object, path, value, customizer) {
+    if (!isObject(object)) {
+      return object;
+    }
     path = isKey(path, object) ? [path] : castPath(path);
 
     var index = -1,
@@ -22,20 +25,19 @@ define(['./_assignValue', './_castPath', './_isIndex', './_isKey', './isObject',
         nested = object;
 
     while (nested != null && ++index < length) {
-      var key = toKey(path[index]);
+      var key = toKey(path[index]),
-      if (isObject(nested)) {
+          newValue = value;
-        var newValue = value;
+
-        if (index != lastIndex) {
+      if (index != lastIndex) {
-          var objValue = nested[key];
+        var objValue = nested[key];
-          newValue = customizer ? customizer(objValue, key, nested) : undefined;
+        newValue = customizer ? customizer(objValue, key, nested) : undefined;
-          if (newValue === undefined) {
+        if (newValue === undefined) {
-            newValue = objValue == null
+          newValue = isObject(objValue)
-              ? (isIndex(path[index + 1]) ? [] : {})
+            ? objValue
-              : objValue;
+            : (isIndex(path[index + 1]) ? [] : {});
-          }
         }
-        assignValue(nested, key, newValue);
       }
+      assignValue(nested, key, newValue);
       nested = nested[key];
     }
     return object;

_baseSetData.js

@@ -1,7 +1,7 @@
 define(['./identity', './_metaMap'], function(identity, metaMap) {
 
   /**
-   * The base implementation of `setData` without support for hot loop detection.
+   * The base implementation of `setData` without support for hot loop shorting.
    *
    * @private
    * @param {Function} func The function to associate metadata with.

_baseSetToString.js

@@ -0,0 +1,21 @@
+define(['./constant', './identity', './_nativeDefineProperty'], function(constant, identity, nativeDefineProperty) {
+
+  /**
+   * The base implementation of `setToString` without support for hot loop shorting.
+   *
+   * @private
+   * @param {Function} func The function to modify.
+   * @param {Function} string The `toString` result.
+   * @returns {Function} Returns `func`.
+   */
+  var baseSetToString = !nativeDefineProperty ? identity : function(func, string) {
+    return nativeDefineProperty(func, 'toString', {
+      'configurable': true,
+      'enumerable': false,
+      'value': constant(string),
+      'writable': true
+    });
+  };
+
+  return baseSetToString;
+});

_baseShuffle.js

@@ -0,0 +1,15 @@
+define(['./_shuffleSelf', './values'], function(shuffleSelf, values) {
+
+  /**
+   * The base implementation of `_.shuffle`.
+   *
+   * @private
+   * @param {Array|Object} collection The collection to shuffle.
+   * @returns {Array} Returns the new shuffled array.
+   */
+  function baseShuffle(collection) {
+    return shuffleSelf(values(collection));
+  }
+
+  return baseShuffle;
+});

_baseToPairs.js

@@ -7,7 +7,7 @@ define(['./_arrayMap'], function(arrayMap) {
    * @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) {

_baseUnary.js

@@ -1,11 +1,11 @@
 define([], function() {
 
   /**
-   * The base implementation of `_.unary` without support for storing wrapper metadata.
+   * The base implementation of `_.unary` without support for storing metadata.
    *
    * @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) {

_baseUnset.js

@@ -1,4 +1,10 @@
-define(['./_baseHas', './_castPath', './_isKey', './last', './_parent', './_toKey'], function(baseHas, castPath, isKey, last, parent, toKey) {
+define(['./_castPath', './_isKey', './last', './_parent', './_toKey'], function(castPath, isKey, last, parent, toKey) {
+
+  /** Used for built-in method references. */
+  var objectProto = Object.prototype;
+
+  /** Used to check objects for own properties. */
+  var hasOwnProperty = objectProto.hasOwnProperty;
 
   /**
    * The base implementation of `_.unset`.
@@ -13,7 +19,7 @@ define(['./_baseHas', './_castPath', './_isKey', './last', './_parent', './_toKe
     object = parent(object, path);
 
     var key = toKey(last(path));
-    return !(object != null && baseHas(object, key)) || delete object[key];
+    return !(object != null && hasOwnProperty.call(object, key)) || delete object[key];
   }
 
   return baseUnset;

_baseUpdate.js

@@ -4,7 +4,7 @@ define(['./_baseGet', './_baseSet'], function(baseGet, baseSet) {
    * The base implementation of `_.update`.
    *
    * @private
-   * @param {Object} object The object to query.
+   * @param {Object} object The object to modify.
    * @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.

_cacheHas.js

@@ -1,25 +1,15 @@
-define(['./_isKeyable'], function(isKeyable) {
+define([], function() {
-
-  /** Used to stand-in for `undefined` hash values. */
-  var HASH_UNDEFINED = '__lodash_hash_undefined__';
 
   /**
-   * Checks if `value` is in `cache`.
+   * Checks if a `cache` value for `key` exists.
    *
    * @private
-   * @param {Object} cache The set cache to search.
+   * @param {Object} cache The cache to query.
-   * @param {*} value The value to search for.
+   * @param {string} key The key of the entry to check.
-   * @returns {number} Returns `true` if `value` is found, else `false`.
+   * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
    */
-  function cacheHas(cache, value) {
+  function cacheHas(cache, key) {
-    var map = cache.__data__;
+    return cache.has(key);
-    if (isKeyable(value)) {
-      var data = map.__data__,
-          hash = typeof value == 'string' ? data.string : data.hash;
-
-      return hash[value] === HASH_UNDEFINED;
-    }
-    return map.has(value);
   }
 
   return cacheHas;

_cachePush.js

@@ -1,28 +0,0 @@
-define(['./_isKeyable'], function(isKeyable) {
-
-  /** Used to stand-in for `undefined` hash values. */
-  var HASH_UNDEFINED = '__lodash_hash_undefined__';
-
-  /**
-   * Adds `value` to the set cache.
-   *
-   * @private
-   * @name push
-   * @memberOf SetCache
-   * @param {*} value The value to cache.
-   */
-  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);
-    }
-  }
-
-  return cachePush;
-});

_castRest.js

@@ -0,0 +1,15 @@
+define(['./_baseRest'], function(baseRest) {
+
+  /**
+   * A `baseRest` alias which can be replaced with `identity` by module
+   * replacement plugins.
+   *
+   * @private
+   * @type {Function}
+   * @param {Function} func The function to apply a rest parameter to.
+   * @returns {Function} Returns the new function.
+   */
+  var castRest = baseRest;
+
+  return castRest;
+});

_checkGlobal.js

@@ -1,15 +0,0 @@
-define([], function() {
-
-  /**
-   * Checks if `value` is a global object.
-   *
-   * @private
-   * @param {*} value The value to check.
-   * @returns {null|Object} Returns `value` if it's a global object, else `null`.
-   */
-  function checkGlobal(value) {
-    return (value && value.Object === Object) ? value : null;
-  }
-
-  return checkGlobal;
-});

_cloneBuffer.js

@@ -1,4 +1,20 @@
-define([], function() {
+define(['./_root'], function(root) {
+
+  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
+  var undefined;
+
+  /** Detect free variable `exports`. */
+  var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;
+
+  /** Detect free variable `module`. */
+  var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;
+
+  /** Detect the popular CommonJS extension `module.exports`. */
+  var moduleExports = freeModule && freeModule.exports === freeExports;
+
+  /** Built-in value references. */
+  var Buffer = moduleExports ? root.Buffer : undefined,
+      allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined;
 
   /**
    * Creates a clone of  `buffer`.
@@ -12,7 +28,9 @@ define([], function() {
     if (isDeep) {
       return buffer.slice();
     }
-    var result = new buffer.constructor(buffer.length);
+    var length = buffer.length,
+        result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);
+
     buffer.copy(result);
     return result;
   }

_composeArgs.js

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

_composeArgsRight.js

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

_copyObject.js

@@ -1,4 +1,7 @@
-define(['./_assignValue'], function(assignValue) {
+define(['./_assignValue', './_baseAssignValue'], function(assignValue, baseAssignValue) {
+
+  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
+  var undefined;
 
   /**
    * Copies properties of `source` to `object`.
@@ -11,6 +14,7 @@ define(['./_assignValue'], function(assignValue) {
    * @returns {Object} Returns `object`.
    */
   function copyObject(source, props, object, customizer) {
+    var isNew = !object;
     object || (object = {});
 
     var index = -1,
@@ -21,9 +25,16 @@ define(['./_assignValue'], function(assignValue) {
 
       var newValue = customizer
         ? customizer(object[key], source[key], key, object, source)
-        : source[key];
+        : undefined;
 
-      assignValue(object, key, newValue);
+      if (newValue === undefined) {
+        newValue = source[key];
+      }
+      if (isNew) {
+        baseAssignValue(object, key, newValue);
+      } else {
+        assignValue(object, key, newValue);
+      }
     }
     return object;
   }

_coreJsData.js

@@ -0,0 +1,7 @@
+define(['./_root'], function(root) {
+
+  /** Used to detect overreaching core-js shims. */
+  var coreJsData = root['__core-js_shared__'];
+
+  return coreJsData;
+});

_countHolders.js

@@ -14,7 +14,7 @@ define([], function() {
 
     while (length--) {
       if (array[length] === placeholder) {
-        result++;
+        ++result;
       }
     }
     return result;

_createAggregator.js

@@ -13,7 +13,7 @@ define(['./_arrayAggregator', './_baseAggregator', './_baseIteratee', './isArray
       var func = isArray(collection) ? arrayAggregator : baseAggregator,
           accumulator = initializer ? initializer() : {};
 
-      return func(collection, setter, baseIteratee(iteratee), accumulator);
+      return func(collection, setter, baseIteratee(iteratee, 2), accumulator);
     };
   }
 

_createAssigner.js

@@ -1,4 +1,4 @@
-define(['./_isIterateeCall', './rest'], function(isIterateeCall, rest) {
+define(['./_baseRest', './_isIterateeCall'], function(baseRest, isIterateeCall) {
 
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
@@ -11,13 +11,13 @@ define(['./_isIterateeCall', './rest'], function(isIterateeCall, rest) {
    * @returns {Function} Returns the new assigner function.
    */
   function createAssigner(assigner) {
-    return rest(function(object, sources) {
+    return baseRest(function(object, sources) {
       var index = -1,
           length = sources.length,
           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;