Bump to v4.7.0.

LICENSE

@@ -1,7 +1,17 @@
-Copyright 2012-2016 The Dojo Foundation <http://dojofoundation.org/>
-Based on Underscore.js, copyright 2009-2016 Jeremy Ashkenas,
+Copyright jQuery Foundation and other contributors <https://jquery.org/>
+
+Based on Underscore.js, copyright Jeremy Ashkenas,
 DocumentCloud and Investigative Reporters & Editors <http://underscorejs.org/>
 
+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 following license applies to all parts of this software except as
+documented below:
+
+====
+
 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
@@ -20,3 +30,18 @@ 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

@@ -1,13 +1,7 @@
-# lodash v4.0.1
+# lodash v4.7.0
 
 The [lodash](https://lodash.com/) library exported as [Node.js](https://nodejs.org/) modules.
 
-Generated using [lodash-cli](https://www.npmjs.com/package/lodash-cli):
-```bash
-$ lodash modularize exports=node -o ./
-$ lodash -d -o ./lodash.js
-```
-
 ## Installation
 
 Using npm:
@@ -18,41 +12,29 @@ $ npm i --save lodash
 
 In Node.js:
 ```js
-// load the full build
+// Load the full build.
 var _ = require('lodash');
-// load the core build
+// Load the core build.
 var _ = require('lodash/core');
-// load the fp build
-var _ = require('lodash/fp');
-// or a method category
+// Load the fp build for immutable auto-curried iteratee-first data-last methods.
+var fp = require('lodash/fp');
+
+// Load a method category.
 var array = require('lodash/array');
-// or a method (great for smaller builds with browserify/webpack)
+var object = require('lodash/fp/object');
+
+// Load a single method for smaller builds with browserify/rollup/webpack.
 var chunk = require('lodash/chunk');
+var extend = require('lodash/fp/extend');
 ```
 
-See the [package source](https://github.com/lodash/lodash/tree/4.0.1-npm) for more details.
+See the [package source](https://github.com/lodash/lodash/tree/4.7.0-npm) for more details.
 
 **Note:**<br>
 Don’t assign values to the [special variable](http://nodejs.org/api/repl.html#repl_repl_features) `_` when in the REPL.<br>
 Install [n_](https://www.npmjs.com/package/n_) for a REPL that includes lodash by default.
 
-## Module formats
-
-Lodash is also available in a variety of other builds & module formats.
-
- * [lodash](https://www.npmjs.com/package/lodash) & [per method](https://www.npmjs.com/browse/keyword/lodash-modularized) packages
- * [lodash-amd](https://www.npmjs.com/package/lodash-amd)
- * [lodash-es](https://www.npmjs.com/package/lodash-es)
-
-## Further Reading
-
-  * [API Documentation](https://lodash.com/docs)
-  * [Build Differences](https://github.com/lodash/lodash/wiki/Build-Differences)
-  * [Changelog](https://github.com/lodash/lodash/wiki/Changelog)
-  * [Roadmap](https://github.com/lodash/lodash/wiki/Roadmap)
-  * [More Resources](https://github.com/lodash/lodash/wiki/Resources)
-
 ## Support
 
-Tested in Chrome 46-47, Firefox 42-43, IE 9-11, Edge 13, Safari 8-9, Node.js 0.10.x, 0.12.x, 4.x, & 5.x, & PhantomJS 1.9.8.
-Automated [browser](https://saucelabs.com/u/lodash) & [CI](https://travis-ci.org/lodash/lodash/) test runs are available. Special thanks to [Sauce Labs](https://saucelabs.com/) for providing automated browser testing.
+Tested in Chrome 48-49, Firefox 44-45, IE 9-11, Edge 13, Safari 8-9, Node.js 0.10, 0.12, 4, & 5, & PhantomJS 1.9.8.<br>
+Automated [browser](https://saucelabs.com/u/lodash) & [CI](https://travis-ci.org/lodash/lodash/) test runs are available.

_DataView.js

@@ -0,0 +1,7 @@
+var getNative = require('./_getNative'),
+    root = require('./_root');
+
+/* Built-in method references that are verified to be native. */
+var DataView = getNative(root, 'DataView');
+
+module.exports = DataView;

_Hash.js

@@ -1,12 +1,13 @@
-var nativeCreate = require('./nativeCreate');
+var nativeCreate = require('./_nativeCreate');
 
 /** Used for built-in method references. */
-var objectProto = global.Object.prototype;
+var objectProto = Object.prototype;
 
 /**
  * Creates an hash object.
  *
  * @private
+ * @constructor
  * @returns {Object} Returns the new hash object.
  */
 function Hash() {}

_LazyWrapper.js

@@ -1,5 +1,5 @@
-var baseCreate = require('./baseCreate'),
-    baseLodash = require('./baseLodash');
+var baseCreate = require('./_baseCreate'),
+    baseLodash = require('./_baseLodash');
 
 /** Used as references for the maximum length and index of an array. */
 var MAX_ARRAY_LENGTH = 4294967295;
@@ -8,6 +8,7 @@ var MAX_ARRAY_LENGTH = 4294967295;
  * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.
  *
  * @private
+ * @constructor
  * @param {*} value The value to wrap.
  */
 function LazyWrapper(value) {
@@ -20,6 +21,7 @@ function LazyWrapper(value) {
   this.__views__ = [];
 }
 
+// Ensure `LazyWrapper` is an instance of `baseLodash`.
 LazyWrapper.prototype = baseCreate(baseLodash.prototype);
 LazyWrapper.prototype.constructor = LazyWrapper;
 

_LodashWrapper.js

@@ -1,12 +1,12 @@
-var baseCreate = require('./baseCreate'),
-    baseLodash = require('./baseLodash');
+var baseCreate = require('./_baseCreate'),
+    baseLodash = require('./_baseLodash');
 
 /**
  * The base constructor for creating `lodash` wrapper objects.
  *
  * @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;

_Map.js

@@ -0,0 +1,7 @@
+var getNative = require('./_getNative'),
+    root = require('./_root');
+
+/* Built-in method references that are verified to be native. */
+var Map = getNative(root, 'Map');
+
+module.exports = Map;

_MapCache.js

@@ -1,13 +1,14 @@
-var mapClear = require('./mapClear'),
-    mapDelete = require('./mapDelete'),
-    mapGet = require('./mapGet'),
-    mapHas = require('./mapHas'),
-    mapSet = require('./mapSet');
+var mapClear = require('./_mapClear'),
+    mapDelete = require('./_mapDelete'),
+    mapGet = require('./_mapGet'),
+    mapHas = require('./_mapHas'),
+    mapSet = require('./_mapSet');
 
 /**
  * Creates a map cache object to store key-value pairs.
  *
  * @private
+ * @constructor
  * @param {Array} [values] The values to cache.
  */
 function MapCache(values) {
@@ -21,7 +22,7 @@ function MapCache(values) {
   }
 }
 
-// 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 @@
+var getNative = require('./_getNative'),
+    root = require('./_root');
+
+/* Built-in method references that are verified to be native. */
+var Promise = getNative(root, 'Promise');
+
+module.exports = Promise;

_Reflect.js

@@ -1,4 +1,6 @@
+var root = require('./_root');
+
 /** Built-in value references. */
-var Reflect = global.Reflect;
+var Reflect = root.Reflect;
 
 module.exports = Reflect;

_Set.js

@@ -0,0 +1,7 @@
+var getNative = require('./_getNative'),
+    root = require('./_root');
+
+/* Built-in method references that are verified to be native. */
+var Set = getNative(root, 'Set');
+
+module.exports = Set;

_SetCache.js

@@ -1,11 +1,12 @@
-var MapCache = require('./MapCache'),
-    cachePush = require('./cachePush');
+var MapCache = require('./_MapCache'),
+    cachePush = require('./_cachePush');
 
 /**
  *
  * Creates a set cache object to store unique values.
  *
  * @private
+ * @constructor
  * @param {Array} [values] The values to cache.
  */
 function SetCache(values) {
@@ -18,7 +19,7 @@ function SetCache(values) {
   }
 }
 
-// Add functions to the `SetCache`.
+// Add methods to `SetCache`.
 SetCache.prototype.push = cachePush;
 
 module.exports = SetCache;

_Stack.js

@@ -1,13 +1,14 @@
-var stackClear = require('./stackClear'),
-    stackDelete = require('./stackDelete'),
-    stackGet = require('./stackGet'),
-    stackHas = require('./stackHas'),
-    stackSet = require('./stackSet');
+var stackClear = require('./_stackClear'),
+    stackDelete = require('./_stackDelete'),
+    stackGet = require('./_stackGet'),
+    stackHas = require('./_stackHas'),
+    stackSet = require('./_stackSet');
 
 /**
  * Creates a stack cache object to store key-value pairs.
  *
  * @private
+ * @constructor
  * @param {Array} [values] The values to cache.
  */
 function Stack(values) {
@@ -21,7 +22,7 @@ function Stack(values) {
   }
 }
 
-// Add functions to the `Stack` cache.
+// Add methods to `Stack`.
 Stack.prototype.clear = stackClear;
 Stack.prototype['delete'] = stackDelete;
 Stack.prototype.get = stackGet;

_Symbol.js

@@ -1,4 +1,6 @@
+var root = require('./_root');
+
 /** Built-in value references. */
-var Symbol = global.Symbol;
+var Symbol = root.Symbol;
 
 module.exports = Symbol;

_Uint8Array.js

@@ -0,0 +1,6 @@
+var root = require('./_root');
+
+/** Built-in value references. */
+var Uint8Array = root.Uint8Array;
+
+module.exports = Uint8Array;

_WeakMap.js

@@ -0,0 +1,7 @@
+var getNative = require('./_getNative'),
+    root = require('./_root');
+
+/* Built-in method references that are verified to be native. */
+var WeakMap = getNative(root, 'WeakMap');
+
+module.exports = WeakMap;

_addMapEntry.js

@@ -7,6 +7,7 @@
  * @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;
 }

_apply.js

@@ -5,11 +5,11 @@
  * @private
  * @param {Function} func The function to invoke.
  * @param {*} thisArg The `this` binding of `func`.
- * @param {...*} [args] The arguments to invoke `func` with.
+ * @param {...*} args The arguments to invoke `func` with.
  * @returns {*} Returns the result of `func`.
  */
 function apply(func, thisArg, args) {
-  var length = args ? args.length : 0;
+  var length = args.length;
   switch (length) {
     case 0: return func.call(thisArg);
     case 1: return func.call(thisArg, args[0]);

_arrayAggregator.js

@@ -0,0 +1,22 @@
+/**
+ * A specialized version of `baseAggregator` for arrays.
+ *
+ * @private
+ * @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.
+ * @returns {Function} Returns `accumulator`.
+ */
+function arrayAggregator(array, setter, iteratee, accumulator) {
+  var index = -1,
+      length = array.length;
+
+  while (++index < length) {
+    var value = array[index];
+    setter(accumulator, value, iteratee(value), array);
+  }
+  return accumulator;
+}
+
+module.exports = arrayAggregator;

_arrayEvery.js

@@ -5,7 +5,8 @@
  * @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

@@ -10,13 +10,13 @@
 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;

_arrayIncludes.js

@@ -1,4 +1,4 @@
-var baseIndexOf = require('./baseIndexOf');
+var baseIndexOf = require('./_baseIndexOf');
 
 /**
  * A specialized version of `_.includes` for arrays without support for

_arrayIncludesWith.js

@@ -1,6 +1,5 @@
 /**
- * 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

@@ -6,7 +6,8 @@
  * @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

@@ -6,7 +6,8 @@
  * @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

@@ -5,7 +5,8 @@
  * @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,

_assignInDefaults.js

@@ -1,7 +1,7 @@
-var eq = require('../eq');
+var eq = require('./eq');
 
 /** Used for built-in method references. */
-var objectProto = global.Object.prototype;
+var objectProto = Object.prototype;
 
 /** Used to check objects for own properties. */
 var hasOwnProperty = objectProto.hasOwnProperty;

_assignMergeValue.js

@@ -1,7 +1,8 @@
-var eq = require('../eq');
+var eq = require('./eq');
 
 /**
- * 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

@@ -1,7 +1,7 @@
-var eq = require('../eq');
+var eq = require('./eq');
 
 /** Used for built-in method references. */
-var objectProto = global.Object.prototype;
+var objectProto = Object.prototype;
 
 /** Used to check objects for own properties. */
 var hasOwnProperty = objectProto.hasOwnProperty;
@@ -18,8 +18,7 @@ var hasOwnProperty = objectProto.hasOwnProperty;
  */
 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

@@ -1,7 +1,7 @@
-var assocIndexOf = require('./assocIndexOf');
+var assocIndexOf = require('./_assocIndexOf');
 
 /** Used for built-in method references. */
-var arrayProto = global.Array.prototype;
+var arrayProto = Array.prototype;
 
 /** Built-in value references. */
 var splice = arrayProto.splice;
@@ -10,7 +10,7 @@ var splice = arrayProto.splice;
  * 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`.
  */

_assocGet.js

@@ -1,4 +1,4 @@
-var assocIndexOf = require('./assocIndexOf');
+var assocIndexOf = require('./_assocIndexOf');
 
 /**
  * Gets the associative array value for `key`.

_assocHas.js

@@ -1,4 +1,4 @@
-var assocIndexOf = require('./assocIndexOf');
+var assocIndexOf = require('./_assocIndexOf');
 
 /**
  * Checks if an associative array value for `key` exists.

_assocIndexOf.js

@@ -1,8 +1,7 @@
-var eq = require('../eq');
+var eq = require('./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.

_assocSet.js

@@ -1,4 +1,4 @@
-var assocIndexOf = require('./assocIndexOf');
+var assocIndexOf = require('./_assocIndexOf');
 
 /**
  * Sets the associative array `key` to `value`.

_baseAggregator.js

@@ -0,0 +1,21 @@
+var baseEach = require('./_baseEach');
+
+/**
+ * Aggregates elements of `collection` on `accumulator` with keys transformed
+ * by `iteratee` and values set by `setter`.
+ *
+ * @private
+ * @param {Array|Object} collection The collection 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.
+ * @returns {Function} Returns `accumulator`.
+ */
+function baseAggregator(collection, setter, iteratee, accumulator) {
+  baseEach(collection, function(value, key, collection) {
+    setter(accumulator, value, iteratee(value), collection);
+  });
+  return accumulator;
+}
+
+module.exports = baseAggregator;

_baseAssign.js

@@ -1,5 +1,5 @@
-var copyObject = require('./copyObject'),
-    keys = require('../keys');
+var copyObject = require('./_copyObject'),
+    keys = require('./keys');
 
 /**
  * The base implementation of `_.assign` without support for multiple sources

_baseAt.js

@@ -1,4 +1,4 @@
-var get = require('../get');
+var get = require('./get');
 
 /**
  * The base implementation of `_.at` without support for individual paths.

_baseCastArrayLikeObject.js

@@ -0,0 +1,14 @@
+var isArrayLikeObject = require('./isArrayLikeObject');
+
+/**
+ * Casts `value` to an empty array if it's not an array like object.
+ *
+ * @private
+ * @param {*} value The value to inspect.
+ * @returns {Array|Object} Returns the cast array-like object.
+ */
+function baseCastArrayLikeObject(value) {
+  return isArrayLikeObject(value) ? value : [];
+}
+
+module.exports = baseCastArrayLikeObject;

_baseCastFunction.js

@@ -0,0 +1,14 @@
+var identity = require('./identity');
+
+/**
+ * Casts `value` to `identity` if it's not a function.
+ *
+ * @private
+ * @param {*} value The value to inspect.
+ * @returns {Function} Returns cast function.
+ */
+function baseCastFunction(value) {
+  return typeof value == 'function' ? value : identity;
+}
+
+module.exports = baseCastFunction;

_baseCastKey.js

@@ -0,0 +1,14 @@
+var isSymbol = require('./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 + '');
+}
+
+module.exports = baseCastKey;

_baseCastPath.js

@@ -0,0 +1,15 @@
+var isArray = require('./isArray'),
+    stringToPath = require('./_stringToPath');
+
+/**
+ * Casts `value` to a path array if it's not one.
+ *
+ * @private
+ * @param {*} value The value to inspect.
+ * @returns {Array} Returns the cast property path array.
+ */
+function baseCastPath(value) {
+  return isArray(value) ? value : stringToPath(value);
+}
+
+module.exports = baseCastPath;

_baseClone.js

@@ -1,17 +1,20 @@
-var Stack = require('./Stack'),
-    arrayEach = require('./arrayEach'),
-    assignValue = require('./assignValue'),
-    baseAssign = require('./baseAssign'),
-    baseForOwn = require('./baseForOwn'),
-    copyArray = require('./copyArray'),
-    copySymbols = require('./copySymbols'),
-    getTag = require('./getTag'),
-    initCloneArray = require('./initCloneArray'),
-    initCloneByTag = require('./initCloneByTag'),
-    initCloneObject = require('./initCloneObject'),
-    isArray = require('../isArray'),
-    isHostObject = require('./isHostObject'),
-    isObject = require('../isObject');
+var Stack = require('./_Stack'),
+    arrayEach = require('./_arrayEach'),
+    assignValue = require('./_assignValue'),
+    baseAssign = require('./_baseAssign'),
+    cloneBuffer = require('./_cloneBuffer'),
+    copyArray = require('./_copyArray'),
+    copySymbols = require('./_copySymbols'),
+    getAllKeys = require('./_getAllKeys'),
+    getTag = require('./_getTag'),
+    initCloneArray = require('./_initCloneArray'),
+    initCloneByTag = require('./_initCloneByTag'),
+    initCloneObject = require('./_initCloneObject'),
+    isArray = require('./isArray'),
+    isBuffer = require('./isBuffer'),
+    isHostObject = require('./_isHostObject'),
+    isObject = require('./isObject'),
+    keys = require('./keys');
 
 /** `Object#toString` result references. */
 var argsTag = '[object Arguments]',
@@ -31,6 +34,7 @@ var argsTag = '[object Arguments]',
     weakMapTag = '[object WeakMap]';
 
 var arrayBufferTag = '[object ArrayBuffer]',
+    dataViewTag = '[object DataView]',
     float32Tag = '[object Float32Array]',
     float64Tag = '[object Float64Array]',
     int8Tag = '[object Int8Array]',
@@ -44,16 +48,16 @@ var arrayBufferTag = '[object ArrayBuffer]',
 /** 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;
 
@@ -64,13 +68,14 @@ cloneableTags[weakMapTag] = false;
  * @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);
@@ -91,6 +96,9 @@ function baseClone(value, isDeep, customizer, key, object, stack) {
     var tag = getTag(value),
         isFunc = tag == funcTag || tag == genTag;
 
+    if (isBuffer(value)) {
+      return cloneBuffer(value, isDeep);
+    }
     if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
       if (isHostObject(value)) {
         return object ? value : {};
@@ -100,9 +108,10 @@ function baseClone(value, isDeep, customizer, key, object, stack) {
         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.
@@ -113,11 +122,18 @@ function baseClone(value, isDeep, customizer, key, object, stack) {
   }
   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;
 }
 
 module.exports = baseClone;

_baseConforms.js

@@ -1,4 +1,4 @@
-var keys = require('../keys');
+var keys = require('./keys');
 
 /**
  * The base implementation of `_.conforms` which doesn't clone `source`.
@@ -21,7 +21,8 @@ function baseConforms(source) {
           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;
       }
     }

_baseCreate.js

@@ -0,0 +1,18 @@
+var isObject = require('./isObject');
+
+/** Built-in value references. */
+var objectCreate = Object.create;
+
+/**
+ * The base implementation of `_.create` without support for assigning
+ * properties to the created object.
+ *
+ * @private
+ * @param {Object} prototype The object to inherit from.
+ * @returns {Object} Returns the new object.
+ */
+function baseCreate(proto) {
+  return isObject(proto) ? objectCreate(proto) : {};
+}
+
+module.exports = baseCreate;

_baseDelay.js

@@ -8,7 +8,7 @@ var FUNC_ERROR_TEXT = 'Expected a function';
  * @private
  * @param {Function} func The function to delay.
  * @param {number} wait The number of milliseconds to delay invocation.
- * @param {Object} args The arguments provide to `func`.
+ * @param {Object} args The arguments to provide to `func`.
  * @returns {number} Returns the timer id.
  */
 function baseDelay(func, wait, args) {

_baseDifference.js

@@ -1,16 +1,16 @@
-var SetCache = require('./SetCache'),
-    arrayIncludes = require('./arrayIncludes'),
-    arrayIncludesWith = require('./arrayIncludesWith'),
-    arrayMap = require('./arrayMap'),
-    baseUnary = require('./baseUnary'),
-    cacheHas = require('./cacheHas');
+var SetCache = require('./_SetCache'),
+    arrayIncludes = require('./_arrayIncludes'),
+    arrayIncludesWith = require('./_arrayIncludesWith'),
+    arrayMap = require('./_arrayMap'),
+    baseUnary = require('./_baseUnary'),
+    cacheHas = require('./_cacheHas');
 
 /** Used as the size to enable large array optimizations. */
 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.

_baseEach.js

@@ -1,5 +1,5 @@
-var baseForOwn = require('./baseForOwn'),
-    createBaseEach = require('./createBaseEach');
+var baseForOwn = require('./_baseForOwn'),
+    createBaseEach = require('./_createBaseEach');
 
 /**
  * The base implementation of `_.forEach` without support for iteratee shorthands.

_baseEachRight.js

@@ -1,5 +1,5 @@
-var baseForOwnRight = require('./baseForOwnRight'),
-    createBaseEach = require('./createBaseEach');
+var baseForOwnRight = require('./_baseForOwnRight'),
+    createBaseEach = require('./_createBaseEach');
 
 /**
  * The base implementation of `_.forEachRight` without support for iteratee shorthands.

_baseEvery.js

@@ -1,4 +1,4 @@
-var baseEach = require('./baseEach');
+var baseEach = require('./_baseEach');
 
 /**
  * The base implementation of `_.every` without support for iteratee shorthands.
@@ -6,7 +6,8 @@ var baseEach = require('./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;

_baseFill.js

@@ -1,5 +1,5 @@
-var toInteger = require('../toInteger'),
-    toLength = require('../toLength');
+var toInteger = require('./toInteger'),
+    toLength = require('./toLength');
 
 /**
  * The base implementation of `_.fill` without an iteratee call guard.

_baseFilter.js

@@ -1,4 +1,4 @@
-var baseEach = require('./baseEach');
+var baseEach = require('./_baseEach');
 
 /**
  * The base implementation of `_.filter` without support for iteratee shorthands.

_baseFind.js

@@ -7,7 +7,8 @@
  * @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) {

_baseFlatten.js

@@ -1,19 +1,19 @@
-var arrayPush = require('./arrayPush'),
-    isArguments = require('../isArguments'),
-    isArray = require('../isArray'),
-    isArrayLikeObject = require('../isArrayLikeObject');
+var arrayPush = require('./_arrayPush'),
+    isArguments = require('./isArguments'),
+    isArray = require('./isArray'),
+    isArrayLikeObject = require('./isArrayLikeObject');
 
 /**
  * The base implementation of `_.flatten` with support for restricting flattening.
  *
  * @private
  * @param {Array} array The array to flatten.
- * @param {boolean} [isDeep] Specify a deep flatten.
+ * @param {number} depth The maximum recursion depth.
  * @param {boolean} [isStrict] Restrict flattening to arrays-like objects.
  * @param {Array} [result=[]] The initial result value.
  * @returns {Array} Returns the new flattened array.
  */
-function baseFlatten(array, isDeep, isStrict, result) {
+function baseFlatten(array, depth, isStrict, result) {
   result || (result = []);
 
   var index = -1,
@@ -21,11 +21,11 @@ function baseFlatten(array, isDeep, isStrict, result) {
 
   while (++index < length) {
     var value = array[index];
-    if (isArrayLikeObject(value) &&
+    if (depth > 0 && isArrayLikeObject(value) &&
         (isStrict || isArray(value) || isArguments(value))) {
-      if (isDeep) {
+      if (depth > 1) {
         // Recursively flatten arrays (susceptible to call stack limits).
-        baseFlatten(value, isDeep, isStrict, result);
+        baseFlatten(value, depth - 1, isStrict, result);
       } else {
         arrayPush(result, value);
       }

_baseFor.js

@@ -1,10 +1,9 @@
-var createBaseFor = require('./createBaseFor');
+var createBaseFor = require('./_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.

_baseForOwn.js

@@ -1,5 +1,5 @@
-var baseFor = require('./baseFor'),
-    keys = require('../keys');
+var baseFor = require('./_baseFor'),
+    keys = require('./keys');
 
 /**
  * The base implementation of `_.forOwn` without support for iteratee shorthands.

_baseForOwnRight.js

@@ -1,5 +1,5 @@
-var baseForRight = require('./baseForRight'),
-    keys = require('../keys');
+var baseForRight = require('./_baseForRight'),
+    keys = require('./keys');
 
 /**
  * The base implementation of `_.forOwnRight` without support for iteratee shorthands.

_baseForRight.js

@@ -1,4 +1,4 @@
-var createBaseFor = require('./createBaseFor');
+var createBaseFor = require('./_createBaseFor');
 
 /**
  * This function is like `baseFor` except that it iterates over properties

_baseFunctions.js

@@ -1,9 +1,9 @@
-var arrayFilter = require('./arrayFilter'),
-    isFunction = require('../isFunction');
+var arrayFilter = require('./_arrayFilter'),
+    isFunction = require('./isFunction');
 
 /**
  * The base implementation of `_.functions` which creates an array of
- * `object` function property names filtered from those provided.
+ * `object` function property names filtered from `props`.
  *
  * @private
  * @param {Object} object The object to inspect.

_baseGet.js

@@ -1,5 +1,5 @@
-var baseToPath = require('./baseToPath'),
-    isKey = require('./isKey');
+var baseCastPath = require('./_baseCastPath'),
+    isKey = require('./_isKey');
 
 /**
  * The base implementation of `_.get` without support for default values.
@@ -10,7 +10,7 @@ var baseToPath = require('./baseToPath'),
  * @returns {*} Returns the resolved value.
  */
 function baseGet(object, path) {
-  path = isKey(path, object) ? [path + ''] : baseToPath(path);
+  path = isKey(path, object) ? [path] : baseCastPath(path);
 
   var index = 0,
       length = path.length;

_baseGetAllKeys.js

@@ -0,0 +1,22 @@
+var arrayPush = require('./_arrayPush'),
+    isArray = require('./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));
+}
+
+module.exports = baseGetAllKeys;

_baseHas.js

@@ -1,12 +1,11 @@
+var getPrototype = require('./_getPrototype');
+
 /** Used for built-in method references. */
-var objectProto = global.Object.prototype;
+var objectProto = Object.prototype;
 
 /** 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.
  *
@@ -20,7 +19,7 @@ function baseHas(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 && getPrototypeOf(object) === null);
+    (typeof object == 'object' && key in object && getPrototype(object) === null);
 }
 
 module.exports = baseHas;

_baseIndexOf.js

@@ -1,4 +1,4 @@
-var indexOfNaN = require('./indexOfNaN');
+var indexOfNaN = require('./_indexOfNaN');
 
 /**
  * The base implementation of `_.indexOf` without `fromIndex` bounds checks.

_baseIndexOfWith.js

@@ -0,0 +1,23 @@
+/**
+ * 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;
+}
+
+module.exports = baseIndexOfWith;

_baseIntersection.js

@@ -1,9 +1,12 @@
-var SetCache = require('./SetCache'),
-    arrayIncludes = require('./arrayIncludes'),
-    arrayIncludesWith = require('./arrayIncludesWith'),
-    arrayMap = require('./arrayMap'),
-    baseUnary = require('./baseUnary'),
-    cacheHas = require('./cacheHas');
+var SetCache = require('./_SetCache'),
+    arrayIncludes = require('./_arrayIncludes'),
+    arrayIncludesWith = require('./_arrayIncludesWith'),
+    arrayMap = require('./_arrayMap'),
+    baseUnary = require('./_baseUnary'),
+    cacheHas = require('./_cacheHas');
+
+/* 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
@@ -17,9 +20,11 @@ var SetCache = require('./SetCache'),
  */
 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--) {
@@ -27,26 +32,32 @@ function baseIntersection(arrays, iteratee, comparator) {
     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;
 
-    if (!(seen ? cacheHas(seen, computed) : includes(result, computed, comparator))) {
-      var othIndex = othLength;
+    if (!(seen
+          ? cacheHas(seen, computed)
+          : includes(result, computed, comparator)
+        )) {
+      othIndex = othLength;
       while (--othIndex) {
         var cache = caches[othIndex];
-        if (!(cache ? cacheHas(cache, computed) : includes(arrays[othIndex], computed, comparator))) {
+        if (!(cache
+              ? cacheHas(cache, computed)
+              : includes(arrays[othIndex], computed, comparator))
+            ) {
           continue outer;
         }
       }

_baseInverter.js

@@ -0,0 +1,21 @@
+var baseForOwn = require('./_baseForOwn');
+
+/**
+ * The base implementation of `_.invert` and `_.invertBy` which inverts
+ * `object` with values transformed by `iteratee` and set by `setter`.
+ *
+ * @private
+ * @param {Object} object The object to iterate over.
+ * @param {Function} setter The function to set `accumulator` values.
+ * @param {Function} iteratee The iteratee to transform values.
+ * @param {Object} accumulator The initial inverted object.
+ * @returns {Function} Returns `accumulator`.
+ */
+function baseInverter(object, setter, iteratee, accumulator) {
+  baseForOwn(object, function(value, key, object) {
+    setter(accumulator, iteratee(value), key, object);
+  });
+  return accumulator;
+}
+
+module.exports = baseInverter;

_baseInvoke.js

@@ -1,8 +1,8 @@
-var apply = require('./apply'),
-    baseToPath = require('./baseToPath'),
-    isKey = require('./isKey'),
-    last = require('../last'),
-    parent = require('./parent');
+var apply = require('./_apply'),
+    baseCastPath = require('./_baseCastPath'),
+    isKey = require('./_isKey'),
+    last = require('./last'),
+    parent = require('./_parent');
 
 /**
  * The base implementation of `_.invoke` without support for individual
@@ -16,7 +16,7 @@ var apply = require('./apply'),
  */
 function baseInvoke(object, path, args) {
   if (!isKey(path, object)) {
-    path = baseToPath(path);
+    path = baseCastPath(path);
     object = parent(object, path);
     path = last(path);
   }

_baseIsEqual.js

@@ -1,6 +1,6 @@
-var baseIsEqualDeep = require('./baseIsEqualDeep'),
-    isObject = require('../isObject'),
-    isObjectLike = require('../isObjectLike');
+var baseIsEqualDeep = require('./_baseIsEqualDeep'),
+    isObject = require('./isObject'),
+    isObjectLike = require('./isObjectLike');
 
 /**
  * The base implementation of `_.isEqual` which supports partial comparisons

_baseIsEqualDeep.js

@@ -1,11 +1,11 @@
-var Stack = require('./Stack'),
-    equalArrays = require('./equalArrays'),
-    equalByTag = require('./equalByTag'),
-    equalObjects = require('./equalObjects'),
-    getTag = require('./getTag'),
-    isArray = require('../isArray'),
-    isHostObject = require('./isHostObject'),
-    isTypedArray = require('../isTypedArray');
+var Stack = require('./_Stack'),
+    equalArrays = require('./_equalArrays'),
+    equalByTag = require('./_equalByTag'),
+    equalObjects = require('./_equalObjects'),
+    getTag = require('./_getTag'),
+    isArray = require('./isArray'),
+    isHostObject = require('./_isHostObject'),
+    isTypedArray = require('./isTypedArray');
 
 /** Used to compose bitmasks for comparison styles. */
 var PARTIAL_COMPARE_FLAG = 2;
@@ -16,7 +16,7 @@ var argsTag = '[object Arguments]',
     objectTag = '[object Object]';
 
 /** Used for built-in method references. */
-var objectProto = global.Object.prototype;
+var objectProto = Object.prototype;
 
 /** Used to check objects for own properties. */
 var hasOwnProperty = objectProto.hasOwnProperty;
@@ -31,7 +31,8 @@ var hasOwnProperty = objectProto.hasOwnProperty;
  * @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`.
  */
@@ -43,41 +44,39 @@ function baseIsEqualDeep(object, other, equalFunc, customizer, bitmask, stack) {
 
   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);
 }
 
 module.exports = baseIsEqualDeep;

_baseIsMatch.js

@@ -1,5 +1,5 @@
-var Stack = require('./Stack'),
-    baseIsEqual = require('./baseIsEqual');
+var Stack = require('./_Stack'),
+    baseIsEqual = require('./_baseIsEqual');
 
 /** Used to compose bitmasks for comparison styles. */
 var UNORDERED_COMPARE_FLAG = 1,
@@ -44,9 +44,10 @@ function baseIsMatch(object, source, matchData, customizer) {
         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

@@ -1,8 +1,8 @@
-var baseMatches = require('./baseMatches'),
-    baseMatchesProperty = require('./baseMatchesProperty'),
-    identity = require('../identity'),
-    isArray = require('../isArray'),
-    property = require('../property');
+var baseMatches = require('./_baseMatches'),
+    baseMatchesProperty = require('./_baseMatchesProperty'),
+    identity = require('./identity'),
+    isArray = require('./isArray'),
+    property = require('./property');
 
 /**
  * The base implementation of `_.iteratee`.
@@ -12,14 +12,15 @@ var baseMatches = require('./baseMatches'),
  * @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);

_baseKeys.js

@@ -6,7 +6,6 @@ var nativeKeys = Object.keys;
  * property of prototypes or treat sparse arrays as dense.
  *
  * @private
- * @type Function
  * @param {Object} object The object to query.
  * @returns {Array} Returns the array of property names.
  */

_baseKeysIn.js

@@ -1,8 +1,8 @@
-var Reflect = require('./Reflect'),
-    iteratorToArray = require('./iteratorToArray');
+var Reflect = require('./_Reflect'),
+    iteratorToArray = require('./_iteratorToArray');
 
 /** Used for built-in method references. */
-var objectProto = global.Object.prototype;
+var objectProto = Object.prototype;
 
 /** Built-in value references. */
 var enumerate = Reflect ? Reflect.enumerate : undefined,

_baseLodash.js

@@ -1,5 +1,5 @@
 /**
- * The function whose prototype all chaining wrappers inherit from.
+ * The function whose prototype chain sequence wrappers inherit from.
  *
  * @private
  */

_baseMap.js

@@ -1,5 +1,5 @@
-var baseEach = require('./baseEach'),
-    isArrayLike = require('../isArrayLike');
+var baseEach = require('./_baseEach'),
+    isArrayLike = require('./isArrayLike');
 
 /**
  * The base implementation of `_.map` without support for iteratee shorthands.

_baseMatches.js

@@ -1,5 +1,5 @@
-var baseIsMatch = require('./baseIsMatch'),
-    getMatchData = require('./getMatchData');
+var baseIsMatch = require('./_baseIsMatch'),
+    getMatchData = require('./_getMatchData');
 
 /**
  * The base implementation of `_.matches` which doesn't clone `source`.

_baseMatchesProperty.js

@@ -1,6 +1,6 @@
-var baseIsEqual = require('./baseIsEqual'),
-    get = require('../get'),
-    hasIn = require('../hasIn');
+var baseIsEqual = require('./_baseIsEqual'),
+    get = require('./get'),
+    hasIn = require('./hasIn');
 
 /** Used to compose bitmasks for comparison styles. */
 var UNORDERED_COMPARE_FLAG = 1,

_baseMean.js

@@ -0,0 +1,20 @@
+var baseSum = require('./_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;
+}
+
+module.exports = baseMean;

_baseMerge.js

@@ -1,11 +1,11 @@
-var Stack = require('./Stack'),
-    arrayEach = require('./arrayEach'),
-    assignMergeValue = require('./assignMergeValue'),
-    baseMergeDeep = require('./baseMergeDeep'),
-    isArray = require('../isArray'),
-    isObject = require('../isObject'),
-    isTypedArray = require('../isTypedArray'),
-    keysIn = require('../keysIn');
+var Stack = require('./_Stack'),
+    arrayEach = require('./_arrayEach'),
+    assignMergeValue = require('./_assignMergeValue'),
+    baseMergeDeep = require('./_baseMergeDeep'),
+    isArray = require('./isArray'),
+    isObject = require('./isObject'),
+    isTypedArray = require('./isTypedArray'),
+    keysIn = require('./keysIn');
 
 /**
  * The base implementation of `_.merge` without support for multiple sources.
@@ -15,13 +15,16 @@ var Stack = require('./Stack'),
  * @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;
@@ -32,7 +35,10 @@ function baseMerge(object, source, srcIndex, customizer, stack) {
       baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);
     }
     else {
-      var newValue = customizer ? customizer(object[key], srcValue, (key + ''), object, source, stack) : undefined;
+      var newValue = customizer
+        ? customizer(object[key], srcValue, (key + ''), object, source, stack)
+        : undefined;
+
       if (newValue === undefined) {
         newValue = srcValue;
       }

_baseMergeDeep.js

@@ -1,14 +1,14 @@
-var assignMergeValue = require('./assignMergeValue'),
-    baseClone = require('./baseClone'),
-    copyArray = require('./copyArray'),
-    isArguments = require('../isArguments'),
-    isArray = require('../isArray'),
-    isArrayLikeObject = require('../isArrayLikeObject'),
-    isFunction = require('../isFunction'),
-    isObject = require('../isObject'),
-    isPlainObject = require('../isPlainObject'),
-    isTypedArray = require('../isTypedArray'),
-    toPlainObject = require('../toPlainObject');
+var assignMergeValue = require('./_assignMergeValue'),
+    baseClone = require('./_baseClone'),
+    copyArray = require('./_copyArray'),
+    isArguments = require('./isArguments'),
+    isArray = require('./isArray'),
+    isArrayLikeObject = require('./isArrayLikeObject'),
+    isFunction = require('./isFunction'),
+    isObject = require('./isObject'),
+    isPlainObject = require('./isPlainObject'),
+    isTypedArray = require('./isTypedArray'),
+    toPlainObject = require('./toPlainObject');
 
 /**
  * A specialized version of `baseMerge` for arrays and objects which performs
@@ -22,31 +22,36 @@ var assignMergeValue = require('./assignMergeValue'),
  * @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],
       srcValue = source[key],
-      stacked = stack.get(srcValue) || stack.get(objValue);
+      stacked = stack.get(srcValue);
 
   if (stacked) {
     assignMergeValue(object, key, stacked);
     return;
   }
-  var newValue = customizer ? customizer(objValue, srcValue, (key + ''), object, source, stack) : undefined,
-      isCommon = newValue === undefined;
+  var newValue = customizer
+    ? customizer(objValue, srcValue, (key + ''), object, source, stack)
+    : undefined;
+
+  var isCommon = newValue === undefined;
 
   if (isCommon) {
     newValue = srcValue;
     if (isArray(srcValue) || isTypedArray(srcValue)) {
       if (isArray(objValue)) {
-        newValue = srcIndex ? copyArray(objValue) : objValue;
+        newValue = objValue;
       }
       else if (isArrayLikeObject(objValue)) {
         newValue = copyArray(objValue);
       }
       else {
-        newValue = baseClone(srcValue);
+        isCommon = false;
+        newValue = baseClone(srcValue, true);
       }
     }
     else if (isPlainObject(srcValue) || isArguments(srcValue)) {
@@ -54,10 +59,11 @@ function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, sta
         newValue = toPlainObject(objValue);
       }
       else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) {
-        newValue = baseClone(srcValue);
+        isCommon = false;
+        newValue = baseClone(srcValue, true);
       }
       else {
-        newValue = srcIndex ? baseClone(objValue) : objValue;
+        newValue = objValue;
       }
     }
     else {
@@ -70,6 +76,7 @@ function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, sta
     // 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

@@ -1,8 +1,9 @@
-var arrayMap = require('./arrayMap'),
-    baseIteratee = require('./baseIteratee'),
-    baseMap = require('./baseMap'),
-    baseSortBy = require('./baseSortBy'),
-    compareMultiple = require('./compareMultiple');
+var arrayMap = require('./_arrayMap'),
+    baseIteratee = require('./_baseIteratee'),
+    baseMap = require('./_baseMap'),
+    baseSortBy = require('./_baseSortBy'),
+    compareMultiple = require('./_compareMultiple'),
+    identity = require('./identity');
 
 /**
  * The base implementation of `_.orderBy` without param guards.
@@ -14,12 +15,8 @@ var arrayMap = require('./arrayMap'),
  * @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

@@ -1,12 +1,12 @@
-var arrayReduce = require('./arrayReduce');
+var arrayReduce = require('./_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 @@
-var baseForIn = require('./baseForIn');
+var getAllKeysIn = require('./_getAllKeysIn');
 
 /**
  * The base implementation of  `_.pickBy` without support for iteratee shorthands.
@@ -9,12 +9,19 @@ var baseForIn = require('./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;
 }
 

_basePropertyDeep.js

@@ -1,4 +1,4 @@
-var baseGet = require('./baseGet');
+var baseGet = require('./_baseGet');
 
 /**
  * A specialized version of `baseProperty` which supports deep paths.

_basePullAll.js

@@ -1,8 +1,10 @@
-var arrayMap = require('./arrayMap'),
-    baseIndexOf = require('./baseIndexOf');
+var arrayMap = require('./_arrayMap'),
+    baseIndexOf = require('./_baseIndexOf'),
+    baseIndexOfWith = require('./_baseIndexOfWith'),
+    baseUnary = require('./_baseUnary');
 
 /** Used for built-in method references. */
-var arrayProto = global.Array.prototype;
+var arrayProto = Array.prototype;
 
 /** Built-in value references. */
 var splice = arrayProto.splice;
@@ -15,22 +17,24 @@ var splice = arrayProto.splice;
  * @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 basePullAllBy(array, values, iteratee) {
-  var index = -1,
+function basePullAll(array, values, iteratee, comparator) {
+  var indexOf = comparator ? baseIndexOfWith : baseIndexOf,
+      index = -1,
       length = values.length,
       seen = array;
 
   if (iteratee) {
-    seen = arrayMap(array, function(value) { return iteratee(value); });
+    seen = arrayMap(array, baseUnary(iteratee));
   }
   while (++index < length) {
     var fromIndex = 0,
         value = values[index],
         computed = iteratee ? iteratee(value) : value;
 
-    while ((fromIndex = baseIndexOf(seen, computed, fromIndex)) > -1) {
+    while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) {
       if (seen !== array) {
         splice.call(seen, fromIndex, 1);
       }
@@ -40,4 +44,4 @@ function basePullAllBy(array, values, iteratee) {
   return array;
 }
 
-module.exports = basePullAllBy;
+module.exports = basePullAll;

_basePullAt.js

@@ -1,11 +1,11 @@
-var baseToPath = require('./baseToPath'),
-    isIndex = require('./isIndex'),
-    isKey = require('./isKey'),
-    last = require('../last'),
-    parent = require('./parent');
+var baseCastPath = require('./_baseCastPath'),
+    isIndex = require('./_isIndex'),
+    isKey = require('./_isKey'),
+    last = require('./last'),
+    parent = require('./_parent');
 
 /** Used for built-in method references. */
-var arrayProto = global.Array.prototype;
+var arrayProto = Array.prototype;
 
 /** Built-in value references. */
 var splice = arrayProto.splice;
@@ -31,7 +31,7 @@ function basePullAt(array, indexes) {
         splice.call(array, index, 1);
       }
       else if (!isKey(index, array)) {
-        var path = baseToPath(index),
+        var path = baseCastPath(index),
             object = parent(array, path);
 
         if (object != null) {

_baseReduce.js

@@ -6,7 +6,8 @@
  * @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.
  */