Bump to v4.16.2.

README.md

@@ -1,9 +1,9 @@
-# lodash-amd v4.13.0
+# 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/4.13.0-amd) for more details.
+See the [package source](https://github.com/lodash/lodash/tree/4.16.2-amd) for more details.

_Reflect.js

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

_Stack.js

@@ -8,7 +8,8 @@ define(['./_ListCache', './_stackClear', './_stackDelete', './_stackGet', './_st
    * @param {Array} [entries] The key-value pairs to cache.
    */
   function Stack(entries) {
-    this.__data__ = new ListCache(entries);
+    var data = this.__data__ = new ListCache(entries);
+    this.size = data.size;
   }
 
   // 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]);

_arrayIncludes.js

@@ -5,7 +5,7 @@ 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`.
    */

_arrayIncludesWith.js

@@ -4,7 +4,7 @@ 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`.

_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;
+});

_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;
+});

_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`.
    */

_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;
+});

_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

@@ -1,7 +1,4 @@
-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`.
@@ -11,25 +8,9 @@ define(['./keys'], function(keys) {
    * @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') {

_baseFindIndex.js

@@ -5,7 +5,7 @@ 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.

_baseFindKey.js

@@ -6,7 +6,7 @@ define([], function() {
    * using `eachFunc`.
    *
    * @private
-   * @param {Array|Object} collection The collection to search.
+   * @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`.

_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;
@@ -15,12 +15,7 @@ define(['./_getPrototype'], function(getPrototype) {
    * @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 object != null &&
-      (hasOwnProperty.call(object, key) ||
-        (typeof object == 'object' && key in object && getPrototype(object) === null));
   }
 
   return baseHas;

_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

@@ -1,8 +1,8 @@
-define(['./isFunction', './_isHostObject', './_isMasked', './isObject', './_toSource'], function(isFunction, isHostObject, isMasked, isObject, toSource) {
+define(['./isFunction', './_isMasked', './isObject', './_toSource'], function(isFunction, isMasked, isObject, toSource) {
 
   /**
    * Used to match `RegExp`
-   * [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns).
+   * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
    */
   var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;
 
@@ -10,10 +10,11 @@ define(['./isFunction', './_isHostObject', './_isMasked', './isObject', './_toSo
   var reIsHostCtor = /^\[object .+?Constructor\]$/;
 
   /** Used for built-in method references. */
-  var objectProto = Object.prototype;
+  var funcProto = Function.prototype,
+      objectProto = Object.prototype;
 
   /** Used to resolve the decompiled source of functions. */
-  var funcToString = Function.prototype.toString;
+  var funcToString = funcProto.toString;
 
   /** Used to check objects for own properties. */
   var hasOwnProperty = objectProto.hasOwnProperty;
@@ -36,7 +37,7 @@ define(['./isFunction', './_isHostObject', './_isMasked', './isObject', './_toSo
     if (!isObject(value) || isMasked(value)) {
       return false;
     }
-    var pattern = (isFunction(value) || isHostObject(value)) ? reIsNative : reIsHostCtor;
+    var pattern = isFunction(value) ? reIsNative : reIsHostCtor;
     return pattern.test(toSource(value));
   }
 

_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.

_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;

_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;
+});

_baseRange.js

@@ -6,7 +6,7 @@ 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.

_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;
+});

_baseUnary.js

@@ -1,7 +1,7 @@
 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.

_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

@@ -1,7 +1,7 @@
 define([], function() {
 
   /**
-   * Checks if a cache value for `key` exists.
+   * Checks if a `cache` value for `key` exists.
    *
    * @private
    * @param {Object} cache The cache to query.

_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;
   }

_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;
   }

_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;
@@ -11,7 +11,7 @@ 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,

_createBind.js

@@ -1,6 +1,6 @@
-define(['./_createCtorWrapper', './_root'], function(createCtorWrapper, root) {
+define(['./_createCtor', './_root'], function(createCtor, root) {
 
-  /** Used to compose bitmasks for wrapper metadata. */
+  /** Used to compose bitmasks for function metadata. */
   var BIND_FLAG = 1;
 
   /**
@@ -9,14 +9,13 @@ define(['./_createCtorWrapper', './_root'], function(createCtorWrapper, root) {
    *
    * @private
    * @param {Function} func The function to wrap.
-   * @param {number} bitmask The bitmask of wrapper flags. See `createWrapper`
+   * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
-   *  for more details.
    * @param {*} [thisArg] The `this` binding of `func`.
    * @returns {Function} Returns the new wrapped function.
    */
-  function createBaseWrapper(func, bitmask, thisArg) {
+  function createBind(func, bitmask, thisArg) {
     var isBind = bitmask & BIND_FLAG,
-        Ctor = createCtorWrapper(func);
+        Ctor = createCtor(func);
 
     function wrapper() {
       var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
@@ -25,5 +24,5 @@ define(['./_createCtorWrapper', './_root'], function(createCtorWrapper, root) {
     return wrapper;
   }
 
-  return createBaseWrapper;
+  return createBind;
 });

_createCaseFirst.js

@@ -1,4 +1,4 @@
-define(['./_castSlice', './_reHasComplexSymbol', './_stringToArray', './toString'], function(castSlice, reHasComplexSymbol, stringToArray, toString) {
+define(['./_castSlice', './_hasUnicode', './_stringToArray', './toString'], function(castSlice, hasUnicode, stringToArray, toString) {
 
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
@@ -14,7 +14,7 @@ define(['./_castSlice', './_reHasComplexSymbol', './_stringToArray', './toString
     return function(string) {
       string = toString(string);
 
-      var strSymbols = reHasComplexSymbol.test(string)
+      var strSymbols = hasUnicode(string)
         ? stringToArray(string)
         : undefined;
 

_createCtor.js

@@ -8,10 +8,10 @@ define(['./_baseCreate', './isObject'], function(baseCreate, isObject) {
    * @param {Function} Ctor The constructor to wrap.
    * @returns {Function} Returns the new wrapped function.
    */
-  function createCtorWrapper(Ctor) {
+  function createCtor(Ctor) {
     return function() {
       // Use a `switch` statement to work with class constructors. See
-      // http://ecma-international.org/ecma-262/6.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
+      // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
       // for more details.
       var args = arguments;
       switch (args.length) {
@@ -33,5 +33,5 @@ define(['./_baseCreate', './isObject'], function(baseCreate, isObject) {
     };
   }
 
-  return createCtorWrapper;
+  return createCtor;
 });

_createCurry.js

@@ -1,4 +1,4 @@
-define(['./_apply', './_createCtorWrapper', './_createHybridWrapper', './_createRecurryWrapper', './_getHolder', './_replaceHolders', './_root'], function(apply, createCtorWrapper, createHybridWrapper, createRecurryWrapper, getHolder, replaceHolders, root) {
+define(['./_apply', './_createCtor', './_createHybrid', './_createRecurry', './_getHolder', './_replaceHolders', './_root'], function(apply, createCtor, createHybrid, createRecurry, getHolder, replaceHolders, root) {
 
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
@@ -8,13 +8,12 @@ define(['./_apply', './_createCtorWrapper', './_createHybridWrapper', './_create
    *
    * @private
    * @param {Function} func The function to wrap.
-   * @param {number} bitmask The bitmask of wrapper flags. See `createWrapper`
+   * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
-   *  for more details.
    * @param {number} arity The arity of `func`.
    * @returns {Function} Returns the new wrapped function.
    */
-  function createCurryWrapper(func, bitmask, arity) {
+  function createCurry(func, bitmask, arity) {
-    var Ctor = createCtorWrapper(func);
+    var Ctor = createCtor(func);
 
     function wrapper() {
       var length = arguments.length,
@@ -31,8 +30,8 @@ define(['./_apply', './_createCtorWrapper', './_createHybridWrapper', './_create
 
       length -= holders.length;
       if (length < arity) {
-        return createRecurryWrapper(
+        return createRecurry(
-          func, bitmask, createHybridWrapper, wrapper.placeholder, undefined,
+          func, bitmask, createHybrid, wrapper.placeholder, undefined,
           args, holders, undefined, undefined, arity - length);
       }
       var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
@@ -41,5 +40,5 @@ define(['./_apply', './_createCtorWrapper', './_createHybridWrapper', './_create
     return wrapper;
   }
 
-  return createCurryWrapper;
+  return createCurry;
 });

_createFind.js

@@ -0,0 +1,27 @@
+define(['./_baseIteratee', './isArrayLike', './keys'], function(baseIteratee, isArrayLike, keys) {
+
+  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
+  var undefined;
+
+  /**
+   * Creates a `_.find` or `_.findLast` function.
+   *
+   * @private
+   * @param {Function} findIndexFunc The function to find the collection index.
+   * @returns {Function} Returns the new find function.
+   */
+  function createFind(findIndexFunc) {
+    return function(collection, predicate, fromIndex) {
+      var iterable = Object(collection);
+      if (!isArrayLike(collection)) {
+        var iteratee = baseIteratee(predicate, 3);
+        collection = keys(collection);
+        predicate = function(key) { return iteratee(iterable[key], key, iterable); };
+      }
+      var index = findIndexFunc(collection, predicate, fromIndex);
+      return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined;
+    };
+  }
+
+  return createFind;
+});

_createFlow.js

@@ -1,4 +1,4 @@
-define(['./_LodashWrapper', './_baseFlatten', './_getData', './_getFuncName', './isArray', './_isLaziable', './rest'], function(LodashWrapper, baseFlatten, getData, getFuncName, isArray, isLaziable, rest) {
+define(['./_LodashWrapper', './_flatRest', './_getData', './_getFuncName', './isArray', './_isLaziable'], function(LodashWrapper, flatRest, getData, getFuncName, isArray, isLaziable) {
 
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
@@ -6,10 +6,10 @@ define(['./_LodashWrapper', './_baseFlatten', './_getData', './_getFuncName', '.
   /** Used as the size to enable large array optimizations. */
   var LARGE_ARRAY_SIZE = 200;
 
-  /** Used as the `TypeError` message for "Functions" methods. */
+  /** Error message constants. */
   var FUNC_ERROR_TEXT = 'Expected a function';
 
-  /** Used to compose bitmasks for wrapper metadata. */
+  /** Used to compose bitmasks for function metadata. */
   var CURRY_FLAG = 8,
       PARTIAL_FLAG = 32,
       ARY_FLAG = 128,
@@ -23,9 +23,7 @@ define(['./_LodashWrapper', './_baseFlatten', './_getData', './_getFuncName', '.
    * @returns {Function} Returns the new flow function.
    */
   function createFlow(fromRight) {
-    return rest(function(funcs) {
+    return flatRest(function(funcs) {
-      funcs = baseFlatten(funcs, 1);
-
       var length = funcs.length,
           index = length,
           prereq = LodashWrapper.prototype.thru;

_createHybrid.js

@@ -1,9 +1,9 @@
-define(['./_composeArgs', './_composeArgsRight', './_countHolders', './_createCtorWrapper', './_createRecurryWrapper', './_getHolder', './_reorder', './_replaceHolders', './_root'], function(composeArgs, composeArgsRight, countHolders, createCtorWrapper, createRecurryWrapper, getHolder, reorder, replaceHolders, root) {
+define(['./_composeArgs', './_composeArgsRight', './_countHolders', './_createCtor', './_createRecurry', './_getHolder', './_reorder', './_replaceHolders', './_root'], function(composeArgs, composeArgsRight, countHolders, createCtor, createRecurry, getHolder, reorder, replaceHolders, root) {
 
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
 
-  /** Used to compose bitmasks for wrapper metadata. */
+  /** Used to compose bitmasks for function metadata. */
   var BIND_FLAG = 1,
       BIND_KEY_FLAG = 2,
       CURRY_FLAG = 8,
@@ -17,8 +17,7 @@ define(['./_composeArgs', './_composeArgsRight', './_countHolders', './_createCt
    *
    * @private
    * @param {Function|string} func The function or method name to wrap.
-   * @param {number} bitmask The bitmask of wrapper flags. See `createWrapper`
+   * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
-   *  for more details.
    * @param {*} [thisArg] The `this` binding of `func`.
    * @param {Array} [partials] The arguments to prepend to those provided to
    *  the new function.
@@ -31,13 +30,13 @@ define(['./_composeArgs', './_composeArgsRight', './_countHolders', './_createCt
    * @param {number} [arity] The arity of `func`.
    * @returns {Function} Returns the new wrapped function.
    */
-  function createHybridWrapper(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {
+  function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {
     var isAry = bitmask & ARY_FLAG,
         isBind = bitmask & BIND_FLAG,
         isBindKey = bitmask & BIND_KEY_FLAG,
         isCurried = bitmask & (CURRY_FLAG | CURRY_RIGHT_FLAG),
         isFlip = bitmask & FLIP_FLAG,
-        Ctor = isBindKey ? undefined : createCtorWrapper(func);
+        Ctor = isBindKey ? undefined : createCtor(func);
 
     function wrapper() {
       var length = arguments.length,
@@ -60,8 +59,8 @@ define(['./_composeArgs', './_composeArgsRight', './_countHolders', './_createCt
       length -= holdersCount;
       if (isCurried && length < arity) {
         var newHolders = replaceHolders(args, placeholder);
-        return createRecurryWrapper(
+        return createRecurry(
-          func, bitmask, createHybridWrapper, wrapper.placeholder, thisArg,
+          func, bitmask, createHybrid, wrapper.placeholder, thisArg,
           args, newHolders, argPos, ary, arity - length
         );
       }
@@ -78,12 +77,12 @@ define(['./_composeArgs', './_composeArgsRight', './_countHolders', './_createCt
         args.length = ary;
       }
       if (this && this !== root && this instanceof wrapper) {
-        fn = Ctor || createCtorWrapper(fn);
+        fn = Ctor || createCtor(fn);
       }
       return fn.apply(thisBinding, args);
     }
     return wrapper;
   }
 
-  return createHybridWrapper;
+  return createHybrid;
 });

_createMathOperation.js

@@ -8,13 +8,14 @@ define(['./_baseToNumber', './_baseToString'], function(baseToNumber, baseToStri
    *
    * @private
    * @param {Function} operator The function to perform the operation.
+   * @param {number} [defaultValue] The value used for `undefined` arguments.
    * @returns {Function} Returns the new mathematical operation function.
    */
-  function createMathOperation(operator) {
+  function createMathOperation(operator, defaultValue) {
     return function(value, other) {
       var result;
       if (value === undefined && other === undefined) {
-        return 0;
+        return defaultValue;
       }
       if (value !== undefined) {
         result = value;

_createOver.js

@@ -1,4 +1,4 @@
-define(['./_apply', './_arrayMap', './_baseFlatten', './_baseIteratee', './_baseUnary', './isArray', './_isFlattenableIteratee', './rest'], function(apply, arrayMap, baseFlatten, baseIteratee, baseUnary, isArray, isFlattenableIteratee, rest) {
+define(['./_apply', './_arrayMap', './_baseIteratee', './_baseRest', './_baseUnary', './_flatRest'], function(apply, arrayMap, baseIteratee, baseRest, baseUnary, flatRest) {
 
   /**
    * Creates a function like `_.over`.
@@ -8,12 +8,9 @@ define(['./_apply', './_arrayMap', './_baseFlatten', './_baseIteratee', './_base
    * @returns {Function} Returns the new over function.
    */
   function createOver(arrayFunc) {
-    return rest(function(iteratees) {
+    return flatRest(function(iteratees) {
-      iteratees = (iteratees.length == 1 && isArray(iteratees[0]))
+      iteratees = arrayMap(iteratees, baseUnary(baseIteratee));
-        ? arrayMap(iteratees[0], baseUnary(baseIteratee))
+      return baseRest(function(args) {
-        : arrayMap(baseFlatten(iteratees, 1, isFlattenableIteratee), baseUnary(baseIteratee));
-
-      return rest(function(args) {
         var thisArg = this;
         return arrayFunc(iteratees, function(iteratee) {
           return apply(iteratee, thisArg, args);

_createPadding.js

@@ -1,4 +1,4 @@
-define(['./_baseRepeat', './_baseToString', './_castSlice', './_reHasComplexSymbol', './_stringSize', './_stringToArray'], function(baseRepeat, baseToString, castSlice, reHasComplexSymbol, stringSize, stringToArray) {
+define(['./_baseRepeat', './_baseToString', './_castSlice', './_hasUnicode', './_stringSize', './_stringToArray'], function(baseRepeat, baseToString, castSlice, hasUnicode, stringSize, stringToArray) {
 
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
@@ -23,7 +23,7 @@ define(['./_baseRepeat', './_baseToString', './_castSlice', './_reHasComplexSymb
       return charsLength ? baseRepeat(chars, length) : chars;
     }
     var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));
-    return reHasComplexSymbol.test(chars)
+    return hasUnicode(chars)
       ? castSlice(stringToArray(result), 0, length).join('')
       : result.slice(0, length);
   }

_createPartial.js

@@ -1,6 +1,6 @@
-define(['./_apply', './_createCtorWrapper', './_root'], function(apply, createCtorWrapper, root) {
+define(['./_apply', './_createCtor', './_root'], function(apply, createCtor, root) {
 
-  /** Used to compose bitmasks for wrapper metadata. */
+  /** Used to compose bitmasks for function metadata. */
   var BIND_FLAG = 1;
 
   /**
@@ -9,16 +9,15 @@ define(['./_apply', './_createCtorWrapper', './_root'], function(apply, createCt
    *
    * @private
    * @param {Function} func The function to wrap.
-   * @param {number} bitmask The bitmask of wrapper flags. See `createWrapper`
+   * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
-   *  for more details.
    * @param {*} thisArg The `this` binding of `func`.
    * @param {Array} partials The arguments to prepend to those provided to
    *  the new function.
    * @returns {Function} Returns the new wrapped function.
    */
-  function createPartialWrapper(func, bitmask, thisArg, partials) {
+  function createPartial(func, bitmask, thisArg, partials) {
     var isBind = bitmask & BIND_FLAG,
-        Ctor = createCtorWrapper(func);
+        Ctor = createCtor(func);
 
     function wrapper() {
       var argsIndex = -1,
@@ -39,5 +38,5 @@ define(['./_apply', './_createCtorWrapper', './_root'], function(apply, createCt
     return wrapper;
   }
 
-  return createPartialWrapper;
+  return createPartial;
 });

_createRange.js

@@ -1,4 +1,4 @@
-define(['./_baseRange', './_isIterateeCall', './toNumber'], function(baseRange, isIterateeCall, toNumber) {
+define(['./_baseRange', './_isIterateeCall', './toFinite'], function(baseRange, isIterateeCall, toFinite) {
 
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
@@ -16,15 +16,14 @@ define(['./_baseRange', './_isIterateeCall', './toNumber'], function(baseRange,
         end = step = undefined;
       }
       // Ensure the sign of `-0` is preserved.
-      start = toNumber(start);
+      start = toFinite(start);
-      start = start === start ? start : 0;
       if (end === undefined) {
         end = start;
         start = 0;
       } else {
-        end = toNumber(end) || 0;
+        end = toFinite(end);
       }
-      step = step === undefined ? (start < end ? 1 : -1) : (toNumber(step) || 0);
+      step = step === undefined ? (start < end ? 1 : -1) : toFinite(step);
       return baseRange(start, end, step, fromRight);
     };
   }

_createRecurry.js

@@ -1,9 +1,9 @@
-define(['./_isLaziable', './_setData'], function(isLaziable, setData) {
+define(['./_isLaziable', './_setData', './_setWrapToString'], function(isLaziable, setData, setWrapToString) {
 
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
 
-  /** Used to compose bitmasks for wrapper metadata. */
+  /** Used to compose bitmasks for function metadata. */
   var BIND_FLAG = 1,
       BIND_KEY_FLAG = 2,
       CURRY_BOUND_FLAG = 4,
@@ -16,8 +16,7 @@ define(['./_isLaziable', './_setData'], function(isLaziable, setData) {
    *
    * @private
    * @param {Function} func The function to wrap.
-   * @param {number} bitmask The bitmask of wrapper flags. See `createWrapper`
+   * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
-   *  for more details.
    * @param {Function} wrapFunc The function to create the `func` wrapper.
    * @param {*} placeholder The placeholder value.
    * @param {*} [thisArg] The `this` binding of `func`.
@@ -29,7 +28,7 @@ define(['./_isLaziable', './_setData'], function(isLaziable, setData) {
    * @param {number} [arity] The arity of `func`.
    * @returns {Function} Returns the new wrapped function.
    */
-  function createRecurryWrapper(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {
+  function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {
     var isCurry = bitmask & CURRY_FLAG,
         newHolders = isCurry ? holders : undefined,
         newHoldersRight = isCurry ? undefined : holders,
@@ -52,8 +51,8 @@ define(['./_isLaziable', './_setData'], function(isLaziable, setData) {
       setData(result, newData);
     }
     result.placeholder = placeholder;
-    return result;
+    return setWrapToString(result, func, bitmask);
   }
 
-  return createRecurryWrapper;
+  return createRecurry;
 });

_createSet.js

@@ -4,7 +4,7 @@ define(['./_Set', './noop', './_setToArray'], function(Set, noop, setToArray) {
   var INFINITY = 1 / 0;
 
   /**
-   * Creates a set of `values`.
+   * Creates a set object of `values`.
    *
    * @private
    * @param {Array} values The values to add to the set.

_createWrap.js

@@ -1,12 +1,12 @@
-define(['./_baseSetData', './_createBaseWrapper', './_createCurryWrapper', './_createHybridWrapper', './_createPartialWrapper', './_getData', './_mergeData', './_setData', './toInteger'], function(baseSetData, createBaseWrapper, createCurryWrapper, createHybridWrapper, createPartialWrapper, getData, mergeData, setData, toInteger) {
+define(['./_baseSetData', './_createBind', './_createCurry', './_createHybrid', './_createPartial', './_getData', './_mergeData', './_setData', './_setWrapToString', './toInteger'], function(baseSetData, createBind, createCurry, createHybrid, createPartial, getData, mergeData, setData, setWrapToString, toInteger) {
 
   /** 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';
 
-  /** Used to compose bitmasks for wrapper metadata. */
+  /** Used to compose bitmasks for function metadata. */
   var BIND_FLAG = 1,
       BIND_KEY_FLAG = 2,
       CURRY_FLAG = 8,
@@ -23,7 +23,7 @@ define(['./_baseSetData', './_createBaseWrapper', './_createCurryWrapper', './_c
    *
    * @private
    * @param {Function|string} func The function or method name to wrap.
-   * @param {number} bitmask The bitmask of wrapper flags.
+   * @param {number} bitmask The bitmask flags.
    *  The bitmask may be composed of the following flags:
    *     1 - `_.bind`
    *     2 - `_.bindKey`
@@ -43,7 +43,7 @@ define(['./_baseSetData', './_createBaseWrapper', './_createCurryWrapper', './_c
    * @param {number} [arity] The arity of `func`.
    * @returns {Function} Returns the new wrapped function.
    */
-  function createWrapper(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {
+  function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {
     var isBindKey = bitmask & BIND_KEY_FLAG;
     if (!isBindKey && typeof func != 'function') {
       throw new TypeError(FUNC_ERROR_TEXT);
@@ -86,17 +86,17 @@ define(['./_baseSetData', './_createBaseWrapper', './_createCurryWrapper', './_c
       bitmask &= ~(CURRY_FLAG | CURRY_RIGHT_FLAG);
     }
     if (!bitmask || bitmask == BIND_FLAG) {
-      var result = createBaseWrapper(func, bitmask, thisArg);
+      var result = createBind(func, bitmask, thisArg);
     } else if (bitmask == CURRY_FLAG || bitmask == CURRY_RIGHT_FLAG) {
-      result = createCurryWrapper(func, bitmask, arity);
+      result = createCurry(func, bitmask, arity);
     } else if ((bitmask == PARTIAL_FLAG || bitmask == (BIND_FLAG | PARTIAL_FLAG)) && !holders.length) {
-      result = createPartialWrapper(func, bitmask, thisArg, partials);
+      result = createPartial(func, bitmask, thisArg, partials);
     } else {
-      result = createHybridWrapper.apply(undefined, newData);
+      result = createHybrid.apply(undefined, newData);
     }
     var setter = data ? baseSetData : setData;
-    return setter(result, newData);
+    return setWrapToString(setter(result, newData), func, bitmask);
   }
 
-  return createWrapper;
+  return createWrap;
 });

_deburrLetter.js

@@ -1,15 +1,16 @@
-define([], function() {
+define(['./_basePropertyOf'], function(basePropertyOf) {
 
-  /** Used to map latin-1 supplementary letters to basic latin letters. */
+  /** Used to map Latin Unicode letters to basic Latin letters. */
   var deburredLetters = {
+    // Latin-1 Supplement block.
     '\xc0': 'A',  '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A',
     '\xe0': 'a',  '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a',
     '\xc7': 'C',  '\xe7': 'c',
     '\xd0': 'D',  '\xf0': 'd',
     '\xc8': 'E',  '\xc9': 'E', '\xca': 'E', '\xcb': 'E',
     '\xe8': 'e',  '\xe9': 'e', '\xea': 'e', '\xeb': 'e',
-    '\xcC': 'I',  '\xcd': 'I', '\xce': 'I', '\xcf': 'I',
+    '\xcc': 'I',  '\xcd': 'I', '\xce': 'I', '\xcf': 'I',
-    '\xeC': 'i',  '\xed': 'i', '\xee': 'i', '\xef': 'i',
+    '\xec': 'i',  '\xed': 'i', '\xee': 'i', '\xef': 'i',
     '\xd1': 'N',  '\xf1': 'n',
     '\xd2': 'O',  '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O',
     '\xf2': 'o',  '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o',
@@ -18,19 +19,54 @@ define([], function() {
     '\xdd': 'Y',  '\xfd': 'y', '\xff': 'y',
     '\xc6': 'Ae', '\xe6': 'ae',
     '\xde': 'Th', '\xfe': 'th',
-    '\xdf': 'ss'
+    '\xdf': 'ss',
+    // Latin Extended-A block.
+    '\u0100': 'A',  '\u0102': 'A', '\u0104': 'A',
+    '\u0101': 'a',  '\u0103': 'a', '\u0105': 'a',
+    '\u0106': 'C',  '\u0108': 'C', '\u010a': 'C', '\u010c': 'C',
+    '\u0107': 'c',  '\u0109': 'c', '\u010b': 'c', '\u010d': 'c',
+    '\u010e': 'D',  '\u0110': 'D', '\u010f': 'd', '\u0111': 'd',
+    '\u0112': 'E',  '\u0114': 'E', '\u0116': 'E', '\u0118': 'E', '\u011a': 'E',
+    '\u0113': 'e',  '\u0115': 'e', '\u0117': 'e', '\u0119': 'e', '\u011b': 'e',
+    '\u011c': 'G',  '\u011e': 'G', '\u0120': 'G', '\u0122': 'G',
+    '\u011d': 'g',  '\u011f': 'g', '\u0121': 'g', '\u0123': 'g',
+    '\u0124': 'H',  '\u0126': 'H', '\u0125': 'h', '\u0127': 'h',
+    '\u0128': 'I',  '\u012a': 'I', '\u012c': 'I', '\u012e': 'I', '\u0130': 'I',
+    '\u0129': 'i',  '\u012b': 'i', '\u012d': 'i', '\u012f': 'i', '\u0131': 'i',
+    '\u0134': 'J',  '\u0135': 'j',
+    '\u0136': 'K',  '\u0137': 'k', '\u0138': 'k',
+    '\u0139': 'L',  '\u013b': 'L', '\u013d': 'L', '\u013f': 'L', '\u0141': 'L',
+    '\u013a': 'l',  '\u013c': 'l', '\u013e': 'l', '\u0140': 'l', '\u0142': 'l',
+    '\u0143': 'N',  '\u0145': 'N', '\u0147': 'N', '\u014a': 'N',
+    '\u0144': 'n',  '\u0146': 'n', '\u0148': 'n', '\u014b': 'n',
+    '\u014c': 'O',  '\u014e': 'O', '\u0150': 'O',
+    '\u014d': 'o',  '\u014f': 'o', '\u0151': 'o',
+    '\u0154': 'R',  '\u0156': 'R', '\u0158': 'R',
+    '\u0155': 'r',  '\u0157': 'r', '\u0159': 'r',
+    '\u015a': 'S',  '\u015c': 'S', '\u015e': 'S', '\u0160': 'S',
+    '\u015b': 's',  '\u015d': 's', '\u015f': 's', '\u0161': 's',
+    '\u0162': 'T',  '\u0164': 'T', '\u0166': 'T',
+    '\u0163': 't',  '\u0165': 't', '\u0167': 't',
+    '\u0168': 'U',  '\u016a': 'U', '\u016c': 'U', '\u016e': 'U', '\u0170': 'U', '\u0172': 'U',
+    '\u0169': 'u',  '\u016b': 'u', '\u016d': 'u', '\u016f': 'u', '\u0171': 'u', '\u0173': 'u',
+    '\u0174': 'W',  '\u0175': 'w',
+    '\u0176': 'Y',  '\u0177': 'y', '\u0178': 'Y',
+    '\u0179': 'Z',  '\u017b': 'Z', '\u017d': 'Z',
+    '\u017a': 'z',  '\u017c': 'z', '\u017e': 'z',
+    '\u0132': 'IJ', '\u0133': 'ij',
+    '\u0152': 'Oe', '\u0153': 'oe',
+    '\u0149': "'n", '\u017f': 's'
   };
 
   /**
-   * Used by `_.deburr` to convert latin-1 supplementary letters to basic latin letters.
+   * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A
+   * letters to basic Latin letters.
    *
    * @private
    * @param {string} letter The matched letter to deburr.
    * @returns {string} Returns the deburred letter.
    */
-  function deburrLetter(letter) {
+  var deburrLetter = basePropertyOf(deburredLetters);
-    return deburredLetters[letter];
-  }
 
   return deburrLetter;
 });

_equalArrays.js

@@ -1,4 +1,4 @@
-define(['./_SetCache', './_arraySome'], function(SetCache, arraySome) {
+define(['./_SetCache', './_arraySome', './_cacheHas'], function(SetCache, arraySome, cacheHas) {
 
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
@@ -31,7 +31,7 @@ define(['./_SetCache', './_arraySome'], function(SetCache, arraySome) {
     }
     // Assume cyclic values are equal.
     var stacked = stack.get(array);
-    if (stacked) {
+    if (stacked && stack.get(other)) {
       return stacked == other;
     }
     var index = -1,
@@ -39,6 +39,7 @@ define(['./_SetCache', './_arraySome'], function(SetCache, arraySome) {
         seen = (bitmask & UNORDERED_COMPARE_FLAG) ? new SetCache : undefined;
 
     stack.set(array, other);
+    stack.set(other, array);
 
     // Ignore non-index properties.
     while (++index < arrLength) {
@@ -60,9 +61,9 @@ define(['./_SetCache', './_arraySome'], function(SetCache, arraySome) {
       // Recursively compare arrays (susceptible to call stack limits).
       if (seen) {
         if (!arraySome(other, function(othValue, othIndex) {
-              if (!seen.has(othIndex) &&
+              if (!cacheHas(seen, othIndex) &&
                   (arrValue === othValue || equalFunc(arrValue, othValue, customizer, bitmask, stack))) {
-                return seen.add(othIndex);
+                return seen.push(othIndex);
               }
             })) {
           result = false;
@@ -77,6 +78,7 @@ define(['./_SetCache', './_arraySome'], function(SetCache, arraySome) {
       }
     }
     stack['delete'](array);
+    stack['delete'](other);
     return result;
   }
 

_equalByTag.js

@@ -1,4 +1,4 @@
-define(['./_Symbol', './_Uint8Array', './_equalArrays', './_mapToArray', './_setToArray'], function(Symbol, Uint8Array, equalArrays, mapToArray, setToArray) {
+define(['./_Symbol', './_Uint8Array', './eq', './_equalArrays', './_mapToArray', './_setToArray'], function(Symbol, Uint8Array, eq, equalArrays, mapToArray, setToArray) {
 
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
@@ -62,22 +62,18 @@ define(['./_Symbol', './_Uint8Array', './_equalArrays', './_mapToArray', './_set
 
       case boolTag:
       case dateTag:
-        // Coerce dates and booleans to numbers, dates to milliseconds and
+      case numberTag:
-        // booleans to `1` or `0` treating invalid dates coerced to `NaN` as
+        // Coerce booleans to `1` or `0` and dates to milliseconds.
-        // not equal.
+        // Invalid dates are coerced to `NaN`.
-        return +object == +other;
+        return eq(+object, +other);
 
       case errorTag:
         return object.name == other.name && object.message == other.message;
 
-      case numberTag:
-        // Treat `NaN` vs. `NaN` as equal.
-        return (object != +object) ? other != +other : object == +other;
-
       case regexpTag:
       case stringTag:
         // Coerce regexes to strings and treat strings, primitives and objects,
-        // as equal. See http://www.ecma-international.org/ecma-262/6.0/#sec-regexp.prototype.tostring
+        // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring
         // for more details.
         return object == (other + '');
 
@@ -97,10 +93,12 @@ define(['./_Symbol', './_Uint8Array', './_equalArrays', './_mapToArray', './_set
           return stacked == other;
         }
         bitmask |= UNORDERED_COMPARE_FLAG;
-        stack.set(object, other);
 
         // Recursively compare objects (susceptible to call stack limits).
-        return equalArrays(convert(object), convert(other), equalFunc, customizer, bitmask, stack);
+        stack.set(object, other);
+        var result = equalArrays(convert(object), convert(other), equalFunc, customizer, bitmask, stack);
+        stack['delete'](object);
+        return result;
 
       case symbolTag:
         if (symbolValueOf) {

_equalObjects.js

@@ -1,4 +1,4 @@
-define(['./_baseHas', './keys'], function(baseHas, keys) {
+define(['./keys'], function(keys) {
 
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
@@ -6,6 +6,12 @@ define(['./_baseHas', './keys'], function(baseHas, keys) {
   /** Used to compose bitmasks for comparison styles. */
   var PARTIAL_COMPARE_FLAG = 2;
 
+  /** Used for built-in method references. */
+  var objectProto = Object.prototype;
+
+  /** Used to check objects for own properties. */
+  var hasOwnProperty = objectProto.hasOwnProperty;
+
   /**
    * A specialized version of `baseIsEqualDeep` for objects with support for
    * partial deep comparisons.
@@ -33,17 +39,18 @@ define(['./_baseHas', './keys'], function(baseHas, keys) {
     var index = objLength;
     while (index--) {
       var key = objProps[index];
-      if (!(isPartial ? key in other : baseHas(other, key))) {
+      if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {
         return false;
       }
     }
     // Assume cyclic values are equal.
     var stacked = stack.get(object);
-    if (stacked) {
+    if (stacked && stack.get(other)) {
       return stacked == other;
     }
     var result = true;
     stack.set(object, other);
+    stack.set(other, object);
 
     var skipCtor = isPartial;
     while (++index < objLength) {
@@ -79,6 +86,7 @@ define(['./_baseHas', './keys'], function(baseHas, keys) {
       }
     }
     stack['delete'](object);
+    stack['delete'](other);
     return result;
   }
 

_escapeHtmlChar.js

@@ -1,4 +1,4 @@
-define([], function() {
+define(['./_basePropertyOf'], function(basePropertyOf) {
 
   /** Used to map characters to HTML entities. */
   var htmlEscapes = {
@@ -6,8 +6,7 @@ define([], function() {
     '<': '&lt;',
     '>': '&gt;',
     '"': '&quot;',
-    "'": '&#39;',
+    "'": '&#39;'
-    '`': '&#96;'
   };
 
   /**
@@ -17,9 +16,7 @@ define([], function() {
    * @param {string} chr The matched character to escape.
    * @returns {string} Returns the escaped character.
    */
-  function escapeHtmlChar(chr) {
+  var escapeHtmlChar = basePropertyOf(htmlEscapes);
-    return htmlEscapes[chr];
-  }
 
   return escapeHtmlChar;
 });

_flatRest.js

@@ -0,0 +1,18 @@
+define(['./flatten', './_overRest', './_setToString'], function(flatten, overRest, setToString) {
+
+  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
+  var undefined;
+
+  /**
+   * A specialized version of `baseRest` which flattens the rest array.
+   *
+   * @private
+   * @param {Function} func The function to apply a rest parameter to.
+   * @returns {Function} Returns the new function.
+   */
+  function flatRest(func) {
+    return setToString(overRest(func, undefined, flatten), func + '');
+  }
+
+  return flatRest;
+});

_freeGlobal.js

@@ -0,0 +1,7 @@
+define([], function() {
+
+  /** Detect free variable `global` from Node.js. */
+  var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;
+
+  return freeGlobal;
+});

_getLength.js

@@ -1,17 +0,0 @@
-define(['./_baseProperty'], function(baseProperty) {
-
-  /**
-   * Gets the "length" property value of `object`.
-   *
-   * **Note:** This function is used to avoid a
-   * [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792) that affects
-   * Safari on at least iOS 8.1-8.3 ARM64.
-   *
-   * @private
-   * @param {Object} object The object to query.
-   * @returns {*} Returns the "length" value.
-   */
-  var getLength = baseProperty('length');
-
-  return getLength;
-});

_getPrototype.js

@@ -1,18 +1,7 @@
-define([], function() {
+define(['./_overArg'], function(overArg) {
 
-  /* Built-in method references for those with the same name as other `lodash` methods. */
+  /** Built-in value references. */
-  var nativeGetPrototype = Object.getPrototypeOf;
+  var getPrototype = overArg(Object.getPrototypeOf, Object);
-
-  /**
-   * Gets the `[[Prototype]]` of `value`.
-   *
-   * @private
-   * @param {*} value The value to query.
-   * @returns {null|Object} Returns the `[[Prototype]]`.
-   */
-  function getPrototype(value) {
-    return nativeGetPrototype(Object(value));
-  }
 
   return getPrototype;
 });

_getSymbols.js

@@ -1,7 +1,7 @@
-define(['./stubArray'], function(stubArray) {
+define(['./_overArg', './stubArray'], function(overArg, stubArray) {
 
-  /** Built-in value references. */
+  /* Built-in method references for those with the same name as other `lodash` methods. */
-  var getOwnPropertySymbols = Object.getOwnPropertySymbols;
+  var nativeGetSymbols = Object.getOwnPropertySymbols;
 
   /**
    * Creates an array of the own enumerable symbol properties of `object`.
@@ -10,16 +10,7 @@ define(['./stubArray'], function(stubArray) {
    * @param {Object} object The object to query.
    * @returns {Array} Returns the array of symbols.
    */
-  function getSymbols(object) {
+  var getSymbols = nativeGetSymbols ? overArg(nativeGetSymbols, Object) : stubArray;
-    // Coerce `object` to an object to avoid non-object errors in V8.
-    // See https://bugs.chromium.org/p/v8/issues/detail?id=3443 for more details.
-    return getOwnPropertySymbols(Object(object));
-  }
-
-  // Fallback for IE < 11.
-  if (!getOwnPropertySymbols) {
-    getSymbols = stubArray;
-  }
 
   return getSymbols;
 });

_getSymbolsIn.js

@@ -1,7 +1,7 @@
-define(['./_arrayPush', './_getPrototype', './_getSymbols'], function(arrayPush, getPrototype, getSymbols) {
+define(['./_arrayPush', './_getPrototype', './_getSymbols', './stubArray'], function(arrayPush, getPrototype, getSymbols, stubArray) {
 
-  /** Built-in value references. */
+  /* Built-in method references for those with the same name as other `lodash` methods. */
-  var getOwnPropertySymbols = Object.getOwnPropertySymbols;
+  var nativeGetSymbols = Object.getOwnPropertySymbols;
 
   /**
    * Creates an array of the own and inherited enumerable symbol properties
@@ -11,7 +11,7 @@ define(['./_arrayPush', './_getPrototype', './_getSymbols'], function(arrayPush,
    * @param {Object} object The object to query.
    * @returns {Array} Returns the array of symbols.
    */
-  var getSymbolsIn = !getOwnPropertySymbols ? getSymbols : function(object) {
+  var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) {
     var result = [];
     while (object) {
       arrayPush(result, getSymbols(object));

_getTag.js

@@ -1,4 +1,4 @@
-define(['./_DataView', './_Map', './_Promise', './_Set', './_WeakMap', './_toSource'], function(DataView, Map, Promise, Set, WeakMap, toSource) {
+define(['./_DataView', './_Map', './_Promise', './_Set', './_WeakMap', './_baseGetTag', './_toSource'], function(DataView, Map, Promise, Set, WeakMap, baseGetTag, toSource) {
 
   /** Used as a safe reference for `undefined` in pre-ES5 environments. */
   var undefined;
@@ -17,7 +17,7 @@ define(['./_DataView', './_Map', './_Promise', './_Set', './_WeakMap', './_toSou
 
   /**
    * Used to resolve the
-   * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+   * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
    * of values.
    */
   var objectToString = objectProto.toString;
@@ -36,12 +36,9 @@ define(['./_DataView', './_Map', './_Promise', './_Set', './_WeakMap', './_toSou
    * @param {*} value The value to query.
    * @returns {string} Returns the `toStringTag`.
    */
-  function getTag(value) {
+  var getTag = baseGetTag;
-    return objectToString.call(value);
-  }
 
-  // Fallback for data views, maps, sets, and weak maps in IE 11,
+  // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.
-  // for data views in Edge, and promises in Node.js.
   if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
       (Map && getTag(new Map) != mapTag) ||
       (Promise && getTag(Promise.resolve()) != promiseTag) ||

_getWrapDetails.js

@@ -0,0 +1,20 @@
+define([], function() {
+
+  /** Used to match wrap detail comments. */
+  var reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/,
+      reSplitDetails = /,? & /;
+
+  /**
+   * Extracts wrapper details from the `source` body comment.
+   *
+   * @private
+   * @param {string} source The source to inspect.
+   * @returns {Array} Returns the wrapper details.
+   */
+  function getWrapDetails(source) {
+    var match = source.match(reWrapDetails);
+    return match ? match[1].split(reSplitDetails) : [];
+  }
+
+  return getWrapDetails;
+});

_hasPath.js

@@ -1,4 +1,4 @@
-define(['./_castPath', './isArguments', './isArray', './_isIndex', './_isKey', './isLength', './isString', './_toKey'], function(castPath, isArguments, isArray, isIndex, isKey, isLength, isString, toKey) {
+define(['./_castPath', './isArguments', './isArray', './_isIndex', './_isKey', './isLength', './_toKey'], function(castPath, isArguments, isArray, isIndex, isKey, isLength, toKey) {
 
   /**
    * Checks if `path` exists on `object`.
@@ -12,9 +12,9 @@ define(['./_castPath', './isArguments', './isArray', './_isIndex', './_isKey', '
   function hasPath(object, path, hasFunc) {
     path = isKey(path, object) ? [path] : castPath(path);
 
-    var result,
+    var index = -1,
-        index = -1,
+        length = path.length,
-        length = path.length;
+        result = false;
 
     while (++index < length) {
       var key = toKey(path[index]);
@@ -23,12 +23,12 @@ define(['./_castPath', './isArguments', './isArray', './_isIndex', './_isKey', '
       }
       object = object[key];
     }
-    if (result) {
+    if (result || ++index != length) {
       return result;
     }
-    var length = object ? object.length : 0;
+    length = object ? object.length : 0;
     return !!length && isLength(length) && isIndex(key, length) &&
-      (isArray(object) || isString(object) || isArguments(object));
+      (isArray(object) || isArguments(object));
   }
 
   return hasPath;

_hasUnicode.js

@@ -10,7 +10,18 @@ define([], function() {
   var rsZWJ = '\\u200d';
 
   /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */
-  var reHasComplexSymbol = RegExp('[' + rsZWJ + rsAstralRange  + rsComboMarksRange + rsComboSymbolsRange + rsVarRange + ']');
+  var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange  + rsComboMarksRange + rsComboSymbolsRange + rsVarRange + ']');
 
-  return reHasComplexSymbol;
+  /**
+   * Checks if `string` contains Unicode symbols.
+   *
+   * @private
+   * @param {string} string The string to inspect.
+   * @returns {boolean} Returns `true` if a symbol is found, else `false`.
+   */
+  function hasUnicode(string) {
+    return reHasUnicode.test(string);
+  }
+
+  return hasUnicode;
 });