Bump to v4.16.6.

LICENSE

@@ -1,4 +1,4 @@
-Copyright jQuery Foundation and other contributors <https://jquery.org/>
+Copyright JS Foundation and other contributors <https://js.foundation/>
 
 Based on Underscore.js, copyright Jeremy Ashkenas,
 DocumentCloud and Investigative Reporters & Editors <http://underscorejs.org/>

README.md

@@ -1,4 +1,4 @@
-# lodash v4.16.2
+# lodash v4.16.6
 
 The [Lodash](https://lodash.com/) library exported as [Node.js](https://nodejs.org/) modules.
 
@@ -28,12 +28,12 @@ var at = require('lodash/at');
 var curryN = require('lodash/fp/curryN');
 ```
 
-See the [package source](https://github.com/lodash/lodash/tree/4.16.2-npm) for more details.
+See the [package source](https://github.com/lodash/lodash/tree/4.16.6-npm) for more details.
 
 **Note:**<br>
 Install [n_](https://www.npmjs.com/package/n_) for Lodash use in the Node.js < 6 REPL.
 
 ## Support
 
-Tested in Chrome 52-53, Firefox 47-48, IE 11, Edge 14, Safari 9-10, Node.js 4-6, & PhantomJS 2.1.1.<br>
+Tested in Chrome 53-54, Firefox 48-49, IE 11, Edge 14, Safari 9-10, Node.js 6-7, & PhantomJS 2.1.1.<br>
 Automated [browser](https://saucelabs.com/u/lodash) & [CI](https://travis-ci.org/lodash/lodash/) test runs are available.

_Hash.js

@@ -13,7 +13,7 @@ var hashClear = require('./_hashClear'),
  */
 function Hash(entries) {
   var index = -1,
-      length = entries ? entries.length : 0;
+      length = entries == null ? 0 : entries.length;
 
   this.clear();
   while (++index < length) {

_ListCache.js

@@ -13,7 +13,7 @@ var listCacheClear = require('./_listCacheClear'),
  */
 function ListCache(entries) {
   var index = -1,
-      length = entries ? entries.length : 0;
+      length = entries == null ? 0 : entries.length;
 
   this.clear();
   while (++index < length) {

_MapCache.js

@@ -13,7 +13,7 @@ var mapCacheClear = require('./_mapCacheClear'),
  */
 function MapCache(entries) {
   var index = -1,
-      length = entries ? entries.length : 0;
+      length = entries == null ? 0 : entries.length;
 
   this.clear();
   while (++index < length) {

_SetCache.js

@@ -12,7 +12,7 @@ var MapCache = require('./_MapCache'),
  */
 function SetCache(values) {
   var index = -1,
-      length = values ? values.length : 0;
+      length = values == null ? 0 : values.length;
 
   this.__data__ = new MapCache;
   while (++index < length) {

_arrayAggregator.js

@@ -10,7 +10,7 @@
  */
 function arrayAggregator(array, setter, iteratee, accumulator) {
   var index = -1,
-      length = array ? array.length : 0;
+      length = array == null ? 0 : array.length;
 
   while (++index < length) {
     var value = array[index];

_arrayEach.js

@@ -9,7 +9,7 @@
  */
 function arrayEach(array, iteratee) {
   var index = -1,
-      length = array ? array.length : 0;
+      length = array == null ? 0 : array.length;
 
   while (++index < length) {
     if (iteratee(array[index], index, array) === false) {

_arrayEachRight.js

@@ -8,7 +8,7 @@
  * @returns {Array} Returns `array`.
  */
 function arrayEachRight(array, iteratee) {
-  var length = array ? array.length : 0;
+  var length = array == null ? 0 : array.length;
 
   while (length--) {
     if (iteratee(array[length], length, array) === false) {

_arrayEvery.js

@@ -10,7 +10,7 @@
  */
 function arrayEvery(array, predicate) {
   var index = -1,
-      length = array ? array.length : 0;
+      length = array == null ? 0 : array.length;
 
   while (++index < length) {
     if (!predicate(array[index], index, array)) {

_arrayFilter.js

@@ -9,7 +9,7 @@
  */
 function arrayFilter(array, predicate) {
   var index = -1,
-      length = array ? array.length : 0,
+      length = array == null ? 0 : array.length,
       resIndex = 0,
       result = [];
 

_arrayIncludes.js

@@ -10,7 +10,7 @@ var baseIndexOf = require('./_baseIndexOf');
  * @returns {boolean} Returns `true` if `target` is found, else `false`.
  */
 function arrayIncludes(array, value) {
-  var length = array ? array.length : 0;
+  var length = array == null ? 0 : array.length;
   return !!length && baseIndexOf(array, value, 0) > -1;
 }
 

_arrayIncludesWith.js

@@ -9,7 +9,7 @@
  */
 function arrayIncludesWith(array, value, comparator) {
   var index = -1,
-      length = array ? array.length : 0;
+      length = array == null ? 0 : array.length;
 
   while (++index < length) {
     if (comparator(value, array[index])) {

_arrayLikeKeys.js

@@ -1,7 +1,9 @@
 var baseTimes = require('./_baseTimes'),
     isArguments = require('./isArguments'),
     isArray = require('./isArray'),
-    isIndex = require('./_isIndex');
+    isBuffer = require('./isBuffer'),
+    isIndex = require('./_isIndex'),
+    isTypedArray = require('./isTypedArray');
 
 /** Used for built-in method references. */
 var objectProto = Object.prototype;
@@ -18,18 +20,26 @@ var hasOwnProperty = objectProto.hasOwnProperty;
  * @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;
+  var isArr = isArray(value),
+      isArg = !isArr && isArguments(value),
+      isBuff = !isArr && !isArg && isBuffer(value),
+      isType = !isArr && !isArg && !isBuff && isTypedArray(value),
+      skipIndexes = isArr || isArg || isBuff || isType,
+      result = skipIndexes ? baseTimes(value.length, String) : [],
+      length = result.length;
 
   for (var key in value) {
     if ((inherited || hasOwnProperty.call(value, key)) &&
-        !(skipIndexes && (key == 'length' || isIndex(key, length)))) {
+        !(skipIndexes && (
+           // Safari 9 has enumerable `arguments.length` in strict mode.
+           key == 'length' ||
+           // Node.js 0.10 has enumerable non-index properties on buffers.
+           (isBuff && (key == 'offset' || key == 'parent')) ||
+           // PhantomJS 2 has enumerable non-index properties on typed arrays.
+           (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||
+           // Skip index properties.
+           isIndex(key, length)
+        ))) {
       result.push(key);
     }
   }

_arrayMap.js

@@ -9,7 +9,7 @@
  */
 function arrayMap(array, iteratee) {
   var index = -1,
-      length = array ? array.length : 0,
+      length = array == null ? 0 : array.length,
       result = Array(length);
 
   while (++index < length) {

_arrayReduce.js

@@ -12,7 +12,7 @@
  */
 function arrayReduce(array, iteratee, accumulator, initAccum) {
   var index = -1,
-      length = array ? array.length : 0;
+      length = array == null ? 0 : array.length;
 
   if (initAccum && length) {
     accumulator = array[++index];

_arrayReduceRight.js

@@ -11,7 +11,7 @@
  * @returns {*} Returns the accumulated value.
  */
 function arrayReduceRight(array, iteratee, accumulator, initAccum) {
-  var length = array ? array.length : 0;
+  var length = array == null ? 0 : array.length;
   if (initAccum && length) {
     accumulator = array[--length];
   }

_arraySampleSize.js

@@ -1,4 +1,5 @@
-var copyArray = require('./_copyArray'),
+var baseClamp = require('./_baseClamp'),
+    copyArray = require('./_copyArray'),
     shuffleSelf = require('./_shuffleSelf');
 
 /**
@@ -10,7 +11,7 @@ var copyArray = require('./_copyArray'),
  * @returns {Array} Returns the random elements.
  */
 function arraySampleSize(array, n) {
-  return shuffleSelf(copyArray(array), n);
+  return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length));
 }
 
 module.exports = arraySampleSize;

_arraySome.js

@@ -10,7 +10,7 @@
  */
 function arraySome(array, predicate) {
   var index = -1,
-      length = array ? array.length : 0;
+      length = array == null ? 0 : array.length;
 
   while (++index < length) {
     if (predicate(array[index], index, array)) {

_assignMergeValue.js

@@ -12,7 +12,7 @@ var baseAssignValue = require('./_baseAssignValue'),
  */
 function assignMergeValue(object, key, value) {
   if ((value !== undefined && !eq(object[key], value)) ||
-      (typeof key == 'number' && value === undefined && !(key in object))) {
+      (value === undefined && !(key in object))) {
     baseAssignValue(object, key, value);
   }
 }

_baseAssignValue.js

@@ -1,5 +1,4 @@
-/** Built-in value references. */
-var defineProperty = Object.defineProperty;
+var defineProperty = require('./_defineProperty');
 
 /**
  * The base implementation of `assignValue` and `assignMergeValue` without

_baseAt.js

@@ -10,12 +10,12 @@ var get = require('./get');
  */
 function baseAt(object, paths) {
   var index = -1,
-      isNil = object == null,
       length = paths.length,
-      result = Array(length);
+      result = Array(length),
+      skip = object == null;
 
   while (++index < length) {
-    result[index] = isNil ? undefined : get(object, paths[index]);
+    result[index] = skip ? undefined : get(object, paths[index]);
   }
   return result;
 }

_baseClone.js

@@ -118,9 +118,7 @@ function baseClone(value, isDeep, isFull, customizer, key, object, stack) {
   }
   stack.set(value, result);
 
-  if (!isArr) {
-    var props = isFull ? getAllKeys(value) : keys(value);
-  }
+  var props = isArr ? undefined : (isFull ? getAllKeys : keys)(value);
   arrayEach(props || value, function(subValue, key) {
     if (props) {
       key = subValue;

_baseCreate.js

@@ -20,7 +20,7 @@ var baseCreate = (function() {
     if (objectCreate) {
       return objectCreate(proto);
     }
-    object.prototype = prototype;
+    object.prototype = proto;
     var result = new object;
     object.prototype = undefined;
     return result;

_baseDifference.js

@@ -45,7 +45,7 @@ function baseDifference(array, values, iteratee, comparator) {
   outer:
   while (++index < length) {
     var value = array[index],
-        computed = iteratee ? iteratee(value) : value;
+        computed = iteratee == null ? value : iteratee(value);
 
     value = (comparator || value !== 0) ? value : 0;
     if (isCommon && computed === computed) {

_baseGetTag.js

@@ -1,22 +1,29 @@
-/** Used for built-in method references. */
-var objectProto = Object.prototype;
+var Symbol = require('./_Symbol'),
+    getRawTag = require('./_getRawTag'),
+    objectToString = require('./_objectToString');
+
+/** `Object#toString` result references. */
+var nullTag = '[object Null]',
+    undefinedTag = '[object Undefined]';
+
+/** Built-in value references. */
+var symToStringTag = Symbol ? Symbol.toStringTag : undefined;
 
 /**
- * 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`.
+ * The base implementation of `getTag` without fallbacks for buggy environments.
  *
  * @private
  * @param {*} value The value to query.
  * @returns {string} Returns the `toStringTag`.
  */
 function baseGetTag(value) {
-  return objectToString.call(value);
+  if (value == null) {
+    return value === undefined ? undefinedTag : nullTag;
+  }
+  value = Object(value);
+  return (symToStringTag && symToStringTag in value)
+    ? getRawTag(value)
+    : objectToString(value);
 }
 
 module.exports = baseGetTag;

_baseIsArguments.js

@@ -0,0 +1,18 @@
+var baseGetTag = require('./_baseGetTag'),
+    isObjectLike = require('./isObjectLike');
+
+/** `Object#toString` result references. */
+var argsTag = '[object Arguments]';
+
+/**
+ * The base implementation of `_.isArguments`.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an `arguments` object,
+ */
+function baseIsArguments(value) {
+  return isObjectLike(value) && baseGetTag(value) == argsTag;
+}
+
+module.exports = baseIsArguments;

_baseIsArrayBuffer.js

@@ -1,17 +1,8 @@
-var isObjectLike = require('./isObjectLike');
+var baseGetTag = require('./_baseGetTag'),
+    isObjectLike = require('./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.
  *
@@ -20,7 +11,7 @@ var objectToString = objectProto.toString;
  * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.
  */
 function baseIsArrayBuffer(value) {
-  return isObjectLike(value) && objectToString.call(value) == arrayBufferTag;
+  return isObjectLike(value) && baseGetTag(value) == arrayBufferTag;
 }
 
 module.exports = baseIsArrayBuffer;

_baseIsDate.js

@@ -1,18 +1,9 @@
-var isObjectLike = require('./isObjectLike');
+var baseGetTag = require('./_baseGetTag'),
+    isObjectLike = require('./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.
  *
@@ -21,7 +12,7 @@ var objectToString = objectProto.toString;
  * @returns {boolean} Returns `true` if `value` is a date object, else `false`.
  */
 function baseIsDate(value) {
-  return isObjectLike(value) && objectToString.call(value) == dateTag;
+  return isObjectLike(value) && baseGetTag(value) == dateTag;
 }
 
 module.exports = baseIsDate;

_baseIsEqualDeep.js

@@ -4,6 +4,7 @@ var Stack = require('./_Stack'),
     equalObjects = require('./_equalObjects'),
     getTag = require('./_getTag'),
     isArray = require('./isArray'),
+    isBuffer = require('./isBuffer'),
     isTypedArray = require('./isTypedArray');
 
 /** Used to compose bitmasks for comparison styles. */
@@ -53,6 +54,13 @@ function baseIsEqualDeep(object, other, equalFunc, customizer, bitmask, stack) {
       othIsObj = othTag == objectTag,
       isSameTag = objTag == othTag;
 
+  if (isSameTag && isBuffer(object)) {
+    if (!isBuffer(other)) {
+      return false;
+    }
+    objIsArr = true;
+    objIsObj = false;
+  }
   if (isSameTag && !objIsObj) {
     stack || (stack = new Stack);
     return (objIsArr || isTypedArray(object))

_baseIsRegExp.js

@@ -1,18 +1,9 @@
-var isObject = require('./isObject');
+var baseGetTag = require('./_baseGetTag'),
+    isObjectLike = require('./isObjectLike');
 
 /** `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.
  *
@@ -21,7 +12,7 @@ var objectToString = objectProto.toString;
  * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
  */
 function baseIsRegExp(value) {
-  return isObject(value) && objectToString.call(value) == regexpTag;
+  return isObjectLike(value) && baseGetTag(value) == regexpTag;
 }
 
 module.exports = baseIsRegExp;

_baseIsTypedArray.js

@@ -1,4 +1,5 @@
-var isLength = require('./isLength'),
+var baseGetTag = require('./_baseGetTag'),
+    isLength = require('./isLength'),
     isObjectLike = require('./isObjectLike');
 
 /** `Object#toString` result references. */
@@ -44,16 +45,6 @@ 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.
  *
@@ -63,7 +54,7 @@ var objectToString = objectProto.toString;
  */
 function baseIsTypedArray(value) {
   return isObjectLike(value) &&
-    isLength(value.length) && !!typedArrayTags[objectToString.call(value)];
+    isLength(value.length) && !!typedArrayTags[baseGetTag(value)];
 }
 
 module.exports = baseIsTypedArray;

_baseMean.js

@@ -13,7 +13,7 @@ var NAN = 0 / 0;
  * @returns {number} Returns the mean.
  */
 function baseMean(array, iteratee) {
-  var length = array ? array.length : 0;
+  var length = array == null ? 0 : array.length;
   return length ? (baseSum(array, iteratee) / length) : NAN;
 }
 

_baseMerge.js

@@ -1,11 +1,9 @@
 var Stack = require('./_Stack'),
-    arrayEach = require('./_arrayEach'),
     assignMergeValue = require('./_assignMergeValue'),
-    baseKeysIn = require('./_baseKeysIn'),
+    baseFor = require('./_baseFor'),
     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.
@@ -22,14 +20,7 @@ function baseMerge(object, source, srcIndex, customizer, stack) {
   if (object === source) {
     return;
   }
-  if (!(isArray(source) || isTypedArray(source))) {
-    var props = baseKeysIn(source);
-  }
-  arrayEach(props || source, function(srcValue, key) {
-    if (props) {
-      key = srcValue;
-      srcValue = source[key];
-    }
+  baseFor(source, function(srcValue, key) {
     if (isObject(srcValue)) {
       stack || (stack = new Stack);
       baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);
@@ -44,7 +35,7 @@ function baseMerge(object, source, srcIndex, customizer, stack) {
       }
       assignMergeValue(object, key, newValue);
     }
-  });
+  }, keysIn);
 }
 
 module.exports = baseMerge;

_baseMergeDeep.js

@@ -1,9 +1,12 @@
 var assignMergeValue = require('./_assignMergeValue'),
-    baseClone = require('./_baseClone'),
+    cloneBuffer = require('./_cloneBuffer'),
+    cloneTypedArray = require('./_cloneTypedArray'),
     copyArray = require('./_copyArray'),
+    initCloneObject = require('./_initCloneObject'),
     isArguments = require('./isArguments'),
     isArray = require('./isArray'),
     isArrayLikeObject = require('./isArrayLikeObject'),
+    isBuffer = require('./isBuffer'),
     isFunction = require('./isFunction'),
     isObject = require('./isObject'),
     isPlainObject = require('./isPlainObject'),
@@ -41,29 +44,37 @@ function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, sta
   var isCommon = newValue === undefined;
 
   if (isCommon) {
+    var isArr = isArray(srcValue),
+        isBuff = !isArr && isBuffer(srcValue),
+        isTyped = !isArr && !isBuff && isTypedArray(srcValue);
+
     newValue = srcValue;
-    if (isArray(srcValue) || isTypedArray(srcValue)) {
+    if (isArr || isBuff || isTyped) {
       if (isArray(objValue)) {
         newValue = objValue;
       }
       else if (isArrayLikeObject(objValue)) {
         newValue = copyArray(objValue);
       }
-      else {
+      else if (isBuff) {
         isCommon = false;
-        newValue = baseClone(srcValue, true);
+        newValue = cloneBuffer(srcValue, true);
+      }
+      else if (isTyped) {
+        isCommon = false;
+        newValue = cloneTypedArray(srcValue, true);
+      }
+      else {
+        newValue = [];
       }
     }
     else if (isPlainObject(srcValue) || isArguments(srcValue)) {
+      newValue = objValue;
       if (isArguments(objValue)) {
         newValue = toPlainObject(objValue);
       }
       else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) {
-        isCommon = false;
-        newValue = baseClone(srcValue, true);
-      }
-      else {
-        newValue = objValue;
+        newValue = initCloneObject(srcValue);
       }
     }
     else {

_baseSampleSize.js

@@ -1,4 +1,5 @@
-var shuffleSelf = require('./_shuffleSelf'),
+var baseClamp = require('./_baseClamp'),
+    shuffleSelf = require('./_shuffleSelf'),
     values = require('./values');
 
 /**
@@ -10,7 +11,8 @@ var shuffleSelf = require('./_shuffleSelf'),
  * @returns {Array} Returns the random elements.
  */
 function baseSampleSize(collection, n) {
-  return shuffleSelf(values(collection), n);
+  var array = values(collection);
+  return shuffleSelf(array, baseClamp(n, 0, array.length));
 }
 
 module.exports = baseSampleSize;

_baseSetToString.js

@@ -1,6 +1,6 @@
 var constant = require('./constant'),
-    identity = require('./identity'),
-    nativeDefineProperty = require('./_nativeDefineProperty');
+    defineProperty = require('./_defineProperty'),
+    identity = require('./identity');
 
 /**
  * The base implementation of `setToString` without support for hot loop shorting.
@@ -10,8 +10,8 @@ var constant = require('./constant'),
  * @param {Function} string The `toString` result.
  * @returns {Function} Returns `func`.
  */
-var baseSetToString = !nativeDefineProperty ? identity : function(func, string) {
-  return nativeDefineProperty(func, 'toString', {
+var baseSetToString = !defineProperty ? identity : function(func, string) {
+  return defineProperty(func, 'toString', {
     'configurable': true,
     'enumerable': false,
     'value': constant(string),

_baseSortedIndex.js

@@ -20,7 +20,7 @@ var MAX_ARRAY_LENGTH = 4294967295,
  */
 function baseSortedIndex(array, value, retHighest) {
   var low = 0,
-      high = array ? array.length : low;
+      high = array == null ? low : array.length;
 
   if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {
     while (low < high) {

_baseSortedIndexBy.js

@@ -25,7 +25,7 @@ function baseSortedIndexBy(array, value, iteratee, retHighest) {
   value = iteratee(value);
 
   var low = 0,
-      high = array ? array.length : 0,
+      high = array == null ? 0 : array.length,
       valIsNaN = value !== value,
       valIsNull = value === null,
       valIsSymbol = isSymbol(value),

_baseToString.js

@@ -1,4 +1,6 @@
 var Symbol = require('./_Symbol'),
+    arrayMap = require('./_arrayMap'),
+    isArray = require('./isArray'),
     isSymbol = require('./isSymbol');
 
 /** Used as references for various `Number` constants. */
@@ -21,6 +23,10 @@ function baseToString(value) {
   if (typeof value == 'string') {
     return value;
   }
+  if (isArray(value)) {
+    // Recursively convert values (susceptible to call stack limits).
+    return arrayMap(value, baseToString) + '';
+  }
   if (isSymbol(value)) {
     return symbolToString ? symbolToString.call(value) : '';
   }

_baseXor.js

@@ -1,5 +1,5 @@
-var arrayPush = require('./_arrayPush'),
-    baseDifference = require('./_baseDifference'),
+var baseDifference = require('./_baseDifference'),
+    baseFlatten = require('./_baseFlatten'),
     baseUniq = require('./_baseUniq');
 
 /**
@@ -13,18 +13,24 @@ var arrayPush = require('./_arrayPush'),
  * @returns {Array} Returns the new array of values.
  */
 function baseXor(arrays, iteratee, comparator) {
+  var length = arrays.length;
+  if (length < 2) {
+    return length ? baseUniq(arrays[0]) : [];
+  }
   var index = -1,
-      length = arrays.length;
+      result = Array(length);
 
   while (++index < length) {
-    var result = result
-      ? arrayPush(
-          baseDifference(result, arrays[index], iteratee, comparator),
-          baseDifference(arrays[index], result, iteratee, comparator)
-        )
-      : arrays[index];
+    var array = arrays[index],
+        othIndex = -1;
+
+    while (++othIndex < length) {
+      if (othIndex != index) {
+        result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator);
+      }
+    }
   }
-  return (result && result.length) ? baseUniq(result, iteratee, comparator) : [];
+  return baseUniq(baseFlatten(result, 1), iteratee, comparator);
 }
 
 module.exports = baseXor;

_defineProperty.js

@@ -0,0 +1,11 @@
+var getNative = require('./_getNative');
+
+var defineProperty = (function() {
+  try {
+    var func = getNative(Object, 'defineProperty');
+    func({}, '', {});
+    return func;
+  } catch (e) {}
+}());
+
+module.exports = defineProperty;

_getRawTag.js

@@ -0,0 +1,46 @@
+var Symbol = require('./_Symbol');
+
+/** Used for built-in method references. */
+var objectProto = Object.prototype;
+
+/** Used to check objects for own properties. */
+var hasOwnProperty = objectProto.hasOwnProperty;
+
+/**
+ * Used to resolve the
+ * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
+ * of values.
+ */
+var nativeObjectToString = objectProto.toString;
+
+/** Built-in value references. */
+var symToStringTag = Symbol ? Symbol.toStringTag : undefined;
+
+/**
+ * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.
+ *
+ * @private
+ * @param {*} value The value to query.
+ * @returns {string} Returns the raw `toStringTag`.
+ */
+function getRawTag(value) {
+  var isOwn = hasOwnProperty.call(value, symToStringTag),
+      tag = value[symToStringTag];
+
+  try {
+    value[symToStringTag] = undefined;
+    var unmasked = true;
+  } catch (e) {}
+
+  var result = nativeObjectToString.call(value);
+  if (unmasked) {
+    if (isOwn) {
+      value[symToStringTag] = tag;
+    } else {
+      delete value[symToStringTag];
+    }
+  }
+  return result;
+}
+
+module.exports = getRawTag;

_getTag.js

@@ -15,16 +15,6 @@ var mapTag = '[object Map]',
 
 var dataViewTag = '[object DataView]';
 
-/** 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;
-
 /** Used to detect maps, sets, and weakmaps. */
 var dataViewCtorString = toSource(DataView),
     mapCtorString = toSource(Map),
@@ -48,9 +38,9 @@ if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
     (Set && getTag(new Set) != setTag) ||
     (WeakMap && getTag(new WeakMap) != weakMapTag)) {
   getTag = function(value) {
-    var result = objectToString.call(value),
+    var result = baseGetTag(value),
         Ctor = result == objectTag ? value.constructor : undefined,
-        ctorString = Ctor ? toSource(Ctor) : undefined;
+        ctorString = Ctor ? toSource(Ctor) : '';
 
     if (ctorString) {
       switch (ctorString) {

_hasPath.js

@@ -32,7 +32,7 @@ function hasPath(object, path, hasFunc) {
   if (result || ++index != length) {
     return result;
   }
-  length = object ? object.length : 0;
+  length = object == null ? 0 : object.length;
   return !!length && isLength(length) && isIndex(key, length) &&
     (isArray(object) || isArguments(object));
 }

_nativeDefineProperty.js

@@ -1,6 +0,0 @@
-var getNative = require('./_getNative');
-
-/* Built-in method references that are verified to be native. */
-var nativeDefineProperty = getNative(Object, 'defineProperty');
-
-module.exports = nativeDefineProperty;

_objectToString.js

@@ -0,0 +1,22 @@
+/** 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 nativeObjectToString = objectProto.toString;
+
+/**
+ * Converts `value` to a string using `Object.prototype.toString`.
+ *
+ * @private
+ * @param {*} value The value to convert.
+ * @returns {string} Returns the converted string.
+ */
+function objectToString(value) {
+  return nativeObjectToString.call(value);
+}
+
+module.exports = objectToString;

_shortOut.js

@@ -1,5 +1,5 @@
 /** Used to detect hot functions by number of calls within a span of milliseconds. */
-var HOT_COUNT = 500,
+var HOT_COUNT = 800,
     HOT_SPAN = 16;
 
 /* Built-in method references for those with the same name as other `lodash` methods. */

_shuffleSelf.js

@@ -1,5 +1,4 @@
-var baseClamp = require('./_baseClamp'),
-    baseRandom = require('./_baseRandom');
+var baseRandom = require('./_baseRandom');
 
 /**
  * A specialized version of `_.shuffle` which mutates and sets the size of `array`.
@@ -14,7 +13,7 @@ function shuffleSelf(array, size) {
       length = array.length,
       lastIndex = length - 1;
 
-  size = size === undefined ? length : baseClamp(size, 0, length);
+  size = size === undefined ? length : size;
   while (++index < size) {
     var rand = baseRandom(index, lastIndex),
         value = array[rand];

_toSource.js

@@ -8,7 +8,7 @@ var funcToString = funcProto.toString;
  * Converts `func` to its source code.
  *
  * @private
- * @param {Function} func The function to process.
+ * @param {Function} func The function to convert.
  * @returns {string} Returns the source code.
  */
 function toSource(func) {

_unicodeWords.js

@@ -29,22 +29,26 @@ var rsApos = "['\u2019]",
     rsZWJ = '\\u200d';
 
 /** Used to compose unicode regexes. */
-var rsLowerMisc = '(?:' + rsLower + '|' + rsMisc + ')',
-    rsUpperMisc = '(?:' + rsUpper + '|' + rsMisc + ')',
-    rsOptLowerContr = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',
-    rsOptUpperContr = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',
+var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')',
+    rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')',
+    rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',
+    rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',
     reOptMod = rsModifier + '?',
     rsOptVar = '[' + rsVarRange + ']?',
     rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',
+    rsOrdLower = '\\d*(?:(?:1st|2nd|3rd|(?![123])\\dth)\\b)',
+    rsOrdUpper = '\\d*(?:(?:1ST|2ND|3RD|(?![123])\\dTH)\\b)',
     rsSeq = rsOptVar + reOptMod + rsOptJoin,
     rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq;
 
 /** Used to match complex or compound words. */
 var reUnicodeWord = RegExp([
-  rsUpper + '?' + rsLower + '+' + rsOptLowerContr + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',
-  rsUpperMisc + '+' + rsOptUpperContr + '(?=' + [rsBreak, rsUpper + rsLowerMisc, '$'].join('|') + ')',
-  rsUpper + '?' + rsLowerMisc + '+' + rsOptLowerContr,
-  rsUpper + '+' + rsOptUpperContr,
+  rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',
+  rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')',
+  rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower,
+  rsUpper + '+' + rsOptContrUpper,
+  rsOrdUpper,
+  rsOrdLower,
   rsDigits,
   rsEmoji
 ].join('|'), 'g');

chunk.js

@@ -33,7 +33,7 @@ function chunk(array, size, guard) {
   } else {
     size = nativeMax(toInteger(size), 0);
   }
-  var length = array ? array.length : 0;
+  var length = array == null ? 0 : array.length;
   if (!length || size < 1) {
     return [];
   }

cloneDeepWith.js

@@ -29,6 +29,7 @@ var baseClone = require('./_baseClone');
  * // => 20
  */
 function cloneDeepWith(value, customizer) {
+  customizer = typeof customizer == 'function' ? customizer : undefined;
   return baseClone(value, true, true, customizer);
 }
 

cloneWith.js

@@ -32,6 +32,7 @@ var baseClone = require('./_baseClone');
  * // => 0
  */
 function cloneWith(value, customizer) {
+  customizer = typeof customizer == 'function' ? customizer : undefined;
   return baseClone(value, false, true, customizer);
 }
 

compact.js

@@ -15,7 +15,7 @@
  */
 function compact(array) {
   var index = -1,
-      length = array ? array.length : 0,
+      length = array == null ? 0 : array.length,
       resIndex = 0,
       result = [];
 

cond.js

@@ -36,7 +36,7 @@ var FUNC_ERROR_TEXT = 'Expected a function';
  * // => 'no match'
  */
 function cond(pairs) {
-  var length = pairs ? pairs.length : 0,
+  var length = pairs == null ? 0 : pairs.length,
       toIteratee = baseIteratee;
 
   pairs = !length ? [] : arrayMap(pairs, function(pair) {

core.js

@@ -2,7 +2,7 @@
  * @license
  * lodash (Custom Build) <https://lodash.com/>
  * Build: `lodash core -o ./dist/lodash.core.js`
- * Copyright jQuery Foundation and other contributors <https://jquery.org/>
+ * Copyright JS Foundation and other contributors <https://js.foundation/>
  * Released under MIT license <https://lodash.com/license>
  * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
  * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
@@ -13,7 +13,7 @@
   var undefined;
 
   /** Used as the semantic version number. */
-  var VERSION = '4.16.2';
+  var VERSION = '4.16.6';
 
   /** Error message constants. */
   var FUNC_ERROR_TEXT = 'Expected a function';
@@ -33,6 +33,7 @@
   /** `Object#toString` result references. */
   var argsTag = '[object Arguments]',
       arrayTag = '[object Array]',
+      asyncTag = '[object AsyncFunction]',
       boolTag = '[object Boolean]',
       dateTag = '[object Date]',
       errorTag = '[object Error]',
@@ -40,6 +41,7 @@
       genTag = '[object GeneratorFunction]',
       numberTag = '[object Number]',
       objectTag = '[object Object]',
+      proxyTag = '[object Proxy]',
       regexpTag = '[object RegExp]',
       stringTag = '[object String]';
 
@@ -213,7 +215,7 @@
    * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
    * of values.
    */
-  var objectToString = objectProto.toString;
+  var nativeObjectToString = objectProto.toString;
 
   /** Used to restore the original `_` reference in `_.noConflict`. */
   var oldDash = root._;
@@ -369,7 +371,7 @@
       if (objectCreate) {
         return objectCreate(proto);
       }
-      object.prototype = prototype;
+      object.prototype = proto;
       var result = new object;
       object.prototype = undefined;
       return result;
@@ -609,6 +611,17 @@
     });
   }
 
+  /**
+   * The base implementation of `getTag` without fallbacks for buggy environments.
+   *
+   * @private
+   * @param {*} value The value to query.
+   * @returns {string} Returns the `toStringTag`.
+   */
+  function baseGetTag(value) {
+    return objectToString(value);
+  }
+
   /**
    * The base implementation of `_.gt` which doesn't coerce arguments.
    *
@@ -622,6 +635,15 @@
     return value > other;
   }
 
+  /**
+   * The base implementation of `_.isArguments`.
+   *
+   * @private
+   * @param {*} value The value to check.
+   * @returns {boolean} Returns `true` if `value` is an `arguments` object,
+   */
+  var baseIsArguments = noop;
+
   /**
    * The base implementation of `_.isDate` without Node.js optimizations.
    *
@@ -630,7 +652,7 @@
    * @returns {boolean} Returns `true` if `value` is a date object, else `false`.
    */
   function baseIsDate(value) {
-    return isObjectLike(value) && objectToString.call(value) == dateTag;
+    return isObjectLike(value) && baseGetTag(value) == dateTag;
   }
 
   /**
@@ -680,11 +702,11 @@
         othTag = arrayTag;
 
     if (!objIsArr) {
-      objTag = objectToString.call(object);
+      objTag = baseGetTag(object);
       objTag = objTag == argsTag ? objectTag : objTag;
     }
     if (!othIsArr) {
-      othTag = objectToString.call(other);
+      othTag = baseGetTag(other);
       othTag = othTag == argsTag ? objectTag : othTag;
     }
     var objIsObj = objTag == objectTag,
@@ -739,7 +761,7 @@
    * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
    */
   function baseIsRegExp(value) {
-    return isObject(value) && objectToString.call(value) == regexpTag;
+    return isObjectLike(value) && baseGetTag(value) == regexpTag;
   }
 
   /**
@@ -1371,6 +1393,17 @@
     return result;
   }
 
+  /**
+   * Converts `value` to a string using `Object.prototype.toString`.
+   *
+   * @private
+   * @param {*} value The value to convert.
+   * @returns {string} Returns the converted string.
+   */
+  function objectToString(value) {
+    return nativeObjectToString.call(value);
+  }
+
   /**
    * A specialized version of `baseRest` which transforms the rest array.
    *
@@ -1487,8 +1520,7 @@
    * @since 1.1.0
    * @category Array
    * @param {Array} array The array to inspect.
-   * @param {Function} [predicate=_.identity]
-   *  The function invoked per iteration.
+   * @param {Function} [predicate=_.identity] The function invoked per iteration.
    * @param {number} [fromIndex=0] The index to search from.
    * @returns {number} Returns the index of the found element, else `-1`.
    * @example
@@ -1515,7 +1547,7 @@
    * // => 2
    */
   function findIndex(array, predicate, fromIndex) {
-    var length = array ? array.length : 0;
+    var length = array == null ? 0 : array.length;
     if (!length) {
       return -1;
     }
@@ -1541,7 +1573,7 @@
    * // => [1, 2, [3, [4]], 5]
    */
   function flatten(array) {
-    var length = array ? array.length : 0;
+    var length = array == null ? 0 : array.length;
     return length ? baseFlatten(array, 1) : [];
   }
 
@@ -1560,7 +1592,7 @@
    * // => [1, 2, 3, 4, 5]
    */
   function flattenDeep(array) {
-    var length = array ? array.length : 0;
+    var length = array == null ? 0 : array.length;
     return length ? baseFlatten(array, INFINITY) : [];
   }
 
@@ -1610,7 +1642,7 @@
    * // => 3
    */
   function indexOf(array, value, fromIndex) {
-    var length = array ? array.length : 0;
+    var length = array == null ? 0 : array.length;
     if (typeof fromIndex == 'number') {
       fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : fromIndex;
     } else {
@@ -1643,7 +1675,7 @@
    * // => 3
    */
   function last(array) {
-    var length = array ? array.length : 0;
+    var length = array == null ? 0 : array.length;
     return length ? array[length - 1] : undefined;
   }
 
@@ -1664,7 +1696,7 @@
    * @returns {Array} Returns the slice of `array`.
    */
   function slice(array, start, end) {
-    var length = array ? array.length : 0;
+    var length = array == null ? 0 : array.length;
     start = start == null ? 0 : +start;
     end = end === undefined ? length : +end;
     return length ? baseSlice(array, start, end) : [];
@@ -1828,8 +1860,7 @@
    * @since 0.1.0
    * @category Collection
    * @param {Array|Object} collection The collection to iterate over.
-   * @param {Function} [predicate=_.identity]
-   *  The function invoked per iteration.
+   * @param {Function} [predicate=_.identity] The function invoked per iteration.
    * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
    * @returns {boolean} Returns `true` if all elements pass the predicate check,
    *  else `false`.
@@ -1872,8 +1903,7 @@
    * @since 0.1.0
    * @category Collection
    * @param {Array|Object} collection The collection to iterate over.
-   * @param {Function} [predicate=_.identity]
-   *  The function invoked per iteration.
+   * @param {Function} [predicate=_.identity] The function invoked per iteration.
    * @returns {Array} Returns the new filtered array.
    * @see _.reject
    * @example
@@ -1912,8 +1942,7 @@
    * @since 0.1.0
    * @category Collection
    * @param {Array|Object} collection The collection to inspect.
-   * @param {Function} [predicate=_.identity]
-   *  The function invoked per iteration.
+   * @param {Function} [predicate=_.identity] The function invoked per iteration.
    * @param {number} [fromIndex=0] The index to search from.
    * @returns {*} Returns the matched element, else `undefined`.
    * @example
@@ -2433,11 +2462,10 @@
    * _.isArguments([1, 2, 3]);
    * // => false
    */
-  function isArguments(value) {
-    // Safari 8.1 makes `arguments.callee` enumerable in strict mode.
-    return isArrayLikeObject(value) && hasOwnProperty.call(value, 'callee') &&
-      (!propertyIsEnumerable.call(value, 'callee') || objectToString.call(value) == argsTag);
-  }
+  var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {
+    return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&
+      !propertyIsEnumerable.call(value, 'callee');
+  };
 
   /**
    * Checks if `value` is classified as an `Array` object.
@@ -2493,35 +2521,6 @@
     return value != null && isLength(value.length) && !isFunction(value);
   }
 
-  /**
-   * This method is like `_.isArrayLike` except that it also checks if `value`
-   * is an object.
-   *
-   * @static
-   * @memberOf _
-   * @since 4.0.0
-   * @category Lang
-   * @param {*} value The value to check.
-   * @returns {boolean} Returns `true` if `value` is an array-like object,
-   *  else `false`.
-   * @example
-   *
-   * _.isArrayLikeObject([1, 2, 3]);
-   * // => true
-   *
-   * _.isArrayLikeObject(document.body.children);
-   * // => true
-   *
-   * _.isArrayLikeObject('abc');
-   * // => false
-   *
-   * _.isArrayLikeObject(_.noop);
-   * // => false
-   */
-  function isArrayLikeObject(value) {
-    return isObjectLike(value) && isArrayLike(value);
-  }
-
   /**
    * Checks if `value` is classified as a boolean primitive or object.
    *
@@ -2541,7 +2540,7 @@
    */
   function isBoolean(value) {
     return value === true || value === false ||
-      (isObjectLike(value) && objectToString.call(value) == boolTag);
+      (isObjectLike(value) && baseGetTag(value) == boolTag);
   }
 
   /**
@@ -2685,10 +2684,13 @@
    * // => false
    */
   function isFunction(value) {
+    if (!isObject(value)) {
+      return false;
+    }
     // The use of `Object#toString` avoids issues with the `typeof` operator
-    // in Safari 8-9 which returns 'object' for typed array and other constructors.
-    var tag = isObject(value) ? objectToString.call(value) : '';
-    return tag == funcTag || tag == genTag;
+    // in Safari 9 which returns 'object' for typed arrays and other constructors.
+    var tag = baseGetTag(value);
+    return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;
   }
 
   /**
@@ -2864,7 +2866,7 @@
    */
   function isNumber(value) {
     return typeof value == 'number' ||
-      (isObjectLike(value) && objectToString.call(value) == numberTag);
+      (isObjectLike(value) && baseGetTag(value) == numberTag);
   }
 
   /**
@@ -2905,7 +2907,7 @@
    */
   function isString(value) {
     return typeof value == 'string' ||
-      (!isArray(value) && isObjectLike(value) && objectToString.call(value) == stringTag);
+      (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);
   }
 
   /**
@@ -3020,8 +3022,8 @@
    * @memberOf _
    * @since 4.0.0
    * @category Lang
-   * @param {*} value The value to process.
-   * @returns {string} Returns the string.
+   * @param {*} value The value to convert.
+   * @returns {string} Returns the converted string.
    * @example
    *
    * _.toString(null);
@@ -3182,7 +3184,7 @@
    */
   function create(prototype, properties) {
     var result = baseCreate(prototype);
-    return properties ? assign(result, properties) : result;
+    return properties == null ? result : assign(result, properties);
   }
 
   /**
@@ -3382,7 +3384,7 @@
    * // => ['h', 'i']
    */
   function values(object) {
-    return object ? baseValues(object, keys(object)) : [];
+    return object == null ? [] : baseValues(object, keys(object));
   }
 
   /*------------------------------------------------------------------------*/

core.min.js

@@ -1,29 +1,29 @@
 /**
  * @license
- * lodash (Custom Build) /license | Underscore.js 1.8.3 underscorejs.org/LICENSE
+ * lodash (Custom Build) lodash.com/license | Underscore.js 1.8.3 underscorejs.org/LICENSE
  * Build: `lodash core -o ./dist/lodash.core.js`
  */
-;(function(){function n(n,t){return n.push.apply(n,t),n}function t(n){return function(t){return null==t?nn:t[n]}}function r(n,t,r,e,u){return u(n,function(n,u,o){r=e?(e=false,n):t(r,n,u,o)}),r}function e(n,t){return j(t,function(t){return n[t]})}function u(n){return n instanceof o?n:new o(n)}function o(n,t){this.__wrapped__=n,this.__actions__=[],this.__chain__=!!t}function i(n,t,r,e){return n===nn||M(n,ln[r])&&!pn.call(e,r)?t:n}function c(n,t,r){if(typeof n!="function")throw new TypeError("Expected a function");
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+if(f!=a&&!i)return false;for(var l=f;l--;){var p=c[l];if(!(i?p in t:pn.call(t,p)))return false}for(a=true;++l<f;){var p=c[l],s=n[p],h=t[p];if(void 0!==nn||s!==h&&!r(s,h,e,u,o)){a=false;break}i||(i="constructor"==p)}return a&&!i&&(r=n.constructor,e=t.constructor,r!=e&&"constructor"in n&&"constructor"in t&&!(typeof r=="function"&&r instanceof r&&typeof e=="function"&&e instanceof e)&&(a=false)),a}function D(t){return Sn(t)||n(t)}function I(n){var t=[];if(null!=n)for(var r in Object(n))t.push(r);return t}function q(n,t,r){
+return t=jn(t===nn?n.length-1:t,0),function(){for(var e=arguments,u=-1,o=jn(e.length-t,0),i=Array(o);++u<o;)i[u]=e[t+u];for(u=-1,o=Array(t+1);++u<t;)o[u]=e[u];return o[t]=r(i),n.apply(this,o)}}function $(n){return(null==n?0:n.length)?s(n,1):[]}function P(n){return n&&n.length?n[0]:nn}function z(n,t,r){var e=null==n?0:n.length;r=typeof r=="number"?0>r?jn(e+r,0):r:0,r=(r||0)-1;for(var u=t===t;++r<e;){var o=n[r];if(u?o===t:o!==o)return r}return-1}function C(n,t){return mn(n,_(t))}function G(n,t,r){return e(n,_(t),r,3>arguments.length,mn);
+}function J(n,t){var r;if(typeof t!="function")throw new TypeError("Expected a function");return n=Fn(n),function(){return 0<--n&&(r=t.apply(this,arguments)),1>=n&&(t=nn),r}}function M(n,t){return n===t||n!==n&&t!==t}function U(n){var t;return(t=null!=n)&&(t=n.length,t=typeof t=="number"&&-1<t&&0==t%1&&9007199254740991>=t),t&&!V(n)}function V(n){return!!H(n)&&(n=hn.call(n),"[object Function]"==n||"[object GeneratorFunction]"==n||"[object AsyncFunction]"==n||"[object Proxy]"==n)}function H(n){var t=typeof n;
+return null!=n&&("object"==t||"function"==t)}function K(n){return null!=n&&typeof n=="object"}function L(n){return typeof n=="number"||K(n)&&"[object Number]"==hn.call(n)}function Q(n){return typeof n=="string"||!Sn(n)&&K(n)&&"[object String]"==hn.call(n)}function W(n){return typeof n=="string"?n:null==n?"":n+""}function X(n){return null==n?[]:u(n,qn(n))}function Y(n){return n}function Z(n,r,e){var u=qn(r),o=v(r,u);null!=e||H(r)&&(o.length||!u.length)||(e=r,r=n,n=this,o=v(r,qn(r)));var i=!(H(e)&&"chain"in e&&!e.chain),c=V(n);
+return mn(o,function(e){var u=r[e];n[e]=u,c&&(n.prototype[e]=function(){var r=this.__chain__;if(i||r){var e=n(this.__wrapped__);return(e.__actions__=E(this.__actions__)).push({func:u,args:arguments,thisArg:n}),e.__chain__=r,e}return u.apply(n,t([this.value()],arguments))})}),n}var nn,tn=1/0,rn=/[&<>"']/g,en=RegExp(rn.source),un=typeof self=="object"&&self&&self.Object===Object&&self,on=typeof global=="object"&&global&&global.Object===Object&&global||un||Function("return this")(),cn=(un=typeof exports=="object"&&exports&&!exports.nodeType&&exports)&&typeof module=="object"&&module&&!module.nodeType&&module,fn=function(n){
+return function(t){return null==n?nn:n[t]}}({"&":"&amp;","<":"&lt;",">":"&gt;",'"':"&quot;","'":"&#39;"}),an=Array.prototype,ln=Object.prototype,pn=ln.hasOwnProperty,sn=0,hn=ln.toString,vn=on._,yn=Object.create,bn=ln.propertyIsEnumerable,gn=on.isFinite,_n=function(n,t){return function(r){return n(t(r))}}(Object.keys,Object),jn=Math.max,dn=function(){function n(){}return function(t){return H(t)?yn?yn(t):(n.prototype=t,t=new n,n.prototype=nn,t):{}}}();i.prototype=dn(o.prototype),i.prototype.constructor=i;
+var mn=function(n,t){return function(r,e){if(null==r)return r;if(!U(r))return n(r,e);for(var u=r.length,o=t?u:-1,i=Object(r);(t?o--:++o<u)&&false!==e(i[o],o,i););return r}}(h),On=function(n){return function(t,r,e){var u=-1,o=Object(t);e=e(t);for(var i=e.length;i--;){var c=e[n?i:++u];if(false===r(o[c],c,o))break}return t}}(),xn=Y,An=String,En=function(n){return function(t,r,e){var u=Object(t);if(!U(t)){var o=_(r);t=qn(t),r=function(n){return o(u[n],n,u)}}return r=n(t,r,e),-1<r?u[o?t[r]:r]:nn}}(function(n,t,r){
+var e=null==n?0:n.length;if(!e)return-1;r=null==r?0:Fn(r),0>r&&(r=jn(e+r,0));n:{for(t=_(t),e=n.length,r+=-1;++r<e;)if(t(n[r],r,n)){n=r;break n}n=-1}return n}),wn=x(function(n,t,r){return T(n,t,r)}),kn=x(function(n,t){return f(n,1,t)}),Nn=x(function(n,t,r){return f(n,Tn(t)||0,r)}),Sn=Array.isArray,Fn=Number,Tn=Number,Bn=S(function(n,t){N(t,_n(t),n)}),Rn=S(function(n,t){N(t,I(t),n)}),Dn=S(function(n,t,r,e){N(t,$n(t),n,e)}),In=x(function(n){return n.push(nn,c),Dn.apply(nn,n)}),qn=_n,$n=I,Pn=function(n){
+return xn(q(n,nn,$),n+"")}(function(n,t){return null==n?{}:O(n,d(t,An))});o.assignIn=Rn,o.before=J,o.bind=wn,o.chain=function(n){return n=o(n),n.__chain__=true,n},o.compact=function(n){return p(n,Boolean)},o.concat=function(){var n=arguments.length;if(!n)return[];for(var r=Array(n-1),e=arguments[0];n--;)r[n-1]=arguments[n];return t(Sn(e)?E(e):[e],s(r,1))},o.create=function(n,t){var r=dn(n);return null==t?r:Bn(r,t)},o.defaults=In,o.defer=kn,o.delay=Nn,o.filter=function(n,t){return p(n,_(t))},o.flatten=$,
+o.flattenDeep=function(n){return(null==n?0:n.length)?s(n,tn):[]},o.iteratee=_,o.keys=qn,o.map=function(n,t){return d(n,_(t))},o.matches=function(n){return m(Bn({},n))},o.mixin=Z,o.negate=function(n){if(typeof n!="function")throw new TypeError("Expected a function");return function(){return!n.apply(this,arguments)}},o.once=function(n){return J(2,n)},o.pick=Pn,o.slice=function(n,t,r){var e=null==n?0:n.length;return r=r===nn?e:+r,e?A(n,null==t?0:+t,r):[]},o.sortBy=function(n,t){var e=0;return t=_(t),
+d(d(n,function(n,r,u){return{value:n,index:e++,criteria:t(n,r,u)}}).sort(function(n,t){var r;n:{r=n.criteria;var e=t.criteria;if(r!==e){var u=r!==nn,o=null===r,i=r===r,c=e!==nn,f=null===e,a=e===e;if(!f&&r>e||o&&c&&a||!u&&a||!i){r=1;break n}if(!o&&r<e||f&&u&&i||!c&&i||!a){r=-1;break n}}r=0}return r||n.index-t.index}),r("value"))},o.tap=function(n,t){return t(n),n},o.thru=function(n,t){return t(n)},o.toArray=function(n){return U(n)?n.length?E(n):[]:X(n)},o.values=X,o.extend=Rn,Z(o,o),o.clone=function(n){
+return H(n)?Sn(n)?E(n):N(n,_n(n)):n},o.escape=function(n){return(n=W(n))&&en.test(n)?n.replace(rn,fn):n},o.every=function(n,t,r){return t=r?nn:t,a(n,_(t))},o.find=En,o.forEach=C,o.has=function(n,t){return null!=n&&pn.call(n,t)},o.head=P,o.identity=Y,o.indexOf=z,o.isArguments=n,o.isArray=Sn,o.isBoolean=function(n){return true===n||false===n||K(n)&&"[object Boolean]"==hn.call(n)},o.isDate=function(n){return K(n)&&"[object Date]"==hn.call(n)},o.isEmpty=function(t){return U(t)&&(Sn(t)||Q(t)||V(t.splice)||n(t))?!t.length:!_n(t).length;
+},o.isEqual=function(n,t){return b(n,t)},o.isFinite=function(n){return typeof n=="number"&&gn(n)},o.isFunction=V,o.isNaN=function(n){return L(n)&&n!=+n},o.isNull=function(n){return null===n},o.isNumber=L,o.isObject=H,o.isRegExp=function(n){return K(n)&&"[object RegExp]"==hn.call(n)},o.isString=Q,o.isUndefined=function(n){return n===nn},o.last=function(n){var t=null==n?0:n.length;return t?n[t-1]:nn},o.max=function(n){return n&&n.length?l(n,Y,y):nn},o.min=function(n){return n&&n.length?l(n,Y,j):nn},
+o.noConflict=function(){return on._===this&&(on._=vn),this},o.noop=function(){},o.reduce=G,o.result=function(n,t,r){return t=null==n?nn:n[t],t===nn&&(t=r),V(t)?t.call(n):t},o.size=function(n){return null==n?0:(n=U(n)?n:_n(n),n.length)},o.some=function(n,t,r){return t=r?nn:t,w(n,_(t))},o.uniqueId=function(n){var t=++sn;return W(n)+t},o.each=C,o.first=P,Z(o,function(){var n={};return h(o,function(t,r){pn.call(o.prototype,r)||(n[r]=t)}),n}(),{chain:false}),o.VERSION="4.16.6",mn("pop join replace reverse split push shift sort splice unshift".split(" "),function(n){
+var t=(/^(?:replace|split)$/.test(n)?String.prototype:an)[n],r=/^(?:push|sort|unshift)$/.test(n)?"tap":"thru",e=/^(?:pop|join|replace|shift)$/.test(n);o.prototype[n]=function(){var n=arguments;if(e&&!this.__chain__){var u=this.value();return t.apply(Sn(u)?u:[],n)}return this[r](function(r){return t.apply(Sn(r)?r:[],n)})}}),o.prototype.toJSON=o.prototype.valueOf=o.prototype.value=function(){return k(this.__wrapped__,this.__actions__)},typeof define=="function"&&typeof define.amd=="object"&&define.amd?(on._=o,
+define(function(){return o})):cn?((cn.exports=o)._=o,un._=o):on._=o}).call(this);

countBy.js

@@ -18,8 +18,7 @@ var hasOwnProperty = objectProto.hasOwnProperty;
  * @since 0.5.0
  * @category Collection
  * @param {Array|Object} collection The collection to iterate over.
- * @param {Function} [iteratee=_.identity]
- *  The iteratee to transform keys.
+ * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
  * @returns {Object} Returns the composed aggregate object.
  * @example
  *

create.js

@@ -37,7 +37,7 @@ var baseAssign = require('./_baseAssign'),
  */
 function create(prototype, properties) {
   var result = baseCreate(prototype);
-  return properties ? baseAssign(result, properties) : result;
+  return properties == null ? result : baseAssign(result, properties);
 }
 
 module.exports = create;

drop.js

@@ -27,7 +27,7 @@ var baseSlice = require('./_baseSlice'),
  * // => [1, 2, 3]
  */
 function drop(array, n, guard) {
-  var length = array ? array.length : 0;
+  var length = array == null ? 0 : array.length;
   if (!length) {
     return [];
   }

dropRight.js

@@ -27,7 +27,7 @@ var baseSlice = require('./_baseSlice'),
  * // => [1, 2, 3]
  */
 function dropRight(array, n, guard) {
-  var length = array ? array.length : 0;
+  var length = array == null ? 0 : array.length;
   if (!length) {
     return [];
   }

dropWhile.js

@@ -11,8 +11,7 @@ var baseIteratee = require('./_baseIteratee'),
  * @since 3.0.0
  * @category Array
  * @param {Array} array The array to query.
- * @param {Function} [predicate=_.identity]
- *  The function invoked per iteration.
+ * @param {Function} [predicate=_.identity] The function invoked per iteration.
  * @returns {Array} Returns the slice of `array`.
  * @example
  *

every.js

@@ -19,8 +19,7 @@ var arrayEvery = require('./_arrayEvery'),
  * @since 0.1.0
  * @category Collection
  * @param {Array|Object} collection The collection to iterate over.
- * @param {Function} [predicate=_.identity]
- *  The function invoked per iteration.
+ * @param {Function} [predicate=_.identity] The function invoked per iteration.
  * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
  * @returns {boolean} Returns `true` if all elements pass the predicate check,
  *  else `false`.

fill.js

@@ -31,7 +31,7 @@ var baseFill = require('./_baseFill'),
  * // => [4, '*', '*', 10]
  */
 function fill(array, value, start, end) {
-  var length = array ? array.length : 0;
+  var length = array == null ? 0 : array.length;
   if (!length) {
     return [];
   }

filter.js

@@ -15,8 +15,7 @@ var arrayFilter = require('./_arrayFilter'),
  * @since 0.1.0
  * @category Collection
  * @param {Array|Object} collection The collection to iterate over.
- * @param {Function} [predicate=_.identity]
- *  The function invoked per iteration.
+ * @param {Function} [predicate=_.identity] The function invoked per iteration.
  * @returns {Array} Returns the new filtered array.
  * @see _.reject
  * @example

find.js

@@ -11,8 +11,7 @@ var createFind = require('./_createFind'),
  * @since 0.1.0
  * @category Collection
  * @param {Array|Object} collection The collection to inspect.
- * @param {Function} [predicate=_.identity]
- *  The function invoked per iteration.
+ * @param {Function} [predicate=_.identity] The function invoked per iteration.
  * @param {number} [fromIndex=0] The index to search from.
  * @returns {*} Returns the matched element, else `undefined`.
  * @example

findIndex.js

@@ -14,8 +14,7 @@ var nativeMax = Math.max;
  * @since 1.1.0
  * @category Array
  * @param {Array} array The array to inspect.
- * @param {Function} [predicate=_.identity]
- *  The function invoked per iteration.
+ * @param {Function} [predicate=_.identity] The function invoked per iteration.
  * @param {number} [fromIndex=0] The index to search from.
  * @returns {number} Returns the index of the found element, else `-1`.
  * @example
@@ -42,7 +41,7 @@ var nativeMax = Math.max;
  * // => 2
  */
 function findIndex(array, predicate, fromIndex) {
-  var length = array ? array.length : 0;
+  var length = array == null ? 0 : array.length;
   if (!length) {
     return -1;
   }

findLast.js

@@ -10,8 +10,7 @@ var createFind = require('./_createFind'),
  * @since 2.0.0
  * @category Collection
  * @param {Array|Object} collection The collection to inspect.
- * @param {Function} [predicate=_.identity]
- *  The function invoked per iteration.
+ * @param {Function} [predicate=_.identity] The function invoked per iteration.
  * @param {number} [fromIndex=collection.length-1] The index to search from.
  * @returns {*} Returns the matched element, else `undefined`.
  * @example

findLastIndex.js

@@ -15,8 +15,7 @@ var nativeMax = Math.max,
  * @since 2.0.0
  * @category Array
  * @param {Array} array The array to inspect.
- * @param {Function} [predicate=_.identity]
- *  The function invoked per iteration.
+ * @param {Function} [predicate=_.identity] The function invoked per iteration.
  * @param {number} [fromIndex=array.length-1] The index to search from.
  * @returns {number} Returns the index of the found element, else `-1`.
  * @example
@@ -43,7 +42,7 @@ var nativeMax = Math.max,
  * // => 0
  */
 function findLastIndex(array, predicate, fromIndex) {
-  var length = array ? array.length : 0;
+  var length = array == null ? 0 : array.length;
   if (!length) {
     return -1;
   }

flatMap.js

@@ -11,8 +11,7 @@ var baseFlatten = require('./_baseFlatten'),
  * @since 4.0.0
  * @category Collection
  * @param {Array|Object} collection The collection to iterate over.
- * @param {Function} [iteratee=_.identity]
- *  The function invoked per iteration.
+ * @param {Function} [iteratee=_.identity] The function invoked per iteration.
  * @returns {Array} Returns the new flattened array.
  * @example
  *

flatMapDeep.js

@@ -13,8 +13,7 @@ var INFINITY = 1 / 0;
  * @since 4.7.0
  * @category Collection
  * @param {Array|Object} collection The collection to iterate over.
- * @param {Function} [iteratee=_.identity]
- *  The function invoked per iteration.
+ * @param {Function} [iteratee=_.identity] The function invoked per iteration.
  * @returns {Array} Returns the new flattened array.
  * @example
  *

flatMapDepth.js

@@ -11,8 +11,7 @@ var baseFlatten = require('./_baseFlatten'),
  * @since 4.7.0
  * @category Collection
  * @param {Array|Object} collection The collection to iterate over.
- * @param {Function} [iteratee=_.identity]
- *  The function invoked per iteration.
+ * @param {Function} [iteratee=_.identity] The function invoked per iteration.
  * @param {number} [depth=1] The maximum recursion depth.
  * @returns {Array} Returns the new flattened array.
  * @example

flatten.js

@@ -15,7 +15,7 @@ var baseFlatten = require('./_baseFlatten');
  * // => [1, 2, [3, [4]], 5]
  */
 function flatten(array) {
-  var length = array ? array.length : 0;
+  var length = array == null ? 0 : array.length;
   return length ? baseFlatten(array, 1) : [];
 }
 

flattenDeep.js

@@ -18,7 +18,7 @@ var INFINITY = 1 / 0;
  * // => [1, 2, 3, 4, 5]
  */
 function flattenDeep(array) {
-  var length = array ? array.length : 0;
+  var length = array == null ? 0 : array.length;
   return length ? baseFlatten(array, INFINITY) : [];
 }
 

flattenDepth.js

@@ -22,7 +22,7 @@ var baseFlatten = require('./_baseFlatten'),
  * // => [1, 2, 3, [4], 5]
  */
 function flattenDepth(array, depth) {
-  var length = array ? array.length : 0;
+  var length = array == null ? 0 : array.length;
   if (!length) {
     return [];
   }

forEach.js

@@ -1,6 +1,6 @@
 var arrayEach = require('./_arrayEach'),
     baseEach = require('./_baseEach'),
-    baseIteratee = require('./_baseIteratee'),
+    castFunction = require('./_castFunction'),
     isArray = require('./isArray');
 
 /**
@@ -35,7 +35,7 @@ var arrayEach = require('./_arrayEach'),
  */
 function forEach(collection, iteratee) {
   var func = isArray(collection) ? arrayEach : baseEach;
-  return func(collection, baseIteratee(iteratee, 3));
+  return func(collection, castFunction(iteratee));
 }
 
 module.exports = forEach;

forEachRight.js

@@ -1,6 +1,6 @@
 var arrayEachRight = require('./_arrayEachRight'),
     baseEachRight = require('./_baseEachRight'),
-    baseIteratee = require('./_baseIteratee'),
+    castFunction = require('./_castFunction'),
     isArray = require('./isArray');
 
 /**
@@ -25,7 +25,7 @@ var arrayEachRight = require('./_arrayEachRight'),
  */
 function forEachRight(collection, iteratee) {
   var func = isArray(collection) ? arrayEachRight : baseEachRight;
-  return func(collection, baseIteratee(iteratee, 3));
+  return func(collection, castFunction(iteratee));
 }
 
 module.exports = forEachRight;

forIn.js

@@ -1,5 +1,5 @@
 var baseFor = require('./_baseFor'),
-    baseIteratee = require('./_baseIteratee'),
+    castFunction = require('./_castFunction'),
     keysIn = require('./keysIn');
 
 /**
@@ -33,7 +33,7 @@ var baseFor = require('./_baseFor'),
 function forIn(object, iteratee) {
   return object == null
     ? object
-    : baseFor(object, baseIteratee(iteratee, 3), keysIn);
+    : baseFor(object, castFunction(iteratee), keysIn);
 }
 
 module.exports = forIn;

forInRight.js

@@ -1,5 +1,5 @@
 var baseForRight = require('./_baseForRight'),
-    baseIteratee = require('./_baseIteratee'),
+    castFunction = require('./_castFunction'),
     keysIn = require('./keysIn');
 
 /**
@@ -31,7 +31,7 @@ var baseForRight = require('./_baseForRight'),
 function forInRight(object, iteratee) {
   return object == null
     ? object
-    : baseForRight(object, baseIteratee(iteratee, 3), keysIn);
+    : baseForRight(object, castFunction(iteratee), keysIn);
 }
 
 module.exports = forInRight;

forOwn.js

@@ -1,5 +1,5 @@
 var baseForOwn = require('./_baseForOwn'),
-    baseIteratee = require('./_baseIteratee');
+    castFunction = require('./_castFunction');
 
 /**
  * Iterates over own enumerable string keyed properties of an object and
@@ -30,7 +30,7 @@ var baseForOwn = require('./_baseForOwn'),
  * // => Logs 'a' then 'b' (iteration order is not guaranteed).
  */
 function forOwn(object, iteratee) {
-  return object && baseForOwn(object, baseIteratee(iteratee, 3));
+  return object && baseForOwn(object, castFunction(iteratee));
 }
 
 module.exports = forOwn;

forOwnRight.js

@@ -1,5 +1,5 @@
 var baseForOwnRight = require('./_baseForOwnRight'),
-    baseIteratee = require('./_baseIteratee');
+    castFunction = require('./_castFunction');
 
 /**
  * This method is like `_.forOwn` except that it iterates over properties of
@@ -28,7 +28,7 @@ var baseForOwnRight = require('./_baseForOwnRight'),
  * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.
  */
 function forOwnRight(object, iteratee) {
-  return object && baseForOwnRight(object, baseIteratee(iteratee, 3));
+  return object && baseForOwnRight(object, castFunction(iteratee));
 }
 
 module.exports = forOwnRight;

fp/_baseConvert.js

@@ -1,5 +1,4 @@
 var mapping = require('./_mapping'),
-    mutateMap = mapping.mutate,
     fallbackHolder = require('./placeholder');
 
 /**
@@ -351,13 +350,16 @@ function baseConvert(util, name, func, options) {
    * @returns {Function} Returns the new converter function.
    */
   function createConverter(name, func) {
-    var oldOptions = options;
+    var realName = mapping.aliasToReal[name] || name,
+        methodName = mapping.remap[realName] || realName,
+        oldOptions = options;
+
     return function(options) {
       var newUtil = isLib ? pristine : helpers,
-          newFunc = isLib ? pristine[name] : func,
+          newFunc = isLib ? pristine[methodName] : func,
           newOptions = assign(assign({}, oldOptions), options);
 
-      return baseConvert(newUtil, name, newFunc, newOptions);
+      return baseConvert(newUtil, realName, newFunc, newOptions);
     };
   }
 
@@ -428,38 +430,37 @@ function baseConvert(util, name, func, options) {
    * @returns {Function} Returns the converted function.
    */
   function wrap(name, func) {
-    name = mapping.aliasToReal[name] || name;
-
     var result,
+        realName = mapping.aliasToReal[name] || name,
         wrapped = func,
-        wrapper = wrappers[name];
+        wrapper = wrappers[realName];
 
     if (wrapper) {
       wrapped = wrapper(func);
     }
     else if (config.immutable) {
-      if (mutateMap.array[name]) {
+      if (mapping.mutate.array[realName]) {
         wrapped = wrapImmutable(func, cloneArray);
       }
-      else if (mutateMap.object[name]) {
+      else if (mapping.mutate.object[realName]) {
         wrapped = wrapImmutable(func, createCloner(func));
       }
-      else if (mutateMap.set[name]) {
+      else if (mapping.mutate.set[realName]) {
         wrapped = wrapImmutable(func, cloneByPath);
       }
     }
     each(aryMethodKeys, function(aryKey) {
       each(mapping.aryMethod[aryKey], function(otherName) {
-        if (name == otherName) {
-          var spreadData = mapping.methodSpread[name],
+        if (realName == otherName) {
+          var spreadData = mapping.methodSpread[realName],
               afterRearg = spreadData && spreadData.afterRearg;
 
           result = afterRearg
-            ? castFixed(name, castRearg(name, wrapped, aryKey), aryKey)
-            : castRearg(name, castFixed(name, wrapped, aryKey), aryKey);
+            ? castFixed(realName, castRearg(realName, wrapped, aryKey), aryKey)
+            : castRearg(realName, castFixed(realName, wrapped, aryKey), aryKey);
 
-          result = castCap(name, result);
-          result = castCurry(name, result, aryKey);
+          result = castCap(realName, result);
+          result = castCurry(realName, result, aryKey);
           return false;
         }
       });
@@ -472,8 +473,8 @@ function baseConvert(util, name, func, options) {
         return func.apply(this, arguments);
       };
     }
-    result.convert = createConverter(name, func);
-    if (mapping.placeholder[name]) {
+    result.convert = createConverter(realName, func);
+    if (mapping.placeholder[realName]) {
       setPlaceholder = true;
       result.placeholder = func.placeholder = placeholder;
     }

fp/_convertBrowser.js

@@ -12,7 +12,7 @@ function browserConvert(lodash, options) {
   return baseConvert(lodash, lodash, options);
 }
 
-if (typeof _ == 'function') {
+if (typeof _ == 'function' && typeof _.runInContext == 'function') {
   _ = browserConvert(_.runInContext());
 }
 module.exports = browserConvert;

fromPairs.js

@@ -15,7 +15,7 @@
  */
 function fromPairs(pairs) {
   var index = -1,
-      length = pairs ? pairs.length : 0,
+      length = pairs == null ? 0 : pairs.length,
       result = {};
 
   while (++index < length) {

groupBy.js

@@ -19,8 +19,7 @@ var hasOwnProperty = objectProto.hasOwnProperty;
  * @since 0.1.0
  * @category Collection
  * @param {Array|Object} collection The collection to iterate over.
- * @param {Function} [iteratee=_.identity]
- *  The iteratee to transform keys.
+ * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
  * @returns {Object} Returns the composed aggregate object.
  * @example
  *

indexOf.js

@@ -28,7 +28,7 @@ var nativeMax = Math.max;
  * // => 3
  */
 function indexOf(array, value, fromIndex) {
-  var length = array ? array.length : 0;
+  var length = array == null ? 0 : array.length;
   if (!length) {
     return -1;
   }

initial.js

@@ -15,7 +15,7 @@ var baseSlice = require('./_baseSlice');
  * // => [1, 2]
  */
 function initial(array) {
-  var length = array ? array.length : 0;
+  var length = array == null ? 0 : array.length;
   return length ? baseSlice(array, 0, -1) : [];
 }
 

intersectionWith.js

@@ -29,9 +29,8 @@ var intersectionWith = baseRest(function(arrays) {
   var comparator = last(arrays),
       mapped = arrayMap(arrays, castArrayLikeObject);
 
-  if (comparator === last(mapped)) {
-    comparator = undefined;
-  } else {
+  comparator = typeof comparator == 'function' ? comparator : undefined;
+  if (comparator) {
     mapped.pop();
   }
   return (mapped.length && mapped[0] === arrays[0])

isArguments.js

@@ -1,7 +1,5 @@
-var isArrayLikeObject = require('./isArrayLikeObject');
-
-/** `Object#toString` result references. */
-var argsTag = '[object Arguments]';
+var baseIsArguments = require('./_baseIsArguments'),
+    isObjectLike = require('./isObjectLike');
 
 /** Used for built-in method references. */
 var objectProto = Object.prototype;
@@ -9,13 +7,6 @@ var objectProto = Object.prototype;
 /** Used to check objects for own properties. */
 var hasOwnProperty = objectProto.hasOwnProperty;
 
-/**
- * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
- * of values.
- */
-var objectToString = objectProto.toString;
-
 /** Built-in value references. */
 var propertyIsEnumerable = objectProto.propertyIsEnumerable;
 
@@ -37,10 +28,9 @@ var propertyIsEnumerable = objectProto.propertyIsEnumerable;
  * _.isArguments([1, 2, 3]);
  * // => false
  */
-function isArguments(value) {
-  // Safari 8.1 makes `arguments.callee` enumerable in strict mode.
-  return isArrayLikeObject(value) && hasOwnProperty.call(value, 'callee') &&
-    (!propertyIsEnumerable.call(value, 'callee') || objectToString.call(value) == argsTag);
-}
+var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {
+  return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&
+    !propertyIsEnumerable.call(value, 'callee');
+};
 
 module.exports = isArguments;

isBoolean.js

@@ -1,18 +1,9 @@
-var isObjectLike = require('./isObjectLike');
+var baseGetTag = require('./_baseGetTag'),
+    isObjectLike = require('./isObjectLike');
 
 /** `Object#toString` result references. */
 var boolTag = '[object Boolean]';
 
-/** 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;
-
 /**
  * Checks if `value` is classified as a boolean primitive or object.
  *
@@ -32,7 +23,7 @@ var objectToString = objectProto.toString;
  */
 function isBoolean(value) {
   return value === true || value === false ||
-    (isObjectLike(value) && objectToString.call(value) == boolTag);
+    (isObjectLike(value) && baseGetTag(value) == boolTag);
 }
 
 module.exports = isBoolean;

isElement.js

@@ -19,7 +19,7 @@ var isObjectLike = require('./isObjectLike'),
  * // => false
  */
 function isElement(value) {
-  return value != null && value.nodeType === 1 && isObjectLike(value) && !isPlainObject(value);
+  return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);
 }
 
 module.exports = isElement;

isEmpty.js

@@ -1,10 +1,11 @@
-var getTag = require('./_getTag'),
+var baseKeys = require('./_baseKeys'),
+    getTag = require('./_getTag'),
     isArguments = require('./isArguments'),
     isArray = require('./isArray'),
     isArrayLike = require('./isArrayLike'),
     isBuffer = require('./isBuffer'),
     isPrototype = require('./_isPrototype'),
-    nativeKeys = require('./_nativeKeys');
+    isTypedArray = require('./isTypedArray');
 
 /** `Object#toString` result references. */
 var mapTag = '[object Map]',
@@ -50,9 +51,12 @@ var hasOwnProperty = objectProto.hasOwnProperty;
  * // => false
  */
 function isEmpty(value) {
+  if (value == null) {
+    return true;
+  }
   if (isArrayLike(value) &&
-      (isArray(value) || typeof value == 'string' ||
-        typeof value.splice == 'function' || isBuffer(value) || isArguments(value))) {
+      (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||
+        isBuffer(value) || isTypedArray(value) || isArguments(value))) {
     return !value.length;
   }
   var tag = getTag(value);
@@ -60,7 +64,7 @@ function isEmpty(value) {
     return !value.size;
   }
   if (isPrototype(value)) {
-    return !nativeKeys(value).length;
+    return !baseKeys(value).length;
   }
   for (var key in value) {
     if (hasOwnProperty.call(value, key)) {

isError.js

@@ -1,17 +1,10 @@
-var isObjectLike = require('./isObjectLike');
+var baseGetTag = require('./_baseGetTag'),
+    isObjectLike = require('./isObjectLike'),
+    isPlainObject = require('./isPlainObject');
 
 /** `Object#toString` result references. */
-var errorTag = '[object Error]';
-
-/** 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;
+var domExcTag = '[object DOMException]',
+    errorTag = '[object Error]';
 
 /**
  * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,
@@ -35,8 +28,9 @@ function isError(value) {
   if (!isObjectLike(value)) {
     return false;
   }
-  return (objectToString.call(value) == errorTag) ||
-    (typeof value.message == 'string' && typeof value.name == 'string');
+  var tag = baseGetTag(value);
+  return tag == errorTag || tag == domExcTag ||
+    (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value));
 }
 
 module.exports = isError;

isFunction.js

@@ -1,18 +1,11 @@
-var isObject = require('./isObject');
+var baseGetTag = require('./_baseGetTag'),
+    isObject = require('./isObject');
 
 /** `Object#toString` result references. */
-var funcTag = '[object Function]',
-    genTag = '[object GeneratorFunction]';
-
-/** 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;
+var asyncTag = '[object AsyncFunction]',
+    funcTag = '[object Function]',
+    genTag = '[object GeneratorFunction]',
+    proxyTag = '[object Proxy]';
 
 /**
  * Checks if `value` is classified as a `Function` object.
@@ -32,10 +25,13 @@ var objectToString = objectProto.toString;
  * // => false
  */
 function isFunction(value) {
+  if (!isObject(value)) {
+    return false;
+  }
   // The use of `Object#toString` avoids issues with the `typeof` operator
-  // in Safari 8-9 which returns 'object' for typed array and other constructors.
-  var tag = isObject(value) ? objectToString.call(value) : '';
-  return tag == funcTag || tag == genTag;
+  // in Safari 9 which returns 'object' for typed arrays and other constructors.
+  var tag = baseGetTag(value);
+  return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;
 }
 
 module.exports = isFunction;

isNumber.js

@@ -1,18 +1,9 @@
-var isObjectLike = require('./isObjectLike');
+var baseGetTag = require('./_baseGetTag'),
+    isObjectLike = require('./isObjectLike');
 
 /** `Object#toString` result references. */
 var numberTag = '[object Number]';
 
-/** 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;
-
 /**
  * Checks if `value` is classified as a `Number` primitive or object.
  *
@@ -41,7 +32,7 @@ var objectToString = objectProto.toString;
  */
 function isNumber(value) {
   return typeof value == 'number' ||
-    (isObjectLike(value) && objectToString.call(value) == numberTag);
+    (isObjectLike(value) && baseGetTag(value) == numberTag);
 }
 
 module.exports = isNumber;

isPlainObject.js

@@ -1,4 +1,5 @@
-var getPrototype = require('./_getPrototype'),
+var baseGetTag = require('./_baseGetTag'),
+    getPrototype = require('./_getPrototype'),
     isObjectLike = require('./isObjectLike');
 
 /** `Object#toString` result references. */
@@ -17,13 +18,6 @@ var hasOwnProperty = objectProto.hasOwnProperty;
 /** Used to infer the `Object` constructor. */
 var objectCtorString = funcToString.call(Object);
 
-/**
- * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
- * of values.
- */
-var objectToString = objectProto.toString;
-
 /**
  * Checks if `value` is a plain object, that is, an object created by the
  * `Object` constructor or one with a `[[Prototype]]` of `null`.
@@ -53,7 +47,7 @@ var objectToString = objectProto.toString;
  * // => true
  */
 function isPlainObject(value) {
-  if (!isObjectLike(value) || objectToString.call(value) != objectTag) {
+  if (!isObjectLike(value) || baseGetTag(value) != objectTag) {
     return false;
   }
   var proto = getPrototype(value);
@@ -61,8 +55,8 @@ function isPlainObject(value) {
     return true;
   }
   var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;
-  return (typeof Ctor == 'function' &&
-    Ctor instanceof Ctor && funcToString.call(Ctor) == objectCtorString);
+  return typeof Ctor == 'function' && Ctor instanceof Ctor &&
+    funcToString.call(Ctor) == objectCtorString;
 }
 
 module.exports = isPlainObject;

isString.js

@@ -1,19 +1,10 @@
-var isArray = require('./isArray'),
+var baseGetTag = require('./_baseGetTag'),
+    isArray = require('./isArray'),
     isObjectLike = require('./isObjectLike');
 
 /** `Object#toString` result references. */
 var stringTag = '[object String]';
 
-/** 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;
-
 /**
  * Checks if `value` is classified as a `String` primitive or object.
  *
@@ -33,7 +24,7 @@ var objectToString = objectProto.toString;
  */
 function isString(value) {
   return typeof value == 'string' ||
-    (!isArray(value) && isObjectLike(value) && objectToString.call(value) == stringTag);
+    (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);
 }
 
 module.exports = isString;

isSymbol.js

@@ -1,18 +1,9 @@
-var isObjectLike = require('./isObjectLike');
+var baseGetTag = require('./_baseGetTag'),
+    isObjectLike = require('./isObjectLike');
 
 /** `Object#toString` result references. */
 var symbolTag = '[object Symbol]';
 
-/** 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;
-
 /**
  * Checks if `value` is classified as a `Symbol` primitive or object.
  *
@@ -32,7 +23,7 @@ var objectToString = objectProto.toString;
  */
 function isSymbol(value) {
   return typeof value == 'symbol' ||
-    (isObjectLike(value) && objectToString.call(value) == symbolTag);
+    (isObjectLike(value) && baseGetTag(value) == symbolTag);
 }
 
 module.exports = isSymbol;

isWeakSet.js

@@ -1,18 +1,9 @@
-var isObjectLike = require('./isObjectLike');
+var baseGetTag = require('./_baseGetTag'),
+    isObjectLike = require('./isObjectLike');
 
 /** `Object#toString` result references. */
 var weakSetTag = '[object WeakSet]';
 
-/** 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;
-
 /**
  * Checks if `value` is classified as a `WeakSet` object.
  *
@@ -31,7 +22,7 @@ var objectToString = objectProto.toString;
  * // => false
  */
 function isWeakSet(value) {
-  return isObjectLike(value) && objectToString.call(value) == weakSetTag;
+  return isObjectLike(value) && baseGetTag(value) == weakSetTag;
 }
 
 module.exports = isWeakSet;