Bump to v4.11.1.

README.md

@@ -1,4 +1,4 @@
-# lodash-es v4.9.0
+# lodash-es v4.11.1
 
 The [Lodash](https://lodash.com/) library exported as [ES](http://www.ecma-international.org/ecma-262/6.0/) modules.
 
@@ -7,4 +7,4 @@ Generated using [lodash-cli](https://www.npmjs.com/package/lodash-cli):
 $ lodash modularize exports=es -o ./
 ```
 
-See the [package source](https://github.com/lodash/lodash/tree/4.9.0-es) for more details.
+See the [package source](https://github.com/lodash/lodash/tree/4.11.1-es) for more details.

_baseFor.js

@@ -2,7 +2,7 @@ import createBaseFor from './_createBaseFor';
 
 /**
  * The base implementation of `baseForOwn` which iterates over `object`
- * properties returned by `keysFunc` invoking `iteratee` for each property.
+ * properties returned by `keysFunc` and invokes `iteratee` for each property.
  * Iteratee functions may exit iteration early by explicitly returning `false`.
  *
  * @private

_baseGet.js

@@ -1,4 +1,4 @@
-import baseCastPath from './_baseCastPath';
+import castPath from './_castPath';
 import isKey from './_isKey';
 
 /**
@@ -10,7 +10,7 @@ import isKey from './_isKey';
  * @returns {*} Returns the resolved value.
  */
 function baseGet(object, path) {
-  path = isKey(path, object) ? [path] : baseCastPath(path);
+  path = isKey(path, object) ? [path] : castPath(path);
 
   var index = 0,
       length = path.length;

_baseInvoke.js

@@ -1,5 +1,5 @@
 import apply from './_apply';
-import baseCastPath from './_baseCastPath';
+import castPath from './_castPath';
 import isKey from './_isKey';
 import last from './last';
 import parent from './_parent';
@@ -16,7 +16,7 @@ import parent from './_parent';
  */
 function baseInvoke(object, path, args) {
   if (!isKey(path, object)) {
-    path = baseCastPath(path);
+    path = castPath(path);
     object = parent(object, path);
     path = last(path);
   }

_baseNth.js

@@ -0,0 +1,20 @@
+import isIndex from './_isIndex';
+
+/**
+ * The base implementation of `_.nth` which doesn't coerce `n` to an integer.
+ *
+ * @private
+ * @param {Array} array The array to query.
+ * @param {number} n The index of the element to return.
+ * @returns {*} Returns the nth element of `array`.
+ */
+function baseNth(array, n) {
+  var length = array.length;
+  if (!length) {
+    return;
+  }
+  n += n < 0 ? length : 0;
+  return isIndex(n, length) ? array[n] : undefined;
+}
+
+export default baseNth;

_baseOrderBy.js

@@ -2,6 +2,7 @@ import arrayMap from './_arrayMap';
 import baseIteratee from './_baseIteratee';
 import baseMap from './_baseMap';
 import baseSortBy from './_baseSortBy';
+import baseUnary from './_baseUnary';
 import compareMultiple from './_compareMultiple';
 import identity from './identity';
 
@@ -16,7 +17,7 @@ import identity from './identity';
  */
 function baseOrderBy(collection, iteratees, orders) {
   var index = -1;
-  iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseIteratee);
+  iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(baseIteratee));
 
   var result = baseMap(collection, function(value, key, collection) {
     var criteria = arrayMap(iteratees, function(iteratee) {

_basePullAt.js

@@ -1,4 +1,4 @@
-import baseCastPath from './_baseCastPath';
+import castPath from './_castPath';
 import isIndex from './_isIndex';
 import isKey from './_isKey';
 import last from './last';
@@ -31,7 +31,7 @@ function basePullAt(array, indexes) {
         splice.call(array, index, 1);
       }
       else if (!isKey(index, array)) {
-        var path = baseCastPath(index),
+        var path = castPath(index),
             object = parent(array, path);
 
         if (object != null) {

_baseSet.js

@@ -1,5 +1,5 @@
 import assignValue from './_assignValue';
-import baseCastPath from './_baseCastPath';
+import castPath from './_castPath';
 import isIndex from './_isIndex';
 import isKey from './_isKey';
 import isObject from './isObject';
@@ -15,7 +15,7 @@ import isObject from './isObject';
  * @returns {Object} Returns `object`.
  */
 function baseSet(object, path, value, customizer) {
-  path = isKey(path, object) ? [path] : baseCastPath(path);
+  path = isKey(path, object) ? [path] : castPath(path);
 
   var index = -1,
       length = path.length,

_baseUnset.js

@@ -1,4 +1,4 @@
-import baseCastPath from './_baseCastPath';
+import castPath from './_castPath';
 import has from './has';
 import isKey from './_isKey';
 import last from './last';
@@ -13,7 +13,7 @@ import parent from './_parent';
  * @returns {boolean} Returns `true` if the property is deleted, else `false`.
  */
 function baseUnset(object, path) {
-  path = isKey(path, object) ? [path] : baseCastPath(path);
+  path = isKey(path, object) ? [path] : castPath(path);
   object = parent(object, path);
   var key = last(path);
   return (object != null && has(object, key)) ? delete object[key] : true;

_castArrayLikeObject.js

@@ -7,8 +7,8 @@ import isArrayLikeObject from './isArrayLikeObject';
  * @param {*} value The value to inspect.
  * @returns {Array|Object} Returns the cast array-like object.
  */
-function baseCastArrayLikeObject(value) {
+function castArrayLikeObject(value) {
   return isArrayLikeObject(value) ? value : [];
 }
 
-export default baseCastArrayLikeObject;
+export default castArrayLikeObject;

_castFunction.js

@@ -7,8 +7,8 @@ import identity from './identity';
  * @param {*} value The value to inspect.
  * @returns {Function} Returns cast function.
  */
-function baseCastFunction(value) {
+function castFunction(value) {
   return typeof value == 'function' ? value : identity;
 }
 
-export default baseCastFunction;
+export default castFunction;

_castPath.js

@@ -8,8 +8,8 @@ import stringToPath from './_stringToPath';
  * @param {*} value The value to inspect.
  * @returns {Array} Returns the cast property path array.
  */
-function baseCastPath(value) {
+function castPath(value) {
   return isArray(value) ? value : stringToPath(value);
 }
 
-export default baseCastPath;
+export default castPath;

_castSlice.js

@@ -0,0 +1,18 @@
+import baseSlice from './_baseSlice';
+
+/**
+ * Casts `array` to a slice if it's needed.
+ *
+ * @private
+ * @param {Array} array The array to inspect.
+ * @param {number} start The start position.
+ * @param {number} [end=array.length] The end position.
+ * @returns {Array} Returns the cast slice.
+ */
+function castSlice(array, start, end) {
+  var length = array.length;
+  end = end === undefined ? length : end;
+  return (!start && end >= length) ? array : baseSlice(array, start, end);
+}
+
+export default castSlice;

_copyObject.js

@@ -1,4 +1,4 @@
-import copyObjectWith from './_copyObjectWith';
+import assignValue from './_assignValue';
 
 /**
  * Copies properties of `source` to `object`.
@@ -7,10 +7,25 @@ import copyObjectWith from './_copyObjectWith';
  * @param {Object} source The object to copy properties from.
  * @param {Array} props The property identifiers to copy.
  * @param {Object} [object={}] The object to copy properties to.
+ * @param {Function} [customizer] The function to customize copied values.
  * @returns {Object} Returns `object`.
  */
-function copyObject(source, props, object) {
-  return copyObjectWith(source, props, object);
+function copyObject(source, props, object, customizer) {
+  object || (object = {});
+
+  var index = -1,
+      length = props.length;
+
+  while (++index < length) {
+    var key = props[index];
+
+    var newValue = customizer
+      ? customizer(object[key], source[key], key, object, source)
+      : source[key];
+
+    assignValue(object, key, newValue);
+  }
+  return object;
 }
 
 export default copyObject;

_copyObjectWith.js

@@ -1,32 +0,0 @@
-import assignValue from './_assignValue';
-
-/**
- * This function is like `copyObject` except that it accepts a function to
- * customize copied values.
- *
- * @private
- * @param {Object} source The object to copy properties from.
- * @param {Array} props The property identifiers to copy.
- * @param {Object} [object={}] The object to copy properties to.
- * @param {Function} [customizer] The function to customize copied values.
- * @returns {Object} Returns `object`.
- */
-function copyObjectWith(source, props, object, customizer) {
-  object || (object = {});
-
-  var index = -1,
-      length = props.length;
-
-  while (++index < length) {
-    var key = props[index];
-
-    var newValue = customizer
-      ? customizer(object[key], source[key], key, object, source)
-      : source[key];
-
-    assignValue(object, key, newValue);
-  }
-  return object;
-}
-
-export default copyObjectWith;

_createCaseFirst.js

@@ -1,18 +1,8 @@
+import castSlice from './_castSlice';
+import reHasComplexSymbol from './_reHasComplexSymbol';
 import stringToArray from './_stringToArray';
 import toString from './toString';
 
-/** Used to compose unicode character classes. */
-var rsAstralRange = '\\ud800-\\udfff',
-    rsComboMarksRange = '\\u0300-\\u036f\\ufe20-\\ufe23',
-    rsComboSymbolsRange = '\\u20d0-\\u20f0',
-    rsVarRange = '\\ufe0e\\ufe0f';
-
-/** Used to compose unicode capture groups. */
-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 + ']');
-
 /**
  * Creates a function like `_.lowerFirst`.
  *
@@ -28,8 +18,13 @@ function createCaseFirst(methodName) {
       ? stringToArray(string)
       : undefined;
 
-    var chr = strSymbols ? strSymbols[0] : string.charAt(0),
-        trailing = strSymbols ? strSymbols.slice(1).join('') : string.slice(1);
+    var chr = strSymbols
+      ? strSymbols[0]
+      : string.charAt(0);
+
+    var trailing = strSymbols
+      ? castSlice(strSymbols, 1).join('')
+      : string.slice(1);
 
     return chr[methodName]() + trailing;
   };

_createCompounder.js

@@ -2,6 +2,12 @@ import arrayReduce from './_arrayReduce';
 import deburr from './deburr';
 import words from './words';
 
+/** Used to compose unicode capture groups. */
+var rsApos = "['\u2019]";
+
+/** Used to match apostrophes. */
+var reApos = RegExp(rsApos, 'g');
+
 /**
  * Creates a function like `_.camelCase`.
  *
@@ -11,7 +17,7 @@ import words from './words';
  */
 function createCompounder(callback) {
   return function(string) {
-    return arrayReduce(words(deburr(string)), callback, '');
+    return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');
   };
 }
 

_createOver.js

@@ -2,6 +2,8 @@ import apply from './_apply';
 import arrayMap from './_arrayMap';
 import baseFlatten from './_baseFlatten';
 import baseIteratee from './_baseIteratee';
+import baseUnary from './_baseUnary';
+import isArray from './isArray';
 import isFlattenableIteratee from './_isFlattenableIteratee';
 import rest from './rest';
 
@@ -14,7 +16,10 @@ import rest from './rest';
  */
 function createOver(arrayFunc) {
   return rest(function(iteratees) {
-    iteratees = arrayMap(baseFlatten(iteratees, 1, isFlattenableIteratee), baseIteratee);
+    iteratees = (iteratees.length == 1 && isArray(iteratees[0]))
+      ? arrayMap(iteratees[0], baseUnary(baseIteratee))
+      : arrayMap(baseFlatten(iteratees, 1, isFlattenableIteratee), baseUnary(baseIteratee));
+
     return rest(function(args) {
       var thisArg = this;
       return arrayFunc(iteratees, function(iteratee) {

_createPadding.js

@@ -1,19 +1,9 @@
 import baseRepeat from './_baseRepeat';
+import castSlice from './_castSlice';
+import reHasComplexSymbol from './_reHasComplexSymbol';
 import stringSize from './_stringSize';
 import stringToArray from './_stringToArray';
 
-/** Used to compose unicode character classes. */
-var rsAstralRange = '\\ud800-\\udfff',
-    rsComboMarksRange = '\\u0300-\\u036f\\ufe20-\\ufe23',
-    rsComboSymbolsRange = '\\u20d0-\\u20f0',
-    rsVarRange = '\\ufe0e\\ufe0f';
-
-/** Used to compose unicode capture groups. */
-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 + ']');
-
 /* Built-in method references for those with the same name as other `lodash` methods. */
 var nativeCeil = Math.ceil;
 
@@ -35,7 +25,7 @@ function createPadding(length, chars) {
   }
   var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));
   return reHasComplexSymbol.test(chars)
-    ? stringToArray(result).slice(0, length).join('')
+    ? castSlice(stringToArray(result), 0, length).join('')
     : result.slice(0, length);
 }
 

_createRecurryWrapper.js

@@ -1,4 +1,3 @@
-import copyArray from './_copyArray';
 import isLaziable from './_isLaziable';
 import setData from './_setData';
 
@@ -30,7 +29,6 @@ var BIND_FLAG = 1,
  */
 function createRecurryWrapper(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {
   var isCurry = bitmask & CURRY_FLAG,
-      newArgPos = argPos ? copyArray(argPos) : undefined,
       newHolders = isCurry ? holders : undefined,
       newHoldersRight = isCurry ? undefined : holders,
       newPartials = isCurry ? partials : undefined,
@@ -44,7 +42,7 @@ function createRecurryWrapper(func, bitmask, wrapFunc, placeholder, thisArg, par
   }
   var newData = [
     func, bitmask, thisArg, newPartials, newHolders, newPartialsRight,
-    newHoldersRight, newArgPos, ary, arity
+    newHoldersRight, argPos, ary, arity
   ];
 
   var result = wrapFunc.apply(undefined, newData);

_hasPath.js

@@ -1,4 +1,4 @@
-import baseCastPath from './_baseCastPath';
+import castPath from './_castPath';
 import isArguments from './isArguments';
 import isArray from './isArray';
 import isIndex from './_isIndex';
@@ -16,7 +16,7 @@ import isString from './isString';
  * @returns {boolean} Returns `true` if `path` exists, else `false`.
  */
 function hasPath(object, path, hasFunc) {
-  path = isKey(path, object) ? [path] : baseCastPath(path);
+  path = isKey(path, object) ? [path] : castPath(path);
 
   var result,
       index = -1,

_mergeData.js

@@ -1,6 +1,5 @@
 import composeArgs from './_composeArgs';
 import composeArgsRight from './_composeArgsRight';
-import copyArray from './_copyArray';
 import replaceHolders from './_replaceHolders';
 
 /** Used as the internal argument placeholder. */
@@ -58,20 +57,20 @@ function mergeData(data, source) {
   var value = source[3];
   if (value) {
     var partials = data[3];
-    data[3] = partials ? composeArgs(partials, value, source[4]) : copyArray(value);
-    data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : copyArray(source[4]);
+    data[3] = partials ? composeArgs(partials, value, source[4]) : value;
+    data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4];
   }
   // Compose partial right arguments.
   value = source[5];
   if (value) {
     partials = data[5];
-    data[5] = partials ? composeArgsRight(partials, value, source[6]) : copyArray(value);
-    data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : copyArray(source[6]);
+    data[5] = partials ? composeArgsRight(partials, value, source[6]) : value;
+    data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6];
   }
   // Use source `argPos` if available.
   value = source[7];
   if (value) {
-    data[7] = copyArray(value);
+    data[7] = value;
   }
   // Use source `ary` if it's smaller.
   if (srcBitmask & ARY_FLAG) {

_reHasComplexSymbol.js

@@ -0,0 +1,13 @@
+/** Used to compose unicode character classes. */
+var rsAstralRange = '\\ud800-\\udfff',
+    rsComboMarksRange = '\\u0300-\\u036f\\ufe20-\\ufe23',
+    rsComboSymbolsRange = '\\u20d0-\\u20f0',
+    rsVarRange = '\\ufe0e\\ufe0f';
+
+/** Used to compose unicode capture groups. */
+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 + ']');
+
+export default reHasComplexSymbol;

_stringSize.js

@@ -1,3 +1,5 @@
+import reHasComplexSymbol from './_reHasComplexSymbol';
+
 /** Used to compose unicode character classes. */
 var rsAstralRange = '\\ud800-\\udfff',
     rsComboMarksRange = '\\u0300-\\u036f\\ufe20-\\ufe23',
@@ -24,9 +26,6 @@ var reOptMod = rsModifier + '?',
 /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */
 var reComplexSymbol = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');
 
-/** 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 + ']');
-
 /**
  * Gets the number of symbols in `string`.
  *

_toKey.js

@@ -1,14 +1,14 @@
 import isSymbol from './isSymbol';
 
 /**
- * Casts `value` to a string if it's not a string or symbol.
+ * Converts `value` to a string key if it's not a string or symbol.
  *
  * @private
  * @param {*} value The value to inspect.
- * @returns {string|symbol} Returns the cast key.
+ * @returns {string|symbol} Returns the key.
  */
-function baseCastKey(key) {
+function toKey(key) {
   return (typeof key == 'string' || isSymbol(key)) ? key : (key + '');
 }
 
-export default baseCastKey;
+export default toKey;

array.default.js

@@ -24,6 +24,7 @@ import intersectionWith from './intersectionWith';
 import join from './join';
 import last from './last';
 import lastIndexOf from './lastIndexOf';
+import nth from './nth';
 import pull from './pull';
 import pullAll from './pullAll';
 import pullAllBy from './pullAllBy';
@@ -68,12 +69,12 @@ export default {
   fill, findIndex, findLastIndex, flatten, flattenDeep,
   flattenDepth, fromPairs, head, indexOf, initial,
   intersection, intersectionBy, intersectionWith, join, last,
-  lastIndexOf, pull, pullAll, pullAllBy, pullAllWith,
-  pullAt, remove, reverse, slice, sortedIndex,
-  sortedIndexBy, sortedIndexOf, sortedLastIndex, sortedLastIndexBy, sortedLastIndexOf,
-  sortedUniq, sortedUniqBy, tail, take, takeRight,
-  takeRightWhile, takeWhile, union, unionBy, unionWith,
-  uniq, uniqBy, uniqWith, unzip, unzipWith,
-  without, xor, xorBy, xorWith, zip,
-  zipObject, zipObjectDeep, zipWith
+  lastIndexOf, nth, pull, pullAll, pullAllBy,
+  pullAllWith, pullAt, remove, reverse, slice,
+  sortedIndex, sortedIndexBy, sortedIndexOf, sortedLastIndex, sortedLastIndexBy,
+  sortedLastIndexOf, sortedUniq, sortedUniqBy, tail, take,
+  takeRight, takeRightWhile, takeWhile, union, unionBy,
+  unionWith, uniq, uniqBy, uniqWith, unzip,
+  unzipWith, without, xor, xorBy, xorWith,
+  zip, zipObject, zipObjectDeep, zipWith
 };

array.js

@@ -24,6 +24,7 @@ export { default as intersectionWith } from './intersectionWith';
 export { default as join } from './join';
 export { default as last } from './last';
 export { default as lastIndexOf } from './lastIndexOf';
+export { default as nth } from './nth';
 export { default as pull } from './pull';
 export { default as pullAll } from './pullAll';
 export { default as pullAllBy } from './pullAllBy';

assignInWith.js

@@ -1,4 +1,4 @@
-import copyObjectWith from './_copyObjectWith';
+import copyObject from './_copyObject';
 import createAssigner from './_createAssigner';
 import keysIn from './keysIn';
 
@@ -31,7 +31,7 @@ import keysIn from './keysIn';
  * // => { 'a': 1, 'b': 2 }
  */
 var assignInWith = createAssigner(function(object, source, srcIndex, customizer) {
-  copyObjectWith(source, keysIn(source), object, customizer);
+  copyObject(source, keysIn(source), object, customizer);
 });
 
 export default assignInWith;

assignWith.js

@@ -1,4 +1,4 @@
-import copyObjectWith from './_copyObjectWith';
+import copyObject from './_copyObject';
 import createAssigner from './_createAssigner';
 import keys from './keys';
 
@@ -30,7 +30,7 @@ import keys from './keys';
  * // => { 'a': 1, 'b': 2 }
  */
 var assignWith = createAssigner(function(object, source, srcIndex, customizer) {
-  copyObjectWith(source, keys(source), object, customizer);
+  copyObject(source, keys(source), object, customizer);
 });
 
 export default assignWith;

at.js

@@ -10,8 +10,7 @@ import rest from './rest';
  * @since 1.0.0
  * @category Object
  * @param {Object} object The object to iterate over.
- * @param {...(string|string[])} [paths] The property paths of elements to pick,
- *  specified individually or in arrays.
+ * @param {...(string|string[])} [paths] The property paths of elements to pick.
  * @returns {Array} Returns the new array of picked elements.
  * @example
  *

bindAll.js

@@ -14,8 +14,7 @@ import rest from './rest';
  * @memberOf _
  * @category Util
  * @param {Object} object The object to bind and assign the bound methods to.
- * @param {...(string|string[])} methodNames The object method names to bind,
- *  specified individually or in arrays.
+ * @param {...(string|string[])} methodNames The object method names to bind.
  * @returns {Object} Returns `object`.
  * @example
  *

cond.js

@@ -7,7 +7,7 @@ import rest from './rest';
 var FUNC_ERROR_TEXT = 'Expected a function';
 
 /**
- * Creates a function that iterates over `pairs` invoking the corresponding
+ * Creates a function that iterates over `pairs` and invokes the corresponding
  * function of the first predicate to return truthy. The predicate-function
  * pairs are invoked with the `this` binding and arguments of the created
  * function.

debounce.js

@@ -62,12 +62,13 @@ var nativeMax = Math.max,
 function debounce(func, wait, options) {
   var lastArgs,
       lastThis,
+      maxWait,
       result,
       timerId,
       lastCallTime = 0,
       lastInvokeTime = 0,
       leading = false,
-      maxWait = false,
+      maxing = false,
       trailing = true;
 
   if (typeof func != 'function') {
@@ -76,7 +77,8 @@ function debounce(func, wait, options) {
   wait = toNumber(wait) || 0;
   if (isObject(options)) {
     leading = !!options.leading;
-    maxWait = 'maxWait' in options && nativeMax(toNumber(options.maxWait) || 0, wait);
+    maxing = 'maxWait' in options;
+    maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;
     trailing = 'trailing' in options ? !!options.trailing : trailing;
   }
 
@@ -104,7 +106,7 @@ function debounce(func, wait, options) {
         timeSinceLastInvoke = time - lastInvokeTime,
         result = wait - timeSinceLastCall;
 
-    return maxWait === false ? result : nativeMin(result, maxWait - timeSinceLastInvoke);
+    return maxing ? nativeMin(result, maxWait - timeSinceLastInvoke) : result;
   }
 
   function shouldInvoke(time) {
@@ -115,7 +117,7 @@ function debounce(func, wait, options) {
     // trailing edge, the system time has gone backwards and we're treating
     // it as the trailing edge, or we've hit the `maxWait` limit.
     return (!lastCallTime || (timeSinceLastCall >= wait) ||
-      (timeSinceLastCall < 0) || (maxWait !== false && timeSinceLastInvoke >= maxWait));
+      (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));
   }
 
   function timerExpired() {
@@ -164,10 +166,15 @@ function debounce(func, wait, options) {
       if (timerId === undefined) {
         return leadingEdge(lastCallTime);
       }
-      // Handle invocations in a tight loop.
-      clearTimeout(timerId);
+      if (maxing) {
+        // Handle invocations in a tight loop.
+        clearTimeout(timerId);
+        timerId = setTimeout(timerExpired, wait);
+        return invokeFunc(lastCallTime);
+      }
+    }
+    if (timerId === undefined) {
       timerId = setTimeout(timerExpired, wait);
-      return invokeFunc(lastCallTime);
     }
     return result;
   }

forEach.js

@@ -4,7 +4,7 @@ import baseIteratee from './_baseIteratee';
 import isArray from './isArray';
 
 /**
- * Iterates over elements of `collection` invoking `iteratee` for each element.
+ * Iterates over elements of `collection` and invokes `iteratee` for each element.
  * The iteratee is invoked with three arguments: (value, index|key, collection).
  * Iteratee functions may exit iteration early by explicitly returning `false`.
  *

forIn.js

@@ -4,9 +4,9 @@ import keysIn from './keysIn';
 
 /**
  * Iterates over own and inherited enumerable string keyed properties of an
- * object invoking `iteratee` for each property. The iteratee is invoked with
- * three arguments: (value, key, object). Iteratee functions may exit iteration
- * early by explicitly returning `false`.
+ * object and invokes `iteratee` for each property. The iteratee is invoked
+ * with three arguments: (value, key, object). Iteratee functions may exit
+ * iteration early by explicitly returning `false`.
  *
  * @static
  * @memberOf _

forOwn.js

@@ -2,10 +2,10 @@ import baseForOwn from './_baseForOwn';
 import baseIteratee from './_baseIteratee';
 
 /**
- * Iterates over own enumerable string keyed properties of an object invoking
- * `iteratee` for each property. The iteratee is invoked with three arguments:
- * (value, key, object). Iteratee functions may exit iteration early by
- * explicitly returning `false`.
+ * Iterates over own enumerable string keyed properties of an object and
+ * invokes `iteratee` for each property. The iteratee is invoked with three
+ * arguments: (value, key, object). Iteratee functions may exit iteration
+ * early by explicitly returning `false`.
  *
  * @static
  * @memberOf _

head.js

@@ -17,7 +17,7 @@
  * // => undefined
  */
 function head(array) {
-  return array ? array[0] : undefined;
+  return (array && array.length) ? array[0] : undefined;
 }
 
 export default head;

intersection.js

@@ -1,6 +1,6 @@
 import arrayMap from './_arrayMap';
-import baseCastArrayLikeObject from './_baseCastArrayLikeObject';
 import baseIntersection from './_baseIntersection';
+import castArrayLikeObject from './_castArrayLikeObject';
 import rest from './rest';
 
 /**
@@ -21,7 +21,7 @@ import rest from './rest';
  * // => [2]
  */
 var intersection = rest(function(arrays) {
-  var mapped = arrayMap(arrays, baseCastArrayLikeObject);
+  var mapped = arrayMap(arrays, castArrayLikeObject);
   return (mapped.length && mapped[0] === arrays[0])
     ? baseIntersection(mapped)
     : [];

intersectionBy.js

@@ -1,7 +1,7 @@
 import arrayMap from './_arrayMap';
-import baseCastArrayLikeObject from './_baseCastArrayLikeObject';
 import baseIntersection from './_baseIntersection';
 import baseIteratee from './_baseIteratee';
+import castArrayLikeObject from './_castArrayLikeObject';
 import last from './last';
 import rest from './rest';
 
@@ -30,7 +30,7 @@ import rest from './rest';
  */
 var intersectionBy = rest(function(arrays) {
   var iteratee = last(arrays),
-      mapped = arrayMap(arrays, baseCastArrayLikeObject);
+      mapped = arrayMap(arrays, castArrayLikeObject);
 
   if (iteratee === last(mapped)) {
     iteratee = undefined;

intersectionWith.js

@@ -1,6 +1,6 @@
 import arrayMap from './_arrayMap';
-import baseCastArrayLikeObject from './_baseCastArrayLikeObject';
 import baseIntersection from './_baseIntersection';
+import castArrayLikeObject from './_castArrayLikeObject';
 import last from './last';
 import rest from './rest';
 
@@ -27,7 +27,7 @@ import rest from './rest';
  */
 var intersectionWith = rest(function(arrays) {
   var comparator = last(arrays),
-      mapped = arrayMap(arrays, baseCastArrayLikeObject);
+      mapped = arrayMap(arrays, castArrayLikeObject);
 
   if (comparator === last(mapped)) {
     comparator = undefined;

lodash.default.js

@@ -1,6 +1,6 @@
 /**
  * @license
- * lodash 4.9.0 (Custom Build) <https://lodash.com/>
+ * lodash 4.11.1 (Custom Build) <https://lodash.com/>
  * Build: `lodash modularize exports="es" -o ./`
  * Copyright jQuery Foundation and other contributors <https://jquery.org/>
  * Released under MIT license <https://lodash.com/license>
@@ -44,7 +44,7 @@ import toInteger from './toInteger';
 import lodash from './wrapperLodash';
 
 /** Used as the semantic version number. */
-var VERSION = '4.9.0';
+var VERSION = '4.11.1';
 
 /** Used to compose bitmasks for wrapper metadata. */
 var BIND_KEY_FLAG = 2;
@@ -342,6 +342,7 @@ lodash.meanBy = math.meanBy;
 lodash.min = math.min;
 lodash.minBy = math.minBy;
 lodash.multiply = math.multiply;
+lodash.nth = array.nth;
 lodash.noop = util.noop;
 lodash.now = date.now;
 lodash.pad = string.pad;

lodash.js

@@ -1,6 +1,6 @@
 /**
  * @license
- * lodash 4.9.0 (Custom Build) <https://lodash.com/>
+ * lodash 4.11.1 (Custom Build) <https://lodash.com/>
  * Build: `lodash modularize exports="es" -o ./`
  * Copyright jQuery Foundation and other contributors <https://jquery.org/>
  * Released under MIT license <https://lodash.com/license>
@@ -184,6 +184,7 @@ export { default as negate } from './negate';
 export { default as next } from './next';
 export { default as noop } from './noop';
 export { default as now } from './now';
+export { default as nth } from './nth';
 export { default as nthArg } from './nthArg';
 export { default as omit } from './omit';
 export { default as omitBy } from './omitBy';

map.js

@@ -14,8 +14,8 @@ import isArray from './isArray';
  * The guarded methods are:
  * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,
  * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,
- * `sampleSize`, `slice`, `some`, `sortBy`, `take`, `takeRight`, `template`,
- * `trim`, `trimEnd`, `trimStart`, and `words`
+ * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,
+ * `template`, `trim`, `trimEnd`, `trimStart`, and `words`
  *
  * @static
  * @memberOf _

mixin.js

@@ -46,7 +46,7 @@ function mixin(object, source, options) {
   var props = keys(source),
       methodNames = baseFunctions(source, props);
 
-  var chain = (isObject(options) && 'chain' in options) ? options.chain : true,
+  var chain = !(isObject(options) && 'chain' in options) || !!options.chain,
       isFunc = isFunction(object);
 
   arrayEach(methodNames, function(methodName) {

nth.js

@@ -0,0 +1,29 @@
+import baseNth from './_baseNth';
+import toInteger from './toInteger';
+
+/**
+ * Gets the nth element of `array`. If `n` is negative, the nth element
+ * from the end is returned.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.11.0
+ * @category Array
+ * @param {Array} array The array to query.
+ * @param {number} [n=0] The index of the element to return.
+ * @returns {*} Returns the nth element of `array`.
+ * @example
+ *
+ * var array = ['a', 'b', 'c', 'd'];
+ *
+ * _.nth(array, 1);
+ * // => 'b'
+ *
+ * _.nth(array, -2);
+ * // => 'c';
+ */
+function nth(array, n) {
+  return (array && array.length) ? baseNth(array, toInteger(n)) : undefined;
+}
+
+export default nth;

nthArg.js

@@ -1,7 +1,10 @@
+import baseNth from './_baseNth';
+import rest from './rest';
 import toInteger from './toInteger';
 
 /**
- * Creates a function that returns its nth argument.
+ * Creates a function that returns its nth argument. If `n` is negative,
+ * the nth argument from the end is returned.
  *
  * @static
  * @memberOf _
@@ -12,15 +15,18 @@ import toInteger from './toInteger';
  * @example
  *
  * var func = _.nthArg(1);
- *
- * func('a', 'b', 'c');
+ * func('a', 'b', 'c', 'd');
  * // => 'b'
+ *
+ * var func = _.nthArg(-2);
+ * func('a', 'b', 'c', 'd');
+ * // => 'c'
  */
 function nthArg(n) {
   n = toInteger(n);
-  return function() {
-    return arguments[n];
-  };
+  return rest(function(args) {
+    return baseNth(args, n);
+  });
 }
 
 export default nthArg;

omit.js

@@ -1,10 +1,10 @@
 import arrayMap from './_arrayMap';
-import baseCastKey from './_baseCastKey';
 import baseDifference from './_baseDifference';
 import baseFlatten from './_baseFlatten';
 import basePick from './_basePick';
 import getAllKeysIn from './_getAllKeysIn';
 import rest from './rest';
+import toKey from './_toKey';
 
 /**
  * The opposite of `_.pick`; this method creates an object composed of the
@@ -16,8 +16,7 @@ import rest from './rest';
  * @memberOf _
  * @category Object
  * @param {Object} object The source object.
- * @param {...(string|string[])} [props] The property identifiers to omit,
- *  specified individually or in arrays.
+ * @param {...(string|string[])} [props] The property identifiers to omit.
  * @returns {Object} Returns the new object.
  * @example
  *
@@ -30,7 +29,7 @@ var omit = rest(function(object, props) {
   if (object == null) {
     return {};
   }
-  props = arrayMap(baseFlatten(props, 1), baseCastKey);
+  props = arrayMap(baseFlatten(props, 1), toKey);
   return basePick(object, baseDifference(getAllKeysIn(object), props));
 });
 

over.js

@@ -9,7 +9,8 @@ import createOver from './_createOver';
  * @memberOf _
  * @since 4.0.0
  * @category Util
- * @param {...(Function|Function[])} iteratees The iteratees to invoke.
+ * @param {...(Array|Array[]|Function|Function[]|Object|Object[]|string|string[])}
+ *  [iteratees=[_.identity]] The iteratees to invoke.
  * @returns {Function} Returns the new function.
  * @example
  *

overArgs.js

@@ -2,6 +2,8 @@ import apply from './_apply';
 import arrayMap from './_arrayMap';
 import baseFlatten from './_baseFlatten';
 import baseIteratee from './_baseIteratee';
+import baseUnary from './_baseUnary';
+import isArray from './isArray';
 import isFlattenableIteratee from './_isFlattenableIteratee';
 import rest from './rest';
 
@@ -17,8 +19,8 @@ var nativeMin = Math.min;
  * @memberOf _
  * @category Function
  * @param {Function} func The function to wrap.
- * @param {...(Function|Function[])} [transforms] The functions to transform.
- * arguments, specified individually or in arrays.
+ * @param {...(Array|Array[]|Function|Function[]|Object|Object[]|string|string[])}
+ *  [transforms[_.identity]] The functions to transform.
  * @returns {Function} Returns the new function.
  * @example
  *
@@ -41,7 +43,10 @@ var nativeMin = Math.min;
  * // => [100, 10]
  */
 var overArgs = rest(function(func, transforms) {
-  transforms = arrayMap(baseFlatten(transforms, 1, isFlattenableIteratee), baseIteratee);
+  transforms = (transforms.length == 1 && isArray(transforms[0]))
+    ? arrayMap(transforms[0], baseUnary(baseIteratee))
+    : arrayMap(baseFlatten(transforms, 1, isFlattenableIteratee), baseUnary(baseIteratee));
+
   var funcsLength = transforms.length;
   return rest(function(args) {
     var index = -1,

overEvery.js

@@ -9,7 +9,8 @@ import createOver from './_createOver';
  * @memberOf _
  * @since 4.0.0
  * @category Util
- * @param {...(Function|Function[])} predicates The predicates to check.
+ * @param {...(Array|Array[]|Function|Function[]|Object|Object[]|string|string[])}
+ *  [predicates=[_.identity]] The predicates to check.
  * @returns {Function} Returns the new function.
  * @example
  *

overSome.js

@@ -9,7 +9,8 @@ import createOver from './_createOver';
  * @memberOf _
  * @since 4.0.0
  * @category Util
- * @param {...(Function|Function[])} predicates The predicates to check.
+ * @param {...(Array|Array[]|Function|Function[]|Object|Object[]|string|string[])}
+ *  [predicates=[_.identity]] The predicates to check.
  * @returns {Function} Returns the new function.
  * @example
  *

package.json

@@ -1,6 +1,6 @@
 {
   "name": "lodash-es",
-  "version": "4.9.0",
+  "version": "4.11.1",
   "description": "Lodash exported as ES modules.",
   "homepage": "https://lodash.com/custom-builds",
   "license": "MIT",

pick.js

@@ -10,8 +10,7 @@ import rest from './rest';
  * @memberOf _
  * @category Object
  * @param {Object} object The source object.
- * @param {...(string|string[])} [props] The property identifiers to pick,
- *  specified individually or in arrays.
+ * @param {...(string|string[])} [props] The property identifiers to pick.
  * @returns {Object} Returns the new object.
  * @example
  *

pullAt.js

@@ -16,8 +16,7 @@ import rest from './rest';
  * @since 3.0.0
  * @category Array
  * @param {Array} array The array to modify.
- * @param {...(number|number[])} [indexes] The indexes of elements to remove,
- *  specified individually or in arrays.
+ * @param {...(number|number[])} [indexes] The indexes of elements to remove.
  * @returns {Array} Returns the new array of removed elements.
  * @example
  *

rearg.js

@@ -16,8 +16,7 @@ var REARG_FLAG = 256;
  * @since 3.0.0
  * @category Function
  * @param {Function} func The function to rearrange arguments for.
- * @param {...(number|number[])} indexes The arranged argument indexes,
- *  specified individually or in arrays.
+ * @param {...(number|number[])} indexes The arranged argument indexes.
  * @returns {Function} Returns the new function.
  * @example
  *

replace.js

@@ -1,5 +1,11 @@
 import toString from './toString';
 
+/** Used for built-in method references. */
+var stringProto = String.prototype;
+
+/* Built-in method references for those with the same name as other `lodash` methods. */
+var nativeReplace = stringProto.replace;
+
 /**
  * Replaces matches for `pattern` in `string` with `replacement`.
  *
@@ -23,7 +29,7 @@ function replace() {
   var args = arguments,
       string = toString(args[0]);
 
-  return args.length < 3 ? string : string.replace(args[1], args[2]);
+  return args.length < 3 ? string : nativeReplace.call(string, args[1], args[2]);
 }
 
 export default replace;

result.js

@@ -1,4 +1,4 @@
-import baseCastPath from './_baseCastPath';
+import castPath from './_castPath';
 import isFunction from './isFunction';
 import isKey from './_isKey';
 
@@ -32,7 +32,7 @@ import isKey from './_isKey';
  * // => 'default'
  */
 function result(object, path, defaultValue) {
-  path = isKey(path, object) ? [path] : baseCastPath(path);
+  path = isKey(path, object) ? [path] : castPath(path);
 
   var index = -1,
       length = path.length;

sortBy.js

@@ -1,5 +1,7 @@
 import baseFlatten from './_baseFlatten';
 import baseOrderBy from './_baseOrderBy';
+import isArray from './isArray';
+import isFlattenableIteratee from './_isFlattenableIteratee';
 import isIterateeCall from './_isIterateeCall';
 import rest from './rest';
 
@@ -15,8 +17,7 @@ import rest from './rest';
  * @category Collection
  * @param {Array|Object} collection The collection to iterate over.
  * @param {...(Array|Array[]|Function|Function[]|Object|Object[]|string|string[])}
- *  [iteratees=[_.identity]] The iteratees to sort by, specified individually
- *  or in arrays.
+ *  [iteratees=[_.identity]] The iteratees to sort by.
  * @returns {Array} Returns the new sorted array.
  * @example
  *
@@ -46,9 +47,13 @@ var sortBy = rest(function(collection, iteratees) {
   if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) {
     iteratees = [];
   } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {
-    iteratees.length = 1;
+    iteratees = [iteratees[0]];
   }
-  return baseOrderBy(collection, baseFlatten(iteratees, 1), []);
+  iteratees = (iteratees.length == 1 && isArray(iteratees[0]))
+    ? iteratees[0]
+    : baseFlatten(iteratees, 1, isFlattenableIteratee);
+
+  return baseOrderBy(collection, iteratees, []);
 });
 
 export default sortBy;

split.js

@@ -1,18 +1,18 @@
+import castSlice from './_castSlice';
+import isIterateeCall from './_isIterateeCall';
 import isRegExp from './isRegExp';
+import reHasComplexSymbol from './_reHasComplexSymbol';
 import stringToArray from './_stringToArray';
 import toString from './toString';
 
-/** Used to compose unicode character classes. */
-var rsAstralRange = '\\ud800-\\udfff',
-    rsComboMarksRange = '\\u0300-\\u036f\\ufe20-\\ufe23',
-    rsComboSymbolsRange = '\\u20d0-\\u20f0',
-    rsVarRange = '\\ufe0e\\ufe0f';
+/** Used as references for the maximum length and index of an array. */
+var MAX_ARRAY_LENGTH = 4294967295;
 
-/** Used to compose unicode capture groups. */
-var rsZWJ = '\\u200d';
+/** Used for built-in method references. */
+var stringProto = String.prototype;
 
-/** 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 + ']');
+/* Built-in method references for those with the same name as other `lodash` methods. */
+var nativeSplit = stringProto.split;
 
 /**
  * Splits `string` by `separator`.
@@ -34,6 +34,13 @@ var reHasComplexSymbol = RegExp('[' + rsZWJ + rsAstralRange  + rsComboMarksRange
  * // => ['a', 'b']
  */
 function split(string, separator, limit) {
+  if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {
+    separator = limit = undefined;
+  }
+  limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;
+  if (!limit) {
+    return [];
+  }
   string = toString(string);
   if (string && (
         typeof separator == 'string' ||
@@ -41,11 +48,10 @@ function split(string, separator, limit) {
       )) {
     separator += '';
     if (separator == '' && reHasComplexSymbol.test(string)) {
-      var strSymbols = stringToArray(string);
-      return limit === undefined ? strSymbols : strSymbols.slice(0, limit < 0 ? 0 : limit);
+      return castSlice(stringToArray(string), 0, limit);
     }
   }
-  return string.split(separator, limit);
+  return nativeSplit.call(string, separator, limit);
 }
 
 export default split;

spread.js

@@ -1,5 +1,6 @@
 import apply from './_apply';
 import arrayPush from './_arrayPush';
+import castSlice from './_castSlice';
 import rest from './rest';
 import toInteger from './toInteger';
 
@@ -50,7 +51,7 @@ function spread(func, start) {
   start = start === undefined ? 0 : nativeMax(toInteger(start), 0);
   return rest(function(args) {
     var array = args[start],
-        otherArgs = args.slice(0, start);
+        otherArgs = castSlice(args, 0, start);
 
     if (array) {
       arrayPush(otherArgs, array);

toPath.js

@@ -1,9 +1,9 @@
 import arrayMap from './_arrayMap';
-import baseCastKey from './_baseCastKey';
 import copyArray from './_copyArray';
 import isArray from './isArray';
 import isSymbol from './isSymbol';
 import stringToPath from './_stringToPath';
+import toKey from './_toKey';
 
 /**
  * Converts `value` to a property path array.
@@ -33,7 +33,7 @@ import stringToPath from './_stringToPath';
  */
 function toPath(value) {
   if (isArray(value)) {
-    return arrayMap(value, baseCastKey);
+    return arrayMap(value, toKey);
   }
   return isSymbol(value) ? [value] : copyArray(stringToPath(value));
 }

toString.js

@@ -9,8 +9,8 @@ var symbolProto = Symbol ? Symbol.prototype : undefined,
     symbolToString = symbolProto ? symbolProto.toString : undefined;
 
 /**
- * Converts `value` to a string if it's not one. An empty string is returned
- * for `null` and `undefined` values. The sign of `-0` is preserved.
+ * Converts `value` to a string. An empty string is returned for `null`
+ * and `undefined` values. The sign of `-0` is preserved.
  *
  * @static
  * @memberOf _

trim.js

@@ -1,3 +1,4 @@
+import castSlice from './_castSlice';
 import charsEndIndex from './_charsEndIndex';
 import charsStartIndex from './_charsStartIndex';
 import stringToArray from './_stringToArray';
@@ -36,16 +37,15 @@ function trim(string, chars, guard) {
   if (guard || chars === undefined) {
     return string.replace(reTrim, '');
   }
-  chars = (chars + '');
-  if (!chars) {
+  if (!(chars += '')) {
     return string;
   }
   var strSymbols = stringToArray(string),
-      chrSymbols = stringToArray(chars);
+      chrSymbols = stringToArray(chars),
+      start = charsStartIndex(strSymbols, chrSymbols),
+      end = charsEndIndex(strSymbols, chrSymbols) + 1;
 
-  return strSymbols
-    .slice(charsStartIndex(strSymbols, chrSymbols), charsEndIndex(strSymbols, chrSymbols) + 1)
-    .join('');
+  return castSlice(strSymbols, start, end).join('');
 }
 
 export default trim;

trimEnd.js

@@ -1,3 +1,4 @@
+import castSlice from './_castSlice';
 import charsEndIndex from './_charsEndIndex';
 import stringToArray from './_stringToArray';
 import toString from './toString';
@@ -32,14 +33,13 @@ function trimEnd(string, chars, guard) {
   if (guard || chars === undefined) {
     return string.replace(reTrimEnd, '');
   }
-  chars = (chars + '');
-  if (!chars) {
+  if (!(chars += '')) {
     return string;
   }
-  var strSymbols = stringToArray(string);
-  return strSymbols
-    .slice(0, charsEndIndex(strSymbols, stringToArray(chars)) + 1)
-    .join('');
+  var strSymbols = stringToArray(string),
+      end = charsEndIndex(strSymbols, stringToArray(chars)) + 1;
+
+  return castSlice(strSymbols, 0, end).join('');
 }
 
 export default trimEnd;

trimStart.js

@@ -1,3 +1,4 @@
+import castSlice from './_castSlice';
 import charsStartIndex from './_charsStartIndex';
 import stringToArray from './_stringToArray';
 import toString from './toString';
@@ -32,14 +33,13 @@ function trimStart(string, chars, guard) {
   if (guard || chars === undefined) {
     return string.replace(reTrimStart, '');
   }
-  chars = (chars + '');
-  if (!chars) {
+  if (!(chars += '')) {
     return string;
   }
-  var strSymbols = stringToArray(string);
-  return strSymbols
-    .slice(charsStartIndex(strSymbols, stringToArray(chars)))
-    .join('');
+  var strSymbols = stringToArray(string),
+      start = charsStartIndex(strSymbols, stringToArray(chars));
+
+  return castSlice(strSymbols, start).join('');
 }
 
 export default trimStart;

truncate.js

@@ -1,5 +1,7 @@
+import castSlice from './_castSlice';
 import isObject from './isObject';
 import isRegExp from './isRegExp';
+import reHasComplexSymbol from './_reHasComplexSymbol';
 import stringSize from './_stringSize';
 import stringToArray from './_stringToArray';
 import toInteger from './toInteger';
@@ -12,18 +14,6 @@ var DEFAULT_TRUNC_LENGTH = 30,
 /** Used to match `RegExp` flags from their coerced string values. */
 var reFlags = /\w*$/;
 
-/** Used to compose unicode character classes. */
-var rsAstralRange = '\\ud800-\\udfff',
-    rsComboMarksRange = '\\u0300-\\u036f\\ufe20-\\ufe23',
-    rsComboSymbolsRange = '\\u20d0-\\u20f0',
-    rsVarRange = '\\ufe0e\\ufe0f';
-
-/** Used to compose unicode capture groups. */
-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 + ']');
-
 /**
  * Truncates `string` if it's longer than the given maximum string length.
  * The last characters of the truncated string are replaced with the omission
@@ -85,7 +75,7 @@ function truncate(string, options) {
     return omission;
   }
   var result = strSymbols
-    ? strSymbols.slice(0, end).join('')
+    ? castSlice(strSymbols, 0, end).join('')
     : string.slice(0, end);
 
   if (separator === undefined) {

update.js

@@ -1,5 +1,5 @@
-import baseCastFunction from './_baseCastFunction';
 import baseUpdate from './_baseUpdate';
+import castFunction from './_castFunction';
 
 /**
  * This method is like `_.set` except that accepts `updater` to produce the
@@ -29,7 +29,7 @@ import baseUpdate from './_baseUpdate';
  * // => 0
  */
 function update(object, path, updater) {
-  return object == null ? object : baseUpdate(object, path, baseCastFunction(updater));
+  return object == null ? object : baseUpdate(object, path, castFunction(updater));
 }
 
 export default update;

updateWith.js

@@ -1,5 +1,5 @@
-import baseCastFunction from './_baseCastFunction';
 import baseUpdate from './_baseUpdate';
+import castFunction from './_castFunction';
 
 /**
  * This method is like `_.update` except that it accepts `customizer` which is
@@ -27,7 +27,7 @@ import baseUpdate from './_baseUpdate';
  */
 function updateWith(object, path, updater, customizer) {
   customizer = typeof customizer == 'function' ? customizer : undefined;
-  return object == null ? object : baseUpdate(object, path, baseCastFunction(updater), customizer);
+  return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);
 }
 
 export default updateWith;

words.js

@@ -1,5 +1,8 @@
 import toString from './toString';
 
+/** Used to match non-compound words composed of alphanumeric characters. */
+var reBasicWord = /[a-zA-Z0-9]+/g;
+
 /** Used to compose unicode character classes. */
 var rsAstralRange = '\\ud800-\\udfff',
     rsComboMarksRange = '\\u0300-\\u036f\\ufe20-\\ufe23',
@@ -15,7 +18,8 @@ var rsAstralRange = '\\ud800-\\udfff',
     rsBreakRange = rsMathOpRange + rsNonCharRange + rsQuoteRange + rsSpaceRange;
 
 /** Used to compose unicode capture groups. */
-var rsBreak = '[' + rsBreakRange + ']',
+var rsApos = "['\u2019]",
+    rsBreak = '[' + rsBreakRange + ']',
     rsCombo = '[' + rsComboMarksRange + rsComboSymbolsRange + ']',
     rsDigits = '\\d+',
     rsDingbat = '[' + rsDingbatRange + ']',
@@ -32,21 +36,20 @@ var rsBreak = '[' + rsBreakRange + ']',
 /** 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))?',
     reOptMod = rsModifier + '?',
     rsOptVar = '[' + rsVarRange + ']?',
     rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',
     rsSeq = rsOptVar + reOptMod + rsOptJoin,
     rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq;
 
-/** Used to match non-compound words composed of alphanumeric characters. */
-var reBasicWord = /[a-zA-Z0-9]+/g;
-
 /** Used to match complex or compound words. */
 var reComplexWord = RegExp([
-  rsUpper + '?' + rsLower + '+(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',
-  rsUpperMisc + '+(?=' + [rsBreak, rsUpper + rsLowerMisc, '$'].join('|') + ')',
-  rsUpper + '?' + rsLowerMisc + '+',
-  rsUpper + '+',
+  rsUpper + '?' + rsLower + '+' + rsOptLowerContr + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',
+  rsUpperMisc + '+' + rsOptUpperContr + '(?=' + [rsBreak, rsUpper + rsLowerMisc, '$'].join('|') + ')',
+  rsUpper + '?' + rsLowerMisc + '+' + rsOptLowerContr,
+  rsUpper + '+' + rsOptUpperContr,
   rsDigits,
   rsEmoji
 ].join('|'), 'g');

wrapperAt.js

@@ -13,8 +13,7 @@ import thru from './thru';
  * @memberOf _
  * @since 1.0.0
  * @category Seq
- * @param {...(string|string[])} [paths] The property paths of elements to pick,
- *  specified individually or in arrays.
+ * @param {...(string|string[])} [paths] The property paths of elements to pick.
  * @returns {Object} Returns the new `lodash` wrapper instance.
  * @example
  *

wrapperLodash.js

@@ -91,7 +91,7 @@ var hasOwnProperty = objectProto.hasOwnProperty;
  * `isSet`, `isString`, `isUndefined`, `isTypedArray`, `isWeakMap`, `isWeakSet`,
  * `join`, `kebabCase`, `last`, `lastIndexOf`, `lowerCase`, `lowerFirst`,
  * `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, `min`, `minBy`, `multiply`,
- * `noConflict`, `noop`, `now`, `pad`, `padEnd`, `padStart`, `parseInt`,
+ * `noConflict`, `noop`, `now`, `nth`, `pad`, `padEnd`, `padStart`, `parseInt`,
  * `pop`, `random`, `reduce`, `reduceRight`, `repeat`, `result`, `round`,
  * `runInContext`, `sample`, `shift`, `size`, `snakeCase`, `some`, `sortedIndex`,
  * `sortedIndexBy`, `sortedLastIndex`, `sortedLastIndexBy`, `startCase`,