Bump to v0.8.1.

Former-commit-id: 1b63f03d4a7ca0cdc66e44cd987fddecaf88f9ce
Cleanup lodash.js.
2026-01-30 06:57:49 +00:00 · 2012-10-04 01:40:17 -07:00 · 2012-10-04 00:28:45 -07:00 · 2012-10-04 00:02:43 -07:00 · 2012-10-03 23:21:51 -07:00 · 2012-10-03 20:12:03 -07:00
18 changed files with 631 additions and 383 deletions
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Lo-Dash <sup>v0.8.0</sup>
+# Lo-Dash <sup>v0.8.1</sup>
 [![build status](https://secure.travis-ci.org/bestiejs/lodash.png)](http://travis-ci.org/bestiejs/lodash)

 A drop-in replacement<sup>[*](https://github.com/bestiejs/lodash/wiki/Drop-in-Disclaimer)</sup> for Underscore.js, from the devs behind [jsPerf.com](http://jsperf.com), delivering [performance](http://lodash.com/benchmarks), [bug fixes](https://github.com/bestiejs/lodash#resolved-underscorejs-issues), and [additional features](http://lodash.com/#features).
@@ -7,10 +7,10 @@ Lo-Dash’s performance is gained by avoiding slower native methods, instead opt

 ## Download

- * [Development build](https://raw.github.com/bestiejs/lodash/v0.8.0/lodash.js)
- * [Production build](https://raw.github.com/bestiejs/lodash/v0.8.0/lodash.min.js)
- * [Underscore build](https://raw.github.com/bestiejs/lodash/v0.8.0/lodash.underscore.min.js) tailored for projects already using Underscore
- * CDN copies of ≤ [v0.8.0](http://cdnjs.cloudflare.com/ajax/libs/lodash.js/0.8.0/lodash.min.js) are available on [cdnjs](http://cdnjs.com/) thanks to [CloudFlare](http://www.cloudflare.com/)
+ * [Development build](https://raw.github.com/bestiejs/lodash/v0.8.1/lodash.js)
+ * [Production build](https://raw.github.com/bestiejs/lodash/v0.8.1/lodash.min.js)
+ * [Underscore build](https://raw.github.com/bestiejs/lodash/v0.8.1/lodash.underscore.min.js) tailored for projects already using Underscore
+ * CDN copies of ≤ [v0.8.1](http://cdnjs.cloudflare.com/ajax/libs/lodash.js/0.8.1/lodash.min.js) are available on [cdnjs](http://cdnjs.com/) thanks to [CloudFlare](http://www.cloudflare.com/)
 * For optimal file size, [create a custom build](https://github.com/bestiejs/lodash#custom-builds) with only the features you need

 ## Dive in
@@ -197,21 +197,22 @@ require({

 ## Resolved Underscore.js issues

- * Add AMD loader support [[#431](https://github.com/documentcloud/underscore/pull/431), [test](https://github.com/bestiejs/lodash/blob/v0.8.0/test/test.js#L118-140)]
- * Allow iteration of objects with a `length` property [[#799](https://github.com/documentcloud/underscore/pull/799), [test](https://github.com/bestiejs/lodash/blob/v0.8.0/test/test.js#L510-516)]
- * Ensure *“Collections”* methods allow string `collection` arguments [[#247](https://github.com/documentcloud/underscore/issues/247), [#276](https://github.com/documentcloud/underscore/issues/276), [#561](https://github.com/documentcloud/underscore/pull/561), [test](https://github.com/bestiejs/lodash/blob/v0.8.0/test/test.js#L470-487)]
- * Fix cross-browser object iteration bugs [[#60](https://github.com/documentcloud/underscore/issues/60), [#376](https://github.com/documentcloud/underscore/issues/376), [test](https://github.com/bestiejs/lodash/blob/v0.8.0/test/test.js#L526-546)]
- * Methods should work on pages with incorrectly shimmed native methods [[#7](https://github.com/documentcloud/underscore/issues/7), [#742](https://github.com/documentcloud/underscore/issues/742), [test](https://github.com/bestiejs/lodash/blob/v0.8.0/test/test.js#L142-148)]
- * `_.clone` should allow `deep` cloning [[#595](https://github.com/documentcloud/underscore/pull/595), [test](https://github.com/bestiejs/lodash/blob/v0.8.0/test/test.js#L215-224)]
- * `_.contains` should work with strings [[#667](https://github.com/documentcloud/underscore/pull/667), [test](https://github.com/bestiejs/lodash/blob/v0.8.0/test/test.js#L267-276)]
- * `_.extend` should recursively extend objects [[#379](https://github.com/documentcloud/underscore/pull/379), [#718](https://github.com/documentcloud/underscore/issues/718), [test](https://github.com/bestiejs/lodash/blob/v0.8.0/test/test.js#L946-968)]
- * `_.forEach` should be chainable [[#142](https://github.com/documentcloud/underscore/issues/142), [test](https://github.com/bestiejs/lodash/blob/v0.8.0/test/test.js#L465-468)]
- * `_.forEach` should allow exiting iteration early [[#211](https://github.com/documentcloud/underscore/issues/211), [test](https://github.com/bestiejs/lodash/blob/v0.8.0/test/test.js#L556-570)]
- * `_.isEmpty` should support jQuery/MooTools DOM query collections [[#690](https://github.com/documentcloud/underscore/pull/690), [test](https://github.com/bestiejs/lodash/blob/v0.8.0/test/test.js#L703-708)]
- * `_.isObject` should avoid V8 bug [#2291](http://code.google.com/p/v8/issues/detail?id=2291) [[#605](https://github.com/documentcloud/underscore/issues/605), [test](https://github.com/bestiejs/lodash/blob/v0.8.0/test/test.js#L763-775)]
- * `_.keys` should work with `arguments` objects cross-browser [[#396](https://github.com/documentcloud/underscore/issues/396), [test](https://github.com/bestiejs/lodash/blob/v0.8.0/test/test.js#L856-858)]
- * `_.range` should coerce arguments to numbers [[#634](https://github.com/documentcloud/underscore/issues/634), [#683](https://github.com/documentcloud/underscore/issues/683), [test](https://github.com/bestiejs/lodash/blob/v0.8.0/test/test.js#L1222-1225)]
- * `_.throttle` should work when called in a loop [[#502](https://github.com/documentcloud/underscore/issues/502), [test](https://github.com/bestiejs/lodash/blob/v0.8.0/test/test.js#L1525-1535)]
+ * Add AMD loader support [[#431](https://github.com/documentcloud/underscore/pull/431), [test](https://github.com/bestiejs/lodash/blob/v0.8.1/test/test.js#L118-140)]
+ * Allow iteration of objects with a `length` property [[#799](https://github.com/documentcloud/underscore/pull/799), [test](https://github.com/bestiejs/lodash/blob/v0.8.1/test/test.js#L510-516)]
+ * Ensure *“Arrays”*, *“Collections”*, and *“Objects”* methods don’t error when passed falsey arguments [[#650](https://github.com/documentcloud/underscore/pull/650), [#803](https://github.com/documentcloud/underscore/issues/803), [test](https://github.com/bestiejs/lodash/blob/v0.8.1/test/test.js#L1729-1764)]
+ * Ensure *“Collections”* methods allow string `collection` arguments [[#247](https://github.com/documentcloud/underscore/issues/247), [#276](https://github.com/documentcloud/underscore/issues/276), [#561](https://github.com/documentcloud/underscore/pull/561), [test](https://github.com/bestiejs/lodash/blob/v0.8.1/test/test.js#L470-487)]
+ * Fix cross-browser object iteration bugs [[#60](https://github.com/documentcloud/underscore/issues/60), [#376](https://github.com/documentcloud/underscore/issues/376), [test](https://github.com/bestiejs/lodash/blob/v0.8.1/test/test.js#L526-546)]
+ * Methods should work on pages with incorrectly shimmed native methods [[#7](https://github.com/documentcloud/underscore/issues/7), [#742](https://github.com/documentcloud/underscore/issues/742), [test](https://github.com/bestiejs/lodash/blob/v0.8.1/test/test.js#L142-148)]
+ * `_.clone` should allow `deep` cloning [[#595](https://github.com/documentcloud/underscore/pull/595), [test](https://github.com/bestiejs/lodash/blob/v0.8.1/test/test.js#L215-224)]
+ * `_.contains` should work with strings [[#667](https://github.com/documentcloud/underscore/pull/667), [test](https://github.com/bestiejs/lodash/blob/v0.8.1/test/test.js#L267-276)]
+ * `_.extend` should recursively extend objects [[#379](https://github.com/documentcloud/underscore/pull/379), [#718](https://github.com/documentcloud/underscore/issues/718), [test](https://github.com/bestiejs/lodash/blob/v0.8.1/test/test.js#L955-977)]
+ * `_.forEach` should be chainable [[#142](https://github.com/documentcloud/underscore/issues/142), [test](https://github.com/bestiejs/lodash/blob/v0.8.1/test/test.js#L465-468)]
+ * `_.forEach` should allow exiting iteration early [[#211](https://github.com/documentcloud/underscore/issues/211), [test](https://github.com/bestiejs/lodash/blob/v0.8.1/test/test.js#L553-570)]
+ * `_.isEmpty` should support jQuery/MooTools DOM query collections [[#690](https://github.com/documentcloud/underscore/pull/690), [test](https://github.com/bestiejs/lodash/blob/v0.8.1/test/test.js#L712-717)]
+ * `_.isObject` should avoid V8 bug [#2291](http://code.google.com/p/v8/issues/detail?id=2291) [[#605](https://github.com/documentcloud/underscore/issues/605), [test](https://github.com/bestiejs/lodash/blob/v0.8.1/test/test.js#L772-784)]
+ * `_.keys` should work with `arguments` objects cross-browser [[#396](https://github.com/documentcloud/underscore/issues/396), [test](https://github.com/bestiejs/lodash/blob/v0.8.1/test/test.js#L865-867)]
+ * `_.range` should coerce arguments to numbers [[#634](https://github.com/documentcloud/underscore/issues/634), [#683](https://github.com/documentcloud/underscore/issues/683), [test](https://github.com/bestiejs/lodash/blob/v0.8.1/test/test.js#L1231-1234)]
+ * `_.throttle` should work when called in a loop [[#502](https://github.com/documentcloud/underscore/issues/502), [test](https://github.com/bestiejs/lodash/blob/v0.8.1/test/test.js#L1549-1559)]

 ## Optimized methods <sup>(50+)</sup>

@@ -274,25 +275,10 @@ require({

 ## Release Notes

-### <sup>v0.8.0</sup>
+### <sup>v0.8.1</sup>

-#### Compatibility Warnings ####
-
- * Made `_.random` return `0` or `1` when no arguments are passed
- * Moved late bind functionality from `_.bind` to [_.lateBind](http://lodash.com/docs#lateBind)
- * Removed first argument falsey checks from methods
- * Removed support for custom `clone`, `isEqual`, `toArray` methods from<br>
-   `_.clone`, `_.isEqual`, and `_.toArray`
-
-#### Changes ####
-
- * Added `-d`/`--debug`, `-m/--minify`, `minus`, `plus`, `settings`, and `template` build options
- * Added `_.isPlainObject` and `_.lateBind`
- * Allowed `_.sortedIndex` to accept a property name as the `callback` argument
- * Ensured methods accept a `thisArg` of `null`
- * Fixed the `iife` build option to accept more values
- * Made `_.times` return an array of `callback` results
- * Simplified `_.max`, `_.min`, and `_.reduceRight`
+ * Made `underscore` build include deep clone when `clone` is requested via `include` or `plus`
+ * Reverted removal of first argument falsey checks from methods

 The full changelog is available [here](https://github.com/bestiejs/lodash/wiki/Changelog).

--- a/build.js
+++ b/build.js
@@ -542,7 +542,7 @@
  function matchFunction(source, funcName) {
    var result = source.match(RegExp(
      // match multi-line comment block (could be on a single line)
-      '\\n +/\\*[^*]*\\*+(?:[^/][^*]*\\*+)*/\\n' +
+      '(?:\\n +/\\*[^*]*\\*+(?:[^/][^*]*\\*+)*/\\n)?' +
      // begin non-capturing group
      '(?:' +
      // match a function declaration
@@ -684,7 +684,7 @@
      // remove `isKeysFast` from `inLoop.object` of `mapIteratorOptions`, `invoke`, `pairs`, `pluck`, and `sortBy`
      .replace(/'\s*\+\s*\(isKeysFast[^)]+?\)\s*\+\s*'/g, '.push')
      // remove data object property assignment in `createIterator`
-      .replace(/\s*.+?\.isKeysFast *=.+/, '');
+      .replace(/ *'isKeysFast':.+\n/, '');
  }

  /**
@@ -733,16 +733,12 @@
      source = source.replace(RegExp('(var ' + varName + ' *=)[\\s\\S]+?(true;\\n)'), '$1$2');
    }
    source = source.replace(RegExp(
-      // begin non-capturing group
-      '(?:' +
      // match multi-line comment block
      '(?:\\n +/\\*[^*]*\\*+(?:[^/][^*]*\\*+)*/)?\\n' +
      // match a variable declaration that's not part of a declaration list
      '( +)var ' + varName + ' *= *(?:.+?(?:;|&&\\n[^;]+;)|(?:\\w+\\(|{)[\\s\\S]+?\\n\\1.+?;)\\n|' +
      // match a variable in a declaration list
-      '\\n +' + varName + ' *=.+?,' +
-      // end non-capturing group
-      ')'
+      '\\n +' + varName + ' *=.+?,'
    ), '');

    // remove a varaible at the start of a variable declaration list
@@ -799,10 +795,8 @@
      .replace(/(?: *\/\/.*\n)*(\s*)' *<% *if *\(useStrict\).+/, value ? "$1'\\'use strict\\';\\n' +" : '')
      // remove `useStrict` from iterator options
      .replace(/ *'useStrict': *false,\n/g, '')
-      // remove `useStrict` variable assignment in `createIterator`
-      .replace(/,\s*useStrict *=[^;]+/, '')
      // remove `useStrict` data object property assignment in `createIterator`
-      .replace(/\s*.+?\.useStrict *=.+/, '');
+      .replace(/ *'useStrict':.+\n/, '');
  }

  /*--------------------------------------------------------------------------*/
@@ -954,6 +948,9 @@
    // flag used to specify if the build should include the "use strict" directive
    var useStrict = isStrict || !(isLegacy || isMobile);

+    // flag used to specify replacing Lo-Dash's `_.clone` with Underscore's
+    var useUnderscoreClone = isUnderscore;
+
    /*------------------------------------------------------------------------*/

    // names of methods to include in the build
@@ -978,6 +975,11 @@
          (result = getDependencies(optionToMethodsArray(source, value)));
      });

+      // use Lo-Dash's clone if explicitly requested
+      if (result && result.indexOf('clone') > -1) {
+        useUnderscoreClone = false;
+      }
+
      // add method names required by Backbone and Underscore builds
      if (isBackbone && !result) {
        result = getDependencies(backboneDependencies);
@@ -1042,7 +1044,6 @@
      }
      else if (isUnderscore) {
        // update dependencies
-        dependencyMap.clone = ['extend', 'isArray'];
        dependencyMap.isEqual = ['isArray', 'isFunction'];
        dependencyMap.isEmpty = ['isArray'];

@@ -1050,17 +1051,79 @@
        source = removeVar(source, 'arrayLikeClasses');
        source = removeVar(source, 'cloneableClasses');

-        // remove large array optimizations from `cachedContains`
-        source = source.replace(/( +)function cachedContains[\s\S]+?\n\1}/, [
-          '  function cachedContains(array, fromIndex) {',
-          '    return function(value) {',
-          '      return indexOf(array, value, fromIndex || 0) > -1;',
-          '    };',
+        // remove large array optimizations
+        source = removeFunction(source, 'cachedContains');
+        source = removeVar(source, 'largeArraySize');
+
+        // replace `_.clone`
+        if (useUnderscoreClone) {
+          dependencyMap.clone = ['extend', 'isArray'];
+          source = source.replace(/^( +)function clone[\s\S]+?\n\1}/m, [
+            '  function clone(value) {',
+            '    return value && objectTypes[typeof value]',
+            '      ? (isArray(value) ? slice.call(value) : extend({}, value))',
+            '      : value',
+            '  }'
+          ].join('\n'));
+        }
+
+        // replace `_.difference`
+        source = source.replace(/^( +)function difference[\s\S]+?\n\1}/m, [
+          '  function difference(array) {',
+          '    var index = -1,',
+          '        length = array.length,',
+          '        flattened = concat.apply(ArrayProto, arguments),',
+          '        result = [];',
+          '',
+          '    while (++index < length) {',
+          '      var value = array[index]',
+          '      if (indexOf(flattened, value, length) < 0) {',
+          '        result.push(value);',
+          '      }',
+          '    }',
+          '    return result',
          '  }'
        ].join('\n'));

-        // reduce the number of arguments passed to `cachedContains` from 3 to 2
-        source = source.replace(/(cachedContains\(\w+, *\w+), *\w+/g, '$1');
+        // replace `_.intersection`
+        source = source.replace(/^( +)function intersection[\s\S]+?\n\1}/m, [
+          '  function intersection(array) {',
+          '    var argsLength = arguments.length,',
+          '        index = -1,',
+          '        length = array.length,',
+          '        result = [];',
+          '',
+          '    array: while (++index < length) {',
+          '      var value = array[index]',
+          '      if (indexOf(result, value) < 0) {',
+          '        for (var argsIndex = 1; argsIndex < argsLength; argsIndex++) {',
+          '          if (indexOf(arguments[argsIndex], value) < 0) {',
+          '            continue array;',
+          '          }',
+          '        }',
+          '        result.push(value);',
+          '      }',
+          '    }',
+          '    return result',
+          '  }'
+        ].join('\n'));
+
+        // replace `_.without`
+        source = source.replace(/^( +)function without[\s\S]+?\n\1}/m, [
+          '  function without(array) {',
+          '    var index = -1,',
+          '        length = array.length,',
+          '        result = [];',
+          '',
+          '    while (++index < length) {',
+          '      var value = array[index]',
+          '      if (indexOf(arguments, value, 1) < 0) {',
+          '        result.push(value);',
+          '      }',
+          '    }',
+          '    return result',
+          '  }'
+        ].join('\n'));

        // replace `arrayLikeClasses` in `_.isEmpty`
        source = source.replace(/'if *\(arrayLikeClasses[\s\S]+?' \|\|\\n/, "'if (isArray(value) || className == stringClass ||");
@@ -1069,19 +1132,10 @@
        source = source.replace(/(?: *\/\/.*\n)*( +)var isArr *= *arrayLikeClasses[^}]+}/, '$1var isArr = isArray(a);');

        // remove "exit early" feature from `_.each`
-        source = source.replace(/( )+var baseIteratorOptions *=[\s\S]+?\n\1.+?;/, function(match) {
+        source = source.replace(/( +)var baseIteratorOptions *=[\s\S]+?\n\1.+?;/, function(match) {
          return match.replace(/if *\(callback[^']+/, 'callback(value, index, collection)');
        });

-        // remove `deep` clone functionality
-        source = source.replace(/( +)function clone[\s\S]+?\n\1}/, [
-          '  function clone(value) {',
-          '    return value && objectTypes[typeof value]',
-          '      ? (isArray(value) ? slice.call(value) : extend({}, value))',
-          '      : value',
-          '  }'
-        ].join('\n'));
-
        // remove unused features from `createBound`
        if (buildMethods.indexOf('partial') == -1) {
          source = source.replace(matchFunction(source, 'createBound'), function(match) {
@@ -1180,6 +1234,8 @@
        source = removeFromCreateIterator(source, 'nativeKeys');
      }

+      /*----------------------------------------------------------------------*/
+
      if (isMobile) {
        // inline all functions defined with `createIterator`
        _.functions(lodash).forEach(function(methodName) {
--- a/build/post-compile.js
+++ b/build/post-compile.js
@@ -10,7 +10,7 @@
    'lodash':
      '/*!\n' +
      ' Lo-Dash @VERSION lodash.com/license\n' +
-      ' Underscore.js 1.4.0 underscorejs.org/LICENSE\n' +
+      ' Underscore.js 1.4.1 underscorejs.org/LICENSE\n' +
      '*/',
    'underscore':
      '/*! Underscore.js @VERSION underscorejs.org/LICENSE */'
--- a/build/pre-compile.js
+++ b/build/pre-compile.js
@@ -15,7 +15,6 @@
    'createCallback',
    'ctor',
    'hasOwnProperty',
-    'identity',
    'index',
    'iteratee',
    'length',
--- a/doc/README.md
+++ b/doc/README.md
@@ -1,4 +1,4 @@
-# Lo-Dash <sup>v0.8.0</sup>
+# Lo-Dash <sup>v0.8.1</sup>

 <!-- div -->

@@ -174,7 +174,7 @@ The `lodash` function.
 <!-- div -->

 ### <a id="_version"></a>`_.VERSION`
-<a href="#_version">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3993 "View in source") [&#x24C9;][1]
+<a href="#_version">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L4002 "View in source") [&#x24C9;][1]

 *(String)*: The semantic version number.

@@ -186,7 +186,7 @@ The `lodash` function.
 <!-- div -->

 ### <a id="_aftern-func"></a>`_.after(n, func)`
-<a href="#_aftern-func">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3100 "View in source") [&#x24C9;][1]
+<a href="#_aftern-func">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3108 "View in source") [&#x24C9;][1]

 Creates a function that is restricted to executing only after it is called `n` times.

@@ -214,7 +214,7 @@ _.forEach(notes, function(note) {
 <!-- div -->

 ### <a id="_bindfunc--thisarg-arg1-arg2-"></a>`_.bind(func [, thisArg, arg1, arg2, ...])`
-<a href="#_bindfunc--thisarg-arg1-arg2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3133 "View in source") [&#x24C9;][1]
+<a href="#_bindfunc--thisarg-arg1-arg2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3141 "View in source") [&#x24C9;][1]

 Creates a function that, when called, invokes `func` with the `this` binding of `thisArg` and prepends any additional `bind` arguments to those passed to the bound function.

@@ -245,7 +245,7 @@ func();
 <!-- div -->

 ### <a id="_bindallobject--methodname1-methodname2-"></a>`_.bindAll(object [, methodName1, methodName2, ...])`
-<a href="#_bindallobject--methodname1-methodname2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3163 "View in source") [&#x24C9;][1]
+<a href="#_bindallobject--methodname1-methodname2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3171 "View in source") [&#x24C9;][1]

 Binds methods on `object` to `object`, overwriting the existing method. If no method names are provided, all the function properties of `object` will be bound.

@@ -276,7 +276,7 @@ jQuery('#lodash_button').on('click', buttonView.onClick);
 <!-- div -->

 ### <a id="_chainvalue"></a>`_.chain(value)`
-<a href="#_chainvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3918 "View in source") [&#x24C9;][1]
+<a href="#_chainvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3927 "View in source") [&#x24C9;][1]

 Wraps the value in a `lodash` wrapper object.

@@ -310,7 +310,7 @@ var youngest = _.chain(stooges)
 <!-- div -->

 ### <a id="_clonevalue-deep"></a>`_.clone(value, deep)`
-<a href="#_clonevalue-deep">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1045 "View in source") [&#x24C9;][1]
+<a href="#_clonevalue-deep">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1039 "View in source") [&#x24C9;][1]

 Creates a clone of `value`. If `deep` is `true`, all nested objects will also be cloned otherwise they will be assigned by reference. Functions, DOM nodes, `arguments` objects, and objects created by constructors other than `Object` are **not** cloned.

@@ -349,7 +349,7 @@ shallow[0] === stooges[0];
 <!-- div -->

 ### <a id="_compactarray"></a>`_.compact(array)`
-<a href="#_compactarray">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2412 "View in source") [&#x24C9;][1]
+<a href="#_compactarray">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2413 "View in source") [&#x24C9;][1]

 Creates an array with all falsey values of `array` removed. The values `false`, `null`, `0`, `""`, `undefined` and `NaN` are all falsey.

@@ -373,7 +373,7 @@ _.compact([0, 1, false, 2, '', 3]);
 <!-- div -->

 ### <a id="_composefunc1-func2-"></a>`_.compose([func1, func2, ...])`
-<a href="#_composefunc1-func2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3200 "View in source") [&#x24C9;][1]
+<a href="#_composefunc1-func2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3208 "View in source") [&#x24C9;][1]

 Creates a function that is the composition of the passed functions, where each function consumes the return value of the function that follows. In math terms, composing the functions `f()`, `g()`, and `h()` produces `f(g(h()))`.

@@ -400,7 +400,7 @@ welcome('moe');
 <!-- div -->

 ### <a id="_containscollection-target"></a>`_.contains(collection, target)`
-<a href="#_containscollection-target">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1894 "View in source") [&#x24C9;][1]
+<a href="#_containscollection-target">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1892 "View in source") [&#x24C9;][1]

 Checks if a given `target` element is present in a `collection` using strict equality for comparisons, i.e. `===`.

@@ -434,7 +434,7 @@ _.contains('curly', 'ur');
 <!-- div -->

 ### <a id="_countbycollection-callbackproperty--thisarg"></a>`_.countBy(collection, callback|property [, thisArg])`
-<a href="#_countbycollection-callbackproperty--thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1930 "View in source") [&#x24C9;][1]
+<a href="#_countbycollection-callbackproperty--thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1928 "View in source") [&#x24C9;][1]

 Creates an object composed of keys returned from running each element of `collection` through a `callback`. The corresponding value of each key is the number of times the key was returned by `callback`. The `callback` is bound to `thisArg` and invoked with three arguments; *(value, index|key, collection)*. The `callback` argument may also be the name of a property to count by *(e.g. 'length')*.

@@ -466,7 +466,7 @@ _.countBy(['one', 'two', 'three'], 'length');
 <!-- div -->

 ### <a id="_debouncefunc-wait-immediate"></a>`_.debounce(func, wait, immediate)`
-<a href="#_debouncefunc-wait-immediate">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3233 "View in source") [&#x24C9;][1]
+<a href="#_debouncefunc-wait-immediate">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3241 "View in source") [&#x24C9;][1]

 Creates a function that will delay the execution of `func` until after `wait` milliseconds have elapsed since the last time it was invoked. Pass `true` for `immediate` to cause debounce to invoke `func` on the leading, instead of the trailing, edge of the `wait` timeout. Subsequent calls to the debounced function will return the result of the last `func` call.

@@ -492,7 +492,7 @@ jQuery(window).on('resize', lazyLayout);
 <!-- div -->

 ### <a id="_defaultsobject--default1-default2-"></a>`_.defaults(object [, default1, default2, ...])`
-<a href="#_defaultsobject--default1-default2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1138 "View in source") [&#x24C9;][1]
+<a href="#_defaultsobject--default1-default2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1132 "View in source") [&#x24C9;][1]

 Assigns enumerable properties of the default object(s) to the `destination` object for all `destination` properties that resolve to `null`/`undefined`. Once a property is set, additional defaults of the same property will be ignored.

@@ -518,7 +518,7 @@ _.defaults(iceCream, { 'flavor': 'vanilla', 'sprinkles': 'rainbow' });
 <!-- div -->

 ### <a id="_deferfunc--arg1-arg2-"></a>`_.defer(func [, arg1, arg2, ...])`
-<a href="#_deferfunc--arg1-arg2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3298 "View in source") [&#x24C9;][1]
+<a href="#_deferfunc--arg1-arg2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3306 "View in source") [&#x24C9;][1]

 Defers executing the `func` function until the current call stack has cleared. Additional arguments will be passed to `func` when it is invoked.

@@ -543,7 +543,7 @@ _.defer(function() { alert('deferred'); });
 <!-- div -->

 ### <a id="_delayfunc-wait--arg1-arg2-"></a>`_.delay(func, wait [, arg1, arg2, ...])`
-<a href="#_delayfunc-wait--arg1-arg2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3278 "View in source") [&#x24C9;][1]
+<a href="#_delayfunc-wait--arg1-arg2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3286 "View in source") [&#x24C9;][1]

 Executes the `func` function after `wait` milliseconds. Additional arguments will be passed to `func` when it is invoked.

@@ -570,7 +570,7 @@ _.delay(log, 1000, 'logged later');
 <!-- div -->

 ### <a id="_differencearray--array1-array2-"></a>`_.difference(array [, array1, array2, ...])`
-<a href="#_differencearray--array1-array2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2441 "View in source") [&#x24C9;][1]
+<a href="#_differencearray--array1-array2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2442 "View in source") [&#x24C9;][1]

 Creates an array of `array` elements not present in the other arrays using strict equality for comparisons, i.e. `===`.

@@ -595,7 +595,7 @@ _.difference([1, 2, 3, 4, 5], [5, 2, 10]);
 <!-- div -->

 ### <a id="_escapestring"></a>`_.escape(string)`
-<a href="#_escapestring">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3518 "View in source") [&#x24C9;][1]
+<a href="#_escapestring">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3526 "View in source") [&#x24C9;][1]

 Converts the characters `&`, `<`, `>`, `"`, and `'` in `string` to their corresponding HTML entities.

@@ -619,7 +619,7 @@ _.escape('Moe, Larry & Curly');
 <!-- div -->

 ### <a id="_everycollection--callbackidentity-thisarg"></a>`_.every(collection [, callback=identity, thisArg])`
-<a href="#_everycollection--callbackidentity-thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1951 "View in source") [&#x24C9;][1]
+<a href="#_everycollection--callbackidentity-thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1949 "View in source") [&#x24C9;][1]

 Checks if the `callback` returns a truthy value for **all** elements of a `collection`. The `callback` is bound to `thisArg` and invoked with three arguments; *(value, index|key, collection)*.

@@ -648,7 +648,7 @@ _.every([true, 1, null, 'yes'], Boolean);
 <!-- div -->

 ### <a id="_extendobject--source1-source2-"></a>`_.extend(object [, source1, source2, ...])`
-<a href="#_extendobject--source1-source2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1158 "View in source") [&#x24C9;][1]
+<a href="#_extendobject--source1-source2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1152 "View in source") [&#x24C9;][1]

 Assigns enumerable properties of the source object(s) to the `destination` object. Subsequent sources will overwrite propery assignments of previous sources.

@@ -673,7 +673,7 @@ _.extend({ 'name': 'moe' }, { 'age': 40 });
 <!-- div -->

 ### <a id="_filtercollection--callbackidentity-thisarg"></a>`_.filter(collection [, callback=identity, thisArg])`
-<a href="#_filtercollection--callbackidentity-thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1971 "View in source") [&#x24C9;][1]
+<a href="#_filtercollection--callbackidentity-thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1969 "View in source") [&#x24C9;][1]

 Examines each element in a `collection`, returning an array of all elements the `callback` returns truthy for. The `callback` is bound to `thisArg` and invoked with three arguments; *(value, index|key, collection)*.

@@ -702,7 +702,7 @@ var evens = _.filter([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; })
 <!-- div -->

 ### <a id="_findcollection-callback--thisarg"></a>`_.find(collection, callback [, thisArg])`
-<a href="#_findcollection-callback--thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1993 "View in source") [&#x24C9;][1]
+<a href="#_findcollection-callback--thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1991 "View in source") [&#x24C9;][1]

 Examines each element in a `collection`, returning the first one the `callback` returns truthy for. The function returns as soon as it finds an acceptable element, and does not iterate over the entire `collection`. The `callback` is bound to `thisArg` and invoked with three arguments; *(value, index|key, collection)*.

@@ -731,7 +731,7 @@ var even = _.find([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; });
 <!-- div -->

 ### <a id="_firstarray--n"></a>`_.first(array [, n])`
-<a href="#_firstarray--n">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2475 "View in source") [&#x24C9;][1]
+<a href="#_firstarray--n">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2480 "View in source") [&#x24C9;][1]

 Gets the first element of the `array`. Pass `n` to return the first `n` elements of the `array`.

@@ -759,7 +759,7 @@ _.first([5, 4, 3, 2, 1]);
 <!-- div -->

 ### <a id="_flattenarray-shallow"></a>`_.flatten(array, shallow)`
-<a href="#_flattenarray-shallow">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2497 "View in source") [&#x24C9;][1]
+<a href="#_flattenarray-shallow">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2504 "View in source") [&#x24C9;][1]

 Flattens a nested array *(the nesting can be to any depth)*. If `shallow` is truthy, `array` will only be flattened a single level.

@@ -787,7 +787,7 @@ _.flatten([1, [2], [3, [[4]]]], true);
 <!-- div -->

 ### <a id="_foreachcollection-callback--thisarg"></a>`_.forEach(collection, callback [, thisArg])`
-<a href="#_foreachcollection-callback--thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2020 "View in source") [&#x24C9;][1]
+<a href="#_foreachcollection-callback--thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2018 "View in source") [&#x24C9;][1]

 Iterates over a `collection`, executing the `callback` for each element in the `collection`. The `callback` is bound to `thisArg` and invoked with three arguments; *(value, index|key, collection)*. Callbacks may exit iteration early by explicitly returning `false`.

@@ -819,7 +819,7 @@ _.forEach({ 'one': 1, 'two': 2, 'three': 3 }, alert);
 <!-- div -->

 ### <a id="_forinobject-callback--thisarg"></a>`_.forIn(object, callback [, thisArg])`
-<a href="#_forinobject-callback--thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1188 "View in source") [&#x24C9;][1]
+<a href="#_forinobject-callback--thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1182 "View in source") [&#x24C9;][1]

 Iterates over `object`'s own and inherited enumerable properties, executing the `callback` for each property. The `callback` is bound to `thisArg` and invoked with three arguments; *(value, key, object)*. Callbacks may exit iteration early by explicitly returning `false`.

@@ -855,7 +855,7 @@ _.forIn(new Dog('Dagny'), function(value, key) {
 <!-- div -->

 ### <a id="_forownobject-callback--thisarg"></a>`_.forOwn(object, callback [, thisArg])`
-<a href="#_forownobject-callback--thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1212 "View in source") [&#x24C9;][1]
+<a href="#_forownobject-callback--thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1206 "View in source") [&#x24C9;][1]

 Iterates over `object`'s own enumerable properties, executing the `callback` for each property. The `callback` is bound to `thisArg` and invoked with three arguments; *(value, key, object)*. Callbacks may exit iteration early by explicitly returning `false`.

@@ -883,7 +883,7 @@ _.forOwn({ '0': 'zero', '1': 'one', 'length': 2 }, function(num, key) {
 <!-- div -->

 ### <a id="_functionsobject"></a>`_.functions(object)`
-<a href="#_functionsobject">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1229 "View in source") [&#x24C9;][1]
+<a href="#_functionsobject">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1223 "View in source") [&#x24C9;][1]

 Creates a sorted array of all enumerable properties, own and inherited, of `object` that have function values.

@@ -910,7 +910,7 @@ _.functions(_);
 <!-- div -->

 ### <a id="_groupbycollection-callbackproperty--thisarg"></a>`_.groupBy(collection, callback|property [, thisArg])`
-<a href="#_groupbycollection-callbackproperty--thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2048 "View in source") [&#x24C9;][1]
+<a href="#_groupbycollection-callbackproperty--thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2046 "View in source") [&#x24C9;][1]

 Creates an object composed of keys returned from running each element of `collection` through a `callback`. The corresponding value of each key is an array of elements passed to `callback` that returned the key. The `callback` is bound to `thisArg` and invoked with three arguments; *(value, index|key, collection)*. The `callback` argument may also be the name of a property to count by *(e.g. 'length')*.

@@ -942,7 +942,7 @@ _.groupBy(['one', 'two', 'three'], 'length');
 <!-- div -->

 ### <a id="_hasobject-property"></a>`_.has(object, property)`
-<a href="#_hasobject-property">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1252 "View in source") [&#x24C9;][1]
+<a href="#_hasobject-property">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1246 "View in source") [&#x24C9;][1]

 Checks if the specified object `property` exists and is a direct property, instead of an inherited property.

@@ -967,7 +967,7 @@ _.has({ 'a': 1, 'b': 2, 'c': 3 }, 'b');
 <!-- div -->

 ### <a id="_identityvalue"></a>`_.identity(value)`
-<a href="#_identityvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3538 "View in source") [&#x24C9;][1]
+<a href="#_identityvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3546 "View in source") [&#x24C9;][1]

 This function returns the first argument passed to it.  Note: It is used throughout Lo-Dash as a default callback.

@@ -992,7 +992,7 @@ moe === _.identity(moe);
 <!-- div -->

 ### <a id="_indexofarray-value--fromindex0"></a>`_.indexOf(array, value [, fromIndex=0])`
-<a href="#_indexofarray-value--fromindex0">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2540 "View in source") [&#x24C9;][1]
+<a href="#_indexofarray-value--fromindex0">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2547 "View in source") [&#x24C9;][1]

 Gets the index at which the first occurrence of `value` is found using strict equality for comparisons, i.e. `===`. If the `array` is already sorted, passing `true` for `isSorted` will run a faster binary search.

@@ -1024,7 +1024,7 @@ _.indexOf([1, 1, 2, 2, 3, 3], 2, true);
 <!-- div -->

 ### <a id="_initialarray--n"></a>`_.initial(array [, n])`
-<a href="#_initialarray--n">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2577 "View in source") [&#x24C9;][1]
+<a href="#_initialarray--n">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2582 "View in source") [&#x24C9;][1]

 Gets all but the last element of `array`. Pass `n` to exclude the last `n` elements from the result.

@@ -1049,7 +1049,7 @@ _.initial([3, 2, 1]);
 <!-- div -->

 ### <a id="_intersectionarray1-array2-"></a>`_.intersection([array1, array2, ...])`
-<a href="#_intersectionarray1-array2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2596 "View in source") [&#x24C9;][1]
+<a href="#_intersectionarray1-array2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2603 "View in source") [&#x24C9;][1]

 Computes the intersection of all the passed-in arrays using strict equality for comparisons, i.e. `===`.

@@ -1073,7 +1073,7 @@ _.intersection([1, 2, 3], [101, 2, 1, 10], [2, 1]);
 <!-- div -->

 ### <a id="_invertobject"></a>`_.invert(object)`
-<a href="#_invertobject">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L819 "View in source") [&#x24C9;][1]
+<a href="#_invertobject">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L814 "View in source") [&#x24C9;][1]

 Creates an object composed of the inverted keys and values of the given `object`.

@@ -1097,7 +1097,7 @@ _.invert({ 'first': 'Moe', 'second': 'Larry', 'third': 'Curly' });
 <!-- div -->

 ### <a id="_invokecollection-methodname--arg1-arg2-"></a>`_.invoke(collection, methodName [, arg1, arg2, ...])`
-<a href="#_invokecollection-methodname--arg1-arg2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2076 "View in source") [&#x24C9;][1]
+<a href="#_invokecollection-methodname--arg1-arg2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2074 "View in source") [&#x24C9;][1]

 Invokes the method named by `methodName` on each element in the `collection`, returning an array of the results of each invoked method. Additional arguments will be passed to each invoked method. If `methodName` is a function it will be invoked for, and `this` bound to, each element in the `collection`.

@@ -1126,7 +1126,7 @@ _.invoke([123, 456], String.prototype.split, '');
 <!-- div -->

 ### <a id="_isargumentsvalue"></a>`_.isArguments(value)`
-<a href="#_isargumentsvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L841 "View in source") [&#x24C9;][1]
+<a href="#_isargumentsvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L836 "View in source") [&#x24C9;][1]

 Checks if `value` is an `arguments` object.

@@ -1153,7 +1153,7 @@ _.isArguments([1, 2, 3]);
 <!-- div -->

 ### <a id="_isarrayvalue"></a>`_.isArray(value)`
-<a href="#_isarrayvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L867 "View in source") [&#x24C9;][1]
+<a href="#_isarrayvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L862 "View in source") [&#x24C9;][1]

 Checks if `value` is an array.

@@ -1180,7 +1180,7 @@ _.isArray([1, 2, 3]);
 <!-- div -->

 ### <a id="_isbooleanvalue"></a>`_.isBoolean(value)`
-<a href="#_isbooleanvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1269 "View in source") [&#x24C9;][1]
+<a href="#_isbooleanvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1263 "View in source") [&#x24C9;][1]

 Checks if `value` is a boolean *(`true` or `false`)* value.

@@ -1204,7 +1204,7 @@ _.isBoolean(null);
 <!-- div -->

 ### <a id="_isdatevalue"></a>`_.isDate(value)`
-<a href="#_isdatevalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1286 "View in source") [&#x24C9;][1]
+<a href="#_isdatevalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1280 "View in source") [&#x24C9;][1]

 Checks if `value` is a date.

@@ -1228,7 +1228,7 @@ _.isDate(new Date);
 <!-- div -->

 ### <a id="_iselementvalue"></a>`_.isElement(value)`
-<a href="#_iselementvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1303 "View in source") [&#x24C9;][1]
+<a href="#_iselementvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1297 "View in source") [&#x24C9;][1]

 Checks if `value` is a DOM element.

@@ -1252,7 +1252,7 @@ _.isElement(document.body);
 <!-- div -->

 ### <a id="_isemptyvalue"></a>`_.isEmpty(value)`
-<a href="#_isemptyvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1328 "View in source") [&#x24C9;][1]
+<a href="#_isemptyvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1322 "View in source") [&#x24C9;][1]

 Checks if `value` is empty. Arrays, strings, or `arguments` objects with a length of `0` and objects with no own enumerable properties are considered "empty".

@@ -1282,7 +1282,7 @@ _.isEmpty('');
 <!-- div -->

 ### <a id="_isequala-b"></a>`_.isEqual(a, b)`
-<a href="#_isequala-b">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1368 "View in source") [&#x24C9;][1]
+<a href="#_isequala-b">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1361 "View in source") [&#x24C9;][1]

 Performs a deep comparison between two values to determine if they are equivalent to each other.

@@ -1313,7 +1313,7 @@ _.isEqual(moe, clone);
 <!-- div -->

 ### <a id="_isfinitevalue"></a>`_.isFinite(value)`
-<a href="#_isfinitevalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1525 "View in source") [&#x24C9;][1]
+<a href="#_isfinitevalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1518 "View in source") [&#x24C9;][1]

 Checks if `value` is a finite number.  Note: This is not the same as native `isFinite`, which will return true for booleans and other values. See http://es5.github.com/#x15.1.2.5.

@@ -1343,7 +1343,7 @@ _.isFinite(Infinity);
 <!-- div -->

 ### <a id="_isfunctionvalue"></a>`_.isFunction(value)`
-<a href="#_isfunctionvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L884 "View in source") [&#x24C9;][1]
+<a href="#_isfunctionvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L879 "View in source") [&#x24C9;][1]

 Checks if `value` is a function.

@@ -1367,7 +1367,7 @@ _.isFunction(_);
 <!-- div -->

 ### <a id="_isnanvalue"></a>`_.isNaN(value)`
-<a href="#_isnanvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1583 "View in source") [&#x24C9;][1]
+<a href="#_isnanvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1576 "View in source") [&#x24C9;][1]

 Checks if `value` is `NaN`.  Note: This is not the same as native `isNaN`, which will return true for `undefined` and other values. See http://es5.github.com/#x15.1.2.4.

@@ -1400,7 +1400,7 @@ _.isNaN(undefined);
 <!-- div -->

 ### <a id="_isnullvalue"></a>`_.isNull(value)`
-<a href="#_isnullvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1606 "View in source") [&#x24C9;][1]
+<a href="#_isnullvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1599 "View in source") [&#x24C9;][1]

 Checks if `value` is `null`.

@@ -1427,7 +1427,7 @@ _.isNull(undefined);
 <!-- div -->

 ### <a id="_isnumbervalue"></a>`_.isNumber(value)`
-<a href="#_isnumbervalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1623 "View in source") [&#x24C9;][1]
+<a href="#_isnumbervalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1616 "View in source") [&#x24C9;][1]

 Checks if `value` is a number.

@@ -1451,7 +1451,7 @@ _.isNumber(8.4 * 5);
 <!-- div -->

 ### <a id="_isobjectvalue"></a>`_.isObject(value)`
-<a href="#_isobjectvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1549 "View in source") [&#x24C9;][1]
+<a href="#_isobjectvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1542 "View in source") [&#x24C9;][1]

 Checks if `value` is the language type of Object. *(e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)*

@@ -1481,7 +1481,7 @@ _.isObject(1);
 <!-- div -->

 ### <a id="_isplainobjectvalue"></a>`_.isPlainObject(value)`
-<a href="#_isplainobjectvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L918 "View in source") [&#x24C9;][1]
+<a href="#_isplainobjectvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L913 "View in source") [&#x24C9;][1]

 Checks if a given `value` is an object created by the `Object` constructor.

@@ -1516,7 +1516,7 @@ _.isPlainObject({ 'name': 'moe', 'age': 40 });
 <!-- div -->

 ### <a id="_isregexpvalue"></a>`_.isRegExp(value)`
-<a href="#_isregexpvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1640 "View in source") [&#x24C9;][1]
+<a href="#_isregexpvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1633 "View in source") [&#x24C9;][1]

 Checks if `value` is a regular expression.

@@ -1540,7 +1540,7 @@ _.isRegExp(/moe/);
 <!-- div -->

 ### <a id="_isstringvalue"></a>`_.isString(value)`
-<a href="#_isstringvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1657 "View in source") [&#x24C9;][1]
+<a href="#_isstringvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1650 "View in source") [&#x24C9;][1]

 Checks if `value` is a string.

@@ -1564,7 +1564,7 @@ _.isString('moe');
 <!-- div -->

 ### <a id="_isundefinedvalue"></a>`_.isUndefined(value)`
-<a href="#_isundefinedvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1675 "View in source") [&#x24C9;][1]
+<a href="#_isundefinedvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1668 "View in source") [&#x24C9;][1]

 Checks if `value` is `undefined`.

@@ -1588,7 +1588,7 @@ _.isUndefined(void 0);
 <!-- div -->

 ### <a id="_keysobject"></a>`_.keys(object)`
-<a href="#_keysobject">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1692 "View in source") [&#x24C9;][1]
+<a href="#_keysobject">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1685 "View in source") [&#x24C9;][1]

 Creates an array composed of the own enumerable property names of `object`.

@@ -1612,7 +1612,7 @@ _.keys({ 'one': 1, 'two': 2, 'three': 3 });
 <!-- div -->

 ### <a id="_lastarray--n"></a>`_.last(array [, n])`
-<a href="#_lastarray--n">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2636 "View in source") [&#x24C9;][1]
+<a href="#_lastarray--n">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2642 "View in source") [&#x24C9;][1]

 Gets the last element of the `array`. Pass `n` to return the last `n` elements of the `array`.

@@ -1637,7 +1637,7 @@ _.last([3, 2, 1]);
 <!-- div -->

 ### <a id="_lastindexofarray-value--fromindexarraylength-1"></a>`_.lastIndexOf(array, value [, fromIndex=array.length-1])`
-<a href="#_lastindexofarray-value--fromindexarraylength-1">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2660 "View in source") [&#x24C9;][1]
+<a href="#_lastindexofarray-value--fromindexarraylength-1">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2668 "View in source") [&#x24C9;][1]

 Gets the index at which the last occurrence of `value` is found using strict equality for comparisons, i.e. `===`.

@@ -1666,7 +1666,7 @@ _.lastIndexOf([1, 2, 3, 1, 2, 3], 2, 3);
 <!-- div -->

 ### <a id="_latebindobject-methodname--arg1-arg2-"></a>`_.lateBind(object, methodName [, arg1, arg2, ...])`
-<a href="#_latebindobject-methodname--arg1-arg2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3336 "View in source") [&#x24C9;][1]
+<a href="#_latebindobject-methodname--arg1-arg2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3344 "View in source") [&#x24C9;][1]

 Creates a function that, when called, invokes `object[methodName]` and prepends any additional `lateBind` arguments to those passed to the bound function. This method differs from `_.bind` by allowing bound functions to reference methods that will be redefined or don't yet exist.

@@ -1707,7 +1707,7 @@ func();
 <!-- div -->

 ### <a id="_mapcollection--callbackidentity-thisarg"></a>`_.map(collection [, callback=identity, thisArg])`
-<a href="#_mapcollection--callbackidentity-thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2111 "View in source") [&#x24C9;][1]
+<a href="#_mapcollection--callbackidentity-thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2109 "View in source") [&#x24C9;][1]

 Creates an array of values by running each element in the `collection` through a `callback`. The `callback` is bound to `thisArg` and invoked with three arguments; *(value, index|key, collection)*.

@@ -1739,7 +1739,7 @@ _.map({ 'one': 1, 'two': 2, 'three': 3 }, function(num) { return num * 3; });
 <!-- div -->

 ### <a id="_maxarray--callback-thisarg"></a>`_.max(array [, callback, thisArg])`
-<a href="#_maxarray--callback-thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2697 "View in source") [&#x24C9;][1]
+<a href="#_maxarray--callback-thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2705 "View in source") [&#x24C9;][1]

 Retrieves the maximum value of an `array`. If `callback` is passed, it will be executed for each value in the `array` to generate the criterion by which the value is ranked. The `callback` is bound to `thisArg` and invoked with three arguments; *(value, index, array)*.

@@ -1771,7 +1771,7 @@ _.max(stooges, function(stooge) { return stooge.age; });
 <!-- div -->

 ### <a id="_memoizefunc--resolver"></a>`_.memoize(func [, resolver])`
-<a href="#_memoizefunc--resolver">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3358 "View in source") [&#x24C9;][1]
+<a href="#_memoizefunc--resolver">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3366 "View in source") [&#x24C9;][1]

 Creates a function that memoizes the result of `func`. If `resolver` is passed, it will be used to determine the cache key for storing the result based on the arguments passed to the memoized function. By default, the first argument passed to the memoized function is used as the cache key.

@@ -1797,7 +1797,7 @@ var fibonacci = _.memoize(function(n) {
 <!-- div -->

 ### <a id="_mergeobject--source1-source2-"></a>`_.merge(object [, source1, source2, ...])`
-<a href="#_mergeobject--source1-source2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1730 "View in source") [&#x24C9;][1]
+<a href="#_mergeobject--source1-source2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1728 "View in source") [&#x24C9;][1]

 Merges enumerable properties of the source object(s) into the `destination` object. Subsequent sources will overwrite propery assignments of previous sources.

@@ -1832,7 +1832,7 @@ _.merge(stooges, ages);
 <!-- div -->

 ### <a id="_minarray--callback-thisarg"></a>`_.min(array [, callback, thisArg])`
-<a href="#_minarray--callback-thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2733 "View in source") [&#x24C9;][1]
+<a href="#_minarray--callback-thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2741 "View in source") [&#x24C9;][1]

 Retrieves the minimum value of an `array`. If `callback` is passed, it will be executed for each value in the `array` to generate the criterion by which the value is ranked. The `callback` is bound to `thisArg` and invoked with three arguments; *(value, index, array)*.

@@ -1858,7 +1858,7 @@ _.min([10, 5, 100, 2, 1000]);
 <!-- div -->

 ### <a id="_mixinobject"></a>`_.mixin(object)`
-<a href="#_mixinobject">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3564 "View in source") [&#x24C9;][1]
+<a href="#_mixinobject">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3572 "View in source") [&#x24C9;][1]

 Adds functions properties of `object` to the `lodash` function and chainable wrapper.

@@ -1888,7 +1888,7 @@ _('curly').capitalize();
 <!-- div -->

 ### <a id="_noconflict"></a>`_.noConflict()`
-<a href="#_noconflict">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3595 "View in source") [&#x24C9;][1]
+<a href="#_noconflict">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3603 "View in source") [&#x24C9;][1]

 Reverts the '_' variable to its previous value and returns a reference to the `lodash` function.

@@ -1908,7 +1908,7 @@ var lodash = _.noConflict();
 <!-- div -->

 ### <a id="_objectkeys--values"></a>`_.object(keys [, values=[]])`
-<a href="#_objectkeys--values">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2768 "View in source") [&#x24C9;][1]
+<a href="#_objectkeys--values">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2776 "View in source") [&#x24C9;][1]

 Creates an object composed from arrays of `keys` and `values`. Pass either a single two dimensional array, i.e. `[[key1, value1], [key2, value2]]`, or two arrays, one of `keys` and one of corresponding `values`.

@@ -1933,7 +1933,7 @@ _.object(['moe', 'larry', 'curly'], [30, 40, 50]);
 <!-- div -->

 ### <a id="_omitobject-callback-prop1-prop2--thisarg"></a>`_.omit(object, callback|[prop1, prop2, ..., thisArg])`
-<a href="#_omitobject-callback-prop1-prop2--thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1787 "View in source") [&#x24C9;][1]
+<a href="#_omitobject-callback-prop1-prop2--thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1785 "View in source") [&#x24C9;][1]

 Creates a shallow clone of `object` excluding the specified properties. Property names may be specified as individual arguments or as arrays of property names. If `callback` is passed, it will be executed for each property in the `object`, omitting the properties `callback` returns truthy for. The `callback` is bound to `thisArg` and invoked with three arguments; *(value, key, object)*.

@@ -1964,7 +1964,7 @@ _.omit({ 'name': 'moe', '_hint': 'knucklehead', '_seed': '96c4eb' }, function(va
 <!-- div -->

 ### <a id="_oncefunc"></a>`_.once(func)`
-<a href="#_oncefunc">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3384 "View in source") [&#x24C9;][1]
+<a href="#_oncefunc">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3392 "View in source") [&#x24C9;][1]

 Creates a function that is restricted to one execution. Repeat calls to the function will return the value of the first call.

@@ -1990,7 +1990,7 @@ initialize();
 <!-- div -->

 ### <a id="_pairsobject"></a>`_.pairs(object)`
-<a href="#_pairsobject">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1803 "View in source") [&#x24C9;][1]
+<a href="#_pairsobject">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1801 "View in source") [&#x24C9;][1]

 Creates a two dimensional array of the given object's key-value pairs, i.e. `[[key1, value1], [key2, value2]]`.

@@ -2014,7 +2014,7 @@ _.pairs({ 'moe': 30, 'larry': 40, 'curly': 50 });
 <!-- div -->

 ### <a id="_partialfunc--arg1-arg2-"></a>`_.partial(func [, arg1, arg2, ...])`
-<a href="#_partialfunc--arg1-arg2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3419 "View in source") [&#x24C9;][1]
+<a href="#_partialfunc--arg1-arg2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3427 "View in source") [&#x24C9;][1]

 Creates a function that, when called, invokes `func` with any additional `partial` arguments prepended to those passed to the new function. This method is similar to `bind`, except it does **not** alter the `this` binding.

@@ -2041,7 +2041,7 @@ hi('moe');
 <!-- div -->

 ### <a id="_pickobject-callback-prop1-prop2--thisarg"></a>`_.pick(object, callback|[prop1, prop2, ..., thisArg])`
-<a href="#_pickobject-callback-prop1-prop2--thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1834 "View in source") [&#x24C9;][1]
+<a href="#_pickobject-callback-prop1-prop2--thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1832 "View in source") [&#x24C9;][1]

 Creates a shallow clone of `object` composed of the specified properties. Property names may be specified as individual arguments or as arrays of property names. If `callback` is passed, it will be executed for each property in the `object`, picking the properties `callback` returns truthy for. The `callback` is bound to `thisArg` and invoked with three arguments; *(value, key, object)*.

@@ -2072,7 +2072,7 @@ _.pick({ 'name': 'moe', '_hint': 'knucklehead', '_seed': '96c4eb' }, function(va
 <!-- div -->

 ### <a id="_pluckcollection-property"></a>`_.pluck(collection, property)`
-<a href="#_pluckcollection-property">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2134 "View in source") [&#x24C9;][1]
+<a href="#_pluckcollection-property">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2132 "View in source") [&#x24C9;][1]

 Retrieves the value of a specified property from all elements in the `collection`.

@@ -2103,7 +2103,7 @@ _.pluck(stooges, 'name');
 <!-- div -->

 ### <a id="_randommin0-max1"></a>`_.random([min=0, max=1])`
-<a href="#_randommin0-max1">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3618 "View in source") [&#x24C9;][1]
+<a href="#_randommin0-max1">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3626 "View in source") [&#x24C9;][1]

 Produces a random number between `min` and `max` *(inclusive)*. If only one argument is passed, a number between `0` and the given number will be returned.

@@ -2131,7 +2131,7 @@ _.random(5);
 <!-- div -->

 ### <a id="_rangestart0-end--step1"></a>`_.range([start=0], end [, step=1])`
-<a href="#_rangestart0-end--step1">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2812 "View in source") [&#x24C9;][1]
+<a href="#_rangestart0-end--step1">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2820 "View in source") [&#x24C9;][1]

 Creates an array of numbers *(positive and/or negative)* progressing from `start` up to but not including `stop`. This method is a port of Python's `range()` function. See http://docs.python.org/library/functions.html#range.

@@ -2169,7 +2169,7 @@ _.range(0);
 <!-- div -->

 ### <a id="_reducecollection-callback--accumulator-thisarg"></a>`_.reduce(collection, callback [, accumulator, thisArg])`
-<a href="#_reducecollection-callback--accumulator-thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2162 "View in source") [&#x24C9;][1]
+<a href="#_reducecollection-callback--accumulator-thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2160 "View in source") [&#x24C9;][1]

 Boils down a `collection` to a single value. The initial state of the reduction is `accumulator` and each successive step of it should be returned by the `callback`. The `callback` is bound to `thisArg` and invoked with `4` arguments; for arrays they are *(accumulator, value, index|key, collection)*.

@@ -2199,7 +2199,7 @@ var sum = _.reduce([1, 2, 3], function(memo, num) { return memo + num; });
 <!-- div -->

 ### <a id="_reducerightcollection-callback--accumulator-thisarg"></a>`_.reduceRight(collection, callback [, accumulator, thisArg])`
-<a href="#_reducerightcollection-callback--accumulator-thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2199 "View in source") [&#x24C9;][1]
+<a href="#_reducerightcollection-callback--accumulator-thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2197 "View in source") [&#x24C9;][1]

 The right-associative version of `_.reduce`.

@@ -2230,7 +2230,7 @@ var flat = _.reduceRight(list, function(a, b) { return a.concat(b); }, []);
 <!-- div -->

 ### <a id="_rejectcollection--callbackidentity-thisarg"></a>`_.reject(collection [, callback=identity, thisArg])`
-<a href="#_rejectcollection--callbackidentity-thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2236 "View in source") [&#x24C9;][1]
+<a href="#_rejectcollection--callbackidentity-thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2234 "View in source") [&#x24C9;][1]

 The opposite of `_.filter`, this method returns the values of a `collection` that `callback` does **not** return truthy for.

@@ -2256,7 +2256,7 @@ var odds = _.reject([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; });
 <!-- div -->

 ### <a id="_restarray--n"></a>`_.rest(array [, n])`
-<a href="#_restarray--n">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2851 "View in source") [&#x24C9;][1]
+<a href="#_restarray--n">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2859 "View in source") [&#x24C9;][1]

 The opposite of `_.initial`, this method gets all but the first value of `array`. Pass `n` to exclude the first `n` values from the result.

@@ -2284,7 +2284,7 @@ _.rest([3, 2, 1]);
 <!-- div -->

 ### <a id="_resultobject-property"></a>`_.result(object, property)`
-<a href="#_resultobject-property">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3657 "View in source") [&#x24C9;][1]
+<a href="#_resultobject-property">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3665 "View in source") [&#x24C9;][1]

 Resolves the value of `property` on `object`. If `property` is a function it will be invoked and its result returned, else the property value is returned. If `object` is falsey, then `null` is returned.

@@ -2319,7 +2319,7 @@ _.result(object, 'stuff');
 <!-- div -->

 ### <a id="_shufflearray"></a>`_.shuffle(array)`
-<a href="#_shufflearray">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2869 "View in source") [&#x24C9;][1]
+<a href="#_shufflearray">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2879 "View in source") [&#x24C9;][1]

 Creates an array of shuffled `array` values, using a version of the Fisher-Yates shuffle. See http://en.wikipedia.org/wiki/Fisher-Yates_shuffle.

@@ -2343,7 +2343,7 @@ _.shuffle([1, 2, 3, 4, 5, 6]);
 <!-- div -->

 ### <a id="_sizecollection"></a>`_.size(collection)`
-<a href="#_sizecollection">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2260 "View in source") [&#x24C9;][1]
+<a href="#_sizecollection">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2258 "View in source") [&#x24C9;][1]

 Gets the size of the `collection` by returning `collection.length` for arrays and array-like objects or the number of own enumerable properties for objects.

@@ -2373,7 +2373,7 @@ _.size('curly');
 <!-- div -->

 ### <a id="_somecollection--callbackidentity-thisarg"></a>`_.some(collection [, callback=identity, thisArg])`
-<a href="#_somecollection--callbackidentity-thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2285 "View in source") [&#x24C9;][1]
+<a href="#_somecollection--callbackidentity-thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2283 "View in source") [&#x24C9;][1]

 Checks if the `callback` returns a truthy value for **any** element of a `collection`. The function returns as soon as it finds passing value, and does not iterate over the entire `collection`. The `callback` is bound to `thisArg` and invoked with three arguments; *(value, index|key, collection)*.

@@ -2402,7 +2402,7 @@ _.some([null, 0, 'yes', false]);
 <!-- div -->

 ### <a id="_sortbycollection-callbackproperty--thisarg"></a>`_.sortBy(collection, callback|property [, thisArg])`
-<a href="#_sortbycollection-callbackproperty--thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2315 "View in source") [&#x24C9;][1]
+<a href="#_sortbycollection-callbackproperty--thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2313 "View in source") [&#x24C9;][1]

 Creates an array, stable sorted in ascending order by the results of running each element of `collection` through a `callback`. The `callback` is bound to `thisArg` and invoked with three arguments; *(value, index|key, collection)*. The `callback` argument may also be the name of a property to sort by *(e.g. 'length')*.

@@ -2434,7 +2434,7 @@ _.sortBy(['larry', 'brendan', 'moe'], 'length');
 <!-- div -->

 ### <a id="_sortedindexarray-value--callbackidentityproperty-thisarg"></a>`_.sortedIndex(array, value [, callback=identity|property, thisArg])`
-<a href="#_sortedindexarray-value--callbackidentityproperty-thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2923 "View in source") [&#x24C9;][1]
+<a href="#_sortedindexarray-value--callbackidentityproperty-thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2932 "View in source") [&#x24C9;][1]

 Uses a binary search to determine the smallest index at which the `value` should be inserted into `array` in order to maintain the sort order of the sorted `array`. If `callback` is passed, it will be executed for `value` and each element in `array` to compute their sort ranking. The `callback` is bound to `thisArg` and invoked with one argument; *(value)*. The `callback` argument may also be the name of a property to order by.

@@ -2478,7 +2478,7 @@ _.sortedIndex(['twenty', 'thirty', 'fifty'], 'fourty', function(word) {
 <!-- div -->

 ### <a id="_tapvalue-interceptor"></a>`_.tap(value, interceptor)`
-<a href="#_tapvalue-interceptor">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3945 "View in source") [&#x24C9;][1]
+<a href="#_tapvalue-interceptor">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3954 "View in source") [&#x24C9;][1]

 Invokes `interceptor` with the `value` as the first argument, and then returns `value`. The purpose of this method is to "tap into" a method chain, in order to perform operations on intermediate results within the chain.

@@ -2508,7 +2508,7 @@ _.chain([1, 2, 3, 200])
 <!-- div -->

 ### <a id="_templatetext-data-options"></a>`_.template(text, data, options)`
-<a href="#_templatetext-data-options">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3727 "View in source") [&#x24C9;][1]
+<a href="#_templatetext-data-options">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3735 "View in source") [&#x24C9;][1]

 A micro-templating method that handles arbitrary delimiters, preserves whitespace, and correctly escapes quotes within interpolated code.  Note: In the development build `_.template` utilizes sourceURLs for easier debugging. See http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl  Note: Lo-Dash may be used in Chrome extensions by either creating a `lodash csp` build and avoiding `_.template` use, or loading Lo-Dash in a sandboxed page. See http://developer.chrome.com/trunk/extensions/sandboxingEval.html

@@ -2573,7 +2573,7 @@ fs.writeFileSync(path.join(cwd, 'jst.js'), '\
 <!-- div -->

 ### <a id="_throttlefunc-wait"></a>`_.throttle(func, wait)`
-<a href="#_throttlefunc-wait">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3441 "View in source") [&#x24C9;][1]
+<a href="#_throttlefunc-wait">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3449 "View in source") [&#x24C9;][1]

 Creates a function that, when executed, will only call the `func` function at most once per every `wait` milliseconds. If the throttled function is invoked more than once during the `wait` timeout, `func` will also be called on the trailing edge of the timeout. Subsequent calls to the throttled function will return the result of the last `func` call.

@@ -2598,7 +2598,7 @@ jQuery(window).on('scroll', throttled);
 <!-- div -->

 ### <a id="_timesn-callback--thisarg"></a>`_.times(n, callback [, thisArg])`
-<a href="#_timesn-callback--thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3845 "View in source") [&#x24C9;][1]
+<a href="#_timesn-callback--thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3854 "View in source") [&#x24C9;][1]

 Executes the `callback` function `n` times, returning an array of the results of each `callback` execution. The `callback` is bound to `thisArg` and invoked with one argument; *(index)*.

@@ -2630,7 +2630,7 @@ _.times(3, function(n) { this.cast(n); }, mage);
 <!-- div -->

 ### <a id="_toarraycollection"></a>`_.toArray(collection)`
-<a href="#_toarraycollection">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2351 "View in source") [&#x24C9;][1]
+<a href="#_toarraycollection">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2349 "View in source") [&#x24C9;][1]

 Converts the `collection`, to an array.

@@ -2654,7 +2654,7 @@ Converts the `collection`, to an array.
 <!-- div -->

 ### <a id="_unescapestring"></a>`_.unescape(string)`
-<a href="#_unescapestring">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3870 "View in source") [&#x24C9;][1]
+<a href="#_unescapestring">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3879 "View in source") [&#x24C9;][1]

 Converts the HTML entities `&amp;`, `&lt;`, `&gt;`, `&quot;`, and `&#x27;` in `string` to their corresponding characters.

@@ -2678,7 +2678,7 @@ _.unescape('Moe, Larry &amp; Curly');
 <!-- div -->

 ### <a id="_unionarray1-array2-"></a>`_.union([array1, array2, ...])`
-<a href="#_unionarray1-array2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2952 "View in source") [&#x24C9;][1]
+<a href="#_unionarray1-array2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2960 "View in source") [&#x24C9;][1]

 Computes the union of the passed-in arrays using strict equality for comparisons, i.e. `===`.

@@ -2702,7 +2702,7 @@ _.union([1, 2, 3], [101, 2, 1, 10], [2, 1]);
 <!-- div -->

 ### <a id="_uniqarray--issortedfalse-callbackidentity-thisarg"></a>`_.uniq(array [, isSorted=false, callback=identity, thisArg])`
-<a href="#_uniqarray--issortedfalse-callbackidentity-thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2996 "View in source") [&#x24C9;][1]
+<a href="#_uniqarray--issortedfalse-callbackidentity-thisarg">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3004 "View in source") [&#x24C9;][1]

 Creates a duplicate-value-free version of the `array` using strict equality for comparisons, i.e. `===`. If the `array` is already sorted, passing `true` for `isSorted` will run a faster algorithm. If `callback` is passed, each element of `array` is passed through a callback` before uniqueness is computed. The `callback` is bound to `thisArg` and invoked with three arguments; *(value, index, array)*.

@@ -2741,7 +2741,7 @@ _.uniq([1, 2, 1.5, 3, 2.5], function(num) { return this.floor(num); }, Math);
 <!-- div -->

 ### <a id="_uniqueidprefix"></a>`_.uniqueId([prefix])`
-<a href="#_uniqueidprefix">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3888 "View in source") [&#x24C9;][1]
+<a href="#_uniqueidprefix">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3897 "View in source") [&#x24C9;][1]

 Generates a unique id. If `prefix` is passed, the id will be appended to it.

@@ -2765,7 +2765,7 @@ _.uniqueId('contact_');
 <!-- div -->

 ### <a id="_valuesobject"></a>`_.values(object)`
-<a href="#_valuesobject">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1864 "View in source") [&#x24C9;][1]
+<a href="#_valuesobject">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L1862 "View in source") [&#x24C9;][1]

 Creates an array composed of the own enumerable property values of `object`.

@@ -2789,7 +2789,7 @@ _.values({ 'one': 1, 'two': 2, 'three': 3 });
 <!-- div -->

 ### <a id="_wherecollection-properties"></a>`_.where(collection, properties)`
-<a href="#_wherecollection-properties">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2382 "View in source") [&#x24C9;][1]
+<a href="#_wherecollection-properties">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2383 "View in source") [&#x24C9;][1]

 Examines each element in a `collection`, returning an array of all elements that contain the given `properties`.

@@ -2820,7 +2820,7 @@ _.where(stooges, { 'age': 40 });
 <!-- div -->

 ### <a id="_withoutarray--value1-value2-"></a>`_.without(array [, value1, value2, ...])`
-<a href="#_withoutarray--value1-value2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3038 "View in source") [&#x24C9;][1]
+<a href="#_withoutarray--value1-value2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3045 "View in source") [&#x24C9;][1]

 Creates an array with all occurrences of the passed values removed using strict equality for comparisons, i.e. `===`.

@@ -2845,7 +2845,7 @@ _.without([1, 2, 1, 0, 3, 1, 4], 0, 1);
 <!-- div -->

 ### <a id="_wrapvalue-wrapper"></a>`_.wrap(value, wrapper)`
-<a href="#_wrapvalue-wrapper">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3492 "View in source") [&#x24C9;][1]
+<a href="#_wrapvalue-wrapper">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3500 "View in source") [&#x24C9;][1]

 Creates a function that passes `value` to the `wrapper` function as its first argument. Additional arguments passed to the new function are appended to those passed to the `wrapper` function.

@@ -2874,7 +2874,7 @@ hello();
 <!-- div -->

 ### <a id="_ziparray1-array2-"></a>`_.zip([array1, array2, ...])`
-<a href="#_ziparray1-array2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3068 "View in source") [&#x24C9;][1]
+<a href="#_ziparray1-array2-">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3076 "View in source") [&#x24C9;][1]

 Groups the elements of each array at their corresponding indexes. Useful for separate data sources that are coordinated through matching array indexes. For a matrix of nested arrays, `_.zip.apply(...)` can transpose the matrix in a similar fashion.

@@ -2905,7 +2905,7 @@ _.zip(['moe', 'larry', 'curly'], [30, 40, 50], [true, false, false]);
 <!-- div -->

 ### <a id="_prototypechain"></a>`_.prototype.chain()`
-<a href="#_prototypechain">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3963 "View in source") [&#x24C9;][1]
+<a href="#_prototypechain">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3972 "View in source") [&#x24C9;][1]

 Enables method chaining on the wrapper object.

@@ -2926,7 +2926,7 @@ _([1, 2, 3]).value();
 <!-- div -->

 ### <a id="_prototypevalue"></a>`_.prototype.value()`
-<a href="#_prototypevalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3980 "View in source") [&#x24C9;][1]
+<a href="#_prototypevalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L3989 "View in source") [&#x24C9;][1]

 Extracts the wrapped value.

--- a/doc/parse.php
+++ b/doc/parse.php
@@ -21,7 +21,7 @@
  // generate Markdown
  $markdown = docdown(array(
    'path' => '../' . $file,
-    'title' => 'Lo-Dash <sup>v0.8.0</sup>',
+    'title' => 'Lo-Dash <sup>v0.8.1</sup>',
    'url'  => 'https://github.com/bestiejs/lodash/blob/master/lodash.js'
  ));

--- a/lodash.js
+++ b/lodash.js
@@ -1,7 +1,7 @@
 /*!
- * Lo-Dash v0.8.0 <http://lodash.com>
+ * Lo-Dash v0.8.1 <http://lodash.com>
 * (c) 2012 John-David Dalton <http://allyoucanleet.com/>
- * Based on Underscore.js 1.4.0 <http://underscorejs.org>
+ * Based on Underscore.js 1.4.1 <http://underscorejs.org>
 * (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc.
 * Available under MIT license <http://lodash.com/license>
 */
@@ -315,6 +315,8 @@
    'var index, value, iteratee = <%= firstArg %>, ' +
    // assign the `result` variable an initial value
    'result<% if (init) { %> = <%= init %><% } %>;\n' +
+    // exit early if the first argument is falsey
+    'if (!<%= firstArg %>) return result;\n' +
    // add code before the iteration branches
    '<%= top %>;\n' +

@@ -480,7 +482,7 @@

  /** Reusable iterator options for `invoke`, `map`, `pluck`, and `sortBy` */
  var mapIteratorOptions = {
-    'init': '',
+    'init': false,
    'beforeLoop': {
      'array':  'result = Array(length)',
      'object': 'result = ' + (isKeysFast ? 'Array(length)' : '[]')
@@ -670,8 +672,7 @@
   *  useStrict - A boolean to specify whether or not to include the ES5
   *   "use strict" directive.
   *
-   *  args - A string of comma separated arguments the iteration function will
-   *   accept.
+   *  args - A string of comma separated arguments the iteration function will accept.
   *
   *  init - A string to specify the initial value of the `result` variable.
   *
@@ -689,31 +690,35 @@
   * @returns {Function} Returns the compiled function.
   */
  function createIterator() {
-    var object,
-        prop,
-        value,
-        index = -1,
+    var index = -1,
        length = arguments.length;

    // merge options into a template data object
    var data = {
      'bottom': '',
+      'hasDontEnumBug': hasDontEnumBug,
+      'isKeysFast': isKeysFast,
+      'noArgsEnum': noArgsEnum,
+      'noCharByIndex': noCharByIndex,
+      'shadowed': shadowed,
      'top': '',
-      'arrayBranch': { 'beforeLoop': '' },
-      'objectBranch': { 'beforeLoop': '' }
+      'useHas': true,
+      'useStrict': isStrictFast,
+      'arrayBranch': {},
+      'objectBranch': {}
    };

    while (++index < length) {
-      object = arguments[index];
-      for (prop in object) {
-        value = (value = object[prop]) == null ? '' : value;
+      var object = arguments[index];
+      for (var prop in object) {
+        var value = object[prop];
        // keep this regexp explicit for the build pre-process
        if (/beforeLoop|inLoop/.test(prop)) {
          if (typeof value == 'string') {
            value = { 'array': value, 'object': value };
          }
-          data.arrayBranch[prop] = value.array || '';
-          data.objectBranch[prop] = value.object || '';
+          data.arrayBranch[prop] = value.array;
+          data.objectBranch[prop] = value.object;
        } else {
          data[prop] = value;
        }
@@ -722,28 +727,18 @@
    // set additional template `data` values
    var args = data.args,
        firstArg = /^[^,]+/.exec(args)[0],
-        init = data.init,
-        useStrict = data.useStrict;
+        init = data.init;

    data.firstArg = firstArg;
-    data.hasDontEnumBug = hasDontEnumBug;
    data.init = init == null ? firstArg : init;
-    data.isKeysFast = isKeysFast;
-    data.noArgsEnum = noArgsEnum;
-    data.shadowed = shadowed;
-    data.useHas = data.useHas !== false;
-    data.useStrict = useStrict == null ? isStrictFast : useStrict;

-    if (data.noCharByIndex == null) {
-      data.noCharByIndex = noCharByIndex;
-    }
    if (firstArg != 'collection' || !data.arrayBranch.inLoop) {
      data.arrayBranch = null;
    }
    // create the function factory
    var factory = Function(
        'arrayLikeClasses, ArrayProto, bind, compareAscending, concat, createCallback, ' +
-        'forIn, hasOwnProperty, identity, indexOf, isArguments, isArray, isFunction, ' +
+        'forIn, hasOwnProperty, indexOf, isArguments, isArray, isFunction, ' +
        'isPlainObject, objectClass, objectTypes, nativeKeys, propertyIsEnumerable, ' +
        'slice, stringClass, toString, undefined',
      'var callee = function(' + args + ') {\n' + iteratorTemplate(data) + '\n};\n' +
@@ -752,7 +747,7 @@
    // return the compiled function
    return factory(
      arrayLikeClasses, ArrayProto, bind, compareAscending, concat, createCallback,
-      forIn, hasOwnProperty, identity, indexOf, isArguments, isArray, isFunction,
+      forIn, hasOwnProperty, indexOf, isArguments, isArray, isFunction,
      isPlainObject, objectClass, objectTypes, nativeKeys, propertyIsEnumerable,
      slice, stringClass, toString
    );
@@ -844,7 +839,7 @@
  // fallback for browsers that can't detect `arguments` objects by [[Class]]
  if (noArgsClass) {
    isArguments = function(value) {
-      return !!(value && hasOwnProperty.call(value, 'callee'));
+      return value ? hasOwnProperty.call(value, 'callee') : false;
    };
  }

@@ -981,7 +976,6 @@
  var shimKeys = createIterator({
    'args': 'object',
    'init': '[]',
-    'top': 'if (!(object && objectTypes[typeof object])) throw TypeError()',
    'inLoop': 'result.push(index)'
  });

@@ -1250,7 +1244,7 @@
   * // => true
   */
  function has(object, property) {
-    return hasOwnProperty.call(object, property);
+    return object ? hasOwnProperty.call(object, property) : false;
  }

  /**
@@ -1329,7 +1323,6 @@
    'args': 'value',
    'init': 'true',
    'top':
-      'if (!value) return result;\n' +
      'var className = toString.call(value),\n' +
      '    length = value.length;\n' +
      'if (arrayLikeClasses[className]' +
@@ -1690,10 +1683,15 @@
   * // => ['one', 'two', 'three'] (order is not guaranteed)
   */
  var keys = !nativeKeys ? shimKeys : function(object) {
+    var type = typeof object;
+
    // avoid iterating over the `prototype` property
-    return typeof object == 'function' && propertyIsEnumerable.call(object, 'prototype')
-      ? shimKeys(object)
-      : nativeKeys(object);
+    if (type == 'function' && propertyIsEnumerable.call(object, 'prototype')) {
+      return shimKeys(object);
+    }
+    return object && objectTypes[type]
+      ? nativeKeys(object)
+     : [];
  };

  /**
@@ -1991,7 +1989,7 @@
   * // => 2
   */
  var find = createIterator(baseIteratorOptions, forEachIteratorOptions, {
-    'init': '',
+    'init': false,
    'inLoop': 'if (callback(value, index, collection)) return value'
  });

@@ -2198,7 +2196,7 @@
   */
  function reduceRight(collection, callback, accumulator, thisArg) {
    var iteratee = collection,
-        length = collection.length,
+        length = collection ? collection.length : 0,
        noaccum = arguments.length < 3;

    if (length !== +length) {
@@ -2349,7 +2347,10 @@
   * // => [2, 3, 4]
   */
  function toArray(collection) {
-    var length = collection ? collection.length : 0;
+    if (!collection) {
+      return [];
+    }
+    var length = collection.length;
    if (length === +length) {
      return (noArraySliceOnStrings ? toString.call(collection) == stringClass : typeof collection == 'string')
        ? collection.split('')
@@ -2411,7 +2412,7 @@
   */
  function compact(array) {
    var index = -1,
-        length = array.length,
+        length = array ? array.length : 0,
        result = [];

    while (++index < length) {
@@ -2439,15 +2440,19 @@
   * // => [1, 3, 4]
   */
  function difference(array) {
+    var result = [];
+    if (!array) {
+      return result;
+    }
    var index = -1,
        length = array.length,
        flattened = concat.apply(ArrayProto, arguments),
-        contains = cachedContains(flattened, length),
-        result = [];
+        contains = cachedContains(flattened, length);

    while (++index < length) {
-      if (!contains(array[index])) {
-        result.push(array[index]);
+      var value = array[index];
+      if (!contains(value)) {
+        result.push(value);
      }
    }
    return result;
@@ -2473,7 +2478,9 @@
   * // => 5
   */
  function first(array, n, guard) {
-    return (n == null || guard) ? array[0] : slice.call(array, 0, n);
+    if (array) {
+      return (n == null || guard) ? array[0] : slice.call(array, 0, n);
+    }
  }

  /**
@@ -2497,7 +2504,7 @@
  function flatten(array, shallow) {
    var value,
        index = -1,
-        length = array.length,
+        length = array ? array.length : 0,
        result = [];

    while (++index < length) {
@@ -2539,15 +2546,13 @@
   */
  function indexOf(array, value, fromIndex) {
    var index = -1,
-        length = array.length;
+        length = array ? array.length : 0;

-    if (fromIndex) {
-      if (typeof fromIndex == 'number') {
-        index = (fromIndex < 0 ? nativeMax(0, length + fromIndex) : fromIndex) - 1;
-      } else {
-        index = sortedIndex(array, value);
-        return array[index] === value ? index : -1;
-      }
+    if (typeof fromIndex == 'number') {
+      index = (fromIndex < 0 ? nativeMax(0, length + fromIndex) : fromIndex || 0) - 1;
+    } else if (fromIndex) {
+      index = sortedIndex(array, value);
+      return array[index] === value ? index : -1;
    }
    while (++index < length) {
      if (array[index] === value) {
@@ -2575,7 +2580,9 @@
   * // => [3, 2]
   */
  function initial(array, n, guard) {
-    return slice.call(array, 0, -((n == null || guard) ? 1 : n));
+    return array
+      ? slice.call(array, 0, -((n == null || guard) ? 1 : n))
+      : [];
  }

  /**
@@ -2594,15 +2601,14 @@
   * // => [1, 2]
   */
  function intersection(array) {
-    var value,
-        argsLength = arguments.length,
+    var argsLength = arguments.length,
        cache = [],
        index = -1,
-        length = array.length,
+        length = array ? array.length : 0,
        result = [];

    array: while (++index < length) {
-      value = array[index];
+      var value = array[index];
      if (indexOf(result, value) < 0) {
        for (var argsIndex = 1; argsIndex < argsLength; argsIndex++) {
          if (!(cache[argsIndex] || (cache[argsIndex] = cachedContains(arguments[argsIndex])))(value)) {
@@ -2634,8 +2640,10 @@
   * // => 1
   */
  function last(array, n, guard) {
-    var length = array.length;
-    return (n == null || guard) ? array[length - 1] : slice.call(array, -n || length);
+    if (array) {
+      var length = array.length;
+      return (n == null || guard) ? array[length - 1] : slice.call(array, -n || length);
+    }
  }

  /**
@@ -2658,8 +2666,8 @@
   * // => 1
   */
  function lastIndexOf(array, value, fromIndex) {
-    var index = array.length;
-    if (fromIndex && typeof fromIndex == 'number') {
+    var index = array ? array.length : 0;
+    if (typeof fromIndex == 'number') {
      index = (fromIndex < 0 ? nativeMax(0, index + fromIndex) : nativeMin(fromIndex, index - 1)) + 1;
    }
    while (index--) {
@@ -2767,7 +2775,7 @@
   */
  function object(keys, values) {
    var index = -1,
-        length = keys.length,
+        length = keys ? keys.length : 0,
        result = {};

    while (++index < length) {
@@ -2849,7 +2857,9 @@
   * // => [2, 1]
   */
  function rest(array, n, guard) {
-    return slice.call(array, (n == null || guard) ? 1 : n);
+    return array
+      ? slice.call(array, (n == null || guard) ? 1 : n)
+      : [];
  }

  /**
@@ -2867,13 +2877,12 @@
   * // => [4, 1, 6, 3, 5, 2]
   */
  function shuffle(array) {
-    var rand,
-        index = -1,
-        length = array.length,
+    var index = -1,
+        length = array ? array.length : 0,
        result = Array(length);

    while (++index < length) {
-      rand = nativeFloor(nativeRandom() * (index + 1));
+      var rand = nativeFloor(nativeRandom() * (index + 1));
      result[index] = result[rand];
      result[rand] = array[index];
    }
@@ -2921,14 +2930,13 @@
   * // => 2
   */
  function sortedIndex(array, value, callback, thisArg) {
-    var mid,
-        low = 0,
-        high = array.length;
+    var low = 0,
+        high = array ? array.length : low;

    callback = createCallback(callback, thisArg);
    value = callback(value);
    while (low < high) {
-      mid = (low + high) >>> 1;
+      var mid = (low + high) >>> 1;
      callback(array[mid]) < value ? low = mid + 1 : high = mid;
    }
    return low;
@@ -2994,9 +3002,8 @@
   * // => [1, 2, 3]
   */
  function uniq(array, isSorted, callback, thisArg) {
-    var computed,
-        index = -1,
-        length = array.length,
+    var index = -1,
+        length = array ? array.length : 0,
        result = [],
        seen = [];

@@ -3008,7 +3015,7 @@
    }
    callback = createCallback(callback, thisArg);
    while (++index < length) {
-      computed = callback(array[index], index, array);
+      var computed = callback(array[index], index, array);
      if (isSorted
            ? !index || seen[seen.length - 1] !== computed
            : indexOf(seen, computed) < 0
@@ -3037,13 +3044,14 @@
   */
  function without(array) {
    var index = -1,
-        length = array.length,
+        length = array ? array.length : 0,
        contains = cachedContains(arguments, 1, 20),
        result = [];

    while (++index < length) {
-      if (!contains(array[index])) {
-        result.push(array[index]);
+      var value = array[index];
+      if (!contains(value)) {
+        result.push(value);
      }
    }
    return result;
@@ -3067,7 +3075,7 @@
   */
  function zip(array) {
    var index = -1,
-        length = max(pluck(arguments, 'length')),
+        length = array ? max(pluck(arguments, 'length')) : 0,
        result = Array(length);

    while (++index < length) {
@@ -3174,8 +3182,8 @@
      '  return result\n' +
      '}',
    'inLoop':
-      'if (isFunction(result[index])) {\n' +
-      '  result[index] = bind(result[index], result)\n' +
+      'if (isFunction(value)) {\n' +
+      '  result[index] = bind(value, result)\n' +
      '}'
  });

@@ -3729,6 +3737,7 @@
    // http://ejohn.org/blog/javascript-micro-templating/
    // and Laura Doktorova's doT.js
    // https://github.com/olado/doT
+    text += '';
    options || (options = {});

    var isEvaluating,
@@ -3990,7 +3999,7 @@
   * @memberOf _
   * @type String
   */
-  lodash.VERSION = '0.8.0';
+  lodash.VERSION = '0.8.1';

  // assign static methods
  lodash.after = after;
--- a/lodash.min.js
+++ b/lodash.min.js
@@ -1,39 +1,39 @@
 /*!
- Lo-Dash 0.8.0 lodash.com/license
- Underscore.js 1.4.0 underscorejs.org/LICENSE
+ Lo-Dash 0.8.1 lodash.com/license
+ Underscore.js 1.4.1 underscorejs.org/LICENSE
 */
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--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
  "name": "lodash",
-  "version": "0.8.0",
+  "version": "0.8.1",
  "description": "A drop-in replacement for Underscore.js delivering performance, bug fixes, and additional features.",
  "homepage": "http://lodash.com",
  "main": "./lodash",
--- a/test/test-build.js
+++ b/test/test-build.js
@@ -633,6 +633,24 @@
        start();
      });
    });
+
+    asyncTest('`lodash underscore plus=clone`', function() {
+      var start = _.after(2, _.once(QUnit.start));
+
+      build(['-s', 'underscore', 'plus=clone'], function(source, filePath) {
+        var array = [{ 'value': 1 }],
+            basename = path.basename(filePath, '.js'),
+            context = createContext();
+
+        vm.runInContext(source, context);
+        var lodash = context._,
+            clone = lodash.clone(array, true);
+
+        deepEqual(array, clone, basename);
+        notEqual(array, clone, basename);
+        start();
+      });
+    });
  }());

  /*--------------------------------------------------------------------------*/
--- a/test/test.js
+++ b/test/test.js
@@ -395,7 +395,7 @@
          } else {
            func(object, { 'a': 1 });
          }
-        } catch(e) {console.log(e);
+        } catch(e) {
          pass = false;
        }
        ok(pass);
@@ -646,6 +646,15 @@
      var array = [1, 2, 3];
      deepEqual(_.initial(array, 0), []);
    });
+
+    test('should allow a falsey `array` argument', function() {
+      _.each(falsey, function(index, value) {
+        try {
+          var actual = index ? _.initial(value) : _.initial();
+        } catch(e) { }
+        deepEqual(actual, []);
+      })
+    });
  }());

  /*--------------------------------------------------------------------------*/
@@ -1291,6 +1300,21 @@

  /*--------------------------------------------------------------------------*/

+  QUnit.module('lodash.rest');
+
+  (function() {
+    test('should allow a falsey `array` argument', function() {
+      _.each(falsey, function(index, value) {
+        try {
+          var actual = index ? _.rest(value) : _.rest();
+        } catch(e) { }
+        deepEqual(actual, []);
+      })
+    });
+  }());
+
+  /*--------------------------------------------------------------------------*/
+
  QUnit.module('lodash.size');

  (function() {
@@ -1702,11 +1726,48 @@
  QUnit.module('lodash methods');

  (function() {
+    test('should allow falsey arguments', function() {
+      var funcs = _.without.apply(_, [_.functions(_)].concat([
+        '_',
+        '_iteratorTemplate',
+        '_shimKeys',
+        'after',
+        'bind',
+        'bindAll',
+        'compose',
+        'debounce',
+        'defer',
+        'delay',
+        'functions',
+        'memoize',
+        'once',
+        'partial',
+        'tap',
+        'throttle',
+        'wrap'
+      ]));
+
+      _.each(funcs, function(methodName) {
+        var func = _[methodName],
+            pass = true;
+
+        _.each(falsey, function(value, index) {
+          try {
+            index ? func(value) : func();
+          } catch(e) {
+            pass = false;
+          }
+        });
+
+        ok(pass, '_.' + methodName + ' allows falsey arguments');
+      });
+    });
+
    test('should handle `null` `thisArg` arguments', function() {
      var thisArg,
          array = ['a'],
          callback = function() { thisArg = this; },
-          useStrict = (function() { return this; }).call(null) === null;
+          expected = (function() { return this; }).call(null);

      var funcs = [
        'countBy',
@@ -1748,10 +1809,10 @@
          func(array, callback, null);
        }

-        if (useStrict) {
+        if (expected === null) {
          deepEqual(thisArg, null, message);
        } else {
-          equal(thisArg, window, message);
+          equal(thisArg, expected, message);
        }
      });
    });
--- a/vendor/backbone/backbone.js
+++ b/vendor/backbone/backbone.js
@@ -183,22 +183,22 @@
  // is automatically generated and assigned for you.
  var Model = Backbone.Model = function(attributes, options) {
    var defaults;
-    attributes || (attributes = {});
+    var attrs = attributes || {};
    if (options && options.collection) this.collection = options.collection;
    if (options && options.parse) attributes = this.parse(attributes);
    if (defaults = _.result(this, 'defaults')) {
-      attributes = _.extend({}, defaults, attributes);
+      attrs = _.extend({}, defaults, attrs);
    }
    this.attributes = {};
    this._escapedAttributes = {};
    this.cid = _.uniqueId('c');
    this.changed = {};
-    this._silent = {};
+    this._changes = {};
    this._pending = {};
-    this.set(attributes, {silent: true});
+    this.set(attrs, {silent: true});
    // Reset change tracking.
    this.changed = {};
-    this._silent = {};
+    this._changes = {};
    this._pending = {};
    this._previousAttributes = _.clone(this.attributes);
    this.initialize.apply(this, arguments);
@@ -210,14 +210,18 @@
    // A hash of attributes whose current and previous value differ.
    changed: null,

-    // A hash of attributes that have silently changed since the last time
-    // `change` was called.  Will become pending attributes on the next call.
-    _silent: null,
+    // A hash of attributes that have changed since the last time `change`
+    // was called.
+    _changes: null,

-    // A hash of attributes that have changed since the last `'change'` event
+    // A hash of attributes that have changed since the last `change` event
    // began.
    _pending: null,

+    // A hash of attributes with the current model state to determine if
+    // a `change` should be recorded within a nested `change` block.
+    _changing : null,
+
    // The default name for the JSON `id` attribute is `"id"`. MongoDB and
    // CouchDB users may want to set this to `"_id"`.
    idAttribute: 'id',
@@ -257,23 +261,22 @@

    // Set a hash of model attributes on the object, firing `"change"` unless
    // you choose to silence it.
-    set: function(key, value, options) {
-      var attrs, attr, val;
+    set: function(attrs, options) {
+      var attr, key, val;
+      if (attrs == null) return this;

      // Handle both `"key", value` and `{key: value}` -style arguments.
-      if (_.isObject(key) || key == null) {
-        attrs = key;
-        options = value;
-      } else {
-        attrs = {};
-        attrs[key] = value;
+      if (!_.isObject(attrs)) {
+        key = attrs;
+        (attrs = {})[key] = options;
+        options = arguments[2];
      }

      // Extract attributes and options.
-      options || (options = {});
-      if (!attrs) return this;
+      var silent = options && options.silent;
+      var unset = options && options.unset;
      if (attrs instanceof Model) attrs = attrs.attributes;
-      if (options.unset) for (attr in attrs) attrs[attr] = void 0;
+      if (unset) for (attr in attrs) attrs[attr] = void 0;

      // Run validation.
      if (!this._validate(attrs, options)) return false;
@@ -281,7 +284,7 @@
      // Check for changes of `id`.
      if (this.idAttribute in attrs) this.id = attrs[this.idAttribute];

-      var changes = options.changes = {};
+      var changing = this._changing;
      var now = this.attributes;
      var escaped = this._escapedAttributes;
      var prev = this._previousAttributes || {};
@@ -291,27 +294,30 @@
        val = attrs[attr];

        // If the new and current value differ, record the change.
-        if (!_.isEqual(now[attr], val) || (options.unset && _.has(now, attr))) {
+        if (!_.isEqual(now[attr], val) || (unset && _.has(now, attr))) {
          delete escaped[attr];
-          (options.silent ? this._silent : changes)[attr] = true;
+          this._changes[attr] = true;
        }

        // Update or delete the current value.
-        options.unset ? delete now[attr] : now[attr] = val;
+        unset ? delete now[attr] : now[attr] = val;

        // If the new and previous value differ, record the change.  If not,
        // then remove changes for this attribute.
        if (!_.isEqual(prev[attr], val) || (_.has(now, attr) !== _.has(prev, attr))) {
          this.changed[attr] = val;
-          if (!options.silent) this._pending[attr] = true;
+          if (!silent) this._pending[attr] = true;
        } else {
          delete this.changed[attr];
          delete this._pending[attr];
+          if (!changing) delete this._changes[attr];
        }
+
+        if (changing && _.isEqual(now[attr], changing[attr])) delete this._changes[attr];
      }

      // Fire the `"change"` events.
-      if (!options.silent) this.change(options);
+      if (!silent) this.change(options);
      return this;
    },

@@ -346,16 +352,14 @@
    // Set a hash of model attributes, and sync the model to the server.
    // If the server returns an attributes hash that differs, the model's
    // state will be `set` again.
-    save: function(key, value, options) {
-      var attrs, current, done;
+    save: function(attrs, options) {
+      var key, current, done;

-      // Handle both `("key", value)` and `({key: value})` -style calls.
-      if (_.isObject(key) || key == null) {
-        attrs = key;
-        options = value;
-      } else {
-        attrs = {};
-        attrs[key] = value;
+      // Handle both `"key", value` and `{key: value}` -style arguments.
+      if (attrs != null && !_.isObject(attrs)) {
+        key = attrs;
+        (attrs = {})[key] = options;
+        options = arguments[2];
      }
      options = options ? _.clone(options) : {};

@@ -372,7 +376,7 @@
      }

      // Do not persist invalid models.
-      if (!attrs && !this.isValid()) return false;
+      if (!attrs && !this._validate(null, options)) return false;

      // After a successful server-side save, the client is (optionally)
      // updated with the server-side state.
@@ -455,18 +459,25 @@
    // a `"change:attribute"` event for each changed attribute.
    // Calling this will cause all objects observing the model to update.
    change: function(options) {
-      options || (options = {});
      var changing = this._changing;
-      this._changing = true;
+      var current = this._changing = {};

      // Silent changes become pending changes.
-      for (var attr in this._silent) this._pending[attr] = true;
+      for (var attr in this._changes) this._pending[attr] = true;

-      // Silent changes are triggered.
-      var changes = _.extend({}, options.changes, this._silent);
-      this._silent = {};
+      // Trigger 'change:attr' for any new or silent changes.
+      var changes = this._changes;
+      this._changes = {};
+
+      // Set the correct state for this._changing values
+      var triggers = [];
      for (var attr in changes) {
-        this.trigger('change:' + attr, this, this.get(attr), options);
+        current[attr] = this.get(attr);
+        triggers.push(attr);
+      }
+
+      for (var i=0, l=triggers.length; i < l; i++) {
+        this.trigger('change:' + triggers[i], this, current[triggers[i]], options);
      }
      if (changing) return this;

@@ -476,13 +487,13 @@
        this.trigger('change', this, options);
        // Pending and silent changes still remain.
        for (var attr in this.changed) {
-          if (this._pending[attr] || this._silent[attr]) continue;
+          if (this._pending[attr] || this._changes[attr]) continue;
          delete this.changed[attr];
        }
        this._previousAttributes = _.clone(this.attributes);
      }

-      this._changing = false;
+      this._changing = null;
      return this;
    },

@@ -532,7 +543,7 @@
    // returning `true` if all is well. If a specific `error` callback has
    // been passed, call that instead of firing the general `"error"` event.
    _validate: function(attrs, options) {
-      if (options.silent || !this.validate) return true;
+      if (options && options.silent || !this.validate) return true;
      attrs = _.extend({}, this.attributes, attrs);
      var error = this.validate(attrs, options);
      if (!error) return true;
@@ -894,9 +905,10 @@

  // Cached regular expressions for matching named param parts and splatted
  // parts of route strings.
+  var optionalParam = /\((.*?)\)/g;
  var namedParam    = /:\w+/g;
  var splatParam    = /\*\w+/g;
-  var escapeRegExp  = /[-[\]{}()+?.,\\^$|#\s]/g;
+  var escapeRegExp  = /[-{}[\]+?.,\\^$|#\s]/g;

  // Set up all inheritable **Backbone.Router** properties and methods.
  _.extend(Router.prototype, Events, {
@@ -947,6 +959,7 @@
    // against the current location hash.
    _routeToRegExp: function(route) {
      route = route.replace(escapeRegExp, '\\$&')
+                   .replace(optionalParam, '(?:$1)?')
                   .replace(namedParam, '([^\/]+)')
                   .replace(splatParam, '(.*?)');
      return new RegExp('^' + route + '$');
@@ -1059,7 +1072,7 @@
      // opened by a non-pushState browser.
      this.fragment = fragment;
      var loc = this.location;
-      var atRoot = (loc.pathname.replace(/[^/]$/, '$&/') === this.root) && !loc.search;
+      var atRoot = loc.pathname.replace(/[^\/]$/, '$&/') === this.root;

      // If we've started off with a route from a `pushState`-enabled browser,
      // but we're currently in a browser that doesn't support it...
@@ -1073,7 +1086,7 @@
      // in a browser where it could be `pushState`-based instead...
      } else if (this._wantsPushState && this._hasPushState && atRoot && loc.hash) {
        this.fragment = this.getHash().replace(routeStripper, '');
-        this.history.replaceState({}, document.title, this.root + this.fragment);
+        this.history.replaceState({}, document.title, this.root + this.fragment + loc.search);
      }

      if (!this.options.silent) return this.loadUrl();
@@ -1320,7 +1333,7 @@
        if (this.className) attrs['class'] = _.result(this, 'className');
        this.setElement(this.make(_.result(this, 'tagName'), attrs), false);
      } else {
-        this.setElement(this.el, false);
+        this.setElement(_.result(this, 'el'), false);
      }
    }

@@ -1435,9 +1448,12 @@
      child = function(){ parent.apply(this, arguments); };
    }

+    // Add static properties to the constructor function, if supplied.
+    _.extend(child, parent, staticProps);
+
    // Set the prototype chain to inherit from `parent`, without calling
    // `parent`'s constructor function.
-    function Surrogate(){ this.constructor = child; };
+    var Surrogate = function(){ this.constructor = child; };
    Surrogate.prototype = parent.prototype;
    child.prototype = new Surrogate;

@@ -1445,9 +1461,6 @@
    // if supplied.
    if (protoProps) _.extend(child.prototype, protoProps);

-    // Add static properties to the constructor function, if supplied.
-    _.extend(child, parent, staticProps);
-
    // Set a convenience property in case the parent's prototype is needed
    // later.
    child.__super__ = parent.prototype;
--- a/vendor/backbone/test/model.js
+++ b/vendor/backbone/test/model.js
@@ -740,9 +740,9 @@ $(document).ready(function() {
      model.set({b: 2}, {silent: true});
    });
    model.set({b: 0});
-    deepEqual(changes, [0, 1, 1]);
+    deepEqual(changes, [0, 1]);
    model.change();
-    deepEqual(changes, [0, 1, 1, 2, 1]);
+    deepEqual(changes, [0, 1, 2, 1]);
  });

  test("nested set multiple times", 1, function() {
@@ -816,4 +816,66 @@ $(document).ready(function() {
    strictEqual(model.save(), false);
  });

+  test("#1377 - Save without attrs triggers 'error'.", 1, function() {
+    var Model = Backbone.Model.extend({
+      url: '/test/',
+      sync: function(method, model, options){ options.success(); },
+      validate: function(){ return 'invalid'; }
+    });
+    var model = new Model({id: 1});
+    model.on('error', function(){ ok(true); });
+    model.save();
+  });
+
+  test("#1545 - `undefined` can be passed to a model constructor without coersion", function() {
+    var Model = Backbone.Model.extend({
+      defaults: { one: 1 },
+      initialize : function(attrs, opts) {
+        equal(attrs, undefined);
+      }
+    });
+    var emptyattrs = new Model();
+    var undefinedattrs = new Model(undefined);
+  });
+
+  asyncTest("#1478 - Model `save` does not trigger change on unchanged attributes", 0, function() {
+    var Model = Backbone.Model.extend({
+      sync: function(method, model, options) {
+        setTimeout(function(){
+          options.success();
+          start();
+        }, 0);
+      }
+    });
+    new Model({x: true})
+    .on('change:x', function(){ ok(false); })
+    .save(null, {wait: true});
+  });
+
+  test("#1664 - Changing from one value, silently to another, back to original does not trigger change.", 0, function() {
+    var model = new Backbone.Model({x:1});
+    model.on('change:x', function() { ok(false); });
+    model.set({x:2},{silent:true});
+    model.set({x:3},{silent:true});
+    model.set({x:1});
+  });
+
+  test("#1664 - multiple silent changes nested inside a change event", 2, function() {
+    var changes = [];
+    var model = new Backbone.Model();
+    model.on('change', function() {
+      model.set({a:'c'}, {silent:true});
+      model.set({b:2}, {silent:true});
+      model.unset('c', {silent:true});
+      model.set({a:'a'}, {silent:true});
+      model.set({b:1}, {silent:true});
+      model.set({c:'item'}, {silent:true});
+    });
+    model.on('change:a change:b change:c', function(model, val) { changes.push(val); });
+    model.set({a:'a', b:1, c:'item'});
+    deepEqual(changes, ['a',1,'item']);
+    model.change();
+    deepEqual(changes, ['a',1,'item']);
+  });
+
 });
--- a/vendor/backbone/test/router.js
+++ b/vendor/backbone/test/router.js
@@ -69,6 +69,7 @@ $(document).ready(function() {
      "contacts":                   "contacts",
      "contacts/new":               "newContact",
      "contacts/:id":               "loadContact",
+      "optional(/:item)":           "optionalItem",
      "splat/*args/end":            "splat",
      "*first/complex-:part/*rest": "complex",
      ":entity?*args":              "query",
@@ -105,6 +106,10 @@ $(document).ready(function() {
      this.contact = 'load';
    },

+    optionalItem: function(arg){
+      this.arg = arg !== undefined ? arg : null;
+    },
+
    splat : function(args) {
      this.args = args;
    },
@@ -199,6 +204,15 @@ $(document).ready(function() {
    equal(router.args, 'long-list/of/splatted_99args');
  });

+  test("routes (optional)", 2, function() {
+    location.replace('http://example.com#optional');
+    Backbone.history.checkUrl();
+    equal(router.arg, null);
+    location.replace('http://example.com#optional/thing');
+    Backbone.history.checkUrl();
+    equal(router.arg, 'thing');
+  });
+
  test("routes (complex)", 3, function() {
    location.replace('http://example.com#one/two/three/complex-part/four/five/six/seven');
    Backbone.history.checkUrl();
@@ -449,4 +463,22 @@ $(document).ready(function() {
    });
  });

+  test("#1695 - hashChange to pushState with search.", 1, function() {
+    Backbone.history.stop();
+    location.replace('http://example.com/root?a=b#x/y');
+    Backbone.history = _.extend(new Backbone.History, {
+      location: location,
+      history: {
+        pushState: function(){},
+        replaceState: function(state, title, url){
+          strictEqual(url, '/root/x/y?a=b');
+        }
+      }
+    });
+    Backbone.history.start({
+      root: 'root',
+      pushState: true
+    });
+  });
+
 });
--- a/vendor/backbone/test/view.js
+++ b/vendor/backbone/test/view.js
@@ -312,4 +312,15 @@ $(document).ready(function() {
    view.remove();
  });

+  test("Provide function for el.", 1, function() {
+    var View = Backbone.View.extend({
+      el: function() {
+        return "<p><a></a></p>";
+      }
+    });
+
+    var view = new View;
+    ok(view.$el.is('p:has(a)'));
+  });
+
 });
--- a/vendor/underscore/underscore-min.js
+++ b/vendor/underscore/underscore-min.js
--- a/vendor/underscore/underscore.js
+++ b/vendor/underscore/underscore.js
@@ -1,4 +1,4 @@
-//     Underscore.js 1.4.0
+//     Underscore.js 1.4.1
 //     http://underscorejs.org
 //     (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc.
 //     Underscore may be freely distributed under the MIT license.
@@ -65,7 +65,7 @@
  }

  // Current version.
-  _.VERSION = '1.4.0';
+  _.VERSION = '1.4.1';

  // Collection Functions
  // --------------------
Author	SHA1	Message	Date
John-David Dalton	6e9cbccde6	Bump to v0.8.1. Former-commit-id: 1b63f03d4a7ca0cdc66e44cd987fddecaf88f9ce	2012-10-04 01:40:17 -07:00
John-David Dalton	a0cb8ec124	Cleanup lodash.js. Former-commit-id: 7a2443719a96b36ae53b2f7d0fe2a1867d650f02	2012-10-04 00:28:45 -07:00
John-David Dalton	21217dfda3	Reduce `createIterator`. Former-commit-id: 8c27ca8e4d1f71b2727dd988bc62194510a850dc	2012-10-04 00:02:43 -07:00
John-David Dalton	25ba18e570	Update vendors. Former-commit-id: 94bb6b8541c223d3ef6eb8aad5fb5925f2d3be48	2012-10-03 23:21:51 -07:00
John-David Dalton	a210377f35	Add unit tests for passing falsey values to `_.initial` and `_.rest`. Former-commit-id: 9d5d4960c175a3dd90af977b605ce309bc6446d3	2012-10-03 20:12:03 -07:00
John-David Dalton	07b9ca457f	Cleanup build.js regexes. Former-commit-id: 0d23053cd8ae20fa2268ba24b15db72c6cd7a85e	2012-10-03 09:09:40 -07:00
John-David Dalton	5f1372d39c	Rebuild minified files and docs. Former-commit-id: d8d8453fa79ab026be0acd44a1af967bdb0bc4cc	2012-10-03 09:09:20 -07:00
John-David Dalton	01b84c79f0	Revert removing falsey guards. Former-commit-id: b5eeb5d4a0896eb030f20e7e91e54bf101535abc	2012-10-03 09:08:51 -07:00
John-David Dalton	4017443b1e	Allow deep clone if requested via `include` or `plus` with the `underscore` build. Former-commit-id: e86dba41f7265700330e57346a112b578873b390	2012-10-02 21:39:18 -07:00
John-David Dalton	fd2a17d244	Reduce `lodash.underscore.min.js`. Former-commit-id: a5032bc542e1166fab6acfd7313c305dd8236d36	2012-10-02 01:43:49 -07:00
John-David Dalton	126804f7c3	Cleanup `_.difference`, `_.intersecton`, `_.without`. Former-commit-id: 1ca8edb52a1c403fc2d8a8e1b3fd113ced9ff39e	2012-10-02 01:43:30 -07:00