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---
id: docs
layout: docs
title: Lodash Documentation
version: 3.10.1
---
{% raw %}
<div class="toc-container">
<div>
<h2><code>Array</code></h2>
<ul>
<li><a href="#chunk"><code><span class="subtle-punctuation">_.</span>chunk</code></a></li>
<li><a href="#compact"><code><span class="subtle-punctuation">_.</span>compact</code></a></li>
<li><a href="#difference"><code><span class="subtle-punctuation">_.</span>difference</code></a></li>
<li><a href="#drop"><code><span class="subtle-punctuation">_.</span>drop</code></a></li>
<li><a href="#dropRight"><code><span class="subtle-punctuation">_.</span>dropRight</code></a></li>
<li><a href="#dropRightWhile"><code><span class="subtle-punctuation">_.</span>dropRightWhile</code></a></li>
<li><a href="#dropWhile"><code><span class="subtle-punctuation">_.</span>dropWhile</code></a></li>
<li><a href="#fill"><code><span class="subtle-punctuation">_.</span>fill</code></a></li>
<li><a href="#findIndex"><code><span class="subtle-punctuation">_.</span>findIndex</code></a></li>
<li><a href="#findLastIndex"><code><span class="subtle-punctuation">_.</span>findLastIndex</code></a></li>
<li><a href="#first"><code><span class="subtle-punctuation">_.</span>first</code></a></li>
<li><a href="#flatten"><code><span class="subtle-punctuation">_.</span>flatten</code></a></li>
<li><a href="#flattenDeep"><code><span class="subtle-punctuation">_.</span>flattenDeep</code></a></li>
<li><a href="#first" class="alias"><code><span class="subtle-punctuation">_.</span>head</code> -> <code>first</code></a></li>
<li><a href="#indexOf"><code><span class="subtle-punctuation">_.</span>indexOf</code></a></li>
<li><a href="#initial"><code><span class="subtle-punctuation">_.</span>initial</code></a></li>
<li><a href="#intersection"><code><span class="subtle-punctuation">_.</span>intersection</code></a></li>
<li><a href="#last"><code><span class="subtle-punctuation">_.</span>last</code></a></li>
<li><a href="#lastIndexOf"><code><span class="subtle-punctuation">_.</span>lastIndexOf</code></a></li>
<li><a href="#zipObject" class="alias"><code><span class="subtle-punctuation">_.</span>object</code> -> <code>zipObject</code></a></li>
<li><a href="#pull"><code><span class="subtle-punctuation">_.</span>pull</code></a></li>
<li><a href="#pullAt"><code><span class="subtle-punctuation">_.</span>pullAt</code></a></li>
<li><a href="#remove"><code><span class="subtle-punctuation">_.</span>remove</code></a></li>
<li><a href="#rest"><code><span class="subtle-punctuation">_.</span>rest</code></a></li>
<li><a href="#slice"><code><span class="subtle-punctuation">_.</span>slice</code></a></li>
<li><a href="#sortedIndex"><code><span class="subtle-punctuation">_.</span>sortedIndex</code></a></li>
<li><a href="#sortedLastIndex"><code><span class="subtle-punctuation">_.</span>sortedLastIndex</code></a></li>
<li><a href="#rest" class="alias"><code><span class="subtle-punctuation">_.</span>tail</code> -> <code>rest</code></a></li>
<li><a href="#take"><code><span class="subtle-punctuation">_.</span>take</code></a></li>
<li><a href="#takeRight"><code><span class="subtle-punctuation">_.</span>takeRight</code></a></li>
<li><a href="#takeRightWhile"><code><span class="subtle-punctuation">_.</span>takeRightWhile</code></a></li>
<li><a href="#takeWhile"><code><span class="subtle-punctuation">_.</span>takeWhile</code></a></li>
<li><a href="#union"><code><span class="subtle-punctuation">_.</span>union</code></a></li>
<li><a href="#uniq"><code><span class="subtle-punctuation">_.</span>uniq</code></a></li>
<li><a href="#uniq" class="alias"><code><span class="subtle-punctuation">_.</span>unique</code> -> <code>uniq</code></a></li>
<li><a href="#unzip"><code><span class="subtle-punctuation">_.</span>unzip</code></a></li>
<li><a href="#unzipWith"><code><span class="subtle-punctuation">_.</span>unzipWith</code></a></li>
<li><a href="#without"><code><span class="subtle-punctuation">_.</span>without</code></a></li>
<li><a href="#xor"><code><span class="subtle-punctuation">_.</span>xor</code></a></li>
<li><a href="#zip"><code><span class="subtle-punctuation">_.</span>zip</code></a></li>
<li><a href="#zipObject"><code><span class="subtle-punctuation">_.</span>zipObject</code></a></li>
<li><a href="#zipWith"><code><span class="subtle-punctuation">_.</span>zipWith</code></a></li>
</ul>
</div>
<div>
<h2><code>Chain</code></h2>
<ul>
<li><a href="#lodash"><code>_</code></a></li>
<li><a href="#chain"><code><span class="subtle-punctuation">_.</span>chain</code></a></li>
<li><a href="#tap"><code><span class="subtle-punctuation">_.</span>tap</code></a></li>
<li><a href="#thru"><code><span class="subtle-punctuation">_.</span>thru</code></a></li>
<li><a href="#prototype-chain"><code><span class="subtle-punctuation">_.</span>prototype.chain</code></a></li>
<li><a href="#prototype-commit"><code><span class="subtle-punctuation">_.</span>prototype.commit</code></a></li>
<li><a href="#prototype-concat"><code><span class="subtle-punctuation">_.</span>prototype.concat</code></a></li>
<li><a href="#prototype-plant"><code><span class="subtle-punctuation">_.</span>prototype.plant</code></a></li>
<li><a href="#prototype-reverse"><code><span class="subtle-punctuation">_.</span>prototype.reverse</code></a></li>
<li><a href="#prototype-value" class="alias"><code><span class="subtle-punctuation">_.</span>prototype.run</code> -> <code>value</code></a></li>
<li><a href="#prototype-value" class="alias"><code><span class="subtle-punctuation">_.</span>prototype.toJSON</code> -> <code>value</code></a></li>
<li><a href="#prototype-toString"><code><span class="subtle-punctuation">_.</span>prototype.toString</code></a></li>
<li><a href="#prototype-value"><code><span class="subtle-punctuation">_.</span>prototype.value</code></a></li>
<li><a href="#prototype-value" class="alias"><code><span class="subtle-punctuation">_.</span>prototype.valueOf</code> -> <code>value</code></a></li>
</ul>
</div>
<div>
<h2><code>Collections</code></h2>
<ul>
<li><a href="#every" class="alias"><code><span class="subtle-punctuation">_.</span>all</code> -> <code>every</code></a></li>
<li><a href="#some" class="alias"><code><span class="subtle-punctuation">_.</span>any</code> -> <code>some</code></a></li>
<li><a href="#at"><code><span class="subtle-punctuation">_.</span>at</code></a></li>
<li><a href="#map" class="alias"><code><span class="subtle-punctuation">_.</span>collect</code> -> <code>map</code></a></li>
<li><a href="#includes" class="alias"><code><span class="subtle-punctuation">_.</span>contains</code> -> <code>includes</code></a></li>
<li><a href="#countBy"><code><span class="subtle-punctuation">_.</span>countBy</code></a></li>
<li><a href="#find" class="alias"><code><span class="subtle-punctuation">_.</span>detect</code> -> <code>find</code></a></li>
<li><a href="#forEach" class="alias"><code><span class="subtle-punctuation">_.</span>each</code> -> <code>forEach</code></a></li>
<li><a href="#forEachRight" class="alias"><code><span class="subtle-punctuation">_.</span>eachRight</code> -> <code>forEachRight</code></a></li>
<li><a href="#every"><code><span class="subtle-punctuation">_.</span>every</code></a></li>
<li><a href="#filter"><code><span class="subtle-punctuation">_.</span>filter</code></a></li>
<li><a href="#find"><code><span class="subtle-punctuation">_.</span>find</code></a></li>
<li><a href="#findLast"><code><span class="subtle-punctuation">_.</span>findLast</code></a></li>
<li><a href="#findWhere"><code><span class="subtle-punctuation">_.</span>findWhere</code></a></li>
<li><a href="#reduce" class="alias"><code><span class="subtle-punctuation">_.</span>foldl</code> -> <code>reduce</code></a></li>
<li><a href="#reduceRight" class="alias"><code><span class="subtle-punctuation">_.</span>foldr</code> -> <code>reduceRight</code></a></li>
<li><a href="#forEach"><code><span class="subtle-punctuation">_.</span>forEach</code></a></li>
<li><a href="#forEachRight"><code><span class="subtle-punctuation">_.</span>forEachRight</code></a></li>
<li><a href="#groupBy"><code><span class="subtle-punctuation">_.</span>groupBy</code></a></li>
<li><a href="#includes" class="alias"><code><span class="subtle-punctuation">_.</span>include</code> -> <code>includes</code></a></li>
<li><a href="#includes"><code><span class="subtle-punctuation">_.</span>includes</code></a></li>
<li><a href="#indexBy"><code><span class="subtle-punctuation">_.</span>indexBy</code></a></li>
<li><a href="#reduce" class="alias"><code><span class="subtle-punctuation">_.</span>inject</code> -> <code>reduce</code></a></li>
<li><a href="#invoke"><code><span class="subtle-punctuation">_.</span>invoke</code></a></li>
<li><a href="#map"><code><span class="subtle-punctuation">_.</span>map</code></a></li>
<li><a href="#partition"><code><span class="subtle-punctuation">_.</span>partition</code></a></li>
<li><a href="#pluck"><code><span class="subtle-punctuation">_.</span>pluck</code></a></li>
<li><a href="#reduce"><code><span class="subtle-punctuation">_.</span>reduce</code></a></li>
<li><a href="#reduceRight"><code><span class="subtle-punctuation">_.</span>reduceRight</code></a></li>
<li><a href="#reject"><code><span class="subtle-punctuation">_.</span>reject</code></a></li>
<li><a href="#sample"><code><span class="subtle-punctuation">_.</span>sample</code></a></li>
<li><a href="#filter" class="alias"><code><span class="subtle-punctuation">_.</span>select</code> -> <code>filter</code></a></li>
<li><a href="#shuffle"><code><span class="subtle-punctuation">_.</span>shuffle</code></a></li>
<li><a href="#size"><code><span class="subtle-punctuation">_.</span>size</code></a></li>
<li><a href="#some"><code><span class="subtle-punctuation">_.</span>some</code></a></li>
<li><a href="#sortBy"><code><span class="subtle-punctuation">_.</span>sortBy</code></a></li>
<li><a href="#sortByAll"><code><span class="subtle-punctuation">_.</span>sortByAll</code></a></li>
<li><a href="#sortByOrder"><code><span class="subtle-punctuation">_.</span>sortByOrder</code></a></li>
<li><a href="#where"><code><span class="subtle-punctuation">_.</span>where</code></a></li>
</ul>
</div>
<div>
<h2><code>Date</code></h2>
<ul>
<li><a href="#now"><code><span class="subtle-punctuation">_.</span>now</code></a></li>
</ul>
</div>
<div>
<h2><code>Function</code></h2>
<ul>
<li><a href="#after"><code><span class="subtle-punctuation">_.</span>after</code></a></li>
<li><a href="#ary"><code><span class="subtle-punctuation">_.</span>ary</code></a></li>
<li><a href="#flowRight" class="alias"><code><span class="subtle-punctuation">_.</span>backflow</code> -> <code>flowRight</code></a></li>
<li><a href="#before"><code><span class="subtle-punctuation">_.</span>before</code></a></li>
<li><a href="#bind"><code><span class="subtle-punctuation">_.</span>bind</code></a></li>
<li><a href="#bindAll"><code><span class="subtle-punctuation">_.</span>bindAll</code></a></li>
<li><a href="#bindKey"><code><span class="subtle-punctuation">_.</span>bindKey</code></a></li>
<li><a href="#flowRight" class="alias"><code><span class="subtle-punctuation">_.</span>compose</code> -> <code>flowRight</code></a></li>
<li><a href="#curry"><code><span class="subtle-punctuation">_.</span>curry</code></a></li>
<li><a href="#curryRight"><code><span class="subtle-punctuation">_.</span>curryRight</code></a></li>
<li><a href="#debounce"><code><span class="subtle-punctuation">_.</span>debounce</code></a></li>
<li><a href="#defer"><code><span class="subtle-punctuation">_.</span>defer</code></a></li>
<li><a href="#delay"><code><span class="subtle-punctuation">_.</span>delay</code></a></li>
<li><a href="#flow"><code><span class="subtle-punctuation">_.</span>flow</code></a></li>
<li><a href="#flowRight"><code><span class="subtle-punctuation">_.</span>flowRight</code></a></li>
<li><a href="#memoize"><code><span class="subtle-punctuation">_.</span>memoize</code></a></li>
<li><a href="#modArgs"><code><span class="subtle-punctuation">_.</span>modArgs</code></a></li>
<li><a href="#negate"><code><span class="subtle-punctuation">_.</span>negate</code></a></li>
<li><a href="#once"><code><span class="subtle-punctuation">_.</span>once</code></a></li>
<li><a href="#partial"><code><span class="subtle-punctuation">_.</span>partial</code></a></li>
<li><a href="#partialRight"><code><span class="subtle-punctuation">_.</span>partialRight</code></a></li>
<li><a href="#rearg"><code><span class="subtle-punctuation">_.</span>rearg</code></a></li>
<li><a href="#restParam"><code><span class="subtle-punctuation">_.</span>restParam</code></a></li>
<li><a href="#spread"><code><span class="subtle-punctuation">_.</span>spread</code></a></li>
<li><a href="#throttle"><code><span class="subtle-punctuation">_.</span>throttle</code></a></li>
<li><a href="#wrap"><code><span class="subtle-punctuation">_.</span>wrap</code></a></li>
</ul>
</div>
<div>
<h2><code>Lang</code></h2>
<ul>
<li><a href="#clone"><code><span class="subtle-punctuation">_.</span>clone</code></a></li>
<li><a href="#cloneDeep"><code><span class="subtle-punctuation">_.</span>cloneDeep</code></a></li>
<li><a href="#isEqual" class="alias"><code><span class="subtle-punctuation">_.</span>eq</code> -> <code>isEqual</code></a></li>
<li><a href="#gt"><code><span class="subtle-punctuation">_.</span>gt</code></a></li>
<li><a href="#gte"><code><span class="subtle-punctuation">_.</span>gte</code></a></li>
<li><a href="#isArguments"><code><span class="subtle-punctuation">_.</span>isArguments</code></a></li>
<li><a href="#isArray"><code><span class="subtle-punctuation">_.</span>isArray</code></a></li>
<li><a href="#isBoolean"><code><span class="subtle-punctuation">_.</span>isBoolean</code></a></li>
<li><a href="#isDate"><code><span class="subtle-punctuation">_.</span>isDate</code></a></li>
<li><a href="#isElement"><code><span class="subtle-punctuation">_.</span>isElement</code></a></li>
<li><a href="#isEmpty"><code><span class="subtle-punctuation">_.</span>isEmpty</code></a></li>
<li><a href="#isEqual"><code><span class="subtle-punctuation">_.</span>isEqual</code></a></li>
<li><a href="#isError"><code><span class="subtle-punctuation">_.</span>isError</code></a></li>
<li><a href="#isFinite"><code><span class="subtle-punctuation">_.</span>isFinite</code></a></li>
<li><a href="#isFunction"><code><span class="subtle-punctuation">_.</span>isFunction</code></a></li>
<li><a href="#isMatch"><code><span class="subtle-punctuation">_.</span>isMatch</code></a></li>
<li><a href="#isNaN"><code><span class="subtle-punctuation">_.</span>isNaN</code></a></li>
<li><a href="#isNative"><code><span class="subtle-punctuation">_.</span>isNative</code></a></li>
<li><a href="#isNull"><code><span class="subtle-punctuation">_.</span>isNull</code></a></li>
<li><a href="#isNumber"><code><span class="subtle-punctuation">_.</span>isNumber</code></a></li>
<li><a href="#isObject"><code><span class="subtle-punctuation">_.</span>isObject</code></a></li>
<li><a href="#isPlainObject"><code><span class="subtle-punctuation">_.</span>isPlainObject</code></a></li>
<li><a href="#isRegExp"><code><span class="subtle-punctuation">_.</span>isRegExp</code></a></li>
<li><a href="#isString"><code><span class="subtle-punctuation">_.</span>isString</code></a></li>
<li><a href="#isTypedArray"><code><span class="subtle-punctuation">_.</span>isTypedArray</code></a></li>
<li><a href="#isUndefined"><code><span class="subtle-punctuation">_.</span>isUndefined</code></a></li>
<li><a href="#lt"><code><span class="subtle-punctuation">_.</span>lt</code></a></li>
<li><a href="#lte"><code><span class="subtle-punctuation">_.</span>lte</code></a></li>
<li><a href="#toArray"><code><span class="subtle-punctuation">_.</span>toArray</code></a></li>
<li><a href="#toPlainObject"><code><span class="subtle-punctuation">_.</span>toPlainObject</code></a></li>
</ul>
</div>
<div>
<h2><code>Math</code></h2>
<ul>
<li><a href="#add"><code><span class="subtle-punctuation">_.</span>add</code></a></li>
<li><a href="#ceil"><code><span class="subtle-punctuation">_.</span>ceil</code></a></li>
<li><a href="#floor"><code><span class="subtle-punctuation">_.</span>floor</code></a></li>
<li><a href="#max"><code><span class="subtle-punctuation">_.</span>max</code></a></li>
<li><a href="#min"><code><span class="subtle-punctuation">_.</span>min</code></a></li>
<li><a href="#round"><code><span class="subtle-punctuation">_.</span>round</code></a></li>
<li><a href="#sum"><code><span class="subtle-punctuation">_.</span>sum</code></a></li>
</ul>
</div>
<div>
<h2><code>Number</code></h2>
<ul>
<li><a href="#inRange"><code><span class="subtle-punctuation">_.</span>inRange</code></a></li>
<li><a href="#random"><code><span class="subtle-punctuation">_.</span>random</code></a></li>
</ul>
</div>
<div>
<h2><code>Object</code></h2>
<ul>
<li><a href="#assign"><code><span class="subtle-punctuation">_.</span>assign</code></a></li>
<li><a href="#create"><code><span class="subtle-punctuation">_.</span>create</code></a></li>
<li><a href="#defaults"><code><span class="subtle-punctuation">_.</span>defaults</code></a></li>
<li><a href="#defaultsDeep"><code><span class="subtle-punctuation">_.</span>defaultsDeep</code></a></li>
<li><a href="#assign" class="alias"><code><span class="subtle-punctuation">_.</span>extend</code> -> <code>assign</code></a></li>
<li><a href="#findKey"><code><span class="subtle-punctuation">_.</span>findKey</code></a></li>
<li><a href="#findLastKey"><code><span class="subtle-punctuation">_.</span>findLastKey</code></a></li>
<li><a href="#forIn"><code><span class="subtle-punctuation">_.</span>forIn</code></a></li>
<li><a href="#forInRight"><code><span class="subtle-punctuation">_.</span>forInRight</code></a></li>
<li><a href="#forOwn"><code><span class="subtle-punctuation">_.</span>forOwn</code></a></li>
<li><a href="#forOwnRight"><code><span class="subtle-punctuation">_.</span>forOwnRight</code></a></li>
<li><a href="#functions"><code><span class="subtle-punctuation">_.</span>functions</code></a></li>
<li><a href="#get"><code><span class="subtle-punctuation">_.</span>get</code></a></li>
<li><a href="#has"><code><span class="subtle-punctuation">_.</span>has</code></a></li>
<li><a href="#invert"><code><span class="subtle-punctuation">_.</span>invert</code></a></li>
<li><a href="#keys"><code><span class="subtle-punctuation">_.</span>keys</code></a></li>
<li><a href="#keysIn"><code><span class="subtle-punctuation">_.</span>keysIn</code></a></li>
<li><a href="#mapKeys"><code><span class="subtle-punctuation">_.</span>mapKeys</code></a></li>
<li><a href="#mapValues"><code><span class="subtle-punctuation">_.</span>mapValues</code></a></li>
<li><a href="#merge"><code><span class="subtle-punctuation">_.</span>merge</code></a></li>
<li><a href="#functions" class="alias"><code><span class="subtle-punctuation">_.</span>methods</code> -> <code>functions</code></a></li>
<li><a href="#omit"><code><span class="subtle-punctuation">_.</span>omit</code></a></li>
<li><a href="#pairs"><code><span class="subtle-punctuation">_.</span>pairs</code></a></li>
<li><a href="#pick"><code><span class="subtle-punctuation">_.</span>pick</code></a></li>
<li><a href="#result"><code><span class="subtle-punctuation">_.</span>result</code></a></li>
<li><a href="#set"><code><span class="subtle-punctuation">_.</span>set</code></a></li>
<li><a href="#transform"><code><span class="subtle-punctuation">_.</span>transform</code></a></li>
<li><a href="#values"><code><span class="subtle-punctuation">_.</span>values</code></a></li>
<li><a href="#valuesIn"><code><span class="subtle-punctuation">_.</span>valuesIn</code></a></li>
</ul>
</div>
<div>
<h2><code>String</code></h2>
<ul>
<li><a href="#camelCase"><code><span class="subtle-punctuation">_.</span>camelCase</code></a></li>
<li><a href="#capitalize"><code><span class="subtle-punctuation">_.</span>capitalize</code></a></li>
<li><a href="#deburr"><code><span class="subtle-punctuation">_.</span>deburr</code></a></li>
<li><a href="#endsWith"><code><span class="subtle-punctuation">_.</span>endsWith</code></a></li>
<li><a href="#escape"><code><span class="subtle-punctuation">_.</span>escape</code></a></li>
<li><a href="#escapeRegExp"><code><span class="subtle-punctuation">_.</span>escapeRegExp</code></a></li>
<li><a href="#kebabCase"><code><span class="subtle-punctuation">_.</span>kebabCase</code></a></li>
<li><a href="#pad"><code><span class="subtle-punctuation">_.</span>pad</code></a></li>
<li><a href="#padLeft"><code><span class="subtle-punctuation">_.</span>padLeft</code></a></li>
<li><a href="#padRight"><code><span class="subtle-punctuation">_.</span>padRight</code></a></li>
<li><a href="#parseInt"><code><span class="subtle-punctuation">_.</span>parseInt</code></a></li>
<li><a href="#repeat"><code><span class="subtle-punctuation">_.</span>repeat</code></a></li>
<li><a href="#snakeCase"><code><span class="subtle-punctuation">_.</span>snakeCase</code></a></li>
<li><a href="#startCase"><code><span class="subtle-punctuation">_.</span>startCase</code></a></li>
<li><a href="#startsWith"><code><span class="subtle-punctuation">_.</span>startsWith</code></a></li>
<li><a href="#template"><code><span class="subtle-punctuation">_.</span>template</code></a></li>
<li><a href="#trim"><code><span class="subtle-punctuation">_.</span>trim</code></a></li>
<li><a href="#trimLeft"><code><span class="subtle-punctuation">_.</span>trimLeft</code></a></li>
<li><a href="#trimRight"><code><span class="subtle-punctuation">_.</span>trimRight</code></a></li>
<li><a href="#trunc"><code><span class="subtle-punctuation">_.</span>trunc</code></a></li>
<li><a href="#unescape"><code><span class="subtle-punctuation">_.</span>unescape</code></a></li>
<li><a href="#words"><code><span class="subtle-punctuation">_.</span>words</code></a></li>
</ul>
</div>
<div>
<h2><code>Utility</code></h2>
<ul>
<li><a href="#attempt"><code><span class="subtle-punctuation">_.</span>attempt</code></a></li>
<li><a href="#callback"><code><span class="subtle-punctuation">_.</span>callback</code></a></li>
<li><a href="#constant"><code><span class="subtle-punctuation">_.</span>constant</code></a></li>
<li><a href="#identity"><code><span class="subtle-punctuation">_.</span>identity</code></a></li>
<li><a href="#callback" class="alias"><code><span class="subtle-punctuation">_.</span>iteratee</code> -> <code>callback</code></a></li>
<li><a href="#matches"><code><span class="subtle-punctuation">_.</span>matches</code></a></li>
<li><a href="#matchesProperty"><code><span class="subtle-punctuation">_.</span>matchesProperty</code></a></li>
<li><a href="#method"><code><span class="subtle-punctuation">_.</span>method</code></a></li>
<li><a href="#methodOf"><code><span class="subtle-punctuation">_.</span>methodOf</code></a></li>
<li><a href="#mixin"><code><span class="subtle-punctuation">_.</span>mixin</code></a></li>
<li><a href="#noConflict"><code><span class="subtle-punctuation">_.</span>noConflict</code></a></li>
<li><a href="#noop"><code><span class="subtle-punctuation">_.</span>noop</code></a></li>
<li><a href="#property"><code><span class="subtle-punctuation">_.</span>property</code></a></li>
<li><a href="#propertyOf"><code><span class="subtle-punctuation">_.</span>propertyOf</code></a></li>
<li><a href="#range"><code><span class="subtle-punctuation">_.</span>range</code></a></li>
<li><a href="#runInContext"><code><span class="subtle-punctuation">_.</span>runInContext</code></a></li>
<li><a href="#times"><code><span class="subtle-punctuation">_.</span>times</code></a></li>
<li><a href="#uniqueId"><code><span class="subtle-punctuation">_.</span>uniqueId</code></a></li>
</ul>
</div>
<div>
<h2><code>Properties</code></h2>
<ul>
<li><a href="#VERSION"><code><span class="subtle-punctuation">_.</span>VERSION</code></a></li>
<li><a href="#support"><code><span class="subtle-punctuation">_.</span>support</code></a></li>
<li><a href="#templateSettings"><code><span class="subtle-punctuation">_.</span>templateSettings</code></a></li>
<li><a href="#templateSettings-escape"><code><span class="subtle-punctuation">_.</span>templateSettings.escape</code></a></li>
<li><a href="#templateSettings-evaluate"><code><span class="subtle-punctuation">_.</span>templateSettings.evaluate</code></a></li>
<li><a href="#templateSettings-imports"><code><span class="subtle-punctuation">_.</span>templateSettings.imports</code></a></li>
<li><a href="#templateSettings-imports-_"><code><span class="subtle-punctuation">_.</span>templateSettings.imports._</code></a></li>
<li><a href="#templateSettings-interpolate"><code><span class="subtle-punctuation">_.</span>templateSettings.interpolate</code></a></li>
<li><a href="#templateSettings-variable"><code><span class="subtle-punctuation">_.</span>templateSettings.variable</code></a></li>
</ul>
</div>
</div>
<div class="doc-container">
<div>
<h2><code>“Array” Methods</code></h2>
<div>
<h3 id="chunk"><a href="#chunk" class="fa fa-link"></a><code>_.chunk(array, [size=1])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L4471">source</a> <a href="https://www.npmjs.com/package/lodash.chunk">npm package</a></p>
<p>Creates an array of elements split into groups the length of <code>size</code>.
If <code>collection</code> can't be split evenly, the final chunk will be the remaining
elements.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to process.</li>
<li><code>[size=1]</code> <em>(number)</em>: The length of each chunk.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns the new array containing chunks.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter method">.</span><span class="name">chunk</span>([<span class="string">'a'</span><span class="delimiter">,</span> <span class="string">'b'</span><span class="delimiter">,</span> <span class="string">'c'</span><span class="delimiter">,</span> <span class="string">'d'</span>]<span class="delimiter">,</span> <span class="numeric">2</span>);</div><div><span class="comment">// => [['a', 'b'], ['c', 'd']]</span></div><div> </div><div>_<span class="delimiter method">.</span><span class="name">chunk</span>([<span class="string">'a'</span><span class="delimiter">,</span> <span class="string">'b'</span><span class="delimiter">,</span> <span class="string">'c'</span><span class="delimiter">,</span> <span class="string">'d'</span>]<span class="delimiter">,</span> <span class="numeric">3</span>);</div><div><span class="comment">// => [['a', 'b', 'c'], ['d']]</span></div></pre></div>
</div>
<div>
<h3 id="compact"><a href="#compact" class="fa fa-link"></a><code>_.compact(array)</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L4502">source</a> <a href="https://www.npmjs.com/package/lodash.compact">npm package</a></p>
<p>Creates an array with all falsey values removed. The values <code>false</code>, <code>null</code>,
<code>0</code>, <code>""</code>, <code>undefined</code>, and <code>NaN</code> are falsey.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to compact.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns the new array of filtered values.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter">.</span><span class="support">compact</span>([<span class="numeric">0</span><span class="delimiter">,</span> <span class="numeric">1</span><span class="delimiter">,</span> false<span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="string">''</span><span class="delimiter">,</span> <span class="numeric">3</span>]);</div><div><span class="comment">// => [1, 2, 3]</span></div></pre></div>
</div>
<div>
<h3 id="difference"><a href="#difference" class="fa fa-link"></a><code>_.difference(array, [values])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L4533">source</a> <a href="https://www.npmjs.com/package/lodash.difference">npm package</a></p>
<p>Creates an array of unique <code>array</code> values not included in the other
provided arrays using <a href="http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero"><code>SameValueZero</code></a>
for equality comparisons.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to inspect.</li>
<li><code>[values]</code> <em>(...Array)</em>: The arrays of values to exclude.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns the new array of filtered values.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter method">.</span><span class="name">difference</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]<span class="delimiter">,</span> [<span class="numeric">4</span><span class="delimiter">,</span> <span class="numeric">2</span>]);</div><div><span class="comment">// => [1, 3]</span></div></pre></div>
</div>
<div>
<h3 id="drop"><a href="#drop" class="fa fa-link"></a><code>_.drop(array, [n=1])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L4563">source</a> <a href="https://www.npmjs.com/package/lodash.drop">npm package</a></p>
<p>Creates a slice of <code>array</code> with <code>n</code> elements dropped from the beginning.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to query.</li>
<li><code>[n=1]</code> <em>(number)</em>: The number of elements to drop.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns the slice of <code>array</code>.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter method">.</span><span class="name">drop</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]);</div><div><span class="comment">// => [2, 3]</span></div><div> </div><div>_<span class="delimiter method">.</span><span class="name">drop</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]<span class="delimiter">,</span> <span class="numeric">2</span>);</div><div><span class="comment">// => [3]</span></div><div> </div><div>_<span class="delimiter method">.</span><span class="name">drop</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]<span class="delimiter">,</span> <span class="numeric">5</span>);</div><div><span class="comment">// => []</span></div><div> </div><div>_<span class="delimiter method">.</span><span class="name">drop</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]<span class="delimiter">,</span> <span class="numeric">0</span>);</div><div><span class="comment">// => [1, 2, 3]</span></div></pre></div>
</div>
<div>
<h3 id="dropRight"><a href="#dropRight" class="fa fa-link"></a><code>_.dropRight(array, [n=1])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L4598">source</a> <a href="https://www.npmjs.com/package/lodash.dropright">npm package</a></p>
<p>Creates a slice of <code>array</code> with <code>n</code> elements dropped from the end.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to query.</li>
<li><code>[n=1]</code> <em>(number)</em>: The number of elements to drop.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns the slice of <code>array</code>.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter method">.</span><span class="name">dropRight</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]);</div><div><span class="comment">// => [1, 2]</span></div><div> </div><div>_<span class="delimiter method">.</span><span class="name">dropRight</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]<span class="delimiter">,</span> <span class="numeric">2</span>);</div><div><span class="comment">// => [1]</span></div><div> </div><div>_<span class="delimiter method">.</span><span class="name">dropRight</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]<span class="delimiter">,</span> <span class="numeric">5</span>);</div><div><span class="comment">// => []</span></div><div> </div><div>_<span class="delimiter method">.</span><span class="name">dropRight</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]<span class="delimiter">,</span> <span class="numeric">0</span>);</div><div><span class="comment">// => [1, 2, 3]</span></div></pre></div>
</div>
<div>
<h3 id="dropRightWhile"><a href="#dropRightWhile" class="fa fa-link"></a><code>_.dropRightWhile(array, [predicate=_.identity], [thisArg])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L4659">source</a> <a href="https://www.npmjs.com/package/lodash.droprightwhile">npm package</a></p>
<p>Creates a slice of <code>array</code> excluding elements dropped from the end.
Elements are dropped until <code>predicate</code> returns falsey. The predicate is
bound to <code>thisArg</code> and invoked with three arguments: <em>(value, index, array)</em>.
<br>
<br>
If a property name is provided for <code>predicate</code> the created <a href="#property"><code>_.property</code></a>
style callback returns the property value of the given element.
<br>
<br>
If a value is also provided for <code>thisArg</code> the created <a href="#matchesProperty"><code>_.matchesProperty</code></a>
style callback returns <code>true</code> for elements that have a matching property
value, else <code>false</code>.
<br>
<br>
If an object is provided for <code>predicate</code> the created <a href="#matches"><code>_.matches</code></a> style
callback returns <code>true</code> for elements that match the properties of the given
object, else <code>false</code>.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to query.</li>
<li><code>[predicate=_.identity]</code> <em>(Function|Object|string)</em>: The function invoked per iteration.</li>
<li><code>[thisArg]</code> <em>(*)</em>: The <code>this</code> binding of <code>predicate</code>.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns the slice of <code>array</code>.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter method">.</span><span class="name">dropRightWhile</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]<span class="delimiter">,</span> <span class="type">function</span>(n) {</div><div>  return n > <span class="numeric">1</span>;</div><div>});</div><div><span class="comment">// => [1]</span></div><div> </div><div><span class="type">var</span> users = [</div><div>  { <span class="string">'user'</span>: <span class="string">'barney'</span><span class="delimiter">,</span>  <span class="string">'active'</span>: true }<span class="delimiter">,</span></div><div>  { <span class="string">'user'</span>: <span class="string">'fred'</span><span class="delimiter">,</span>    <span class="string">'active'</span>: false }<span class="delimiter">,</span></div><div>  { <span class="string">'user'</span>: <span class="string">'pebbles'</span><span class="delimiter">,</span> <span class="string">'active'</span>: false }</div><div>];</div><div> </div><div><span class="comment">// using the `_.matches` callback shorthand</span></div><div>_<span class="delimiter method">.</span><span class="name">pluck</span>(_<span class="delimiter method">.</span><span class="name">dropRightWhile</span>(users<span class="delimiter">,</span> { <span class="string">'user'</span>: <span class="string">'pebbles'</span><span class="delimiter">,</span> <span class="string">'active'</span>: false })<span class="delimiter">,</span> <span class="string">'user'</span>);</div><div><span class="comment">// => ['barney', 'fred']</span></div><div> </div><div><span class="comment">// using the `_.matchesProperty` callback shorthand</span></div><div>_<span class="delimiter method">.</span><span class="name">pluck</span>(_<span class="delimiter method">.</span><span class="name">dropRightWhile</span>(users<span class="delimiter">,</span> <span class="string">'active'</span><span class="delimiter">,</span> false)<span class="delimiter">,</span> <span class="string">'user'</span>);</div><div><span class="comment">// => ['barney']</span></div><div> </div><div><span class="comment">// using the `_.property` callback shorthand</span></div><div>_<span class="delimiter method">.</span><span class="name">pluck</span>(_<span class="delimiter method">.</span><span class="name">dropRightWhile</span>(users<span class="delimiter">,</span> <span class="string">'active'</span>)<span class="delimiter">,</span> <span class="string">'user'</span>);</div><div><span class="comment">// => ['barney', 'fred', 'pebbles']</span></div></pre></div>
</div>
<div>
<h3 id="dropWhile"><a href="#dropWhile" class="fa fa-link"></a><code>_.dropWhile(array, [predicate=_.identity], [thisArg])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L4714">source</a> <a href="https://www.npmjs.com/package/lodash.dropwhile">npm package</a></p>
<p>Creates a slice of <code>array</code> excluding elements dropped from the beginning.
Elements are dropped until <code>predicate</code> returns falsey. The predicate is
bound to <code>thisArg</code> and invoked with three arguments: <em>(value, index, array)</em>.
<br>
<br>
If a property name is provided for <code>predicate</code> the created <a href="#property"><code>_.property</code></a>
style callback returns the property value of the given element.
<br>
<br>
If a value is also provided for <code>thisArg</code> the created <a href="#matchesProperty"><code>_.matchesProperty</code></a>
style callback returns <code>true</code> for elements that have a matching property
value, else <code>false</code>.
<br>
<br>
If an object is provided for <code>predicate</code> the created <a href="#matches"><code>_.matches</code></a> style
callback returns <code>true</code> for elements that have the properties of the given
object, else <code>false</code>.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to query.</li>
<li><code>[predicate=_.identity]</code> <em>(Function|Object|string)</em>: The function invoked per iteration.</li>
<li><code>[thisArg]</code> <em>(*)</em>: The <code>this</code> binding of <code>predicate</code>.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns the slice of <code>array</code>.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter method">.</span><span class="name">dropWhile</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]<span class="delimiter">,</span> <span class="type">function</span>(n) {</div><div>  return n < <span class="numeric">3</span>;</div><div>});</div><div><span class="comment">// => [3]</span></div><div> </div><div><span class="type">var</span> users = [</div><div>  { <span class="string">'user'</span>: <span class="string">'barney'</span><span class="delimiter">,</span>  <span class="string">'active'</span>: false }<span class="delimiter">,</span></div><div>  { <span class="string">'user'</span>: <span class="string">'fred'</span><span class="delimiter">,</span>    <span class="string">'active'</span>: false }<span class="delimiter">,</span></div><div>  { <span class="string">'user'</span>: <span class="string">'pebbles'</span><span class="delimiter">,</span> <span class="string">'active'</span>: true }</div><div>];</div><div> </div><div><span class="comment">// using the `_.matches` callback shorthand</span></div><div>_<span class="delimiter method">.</span><span class="name">pluck</span>(_<span class="delimiter method">.</span><span class="name">dropWhile</span>(users<span class="delimiter">,</span> { <span class="string">'user'</span>: <span class="string">'barney'</span><span class="delimiter">,</span> <span class="string">'active'</span>: false })<span class="delimiter">,</span> <span class="string">'user'</span>);</div><div><span class="comment">// => ['fred', 'pebbles']</span></div><div> </div><div><span class="comment">// using the `_.matchesProperty` callback shorthand</span></div><div>_<span class="delimiter method">.</span><span class="name">pluck</span>(_<span class="delimiter method">.</span><span class="name">dropWhile</span>(users<span class="delimiter">,</span> <span class="string">'active'</span><span class="delimiter">,</span> false)<span class="delimiter">,</span> <span class="string">'user'</span>);</div><div><span class="comment">// => ['pebbles']</span></div><div> </div><div><span class="comment">// using the `_.property` callback shorthand</span></div><div>_<span class="delimiter method">.</span><span class="name">pluck</span>(_<span class="delimiter method">.</span><span class="name">dropWhile</span>(users<span class="delimiter">,</span> <span class="string">'active'</span>)<span class="delimiter">,</span> <span class="string">'user'</span>);</div><div><span class="comment">// => ['barney', 'fred', 'pebbles']</span></div></pre></div>
</div>
<div>
<h3 id="fill"><a href="#fill" class="fa fa-link"></a><code>_.fill(array, value, [start=0], [end=array.length])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L4748">source</a> <a href="https://www.npmjs.com/package/lodash.fill">npm package</a></p>
<p>Fills elements of <code>array</code> with <code>value</code> from <code>start</code> up to, but not
including, <code>end</code>.
<br>
<br>
<strong>Note:</strong> This method mutates <code>array</code>.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to fill.</li>
<li><code>value</code> <em>(*)</em>: The value to fill <code>array</code> with.</li>
<li><code>[start=0]</code> <em>(number)</em>: The start position.</li>
<li><code>[end=array.length]</code> <em>(number)</em>: The end position.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns <code>array</code>.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div><span class="type">var</span> array = [<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>];</div><div> </div><div>_<span class="delimiter method">.</span><span class="name">fill</span>(array<span class="delimiter">,</span> <span class="string">'a'</span>);</div><div><span class="name type console">console</span><span class="delimiter method">.</span><span class="support console">log</span>(array);</div><div><span class="comment">// => ['a', 'a', 'a']</span></div><div> </div><div>_<span class="delimiter method">.</span><span class="name">fill</span>(<span class="support">Array</span>(<span class="numeric">3</span>)<span class="delimiter">,</span> <span class="numeric">2</span>);</div><div><span class="comment">// => [2, 2, 2]</span></div><div> </div><div>_<span class="delimiter method">.</span><span class="name">fill</span>([<span class="numeric">4</span><span class="delimiter">,</span> <span class="numeric">6</span><span class="delimiter">,</span> <span class="numeric">8</span>]<span class="delimiter">,</span> <span class="string">'*'</span><span class="delimiter">,</span> <span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span>);</div><div><span class="comment">// => [4, '*', 8]</span></div></pre></div>
</div>
<div>
<h3 id="findIndex"><a href="#findIndex" class="fa fa-link"></a><code>_.findIndex(array, [predicate=_.identity], [thisArg])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L4808">source</a> <a href="https://www.npmjs.com/package/lodash.findindex">npm package</a></p>
<p>This method is like <a href="#find"><code>_.find</code></a> except that it returns the index of the first
element <code>predicate</code> returns truthy for instead of the element itself.
<br>
<br>
If a property name is provided for <code>predicate</code> the created <a href="#property"><code>_.property</code></a>
style callback returns the property value of the given element.
<br>
<br>
If a value is also provided for <code>thisArg</code> the created <a href="#matchesProperty"><code>_.matchesProperty</code></a>
style callback returns <code>true</code> for elements that have a matching property
value, else <code>false</code>.
<br>
<br>
If an object is provided for <code>predicate</code> the created <a href="#matches"><code>_.matches</code></a> style
callback returns <code>true</code> for elements that have the properties of the given
object, else <code>false</code>.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to search.</li>
<li><code>[predicate=_.identity]</code> <em>(Function|Object|string)</em>: The function invoked per iteration.</li>
<li><code>[thisArg]</code> <em>(*)</em>: The <code>this</code> binding of <code>predicate</code>.</li>
</ol>
<h4>Returns</h4>
<p><em>(number)</em>: Returns the index of the found element, else <code>-1</code>.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div><span class="type">var</span> users = [</div><div>  { <span class="string">'user'</span>: <span class="string">'barney'</span><span class="delimiter">,</span>  <span class="string">'active'</span>: false }<span class="delimiter">,</span></div><div>  { <span class="string">'user'</span>: <span class="string">'fred'</span><span class="delimiter">,</span>    <span class="string">'active'</span>: false }<span class="delimiter">,</span></div><div>  { <span class="string">'user'</span>: <span class="string">'pebbles'</span><span class="delimiter">,</span> <span class="string">'active'</span>: true }</div><div>];</div><div> </div><div>_<span class="delimiter method">.</span><span class="name">findIndex</span>(users<span class="delimiter">,</span> <span class="type">function</span>(chr) {</div><div>  return chr<span class="delimiter">.</span>user == <span class="string">'barney'</span>;</div><div>});</div><div><span class="comment">// => 0</span></div><div> </div><div><span class="comment">// using the `_.matches` callback shorthand</span></div><div>_<span class="delimiter method">.</span><span class="name">findIndex</span>(users<span class="delimiter">,</span> { <span class="string">'user'</span>: <span class="string">'fred'</span><span class="delimiter">,</span> <span class="string">'active'</span>: false });</div><div><span class="comment">// => 1</span></div><div> </div><div><span class="comment">// using the `_.matchesProperty` callback shorthand</span></div><div>_<span class="delimiter method">.</span><span class="name">findIndex</span>(users<span class="delimiter">,</span> <span class="string">'active'</span><span class="delimiter">,</span> false);</div><div><span class="comment">// => 0</span></div><div> </div><div><span class="comment">// using the `_.property` callback shorthand</span></div><div>_<span class="delimiter method">.</span><span class="name">findIndex</span>(users<span class="delimiter">,</span> <span class="string">'active'</span>);</div><div><span class="comment">// => 2</span></div></pre></div>
</div>
<div>
<h3 id="findLastIndex"><a href="#findLastIndex" class="fa fa-link"></a><code>_.findLastIndex(array, [predicate=_.identity], [thisArg])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L4858">source</a> <a href="https://www.npmjs.com/package/lodash.findlastindex">npm package</a></p>
<p>This method is like <a href="#findIndex"><code>_.findIndex</code></a> except that it iterates over elements
of <code>collection</code> from right to left.
<br>
<br>
If a property name is provided for <code>predicate</code> the created <a href="#property"><code>_.property</code></a>
style callback returns the property value of the given element.
<br>
<br>
If a value is also provided for <code>thisArg</code> the created <a href="#matchesProperty"><code>_.matchesProperty</code></a>
style callback returns <code>true</code> for elements that have a matching property
value, else <code>false</code>.
<br>
<br>
If an object is provided for <code>predicate</code> the created <a href="#matches"><code>_.matches</code></a> style
callback returns <code>true</code> for elements that have the properties of the given
object, else <code>false</code>.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to search.</li>
<li><code>[predicate=_.identity]</code> <em>(Function|Object|string)</em>: The function invoked per iteration.</li>
<li><code>[thisArg]</code> <em>(*)</em>: The <code>this</code> binding of <code>predicate</code>.</li>
</ol>
<h4>Returns</h4>
<p><em>(number)</em>: Returns the index of the found element, else <code>-1</code>.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div><span class="type">var</span> users = [</div><div>  { <span class="string">'user'</span>: <span class="string">'barney'</span><span class="delimiter">,</span>  <span class="string">'active'</span>: true }<span class="delimiter">,</span></div><div>  { <span class="string">'user'</span>: <span class="string">'fred'</span><span class="delimiter">,</span>    <span class="string">'active'</span>: false }<span class="delimiter">,</span></div><div>  { <span class="string">'user'</span>: <span class="string">'pebbles'</span><span class="delimiter">,</span> <span class="string">'active'</span>: false }</div><div>];</div><div> </div><div>_<span class="delimiter method">.</span><span class="name">findLastIndex</span>(users<span class="delimiter">,</span> <span class="type">function</span>(chr) {</div><div>  return chr<span class="delimiter">.</span>user == <span class="string">'pebbles'</span>;</div><div>});</div><div><span class="comment">// => 2</span></div><div> </div><div><span class="comment">// using the `_.matches` callback shorthand</span></div><div>_<span class="delimiter method">.</span><span class="name">findLastIndex</span>(users<span class="delimiter">,</span> { <span class="string">'user'</span>: <span class="string">'barney'</span><span class="delimiter">,</span> <span class="string">'active'</span>: true });</div><div><span class="comment">// => 0</span></div><div> </div><div><span class="comment">// using the `_.matchesProperty` callback shorthand</span></div><div>_<span class="delimiter method">.</span><span class="name">findLastIndex</span>(users<span class="delimiter">,</span> <span class="string">'active'</span><span class="delimiter">,</span> false);</div><div><span class="comment">// => 2</span></div><div> </div><div><span class="comment">// using the `_.property` callback shorthand</span></div><div>_<span class="delimiter method">.</span><span class="name">findLastIndex</span>(users<span class="delimiter">,</span> <span class="string">'active'</span>);</div><div><span class="comment">// => 0</span></div></pre></div>
</div>
<div>
<h3 id="first"><a href="#first" class="fa fa-link"></a><code>_.first(array)</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L4877">source</a> <a href="https://www.npmjs.com/package/lodash.first">npm package</a></p>
<p>Gets the first element of <code>array</code>.</p>
<h4>Aliases</h4>
<p><em>_.head</em></p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to query.</li>
</ol>
<h4>Returns</h4>
<p><em>(*)</em>: Returns the first element of <code>array</code>.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter method">.</span><span class="name">first</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]);</div><div><span class="comment">// => 1</span></div><div> </div><div>_<span class="delimiter method">.</span><span class="name">first</span>([]);</div><div><span class="comment">// => undefined</span></div></pre></div>
</div>
<div>
<h3 id="flatten"><a href="#flatten" class="fa fa-link"></a><code>_.flatten(array, [isDeep])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L4901">source</a> <a href="https://www.npmjs.com/package/lodash.flatten">npm package</a></p>
<p>Flattens a nested array. If <code>isDeep</code> is <code>true</code> the array is recursively
flattened, otherwise it's only flattened a single level.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to flatten.</li>
<li><code>[isDeep]</code> <em>(boolean)</em>: Specify a deep flatten.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns the new flattened array.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter method">.</span><span class="name">flatten</span>([<span class="numeric">1</span><span class="delimiter">,</span> [<span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span><span class="delimiter">,</span> [<span class="numeric">4</span>]]]);</div><div><span class="comment">// => [1, 2, 3, [4]]</span></div><div> </div><div><span class="comment">// using `isDeep`</span></div><div>_<span class="delimiter method">.</span><span class="name">flatten</span>([<span class="numeric">1</span><span class="delimiter">,</span> [<span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span><span class="delimiter">,</span> [<span class="numeric">4</span>]]]<span class="delimiter">,</span> true);</div><div><span class="comment">// => [1, 2, 3, 4]</span></div></pre></div>
</div>
<div>
<h3 id="flattenDeep"><a href="#flattenDeep" class="fa fa-link"></a><code>_.flattenDeep(array)</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L4922">source</a> <a href="https://www.npmjs.com/package/lodash.flattendeep">npm package</a></p>
<p>Recursively flattens a nested array.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to recursively flatten.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns the new flattened array.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter method">.</span><span class="name">flattenDeep</span>([<span class="numeric">1</span><span class="delimiter">,</span> [<span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span><span class="delimiter">,</span> [<span class="numeric">4</span>]]]);</div><div><span class="comment">// => [1, 2, 3, 4]</span></div></pre></div>
</div>
<div>
<h3 id="indexOf"><a href="#indexOf" class="fa fa-link"></a><code>_.indexOf(array, value, [fromIndex=0])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L4955">source</a> <a href="https://www.npmjs.com/package/lodash.indexof">npm package</a></p>
<p>Gets the index at which the first occurrence of <code>value</code> is found in <code>array</code>
using <a href="http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero"><code>SameValueZero</code></a>
for equality comparisons. If <code>fromIndex</code> is negative, it's used as the offset
from the end of <code>array</code>. If <code>array</code> is sorted providing <code>true</code> for <code>fromIndex</code>
performs a faster binary search.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to search.</li>
<li><code>value</code> <em>(*)</em>: The value to search for.</li>
<li><code>[fromIndex=0]</code> <em>(boolean|number)</em>: The index to search from or <code>true</code> to perform a binary search on a sorted array.</li>
</ol>
<h4>Returns</h4>
<p><em>(number)</em>: Returns the index of the matched value, else <code>-1</code>.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter method">.</span><span class="support">indexOf</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span>]<span class="delimiter">,</span> <span class="numeric">2</span>);</div><div><span class="comment">// => 1</span></div><div> </div><div><span class="comment">// using `fromIndex`</span></div><div>_<span class="delimiter method">.</span><span class="support">indexOf</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span>]<span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">2</span>);</div><div><span class="comment">// => 3</span></div><div> </div><div><span class="comment">// performing a binary search</span></div><div>_<span class="delimiter method">.</span><span class="support">indexOf</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">2</span>]<span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> true);</div><div><span class="comment">// => 2</span></div></pre></div>
</div>
<div>
<h3 id="initial"><a href="#initial" class="fa fa-link"></a><code>_.initial(array)</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L4986">source</a> <a href="https://www.npmjs.com/package/lodash.initial">npm package</a></p>
<p>Gets all but the last element of <code>array</code>.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to query.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns the slice of <code>array</code>.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter method">.</span><span class="name">initial</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]);</div><div><span class="comment">// => [1, 2]</span></div></pre></div>
</div>
<div>
<h3 id="intersection"><a href="#intersection" class="fa fa-link"></a><code>_.intersection([arrays])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L5004">source</a> <a href="https://www.npmjs.com/package/lodash.intersection">npm package</a></p>
<p>Creates an array of unique values that are included in all of the provided
arrays using <a href="http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero"><code>SameValueZero</code></a>
for equality comparisons.</p>
<h4>Arguments</h4>
<ol>
<li><code>[arrays]</code> <em>(...Array)</em>: The arrays to inspect.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns the new array of shared values.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter method">.</span><span class="name">intersection</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span>]<span class="delimiter">,</span> [<span class="numeric">4</span><span class="delimiter">,</span> <span class="numeric">2</span>]<span class="delimiter">,</span> [<span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">1</span>]);</div><div><span class="comment">// => [2]</span></div></pre></div>
</div>
<div>
<h3 id="last"><a href="#last" class="fa fa-link"></a><code>_.last(array)</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L5054">source</a> <a href="https://www.npmjs.com/package/lodash.last">npm package</a></p>
<p>Gets the last element of <code>array</code>.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to query.</li>
</ol>
<h4>Returns</h4>
<p><em>(*)</em>: Returns the last element of <code>array</code>.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter method">.</span><span class="name">last</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]);</div><div><span class="comment">// => 3</span></div></pre></div>
</div>
<div>
<h3 id="lastIndexOf"><a href="#lastIndexOf" class="fa fa-link"></a><code>_.lastIndexOf(array, value, [fromIndex=array.length-1])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L5084">source</a> <a href="https://www.npmjs.com/package/lodash.lastindexof">npm package</a></p>
<p>This method is like <a href="#indexOf"><code>_.indexOf</code></a> except that it iterates over elements of
<code>array</code> from right to left.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to search.</li>
<li><code>value</code> <em>(*)</em>: The value to search for.</li>
<li><code>[fromIndex=array.length-1]</code> <em>(boolean|number)</em>: The index to search from or <code>true</code> to perform a binary search on a sorted array.</li>
</ol>
<h4>Returns</h4>
<p><em>(number)</em>: Returns the index of the matched value, else <code>-1</code>.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter method">.</span><span class="support">lastIndexOf</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span>]<span class="delimiter">,</span> <span class="numeric">2</span>);</div><div><span class="comment">// => 3</span></div><div> </div><div><span class="comment">// using `fromIndex`</span></div><div>_<span class="delimiter method">.</span><span class="support">lastIndexOf</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span>]<span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">2</span>);</div><div><span class="comment">// => 1</span></div><div> </div><div><span class="comment">// performing a binary search</span></div><div>_<span class="delimiter method">.</span><span class="support">lastIndexOf</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">2</span>]<span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> true);</div><div><span class="comment">// => 3</span></div></pre></div>
</div>
<div>
<h3 id="pull"><a href="#pull" class="fa fa-link"></a><code>_.pull(array, [values])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L5132">source</a> <a href="https://www.npmjs.com/package/lodash.pull">npm package</a></p>
<p>Removes all provided values from <code>array</code> using
<a href="http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero"><code>SameValueZero</code></a>
for equality comparisons.
<br>
<br>
<strong>Note:</strong> Unlike <a href="#without"><code>_.without</code></a>, this method mutates <code>array</code>.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to modify.</li>
<li><code>[values]</code> <em>(...*)</em>: The values to remove.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns <code>array</code>.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div><span class="type">var</span> array = [<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span><span class="delimiter">,</span> <span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>];</div><div> </div><div>_<span class="delimiter method">.</span><span class="name">pull</span>(array<span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>);</div><div><span class="name type console">console</span><span class="delimiter method">.</span><span class="support console">log</span>(array);</div><div><span class="comment">// => [1, 1]</span></div></pre></div>
</div>
<div>
<h3 id="pullAt"><a href="#pullAt" class="fa fa-link"></a><code>_.pullAt(array, [indexes])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L5179">source</a> <a href="https://www.npmjs.com/package/lodash.pullat">npm package</a></p>
<p>Removes elements from <code>array</code> corresponding to the given indexes and returns
an array of the removed elements. Indexes may be specified as an array of
indexes or as individual arguments.
<br>
<br>
<strong>Note:</strong> Unlike <a href="#at"><code>_.at</code></a>, this method mutates <code>array</code>.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to modify.</li>
<li><code>[indexes]</code> <em>(...(number|number[]))</em>: The indexes of elements to remove, specified as individual indexes or arrays of indexes.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns the new array of removed elements.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div><span class="type">var</span> array = [<span class="numeric">5</span><span class="delimiter">,</span> <span class="numeric">10</span><span class="delimiter">,</span> <span class="numeric">15</span><span class="delimiter">,</span> <span class="numeric">20</span>];</div><div><span class="type">var</span> evens = _<span class="delimiter method">.</span><span class="name">pullAt</span>(array<span class="delimiter">,</span> <span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">3</span>);</div><div> </div><div><span class="name type console">console</span><span class="delimiter method">.</span><span class="support console">log</span>(array);</div><div><span class="comment">// => [5, 15]</span></div><div> </div><div><span class="name type console">console</span><span class="delimiter method">.</span><span class="support console">log</span>(evens);</div><div><span class="comment">// => [10, 20]</span></div></pre></div>
</div>
<div>
<h3 id="remove"><a href="#remove" class="fa fa-link"></a><code>_.remove(array, [predicate=_.identity], [thisArg])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L5226">source</a> <a href="https://www.npmjs.com/package/lodash.remove">npm package</a></p>
<p>Removes all elements from <code>array</code> that <code>predicate</code> returns truthy for
and returns an array of the removed elements. The predicate is bound to
<code>thisArg</code> and invoked with three arguments: <em>(value, index, array)</em>.
<br>
<br>
If a property name is provided for <code>predicate</code> the created <a href="#property"><code>_.property</code></a>
style callback returns the property value of the given element.
<br>
<br>
If a value is also provided for <code>thisArg</code> the created <a href="#matchesProperty"><code>_.matchesProperty</code></a>
style callback returns <code>true</code> for elements that have a matching property
value, else <code>false</code>.
<br>
<br>
If an object is provided for <code>predicate</code> the created <a href="#matches"><code>_.matches</code></a> style
callback returns <code>true</code> for elements that have the properties of the given
object, else <code>false</code>.
<br>
<br>
<strong>Note:</strong> Unlike <a href="#filter"><code>_.filter</code></a>, this method mutates <code>array</code>.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to modify.</li>
<li><code>[predicate=_.identity]</code> <em>(Function|Object|string)</em>: The function invoked per iteration.</li>
<li><code>[thisArg]</code> <em>(*)</em>: The <code>this</code> binding of <code>predicate</code>.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns the new array of removed elements.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div><span class="type">var</span> array = [<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span><span class="delimiter">,</span> <span class="numeric">4</span>];</div><div><span class="type">var</span> evens = _<span class="delimiter method">.</span><span class="name">remove</span>(array<span class="delimiter">,</span> <span class="type">function</span>(n) {</div><div>  return n % <span class="numeric">2</span> == <span class="numeric">0</span>;</div><div>});</div><div> </div><div><span class="name type console">console</span><span class="delimiter method">.</span><span class="support console">log</span>(array);</div><div><span class="comment">// => [1, 3]</span></div><div> </div><div><span class="name type console">console</span><span class="delimiter method">.</span><span class="support console">log</span>(evens);</div><div><span class="comment">// => [2, 4]</span></div></pre></div>
</div>
<div>
<h3 id="rest"><a href="#rest" class="fa fa-link"></a><code>_.rest(array)</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L5261">source</a> <a href="https://www.npmjs.com/package/lodash.rest">npm package</a></p>
<p>Gets all but the first element of <code>array</code>.</p>
<h4>Aliases</h4>
<p><em>_.tail</em></p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to query.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns the slice of <code>array</code>.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter method">.</span><span class="name">rest</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]);</div><div><span class="comment">// => [2, 3]</span></div></pre></div>
</div>
<div>
<h3 id="slice"><a href="#slice" class="fa fa-link"></a><code>_.slice(array, [start=0], [end=array.length])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L5279">source</a> <a href="https://www.npmjs.com/package/lodash.slice">npm package</a></p>
<p>Creates a slice of <code>array</code> from <code>start</code> up to, but not including, <code>end</code>.
<br>
<br>
<strong>Note:</strong> This method is used instead of <code>Array#slice</code> to support node
lists in IE < <code>9</code> and to ensure dense arrays are returned.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to slice.</li>
<li><code>[start=0]</code> <em>(number)</em>: The start position.</li>
<li><code>[end=array.length]</code> <em>(number)</em>: The end position.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns the slice of <code>array</code>.</p>
</div>
<div>
<h3 id="sortedIndex"><a href="#sortedIndex" class="fa fa-link"></a><code>_.sortedIndex(array, value, [iteratee=_.identity], [thisArg])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L5339">source</a> <a href="https://www.npmjs.com/package/lodash.sortedindex">npm package</a></p>
<p>Uses a binary search to determine the lowest index at which <code>value</code> should
be inserted into <code>array</code> in order to maintain its sort order. If an iteratee
function is provided it's invoked for <code>value</code> and each element of <code>array</code>
to compute their sort ranking. The iteratee is bound to <code>thisArg</code> and
invoked with one argument; <em>(value)</em>.
<br>
<br>
If a property name is provided for <code>iteratee</code> the created <a href="#property"><code>_.property</code></a>
style callback returns the property value of the given element.
<br>
<br>
If a value is also provided for <code>thisArg</code> the created <a href="#matchesProperty"><code>_.matchesProperty</code></a>
style callback returns <code>true</code> for elements that have a matching property
value, else <code>false</code>.
<br>
<br>
If an object is provided for <code>iteratee</code> the created <a href="#matches"><code>_.matches</code></a> style
callback returns <code>true</code> for elements that have the properties of the given
object, else <code>false</code>.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The sorted array to inspect.</li>
<li><code>value</code> <em>(*)</em>: The value to evaluate.</li>
<li><code>[iteratee=_.identity]</code> <em>(Function|Object|string)</em>: The function invoked per iteration.</li>
<li><code>[thisArg]</code> <em>(*)</em>: The <code>this</code> binding of <code>iteratee</code>.</li>
</ol>
<h4>Returns</h4>
<p><em>(number)</em>: Returns the index at which <code>value</code> should be inserted into <code>array</code>.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter method">.</span><span class="name">sortedIndex</span>([<span class="numeric">30</span><span class="delimiter">,</span> <span class="numeric">50</span>]<span class="delimiter">,</span> <span class="numeric">40</span>);</div><div><span class="comment">// => 1</span></div><div> </div><div>_<span class="delimiter method">.</span><span class="name">sortedIndex</span>([<span class="numeric">4</span><span class="delimiter">,</span> <span class="numeric">4</span><span class="delimiter">,</span> <span class="numeric">5</span><span class="delimiter">,</span> <span class="numeric">5</span>]<span class="delimiter">,</span> <span class="numeric">5</span>);</div><div><span class="comment">// => 2</span></div><div> </div><div><span class="type">var</span> dict = { <span class="string">'data'</span>: { <span class="string">'thirty'</span>: <span class="numeric">30</span><span class="delimiter">,</span> <span class="string">'forty'</span>: <span class="numeric">40</span><span class="delimiter">,</span> <span class="string">'fifty'</span>: <span class="numeric">50</span> } };</div><div> </div><div><span class="comment">// using an iteratee function</span></div><div>_<span class="delimiter method">.</span><span class="name">sortedIndex</span>([<span class="string">'thirty'</span><span class="delimiter">,</span> <span class="string">'fifty'</span>]<span class="delimiter">,</span> <span class="string">'forty'</span><span class="delimiter">,</span> <span class="type">function</span>(word) {</div><div>  return this<span class="delimiter">.</span><span class="support">data</span>[word];</div><div>}<span class="delimiter">,</span> dict);</div><div><span class="comment">// => 1</span></div><div> </div><div><span class="comment">// using the `_.property` callback shorthand</span></div><div>_<span class="delimiter method">.</span><span class="name">sortedIndex</span>([{ <span class="string">'x'</span>: <span class="numeric">30</span> }<span class="delimiter">,</span> { <span class="string">'x'</span>: <span class="numeric">50</span> }]<span class="delimiter">,</span> { <span class="string">'x'</span>: <span class="numeric">40</span> }<span class="delimiter">,</span> <span class="string">'x'</span>);</div><div><span class="comment">// => 1</span></div></pre></div>
</div>
<div>
<h3 id="sortedLastIndex"><a href="#sortedLastIndex" class="fa fa-link"></a><code>_.sortedLastIndex(array, value, [iteratee=_.identity], [thisArg])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L5361">source</a> <a href="https://www.npmjs.com/package/lodash.sortedlastindex">npm package</a></p>
<p>This method is like <a href="#sortedIndex"><code>_.sortedIndex</code></a> except that it returns the highest
index at which <code>value</code> should be inserted into <code>array</code> in order to
maintain its sort order.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The sorted array to inspect.</li>
<li><code>value</code> <em>(*)</em>: The value to evaluate.</li>
<li><code>[iteratee=_.identity]</code> <em>(Function|Object|string)</em>: The function invoked per iteration.</li>
<li><code>[thisArg]</code> <em>(*)</em>: The <code>this</code> binding of <code>iteratee</code>.</li>
</ol>
<h4>Returns</h4>
<p><em>(number)</em>: Returns the index at which <code>value</code> should be inserted into <code>array</code>.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter method">.</span><span class="name">sortedLastIndex</span>([<span class="numeric">4</span><span class="delimiter">,</span> <span class="numeric">4</span><span class="delimiter">,</span> <span class="numeric">5</span><span class="delimiter">,</span> <span class="numeric">5</span>]<span class="delimiter">,</span> <span class="numeric">5</span>);</div><div><span class="comment">// => 4</span></div></pre></div>
</div>
<div>
<h3 id="take"><a href="#take" class="fa fa-link"></a><code>_.take(array, [n=1])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L5387">source</a> <a href="https://www.npmjs.com/package/lodash.take">npm package</a></p>
<p>Creates a slice of <code>array</code> with <code>n</code> elements taken from the beginning.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to query.</li>
<li><code>[n=1]</code> <em>(number)</em>: The number of elements to take.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns the slice of <code>array</code>.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter method">.</span><span class="name">take</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]);</div><div><span class="comment">// => [1]</span></div><div> </div><div>_<span class="delimiter method">.</span><span class="name">take</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]<span class="delimiter">,</span> <span class="numeric">2</span>);</div><div><span class="comment">// => [1, 2]</span></div><div> </div><div>_<span class="delimiter method">.</span><span class="name">take</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]<span class="delimiter">,</span> <span class="numeric">5</span>);</div><div><span class="comment">// => [1, 2, 3]</span></div><div> </div><div>_<span class="delimiter method">.</span><span class="name">take</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]<span class="delimiter">,</span> <span class="numeric">0</span>);</div><div><span class="comment">// => []</span></div></pre></div>
</div>
<div>
<h3 id="takeRight"><a href="#takeRight" class="fa fa-link"></a><code>_.takeRight(array, [n=1])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L5422">source</a> <a href="https://www.npmjs.com/package/lodash.takeright">npm package</a></p>
<p>Creates a slice of <code>array</code> with <code>n</code> elements taken from the end.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to query.</li>
<li><code>[n=1]</code> <em>(number)</em>: The number of elements to take.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns the slice of <code>array</code>.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter method">.</span><span class="name">takeRight</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]);</div><div><span class="comment">// => [3]</span></div><div> </div><div>_<span class="delimiter method">.</span><span class="name">takeRight</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]<span class="delimiter">,</span> <span class="numeric">2</span>);</div><div><span class="comment">// => [2, 3]</span></div><div> </div><div>_<span class="delimiter method">.</span><span class="name">takeRight</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]<span class="delimiter">,</span> <span class="numeric">5</span>);</div><div><span class="comment">// => [1, 2, 3]</span></div><div> </div><div>_<span class="delimiter method">.</span><span class="name">takeRight</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]<span class="delimiter">,</span> <span class="numeric">0</span>);</div><div><span class="comment">// => []</span></div></pre></div>
</div>
<div>
<h3 id="takeRightWhile"><a href="#takeRightWhile" class="fa fa-link"></a><code>_.takeRightWhile(array, [predicate=_.identity], [thisArg])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L5483">source</a> <a href="https://www.npmjs.com/package/lodash.takerightwhile">npm package</a></p>
<p>Creates a slice of <code>array</code> with elements taken from the end. Elements are
taken until <code>predicate</code> returns falsey. The predicate is bound to <code>thisArg</code>
and invoked with three arguments: <em>(value, index, array)</em>.
<br>
<br>
If a property name is provided for <code>predicate</code> the created <a href="#property"><code>_.property</code></a>
style callback returns the property value of the given element.
<br>
<br>
If a value is also provided for <code>thisArg</code> the created <a href="#matchesProperty"><code>_.matchesProperty</code></a>
style callback returns <code>true</code> for elements that have a matching property
value, else <code>false</code>.
<br>
<br>
If an object is provided for <code>predicate</code> the created <a href="#matches"><code>_.matches</code></a> style
callback returns <code>true</code> for elements that have the properties of the given
object, else <code>false</code>.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to query.</li>
<li><code>[predicate=_.identity]</code> <em>(Function|Object|string)</em>: The function invoked per iteration.</li>
<li><code>[thisArg]</code> <em>(*)</em>: The <code>this</code> binding of <code>predicate</code>.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns the slice of <code>array</code>.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter method">.</span><span class="name">takeRightWhile</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]<span class="delimiter">,</span> <span class="type">function</span>(n) {</div><div>  return n > <span class="numeric">1</span>;</div><div>});</div><div><span class="comment">// => [2, 3]</span></div><div> </div><div><span class="type">var</span> users = [</div><div>  { <span class="string">'user'</span>: <span class="string">'barney'</span><span class="delimiter">,</span>  <span class="string">'active'</span>: true }<span class="delimiter">,</span></div><div>  { <span class="string">'user'</span>: <span class="string">'fred'</span><span class="delimiter">,</span>    <span class="string">'active'</span>: false }<span class="delimiter">,</span></div><div>  { <span class="string">'user'</span>: <span class="string">'pebbles'</span><span class="delimiter">,</span> <span class="string">'active'</span>: false }</div><div>];</div><div> </div><div><span class="comment">// using the `_.matches` callback shorthand</span></div><div>_<span class="delimiter method">.</span><span class="name">pluck</span>(_<span class="delimiter method">.</span><span class="name">takeRightWhile</span>(users<span class="delimiter">,</span> { <span class="string">'user'</span>: <span class="string">'pebbles'</span><span class="delimiter">,</span> <span class="string">'active'</span>: false })<span class="delimiter">,</span> <span class="string">'user'</span>);</div><div><span class="comment">// => ['pebbles']</span></div><div> </div><div><span class="comment">// using the `_.matchesProperty` callback shorthand</span></div><div>_<span class="delimiter method">.</span><span class="name">pluck</span>(_<span class="delimiter method">.</span><span class="name">takeRightWhile</span>(users<span class="delimiter">,</span> <span class="string">'active'</span><span class="delimiter">,</span> false)<span class="delimiter">,</span> <span class="string">'user'</span>);</div><div><span class="comment">// => ['fred', 'pebbles']</span></div><div> </div><div><span class="comment">// using the `_.property` callback shorthand</span></div><div>_<span class="delimiter method">.</span><span class="name">pluck</span>(_<span class="delimiter method">.</span><span class="name">takeRightWhile</span>(users<span class="delimiter">,</span> <span class="string">'active'</span>)<span class="delimiter">,</span> <span class="string">'user'</span>);</div><div><span class="comment">// => []</span></div></pre></div>
</div>
<div>
<h3 id="takeWhile"><a href="#takeWhile" class="fa fa-link"></a><code>_.takeWhile(array, [predicate=_.identity], [thisArg])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L5538">source</a> <a href="https://www.npmjs.com/package/lodash.takewhile">npm package</a></p>
<p>Creates a slice of <code>array</code> with elements taken from the beginning. Elements
are taken until <code>predicate</code> returns falsey. The predicate is bound to
<code>thisArg</code> and invoked with three arguments: <em>(value, index, array)</em>.
<br>
<br>
If a property name is provided for <code>predicate</code> the created <a href="#property"><code>_.property</code></a>
style callback returns the property value of the given element.
<br>
<br>
If a value is also provided for <code>thisArg</code> the created <a href="#matchesProperty"><code>_.matchesProperty</code></a>
style callback returns <code>true</code> for elements that have a matching property
value, else <code>false</code>.
<br>
<br>
If an object is provided for <code>predicate</code> the created <a href="#matches"><code>_.matches</code></a> style
callback returns <code>true</code> for elements that have the properties of the given
object, else <code>false</code>.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to query.</li>
<li><code>[predicate=_.identity]</code> <em>(Function|Object|string)</em>: The function invoked per iteration.</li>
<li><code>[thisArg]</code> <em>(*)</em>: The <code>this</code> binding of <code>predicate</code>.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns the slice of <code>array</code>.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter method">.</span><span class="name">takeWhile</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">3</span>]<span class="delimiter">,</span> <span class="type">function</span>(n) {</div><div>  return n < <span class="numeric">3</span>;</div><div>});</div><div><span class="comment">// => [1, 2]</span></div><div> </div><div><span class="type">var</span> users = [</div><div>  { <span class="string">'user'</span>: <span class="string">'barney'</span><span class="delimiter">,</span>  <span class="string">'active'</span>: false }<span class="delimiter">,</span></div><div>  { <span class="string">'user'</span>: <span class="string">'fred'</span><span class="delimiter">,</span>    <span class="string">'active'</span>: false}<span class="delimiter">,</span></div><div>  { <span class="string">'user'</span>: <span class="string">'pebbles'</span><span class="delimiter">,</span> <span class="string">'active'</span>: true }</div><div>];</div><div> </div><div><span class="comment">// using the `_.matches` callback shorthand</span></div><div>_<span class="delimiter method">.</span><span class="name">pluck</span>(_<span class="delimiter method">.</span><span class="name">takeWhile</span>(users<span class="delimiter">,</span> { <span class="string">'user'</span>: <span class="string">'barney'</span><span class="delimiter">,</span> <span class="string">'active'</span>: false })<span class="delimiter">,</span> <span class="string">'user'</span>);</div><div><span class="comment">// => ['barney']</span></div><div> </div><div><span class="comment">// using the `_.matchesProperty` callback shorthand</span></div><div>_<span class="delimiter method">.</span><span class="name">pluck</span>(_<span class="delimiter method">.</span><span class="name">takeWhile</span>(users<span class="delimiter">,</span> <span class="string">'active'</span><span class="delimiter">,</span> false)<span class="delimiter">,</span> <span class="string">'user'</span>);</div><div><span class="comment">// => ['barney', 'fred']</span></div><div> </div><div><span class="comment">// using the `_.property` callback shorthand</span></div><div>_<span class="delimiter method">.</span><span class="name">pluck</span>(_<span class="delimiter method">.</span><span class="name">takeWhile</span>(users<span class="delimiter">,</span> <span class="string">'active'</span>)<span class="delimiter">,</span> <span class="string">'user'</span>);</div><div><span class="comment">// => []</span></div></pre></div>
</div>
<div>
<h3 id="union"><a href="#union" class="fa fa-link"></a><code>_.union([arrays])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L5559">source</a> <a href="https://www.npmjs.com/package/lodash.union">npm package</a></p>
<p>Creates an array of unique values, in order, from all of the provided arrays
using <a href="http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero"><code>SameValueZero</code></a>
for equality comparisons.</p>
<h4>Arguments</h4>
<ol>
<li><code>[arrays]</code> <em>(...Array)</em>: The arrays to inspect.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns the new array of combined values.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter method">.</span><span class="name">union</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span>]<span class="delimiter">,</span> [<span class="numeric">4</span><span class="delimiter">,</span> <span class="numeric">2</span>]<span class="delimiter">,</span> [<span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">1</span>]);</div><div><span class="comment">// => [1, 2, 4]</span></div></pre></div>
</div>
<div>
<h3 id="uniq"><a href="#uniq" class="fa fa-link"></a><code>_.uniq(array, [isSorted], [iteratee], [thisArg])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L5612">source</a> <a href="https://www.npmjs.com/package/lodash.uniq">npm package</a></p>
<p>Creates a duplicate-free version of an array, using
<a href="http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero"><code>SameValueZero</code></a>
for equality comparisons, in which only the first occurence of each element
is kept. Providing <code>true</code> for <code>isSorted</code> performs a faster search algorithm
for sorted arrays. If an iteratee function is provided it's invoked for
each element in the array to generate the criterion by which uniqueness
is computed. The <code>iteratee</code> is bound to <code>thisArg</code> and invoked with three
arguments: <em>(value, index, array)</em>.
<br>
<br>
If a property name is provided for <code>iteratee</code> the created <a href="#property"><code>_.property</code></a>
style callback returns the property value of the given element.
<br>
<br>
If a value is also provided for <code>thisArg</code> the created <a href="#matchesProperty"><code>_.matchesProperty</code></a>
style callback returns <code>true</code> for elements that have a matching property
value, else <code>false</code>.
<br>
<br>
If an object is provided for <code>iteratee</code> the created <a href="#matches"><code>_.matches</code></a> style
callback returns <code>true</code> for elements that have the properties of the given
object, else <code>false</code>.</p>
<h4>Aliases</h4>
<p><em>_.unique</em></p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array to inspect.</li>
<li><code>[isSorted]</code> <em>(boolean)</em>: Specify the array is sorted.</li>
<li><code>[iteratee]</code> <em>(Function|Object|string)</em>: The function invoked per iteration.</li>
<li><code>[thisArg]</code> <em>(*)</em>: The <code>this</code> binding of <code>iteratee</code>.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns the new duplicate-value-free array.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div>_<span class="delimiter method">.</span><span class="name">uniq</span>([<span class="numeric">2</span><span class="delimiter">,</span> <span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span>]);</div><div><span class="comment">// => [2, 1]</span></div><div> </div><div><span class="comment">// using `isSorted`</span></div><div>_<span class="delimiter method">.</span><span class="name">uniq</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2</span>]<span class="delimiter">,</span> true);</div><div><span class="comment">// => [1, 2]</span></div><div> </div><div><span class="comment">// using an iteratee function</span></div><div>_<span class="delimiter method">.</span><span class="name">uniq</span>([<span class="numeric">1</span><span class="delimiter">,</span> <span class="numeric">2<span class="delimiter">.</span>5</span><span class="delimiter">,</span> <span class="numeric">1<span class="delimiter">.</span>5</span><span class="delimiter">,</span> <span class="numeric">2</span>]<span class="delimiter">,</span> <span class="type">function</span>(n) {</div><div>  return this<span class="delimiter method">.</span><span class="name">floor</span>(n);</div><div>}<span class="delimiter">,</span> <span class="support">Math</span>);</div><div><span class="comment">// => [1, 2.5]</span></div><div> </div><div><span class="comment">// using the `_.property` callback shorthand</span></div><div>_<span class="delimiter method">.</span><span class="name">uniq</span>([{ <span class="string">'x'</span>: <span class="numeric">1</span> }<span class="delimiter">,</span> { <span class="string">'x'</span>: <span class="numeric">2</span> }<span class="delimiter">,</span> { <span class="string">'x'</span>: <span class="numeric">1</span> }]<span class="delimiter">,</span> <span class="string">'x'</span>);</div><div><span class="comment">// => [{ 'x': 1 }, { 'x': 2 }]</span></div></pre></div>
</div>
<div>
<h3 id="unzip"><a href="#unzip" class="fa fa-link"></a><code>_.unzip(array)</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L5649">source</a> <a href="https://www.npmjs.com/package/lodash.unzip">npm package</a></p>
<p>This method is like <a href="#zip"><code>_.zip</code></a> except that it accepts an array of grouped
elements and creates an array regrouping the elements to their pre-zip
configuration.</p>
<h4>Arguments</h4>
<ol>
<li><code>array</code> <em>(Array)</em>: The array of grouped elements to process.</li>
</ol>
<h4>Returns</h4>
<p><em>(Array)</em>: Returns the new array of regrouped elements.</p>
<h4>Example</h4>
<div class="highlight js"><pre><div><span class="type">var</span> zipped = _<span class="delimiter method">.</span><span class="name">zip</span>([<span class="string">'fred'</span><span class="delimiter">,</span> <span class="string">'barney'</span>]<span class="delimiter">,</span> [<span class="numeric">30</span><span class="delimiter">,</span> <span class="numeric">40</span>]<span class="delimiter">,</span> [true<span class="delimiter">,</span> false]);</div><div><span class="comment">// => [['fred', 30, true], ['barney', 40, false]]</span></div><div> </div><div>_<span class="delimiter method">.</span><span class="name">unzip</span>(zipped);</div><div><span class="comment">// => [['fred', 'barney'], [30, 40], [true, false]]</span></div></pre></div>
</div>
<div>
<h3 id="unzipWith"><a href="#unzipWith" class="fa fa-link"></a><code>_.unzipWith(array, [iteratee], [thisArg])</code></h3>
<p><a href="https://github.com/lodash/lodash/blob/3.10.1/lodash.js#L5689">source</a> <a href="https://www.npmjs.com/package/lodash.unzipwith">npm package</a></p>
<p>This method is like <a href="#unzip"><code>_.unzip</code></a> except that it accepts an iteratee to specify
how regrouped values should be combined. The <code>iteratee</code> is bound to <code>thisArg</code>
and invoked with four arguments: <em>(accumulator, value, index, group)</em>.</p>