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<h1>unshift</h1>
<h2>Summary</h2>
<p>Inserts new elements at the start of an array.</p>
<h2>Syntax</h2>
<pre><code>unshift([ item1 [, item2 [, . . . [, itemN]]]])
</code></pre>
<dl>
<dt><strong>item1, item2,. . ., itemN</strong></dt>
<dd>Optional. Elements to insert at the start of the <strong>Array</strong>.
</dd>
</dl>
<h2>Examples</h2>
<p>The following example illustrates the use of the unshift method.</p>
<pre><code class="js"><span class="hljs-keyword">var</span> ar = <span class="hljs-keyword">new</span> <span class="hljs-built_in">Array</span>();
ar.unshift(<span class="hljs-number">10</span>, <span class="hljs-number">11</span>);
ar.unshift(<span class="hljs-number">12</span>, <span class="hljs-number">13</span>, <span class="hljs-number">14</span>);
<span class="hljs-built_in">document</span>.write(ar.toString());
<span class="hljs-comment">// Output: 12,13,14,10,11</span>
</code></pre>
<h2>Remarks</h2>
<p>The <strong>unshift</strong> method inserts elements into the start of an array, so they appear in the same order in which they appear in the argument list.</p>
<h2>See also</h2>
<h3>Specification</h3>
<p>[15.4.4.13 Array.prototype.unshift ( [ item1 [ , item2 <a href="http://www.ecma-international.org/ecma-262/5.1/#sec-15.4.4.13"> , …</a> ] ] )] ECMAScript® Language Specification Standard ECMA-262 5.1 Edition / June 2011</p>
<h2>Attributions</h2>
<ul>
<li><p>Microsoft Developer Network: <a href="http://msdn.microsoft.com/en-us/library/ie/ezk94dwt(v=vs.94).aspx">Article</a></p>
</li>
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