JQuery $('#id') vs jQuery(document.getElementById('id'));

JavaScript performance comparison

Revision 15 of this test case created

Info

Fastest way get a jQuery object of a DOM element of which I have the ID. document.getElementById has the advantage of not requiring escaping for special characters.

Preparation code

<div id="el">Some HTML element</div>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>

Preparation code output

Some HTML element

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Testing in unknown unknown
Test Ops/sec
jQuery('#id')
jQuery('#el');
pending…
jQuery(document.getElementById('id'))
document.getElementById('el');
pending…

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