getElementById VS jQuery('#id')

JavaScript performance comparison

Revision 30 of this test case created by Jason

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<script type="text/javascript">
jQuery.noConflict();
</script>
<script src="//ajax.googleapis.com/ajax/libs/prototype/1.7.1.0/prototype.js"></script>
<p id="foo">
  Test
</p>

Preparation code output

Test

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Testing in unknown unknown
Test Ops/sec
getElementById
var a = document.getElementById('foo');
 
pending…
jQuery
var a = jQuery('#foo');
pending…
Prototype
var a = $("foo");
pending…

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