getElementById VS jQuery('#id')

JavaScript performance comparison

Revision 15 of this test case created by Jennifer Simonds

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js">
</script>
<p id="foo">
  Test
</p>

Preparation code output

Test

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Testing in unknown unknown
Test Ops/sec
getElementById
document.getElementById('foo');
pending…
jQuery
$('#foo');
pending…
getElementById -> jQuery
$(document.getElementById('foo'));
pending…
getElementById -> var -> jQuery
var domFoo = document.getElementById('foo');
$(domFoo);
 
pending…

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