jQuery find vs qualifier

JavaScript performance comparison

Revision 2 of this test case created by Josh

Info

Why find is faster than qualifying your selector

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js">
</script>
<div>
  <div class='class'>
    <div id='id'>
    </div>
    <div class='class2'>
    </div>
    <div id='id2'>
    </div>
  </div>
</div>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
Qualified Selector
var cls = $('.class');
var child = $('.class2', cls);
pending…
Find
$('.class').find('.class2');
pending…

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