jQuery Selector Benchmark

JavaScript performance comparison

Revision 29 of this test case created

Info

You can select children on a DOM in so many ways. This test breaks down selecting children in a list with use of a context, no context, and child selectors.

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js">
</script>
<div id="container">
  <ul id="parent">
    <li class="child">
    </li>
    <li class="foo">
    </li>
    <li class="child">
    </li>
    <li class="bar">
    </li>
  </ul>
</div>
<script>
var parentContext_HTML = $('#container').html();
var parentContext_TEXT = $('#container').text();
var parentContext_OBJECT = $('#container');
</script>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
$('.child', parentContext_OBJECT);
pending…
$(parentContext_HTML).find('.child');
pending…
$(parentContext_TEXT).find('.child');
pending…
$('#container').find('.child');
pending…
Parent / Child Selector
$('#container > .child');
pending…
Class Only
$('.child');
pending…

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