jQuery Attribute selector performance

JavaScript performance comparison

Revision 14 of this test case created by Jay

Info

Test to see if jQuery filters by selector before doing attribute matching.

Preparation code

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

<b class="t" name="test0"></b>
<b class="t" name="test0"></b>
<b class="t" name="test0"></b>
<b class="t" name="test1"></b>
<b class="t" name="test1"></b>
<b class="t" name="test1"></b>

Preparation code output

Test runner

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Testing in unknown unknown
Test Ops/sec
Attribute matching only
$('[name$="test0"]');
pending…
Attribute matching with class first
$('.t[name$="test0"]');
pending…
Chained
$('.t').find('[name$="test0"]');
pending…
Class only (for comparison)
$('.t');
pending…

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