jQuery Attribute selector performance

JavaScript performance comparison

Revision 10 of this test case created by jiang

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" id="id_test0"></b>
<b class="t" name="test0" id="id_test1"></b>
<b class="t" name="test0" id="id_test2"></b>
<b class="t" name="test1" id="id_test3"></b>
<b class="t" name="test1" id="id_test4"></b>
<b class="t" name="test1" id="id_test5"></b>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
tag+attr id
$('b[id="id_test3"]');
pending…
byid
$("#id_test3");
pending…
name
$('b[name="test3"]');
pending…

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