first pseudo selector vs first method

JavaScript performance comparison

Test case created by John Bender

Info

testing the relative performance of the first pseudo selector against pulling all the items in the page and using the first jquery method.

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<div id="test-set">
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</div>

Preparation code output

Test runner

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Testing in unknown unknown
Test Ops/sec
pseudo selector
$( "#test-set > span:first" );
pending…
method
$( "#test-set > span").first();
pending…

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