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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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$( "#test-set > span:first" );

$( "#test-set > span").first();

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