jQuery body vs. document.body selector

JavaScript performance comparison

Revision 2 of this test case created by Mathias Bynens and last updated

Preparation code

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

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec

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James Cooke commented :

It's worth noting that this revision crashes Firefox 8.0....ouch

Mathias Bynens commented :

@James, it seems to be working fine for me in Firefox 8.

Andrea commented :

Wow! huge difference.

Baine commented :

It's slow because your still running it through jquery. When all you need is document.body