getElementById vs. querySelector (v8)

Revision 8 of this benchmark created by vamp on

Description

Compare the speed of getElementById to querySelector

Preparation HTML

<script type="text/javascript" src="http://code.jquery.com/jquery.min.js"></script>
<p>Foo</p>
<p>Foo</p>
<p>Foo</p>
<p>Foo</p>
<p>Foo</p>
<p>Foo
<p>Foo</p>
<p>Foo</p>
<p>Foo</p>
<p>Foo</p>
<p>Foo</p>
<p>Foo</p>

<p id="foo">Foo</p>
</p>

<p>Foo</p>
<p>Bar</p>
<p>Foo</p>
<p>Bar</p>
<p>Foo</p>
<p>Bar</p>
<p>Foo</p>
<p>Bar</p>
<p>Foo</p>
<p>Bar</p>

<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Foo</p>
<p>Foo

<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar
<p id="bar">Bar</p>
</p>

</p>


<p>Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p id="baz">Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>

<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>

Test runner

Ready to run.

Testing in
TestOps/sec
getElementById
var bar = document.getElementById("bar");
ready
querySelector
var bar = document.querySelector("#bar");
ready
jQuery Test
var bar = jQuery('#bar');
ready

Revisions

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