getElementByClass[0] vs. querySelector

JavaScript performance comparison

Revision 34 of this test case created by AjiTae

Preparation code

<p class="test">Foo</p>
<p class="test">Baz</p>
<p class="test">Bar</p>
<p class="test">Foo</p>
<p class="test">Baz</p>
<p class="test">Bar</p>
<p class="test">Foo</p>
<p class="test">Baz</p>
<p class="test">Bar</p>

    

Preparation code output

<p class="test">Foo</p> <p class="test">Baz</p> <p class="test">Bar</p> <p class="test">Foo</p> <p class="test">Baz</p> <p class="test">Bar</p> <p class="test">Foo</p> <p class="test">Baz</p> <p class="test">Bar</p>

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Java applet disabled.

Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
getElementsByClassName
var bar = document.getElementsByClassName("test")[0];
pending…
querySelector
var bar = document.querySelector(".test");
pending…

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Revisions

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