querySelector vs getElementByClassName

JavaScript performance comparison

Revision 88 of this test case created by Andre JS

Preparation code

<p class="foo">bar</p>
    

Preparation code output

<p class="foo">bar</p>

Test runner

Warning! For accurate results, please disable Firebug before running the tests. (Why?)

Java applet disabled.

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

Compare results of other browsers

Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL.

0 Comments

bar