getElementById vs. querySelector vs. getElementsByClassName (v154)

Revision 154 of this benchmark created on

Description

Compare the speed of getElementById to querySelector to getElementsByClassName.

Preparation HTML

<p class="derp" id="foo">Foo</p>
<p class="derp" id="bar">Bar</p>
<p class="herp" id="baz">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
getElementsByClassName
var bar = document.getElementsByClassName("derp")[0];
ready

Revisions

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