getElementById vs. querySelector (v141)

Revision 141 of this benchmark created on

Preparation HTML

<p class="foo">Foo</p>
<p id="bar">Bar</p>
<p id="baz">Baz</p>
<p class="foo">Foo</p>
<p class="foo">Foo</p>
<p class="foo">Foo</p>
<p class="foo">Foo</p>

Test runner

Ready to run.

Testing in
TestOps/sec
getElementById
var bar = document.getElementById("bar");
ready
querySelector (class)
var bar = document.querySelector(".foo");
ready
OP method (class)
var els = document.getElementsByClassName('.foo');
if(els || els.length > 0) {
    var bar = els[0];
}
ready

Revisions

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