getElementById vs. querySelector

JavaScript performance comparison

Revision 282 of this test case created by Victor

Preparation code

<p id="foo">Foo</p>
<p id="bar">Bar</p>
<p id="baz">Baz</p>
      
<script>
Benchmark.prototype.setup = function() {
  var BAR = {};

};

Benchmark.prototype.teardown = function() {
  BAR = {};

};
</script>

Preparation code output

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

Test runner

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Java applet disabled.

Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
querySelector
BAR = document.querySelector("#bar");
pending…
getElementById
BAR = document.getElementById("bar");
pending…

Revisions

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Foo

Bar

Baz