getElementById vs. getElementsByClassName vs. querySelector vs. jQuery (v24)

Revision 24 of this benchmark created on

Preparation HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js">
</script>
<p id="foo" class="my-foo">
  Foo
</p>
<p id="bar" class="my-bar">
  Bar
</p>
<div id="poo" class="my-poo">
  <div id="par" class="my-bar">
    <div id="paz" class="my-bar">
      <span id="baz" class="my-baz">
        Baz
      </span>
    </div>
  </div>
</div>

Test runner

Ready to run.

Testing in
TestOps/sec
getElementById
var bar = document.getElementById("bar");
var poo = document.getElementById("poo");
ready
querySelector (ID)
var bar = document.querySelector("#bar");
var poo = document.querySelector("#poo");
ready
jQuery ID Selector
var bar = $("#bar");
var poo = $("#poo");
ready
getElementsByClassName
var bar = document.getElementsByClassName("my-bar");
ready
querySelector (Class)
var poo = document.getElementById("poo").querySelector(".my-baz");
ready
jQuery Class Selector
var bar = $(document.getElementById("poo").querySelector(".my-baz"));
ready

Revisions

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