getElementById vs. querySelector

JavaScript performance comparison

Revision 143 of this test case created by Kiura Magomadov

Preparation code

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

<scipt>
var conteiner = document.getElementById("conteiner");
</scipt>
    

Preparation code output

<div id="conteiner"> <p id="foo">Foo</p> <p id="bar">Bar</p> <p id="baz">Baz</p> </div> <scipt> var conteiner = document.getElementById("conteiner"); </scipt>

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

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Revisions

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0 Comments

Foo

Bar

Baz

var conteiner = document.getElementById("conteiner");