Native vs jQuery selectors

JavaScript performance comparison

Test case created by Chen-Pang He

Preparation code

<div id="x"></div>
<div class="class"></div>
<header></header>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
Native id
$(document.getElementById("x"));
pending…
Native tag
$(document.getElementsByTagName("header"));
pending…
Native class
$(document.getElementsByClassName("class"));
pending…
jQuery id
$("#x");
pending…
jQuery tag
$("header");
pending…
jQuery class
$(".class");
pending…

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