jQuery vs JavaScript Performance Comparison

JavaScript performance comparison

Revision 16 of this test case created

Preparation code

<div id="hello"></div>
<div class="bye"></div>
<script src="https://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
jQuery ID Selector
var $el = $('#hello');
JavaScript ID Selector
var $el = document.getElementById('#hello');
jQuery Class Selector
var $el = $('.bye');
JavaScript Class Selector
var $el = document.querySelector('.bye');

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1 comment

stephen wille commented :

this won't work. it shouldn't have the #

var $el = document.getElementById('#hello');

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