Run results for: querySelectorAll vs JQuery

Compares the performance of querySelectorAll against JQuery for selecting elements. For class selector, getElementsByClassName is the best. For element selector, getElementsByTagName is the best.

Go to the benchmark

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:126.0) Gecko/20100101 Firefox/126.0

Browser: Firefox 126

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

jQuery selector by Class

7K/s

jQuery selector by Element

7K/s

querySelectorAll by Element

5K/s

querySelectorAll by Class

5K/s

querySelectorAll by Attribute

4K/s

jQuery selector by Attribute

2K/s

View exact numbers

Test name	Executions per second
✓ jQuery selector by Class	6,681 Ops/sec
jQuery selector by Element	6,523 Ops/sec
querySelectorAll by Element	4,682 Ops/sec
querySelectorAll by Class	4,649 Ops/sec
querySelectorAll by Attribute	3,852 Ops/sec
jQuery selector by Attribute	2,175 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>
<content id="demo">Hello World!</content>

Script Preparation code:

let components = '';
for (let i=0; i<10000; i+=1) {
    components += '<div class="component" data-component="component' + i + '">Content ' + i + '</div>'
}
document.getElementById("demo").innerHTML = components;

Tests:

querySelectorAll by Attribute
let components = document.querySelectorAll('[data-component]');
jQuery selector by Attribute
let components = $('[data-component]');
querySelectorAll by Class
let components = document.querySelectorAll('.component');
jQuery selector by Class
let components = $('.component');
querySelectorAll by Element
let components = document.querySelectorAll('div');
jQuery selector by Element
let components = $('div');