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

14K/s

querySelectorAll by Class

13K/s

jQuery selector by Element

12K/s

querySelectorAll by Element

11K/s

querySelectorAll by Attribute

10K/s

jQuery selector by Attribute

7K/s

View exact numbers

Test name	Executions per second
✓ jQuery selector by Class	14,292 Ops/sec
querySelectorAll by Class	12,770 Ops/sec
jQuery selector by Element	11,561 Ops/sec
querySelectorAll by Element	10,563 Ops/sec
querySelectorAll by Attribute	10,266 Ops/sec
jQuery selector by Attribute	6,638 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');