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 (Android 14; Mobile; rv:126.0) Gecko/126.0 Firefox/126.0

Browser: Firefox Mobile 126

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Benchmark engine: Benchmark.js

jQuery selector by Class

4K/s

jQuery selector by Element

3K/s

querySelectorAll by Element

1K/s

querySelectorAll by Class

1K/s

querySelectorAll by Attribute

1K/s

jQuery selector by Attribute

768/s

View exact numbers

Test name	Executions per second
✓ jQuery selector by Class	3,718 Ops/sec
jQuery selector by Element	3,248 Ops/sec
querySelectorAll by Element	1,146 Ops/sec
querySelectorAll by Class	1,138 Ops/sec
querySelectorAll by Attribute	1,068 Ops/sec
jQuery selector by Attribute	768 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');