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:123.0) Gecko/20100101 Firefox/123.0

Browser: Firefox 123

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

jQuery selector by Element

11K/s

jQuery selector by Class

10K/s

querySelectorAll by Element

10K/s

querySelectorAll by Class

9K/s

querySelectorAll by Attribute

8K/s

jQuery selector by Attribute

5K/s

View exact numbers

Test name	Executions per second
✓ jQuery selector by Element	10,594 Ops/sec
jQuery selector by Class	10,030 Ops/sec
querySelectorAll by Element	9,662 Ops/sec
querySelectorAll by Class	9,209 Ops/sec
querySelectorAll by Attribute	8,273 Ops/sec
jQuery selector by Attribute	4,697 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');