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 (Macintosh; Intel Mac OS X 10.15; rv:136.0) Gecko/20100101 Firefox/136.0

Browser: Firefox 136

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

jQuery selector by Class

16K/s

jQuery selector by Element

11K/s

querySelectorAll by Attribute

10K/s

querySelectorAll by Class

10K/s

querySelectorAll by Element

8K/s

jQuery selector by Attribute

6K/s

View exact numbers

Test name	Executions per second
✓ jQuery selector by Class	16,261 Ops/sec
jQuery selector by Element	10,533 Ops/sec
querySelectorAll by Attribute	9,917 Ops/sec
querySelectorAll by Class	9,805 Ops/sec
querySelectorAll by Element	8,082 Ops/sec
jQuery selector by Attribute	6,088 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');