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.

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Mobile Safari/537.36 EdgA/138.0.0.0

Browser: Chrome Mobile 138

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Benchmark engine: Benchmark.js

querySelectorAll by Element

5K/s

querySelectorAll by Class

5K/s

querySelectorAll by Attribute

3K/s

jQuery selector by Element

935/s

jQuery selector by Class

895/s

jQuery selector by Attribute

690/s

View exact numbers

Test name	Executions per second
✓ querySelectorAll by Element	5,228 Ops/sec
querySelectorAll by Class	4,587 Ops/sec
querySelectorAll by Attribute	2,750 Ops/sec
jQuery selector by Element	935 Ops/sec
jQuery selector by Class	895 Ops/sec
jQuery selector by Attribute	690 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');