Run results for: DataAttribute vs Class Selector vs ID Selector / JQuery

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/130.0.6723.90 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 130

Operating system: iOS 18.1

Device Platform: Mobile

Date tested: one year ago

4.3M/s

Class

2.2M/s

data attribute

1.4M/s

View exact numbers

Test name	Executions per second
✓ ID	4,278,410 Ops/sec
Class	2,163,874 Ops/sec
data attribute	1,381,483 Ops/sec

HTML Preparation code:

<div class="hello" id="hello" data-hello>Hello</div>	
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>

Tests:

Class
$('.hello');
ID
$('#hello');
data attribute
$('[data-hello]');