Run results for: DataAttribute vs Class Selector on body

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36

Browser: Chrome 121

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Class	2967007.5 Ops/sec
data attribute	2582077.5 Ops/sec

HTML Preparation code:

<body class="hello" data-hello>Hello</div>

AخA
 
<body class="hello" data-hello>Hello</div>  

Tests:

Class
document.body.classList.contains('hello')
document.body.classList.contains('hello')
data attribute
document.body.dataset.hello;
document.body.dataset.hello;