Run results for: DataAttribute vs Class Selector vs ID Selector

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36

Browser: Chrome 114

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

HTML Preparation code:

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

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

Tests:

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