Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36 Edg/128.0.0.0
Chrome 128
Windows
Desktop
4 months ago
Test name Executions per second
getElementById 5168755.5 Ops/sec
querySelector 3030703.5 Ops/sec
HTML Preparation code:
AخA
 
1
<div id="testElement"></div>
Tests:
  • getElementById

     
    var el = document.getElementById('testElement');
    var className = el.className;
  • querySelector

     
    var el = document.querySelector('#testElement');
    var className = el.className;