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Run results for: getElementById vs querySelector

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Run details:
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Mobile Safari/537.36 EdgA/133.0.0.0
Chrome Mobile 133
Android
Mobile
one month ago
Test name Executions per second
getElementById 22383458.0 Ops/sec
querySelector 6222139.5 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;