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Run results for: getElementById vs querySelector vs getElementsByName

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.3 Safari/605.1.15
Safari 17
Mac OS X 10.15.7
Desktop
one year ago
Test name Executions per second
getElementById 5868315.5 Ops/sec
querySelector 3360567.8 Ops/sec
getElementsByName 5939290.5 Ops/sec
HTML Preparation code:
AخA
 
1
<div id="testElement" name="testElem"></div>
Tests:

  • getElementById

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

  • querySelector

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

  • getElementsByName

     
    var el = document.getElementsByName('testElem');
    var className = el.className;