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Run results for: querySelector vs getElementsByName vs getElementById vs getElementsByClassName

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0) Gecko/20100101 Firefox/86.0
Firefox 86
Windows
Desktop
4 years ago
Test name Executions per second
querySelector 3144849.0 Ops/sec
getElementsByName 5998045.5 Ops/sec
getElementById 5985357.5 Ops/sec
getElementsByClassName 5914332.5 Ops/sec
HTML Preparation code:
AخA
 
1
<div name='test' id='test' class='test'></div>
Tests:

  • querySelector

     
    document.querySelector('#test')

  • getElementsByName

     
    document.getElementsByName('div[name="#test"]')

  • getElementById

     
    document.getElementById('test')

  • getElementsByClassName

     
    document.getElementsByClassName(".test")