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Run results for: querySelector vs querySelectorAll vs getElementsByClassName vs querySelector (ID) vs getElementsByID

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36
Chrome 113
Windows
Desktop
one year ago
Test name Executions per second
querySelector 2506819.0 Ops/sec
querySelectorAll 1225614.0 Ops/sec
getElementsByClassName 3152719.0 Ops/sec
querySelector (ID) 1654318.0 Ops/sec
getElementsByID 3599200.0 Ops/sec
Website performance monitoring
HTML Preparation code:
Tests:

  • querySelector

  • querySelectorAll

  • getElementsByClassName

  • querySelector (ID)

  • getElementsByID