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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 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.55 Safari/537.36
Chrome 96
Mac OS X 10.15.6
Desktop
2 years ago
Test name Executions per second
querySelector 3312227.0 Ops/sec
querySelectorAll 1451076.0 Ops/sec
getElementsByClassName 3907805.0 Ops/sec
querySelector (ID) 1896897.0 Ops/sec
getElementsByID 3003955.0 Ops/sec
Website performance monitoring
HTML Preparation code:
Tests:

  • querySelector

  • querySelectorAll

  • getElementsByClassName

  • querySelector (ID)

  • getElementsByID