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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 (Linux; Android 9; Unspecified Device) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.0.0 Mobile Safari/537.36
Chrome Mobile 92
Android
Mobile
2 years ago
Test name Executions per second
querySelector 1665830.0 Ops/sec
querySelectorAll 761565.6 Ops/sec
getElementsByClassName 2404330.0 Ops/sec
querySelector (ID) 1293421.0 Ops/sec
getElementsByID 1682821.0 Ops/sec
Website performance monitoring
HTML Preparation code:
Tests:

  • querySelector

  • querySelectorAll

  • getElementsByClassName

  • querySelector (ID)

  • getElementsByID