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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/97.0.4692.71 Safari/537.36
Chrome 97
Windows
Desktop
2 years ago
Test name Executions per second
querySelector 3978056.0 Ops/sec
querySelectorAll 1783096.0 Ops/sec
getElementsByClassName 4836678.0 Ops/sec
querySelector (ID) 2722320.0 Ops/sec
getElementsByID 3878272.0 Ops/sec
Website performance monitoring
HTML Preparation code:
Tests:

  • querySelector

  • querySelectorAll

  • getElementsByClassName

  • querySelector (ID)

  • getElementsByID