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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_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4293.2 Safari/537.36
Chrome 88
Mac OS X 10.15.7
Desktop
3 years ago
Test name Executions per second
querySelector 3706063.0 Ops/sec
querySelectorAll 1777878.0 Ops/sec
getElementsByClassName 4444178.0 Ops/sec
querySelector (ID) 2607892.0 Ops/sec
getElementsByID 3404577.0 Ops/sec
Website performance monitoring
HTML Preparation code:
Tests:

  • querySelector

  • querySelectorAll

  • getElementsByClassName

  • querySelector (ID)

  • getElementsByID