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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/119.0.0.0 Safari/537.36
Chrome 119
Windows
Desktop
6 months ago
Test name Executions per second
querySelector 4038686.0 Ops/sec
querySelectorAll 1754509.0 Ops/sec
getElementsByClassName 5041690.0 Ops/sec
querySelector (ID) 2506481.0 Ops/sec
getElementsByID 4566357.0 Ops/sec
Website performance monitoring
HTML Preparation code:
Tests:

  • querySelector

  • querySelectorAll

  • getElementsByClassName

  • querySelector (ID)

  • getElementsByID