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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_13_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1.2 Safari/605.1.15
Safari 13
Mac OS X 10.13.6
Desktop
one year ago
Test name Executions per second
querySelector 1773784.0 Ops/sec
querySelectorAll 1021528.0 Ops/sec
getElementsByClassName 2155740.0 Ops/sec
querySelector (ID) 1680121.0 Ops/sec
getElementsByID 2237647.0 Ops/sec
Website performance monitoring
HTML Preparation code:
Tests:

  • querySelector

  • querySelectorAll

  • getElementsByClassName

  • querySelector (ID)

  • getElementsByID