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Run results for: QuerySelector vs QuerySelectorAll vs getElementsByClassName

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36
Chrome 78
Mac OS X 10.13.6
Desktop
4 years ago
Test name Executions per second
querySelector 3575971.0 Ops/sec
querySelectorAll 1347253.0 Ops/sec
getElementsByClassName 5042756.0 Ops/sec
Website performance monitoring
HTML Preparation code:
Tests:

  • querySelector

  • querySelectorAll

  • getElementsByClassName