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Run results for: querySelector vs querySelectorAll vs getElementsByClassName vs querySelector (ID) vs getElementsByID — (getElementsByClassName sem .(ponto))

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.130 Safari/537.36
Chrome 79
Mac OS X 10.15.2
Desktop
4 years ago
Test name Executions per second
querySelector 4160094.0 Ops/sec
querySelectorAll 1683974.0 Ops/sec
getElementsByClassName 4936645.0 Ops/sec
querySelector (ID) 2898815.0 Ops/sec
getElementsByID 5705007.0 Ops/sec
Website performance monitoring
HTML Preparation code:
Tests:

  • querySelector

  • querySelectorAll

  • getElementsByClassName

  • querySelector (ID)

  • getElementsByID