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Run results for: FIND SINGLE ELEMENT: querySelector(ID, TagName e Class) vs getElementsByClassName vs getElementsByID vs getElementsByTagName — (getElementsByClassName sem .(ponto))

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36
Chrome 75
Windows
Desktop
4 years ago
Test name Executions per second
querySelector (Class) 2940005.0 Ops/sec
getElementsByClassName 2987932.0 Ops/sec
querySelector (ID) 1928824.0 Ops/sec
getElementsByID 3897703.0 Ops/sec
getElementsByTagName 3003226.0 Ops/sec
querySelector (TagName) 2962974.0 Ops/sec
Website performance monitoring
HTML Preparation code:
Tests:

  • querySelector (Class)

  • getElementsByClassName

  • querySelector (ID)

  • getElementsByID

  • getElementsByTagName

  • querySelector (TagName)