Run results for: querySelector vs querySelectorAll vs getElementsByClassName vs querySelector (ID) vs getElementsByID

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Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.0.0 Safari/537.36
Chrome 118
Linux
Desktop
2 years ago
getElementsByClassName
4.1M/s
querySelector
2.1M/s
getElementsByID
1.7M/s
querySelectorAll
1.5M/s
querySelector (ID)
1.4M/s
View exact numbers
Test name Executions per second
✓ getElementsByClassName 4,110,457 Ops/sec
querySelector 2,126,841 Ops/sec
getElementsByID 1,717,758 Ops/sec
querySelectorAll 1,500,297 Ops/sec
querySelector (ID) 1,368,846 Ops/sec
HTML Preparation code:
Tests: