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

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Run details:
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:120.0) Gecko/20100101 Firefox/120.0
Firefox 120
Ubuntu
Desktop
2 years ago
getElementsByClassName
7.7M/s
getElementsByID
7.7M/s
querySelector (ID)
3.6M/s
querySelector
3.6M/s
querySelectorAll
1.6M/s
View exact numbers
Test name Executions per second
✓ getElementsByClassName 7,700,540 Ops/sec
getElementsByID 7,684,121 Ops/sec
querySelector (ID) 3,588,974 Ops/sec
querySelector 3,580,464 Ops/sec
querySelectorAll 1,600,150 Ops/sec
HTML Preparation code:
Tests: