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

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:121.0) Gecko/20100101 Firefox/121.0
Firefox 121
Windows
Desktop
2 years ago
getElementsByClassName
5.0M/s
getElementsByID
4.9M/s
querySelector (ID)
2.5M/s
querySelector
2.1M/s
querySelectorAll
1.1M/s
View exact numbers
Test name Executions per second
✓ getElementsByClassName 4,962,323 Ops/sec
getElementsByID 4,887,820 Ops/sec
querySelector (ID) 2,531,602 Ops/sec
querySelector 2,103,275 Ops/sec
querySelectorAll 1,053,677 Ops/sec
HTML Preparation code:
Tests: