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

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Run details:
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Mobile Safari/537.36
Chrome Mobile 121
Android
Mobile
2 years ago
getElementsByClassName
4.0M/s
getElementsByID
3.7M/s
querySelector
3.5M/s
querySelector (ID)
2.6M/s
querySelectorAll
1.7M/s
View exact numbers
Test name Executions per second
✓ getElementsByClassName 4,038,026 Ops/sec
getElementsByID 3,703,180 Ops/sec
querySelector 3,537,101 Ops/sec
querySelector (ID) 2,618,988 Ops/sec
querySelectorAll 1,652,528 Ops/sec
HTML Preparation code:
Tests: