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

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:139.0) Gecko/20100101 Firefox/139.0
Firefox 139
Mac OS X 10.15
Desktop
one year ago
getElementsByID
8.5M/s
getElementsByClassName
8.4M/s
querySelector
5.6M/s
querySelector (ID)
5.4M/s
querySelectorAll
2.8M/s
View exact numbers
Test name Executions per second
✓ getElementsByID 8,494,338 Ops/sec
getElementsByClassName 8,403,734 Ops/sec
querySelector 5,600,270 Ops/sec
querySelector (ID) 5,432,875 Ops/sec
querySelectorAll 2,793,330 Ops/sec
HTML Preparation code:
Tests: