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; rv:109.0) Gecko/20100101 Firefox/119.0
Firefox 119
Linux
Desktop
2 years ago
getElementsByID
9.8M/s
getElementsByClassName
9.5M/s
querySelector
5.0M/s
querySelector (ID)
4.9M/s
querySelectorAll
2.4M/s
View exact numbers
Test name Executions per second
✓ getElementsByID 9,751,069 Ops/sec
getElementsByClassName 9,461,540 Ops/sec
querySelector 4,985,042 Ops/sec
querySelector (ID) 4,926,229 Ops/sec
querySelectorAll 2,413,829 Ops/sec
HTML Preparation code:
Tests: