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

Go to the benchmark
Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:137.0) Gecko/20100101 Firefox/137.0
Firefox 137
Windows
Desktop
one year ago
getElementsByID
6.6M/s
getElementsByClassName
6.5M/s
querySelector
4.0M/s
querySelector (ID)
3.8M/s
querySelectorAll
2.0M/s
View exact numbers
Test name Executions per second
✓ getElementsByID 6,632,154 Ops/sec
getElementsByClassName 6,548,664 Ops/sec
querySelector 3,972,099 Ops/sec
querySelector (ID) 3,771,852 Ops/sec
querySelectorAll 2,001,376 Ops/sec
HTML Preparation code:
Tests: