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:141.0) Gecko/20100101 Firefox/141.0
Firefox 141
Windows
Desktop
one year ago
querySelector (ID)
6.3M/s
getElementsByClassName
6.2M/s
querySelector
4.5M/s
getElementsByID
4.2M/s
querySelectorAll
2.0M/s
View exact numbers
Test name Executions per second
✓ querySelector (ID) 6,262,328 Ops/sec
getElementsByClassName 6,197,496 Ops/sec
querySelector 4,549,052 Ops/sec
getElementsByID 4,168,836 Ops/sec
querySelectorAll 2,016,939 Ops/sec
HTML Preparation code:
Tests: