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

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:128.0) Gecko/20100101 Firefox/128.0
Firefox 128
Windows
Desktop
one year ago
getElementsByClassName
5.1M/s
getElementsByID
5.0M/s
querySelector (ID)
2.5M/s
querySelector
2.0M/s
querySelectorAll
1.2M/s
View exact numbers
Test name Executions per second
✓ getElementsByClassName 5,051,222 Ops/sec
getElementsByID 4,977,454 Ops/sec
querySelector (ID) 2,508,148 Ops/sec
querySelector 2,027,985 Ops/sec
querySelectorAll 1,225,209 Ops/sec
HTML Preparation code:
Tests: