MeasureThat.net

Run results for: querySelector vs getElementsByClassName[0]

Slight alteration because querySelector only returns a first element.

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Run details:
Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.45 Safari/537.36
Chrome 96
Windows 7
Desktop
3 years ago
Test name Executions per second
querySelector 1956924.1 Ops/sec
getElementsByClassName 1353962.5 Ops/sec
HTML Preparation code:
Tests:

  • querySelector

  • getElementsByClassName

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