MeasureThat.net

Run results for: .startsWith() vs .test() vs .match() vs .indexOf()

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.164 Safari/537.36
Chrome 91
Windows
Desktop
3 years ago
Test name Executions per second
regexp .test() 7450067.0 Ops/sec
string .match() 6358565.0 Ops/sec
indexOf === 0 13261188.0 Ops/sec
string .startsWith() 9454162.0 Ops/sec
Script Preparation code:
Tests:

  • regexp .test()

  • string .match()

  • indexOf === 0

  • string .startsWith()