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

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36
Chrome 108
Mac OS X 10.15.7
Desktop
one year ago
Test name Executions per second
regexp .test() 16145210.0 Ops/sec
string .includes() 25624410.0 Ops/sec
indexOf === 0 25970920.0 Ops/sec
string .startsWith() 16983830.0 Ops/sec
Script Preparation code:
Tests:

  • regexp .test()

  • string .includes()

  • indexOf === 0

  • string .startsWith()