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

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Run details:
Mozilla/5.0 (Linux; Android 9; Unspecified Device) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.0.0 Mobile Safari/537.36
Chrome Mobile 90
Android
Mobile
3 years ago
Test name Executions per second
regexp .test() 2253741.0 Ops/sec
string .match() 1829617.0 Ops/sec
indexOf === 0 3406577.0 Ops/sec
string .startsWith() 2698309.0 Ops/sec
Website performance monitoring
Script Preparation code:
Tests:

  • regexp .test()

  • string .match()

  • indexOf === 0

  • string .startsWith()