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

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Run details:
Mozilla/5.0 (iPhone; CPU iPhone OS 17_6_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Mobile/15E148 Safari/604.1
Mobile Safari 17
iOS 17.6.1
Mobile
one year ago
Test name Executions per second
regexp .test() 11829691.0 Ops/sec
string .match() 7579437.5 Ops/sec
indexOf === 0 11797191.0 Ops/sec
string .startsWith() 9801332.0 Ops/sec
Script Preparation code:
Tests:

  • regexp .test()

  • string .match()

  • indexOf === 0

  • string .startsWith()