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

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1.2 Safari/605.1.15
Safari 14
Mac OS X 10.14.6
Desktop
2 years ago
Test name Executions per second
regexp .test() 6040696.0 Ops/sec
string .match() 4154425.0 Ops/sec
indexOf === 0 5484244.0 Ops/sec
string .startsWith() 6515234.0 Ops/sec
Website performance monitoring
Script Preparation code:
Tests:

  • regexp .test()

  • string .match()

  • indexOf === 0

  • string .startsWith()