Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.83 Safari/537.36
Chrome 99
Mac OS X 10.15.7
Desktop
2 years ago
Test name Executions per second
regexp .test() 7117327.0 Ops/sec
string .match() 6057289.0 Ops/sec
indexOf === 0 13242570.0 Ops/sec
string .startsWith() 9565702.0 Ops/sec
Script Preparation code:
Tests:
  • regexp .test()

  • string .match()

  • indexOf === 0

  • string .startsWith()