Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:87.0) Gecko/20100101 Firefox/87.0
Firefox 87
Windows
Desktop
3 years ago
Test name Executions per second
regexp .test() 10148155.0 Ops/sec
string .match() 4726768.0 Ops/sec
indexOf === 0 11242288.0 Ops/sec
string .startsWith() 20954602.0 Ops/sec
Script Preparation code:
Tests:
  • regexp .test()

  • string .match()

  • indexOf === 0

  • string .startsWith()