Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:89.0) Gecko/20100101 Firefox/89.0
Firefox 89
Windows
Desktop
3 years ago
Test name Executions per second
regexp .test() 23440634.0 Ops/sec
string .match() 13209145.0 Ops/sec
indexOf === 0 22279814.0 Ops/sec
string .startsWith() 47709728.0 Ops/sec
Script Preparation code:
Tests:
  • regexp .test()

  • string .match()

  • indexOf === 0

  • string .startsWith()