Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36
Chrome 141
Mac OS X 10.15.7
Desktop
6 months ago
Test name Executions per second
Using String.replace() 399.4 Ops/sec
Using String.substring() with a lastIndexOf() search 514.2 Ops/sec
Using String.substring() with a magic number 1254.4 Ops/sec
Using String.slice() 1315.7 Ops/sec
Using String.slice() without a pre-calculated suffix length 1318.7 Ops/sec
Script Preparation code:
Tests:
  • Using String.replace()

  • Using String.substring() with a lastIndexOf() search

  • Using String.substring() with a magic number

  • Using String.slice()

  • Using String.slice() without a pre-calculated suffix length