MeasureThat.net

Run results for: char index vs charAt() vs slice() vs startsWith() vs RegExp --

Compare methods for testing string's beggining character.

Go to the benchmark
Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.192 Safari/537.36
Chrome 88
Windows
Desktop
3 years ago
Test name Executions per second
character index 3949365.8 Ops/sec
charAt() 3937550.2 Ops/sec
startsWith() 3951600.5 Ops/sec
slice() 3698949.2 Ops/sec
RegExp 3334467.0 Ops/sec
Script Preparation code:
Tests:

  • character index

  • charAt()

  • startsWith()

  • slice()

  • RegExp

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