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Run results for: char index vs charAt() vs slice() vs substr()

Compare methods for testing string's beggining character.

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Run details:
Mozilla/5.0 (Linux; Android 12; CPH2211) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Mobile Safari/537.36
Chrome Mobile 108
Android
Mobile
one year ago
Test name Executions per second
character index 3345259.0 Ops/sec
charAt() 3356170.8 Ops/sec
slice() 3323640.5 Ops/sec
substr() 3275594.5 Ops/sec
Script Preparation code:
Tests:

  • character index

  • charAt()

  • slice()

  • substr()

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