MeasureThat.net

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 (Windows NT 10.0; Win64; x64; rv:134.0) Gecko/20100101 Firefox/134.0
Firefox 134
Windows
Desktop
2 months ago
Test name Executions per second
character index 103344000.0 Ops/sec
charAt() 100044696.0 Ops/sec
slice() 99789032.0 Ops/sec
substr() 100681736.0 Ops/sec
Script Preparation code:
Tests:

  • character index

  • charAt()

  • slice()

  • substr()