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

Compare methods for testing string's beggining character.

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36
Chrome 121
Windows
Desktop
9 months ago
Test name Executions per second
character index 15230623.0 Ops/sec
charAt() 15272254.0 Ops/sec
startsWith() 15320079.0 Ops/sec
slice() 15289878.0 Ops/sec
RegExp 12558911.0 Ops/sec
Script Preparation code:
Tests:

  • character index

  • charAt()

  • startsWith()

  • slice()

  • RegExp

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