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

Compare methods for testing string's beginning character.

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36
Chrome 112
Mac OS X 10.15.7
Desktop
one year ago
Test name Executions per second
character index 4644265.0 Ops/sec
charAt() 4504208.0 Ops/sec
slice() 4721418.0 Ops/sec
at() 4649898.0 Ops/sec
Website performance monitoring
Script Preparation code:
Tests:

  • character index

  • charAt()

  • slice()

  • at()