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

Compare methods for testing string's beggining 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/119.0.0.0 Safari/537.36
Chrome 119
Mac OS X 10.15.7
Desktop
2 years ago
slice()
15.0M/s
character index
14.9M/s
charAt()
14.8M/s
View exact numbers
Test name Executions per second
✓ slice() 14,966,339 Ops/sec
character index 14,917,946 Ops/sec
charAt() 14,839,235 Ops/sec
Script Preparation code:
Tests: