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

Compare methods for testing string's beggining character.

Go to the benchmark
Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:120.0) Gecko/20100101 Firefox/120.0
Firefox 120
Mac OS X 10.15
Desktop
2 years ago
Benchmark.js
character index
227.2M/s
charAt()
207.5M/s
substr()
173.8M/s
slice()
173.1M/s
View exact numbers
Test name Executions per second
✓ character index 227,229,696 Ops/sec
charAt() 207,504,480 Ops/sec
substr() 173,768,784 Ops/sec
slice() 173,050,576 Ops/sec
Script Preparation code:
Tests: