Run results for: charAt vs String.fromCharCode

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

charAt

141.5M/s

String.fromCharCode

139.5M/s

View exact numbers

Test name	Executions per second
✓ charAt	141,524,144 Ops/sec
String.fromCharCode	139,547,296 Ops/sec

Script Preparation code:

const string = 'abahdbashjdbs'
const charCode = string.charCodeAt(5)
const index = 5

Tests: