Run results for: String.charAt vs String.sub

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36

Browser: Chrome 143

Operating system: Windows

Device Platform: Desktop

Date tested: 3 months ago

Test name	Executions per second
String.charAt	258586.8 Ops/sec
String.sub	246021.1 Ops/sec

Script Preparation code:

str = ''
let i = 10 ** 3
while (--i) str = str + i

Tests: