Run results for: charCodeAt vs []

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 16_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/108.0.5359.52 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 108

Operating system: iOS 16.0

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
charCodeAt(0)	22176462.0 Ops/sec
charCodeAt(300)	22051044.0 Ops/sec
[0]	21274544.0 Ops/sec
[10]	21128652.0 Ops/sec

Script Preparation code:

var str = "some string heresome string heresome string heresome string heresome string heresome string heresome string heresome string heresome string heresome string heresome string heresome string heresome string heresome string heresome string heresome string heresome string heresome string heresome string here"

Tests:

charCodeAt(0)
str.charCodeAt(0)
charCodeAt(300)
str.charCodeAt(300)
[0]
str[0]
[10]
str[300]

Run results for: charCodeAt vs []

charCodeAt(0)

charCodeAt(300)

[0]

[10]