Run results for: charCodeAt vs []

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36

Browser: Chrome 130

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

charCodeAt(300)

17.1M/s

[10]

16.6M/s

charCodeAt(0)

16.2M/s

[0]

15.8M/s

View exact numbers

Test name	Executions per second
✓ charCodeAt(300)	17,060,688 Ops/sec
[10]	16,630,600 Ops/sec
charCodeAt(0)	16,150,125 Ops/sec
[0]	15,819,156 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]