Run results for: charCodeAt vs []

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36

Browser: Chrome 121

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

charCodeAt(300)

34.5M/s

[10]

34.5M/s

[0]

34.4M/s

charCodeAt(0)

34.4M/s

View exact numbers

Test name	Executions per second
✓ charCodeAt(300)	34,513,248 Ops/sec
[10]	34,463,404 Ops/sec
[0]	34,443,676 Ops/sec
charCodeAt(0)	34,437,248 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]