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

[10]

15.6M/s

charCodeAt(0)

15.4M/s

charCodeAt(300)

15.3M/s

[0]

15.0M/s

View exact numbers

Test name	Executions per second
✓ [10]	15,628,307 Ops/sec
charCodeAt(0)	15,380,850 Ops/sec
charCodeAt(300)	15,280,691 Ops/sec
[0]	15,031,990 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]