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/122.0.0.0 Safari/537.36

Browser: Chrome 122

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

[0]

31.8M/s

[10]

31.5M/s

charCodeAt(0)

31.5M/s

charCodeAt(300)

31.3M/s

View exact numbers

Test name	Executions per second
✓ [0]	31,786,564 Ops/sec
[10]	31,543,690 Ops/sec
charCodeAt(0)	31,459,262 Ops/sec
charCodeAt(300)	31,317,798 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]