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/137.0.0.0 Safari/537.36

Browser: Chrome 137

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

charCodeAt(0)

224.0M/s

[10]

220.7M/s

charCodeAt(300)

219.8M/s

[0]

213.3M/s

View exact numbers

Test name	Executions per second
✓ charCodeAt(0)	224,015,040 Ops/sec
[10]	220,674,256 Ops/sec
charCodeAt(300)	219,766,960 Ops/sec
[0]	213,251,760 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]