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/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

[0]

91.1M/s

charCodeAt(0)

89.3M/s

charCodeAt(300)

88.6M/s

[10]

84.9M/s

View exact numbers

Test name	Executions per second
✓ [0]	91,081,376 Ops/sec
charCodeAt(0)	89,332,016 Ops/sec
charCodeAt(300)	88,562,472 Ops/sec
[10]	84,888,560 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]