Run results for: charCodeAt vs []

Run details:

User agent: Mozilla/5.0 (X11; CrOS aarch64 14150.74.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.114 Safari/537.36

Browser: Chrome 94

Operating system: Chrome OS 14150.74.0

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
charCodeAt(0)	4614597.5 Ops/sec
charCodeAt(300)	4592653.5 Ops/sec
[0]	4739948.0 Ops/sec
[10]	4751967.0 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]

Run results for: charCodeAt vs []

charCodeAt(0)

charCodeAt(300)

[0]

[10]