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/132.0.0.0 Safari/537.36

Browser: Chrome 132

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

[0]

160.0M/s

charCodeAt(0)

150.7M/s

[10]

146.4M/s

charCodeAt(300)

141.9M/s

View exact numbers

Test name	Executions per second
✓ [0]	160,017,136 Ops/sec
charCodeAt(0)	150,706,912 Ops/sec
[10]	146,410,432 Ops/sec
charCodeAt(300)	141,863,600 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]