Run results for: charCodeAt vs []

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36

Browser: Chrome 137

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

charCodeAt(300)

157.9M/s

charCodeAt(0)

157.6M/s

[0]

154.6M/s

[10]

145.2M/s

View exact numbers

Test name	Executions per second
✓ charCodeAt(300)	157,864,384 Ops/sec
charCodeAt(0)	157,620,080 Ops/sec
[0]	154,631,984 Ops/sec
[10]	145,157,776 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]