Run results for: parseInt vs toString vs unary(+)

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser: Chrome 120

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

unery convert to number from number

25.8M/s

toString a number

13.8M/s

toString a string

12.4M/s

unery convert to number from string

9.7M/s

parseInt a number

1.8M/s

parseInt a string

1.6M/s

View exact numbers

Test name	Executions per second
✓ unery convert to number from number	25,786,964 Ops/sec
toString a number	13,779,196 Ops/sec
toString a string	12,442,884 Ops/sec
unery convert to number from string	9,704,805 Ops/sec
parseInt a number	1,780,616 Ops/sec
parseInt a string	1,577,565 Ops/sec

Script Preparation code:

var numbers = [1, 12, 123, 1234, 12345, 123456, 1234567, 12345678, 123456789];
var strNumbers = ["1", "12", "123", "1234", "12345", "123456", "1234567", "12345678", "123456789"];

Tests:

parseInt a number
numbers.forEach(n => parseInt(n, 10));
parseInt a string
strNumbers.forEach(n => parseInt(n, 10));
toString a number
numbers.forEach(n => n.toString());
toString a string
strNumbers.forEach(n => n.toString());
unery convert to number from number
numbers.forEach(n => +n);
unery convert to number from string
strNumbers.forEach(n => +n);