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/133.0.0.0 Safari/537.36

Browser: Chrome 133

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

parseInt a number

110.1M/s

unery convert to number from number

109.8M/s

toString a number

27.1M/s

toString a string

25.9M/s

unery convert to number from string

18.1M/s

parseInt a string

11.4M/s

View exact numbers

Test name	Executions per second
✓ parseInt a number	110,082,160 Ops/sec
unery convert to number from number	109,841,088 Ops/sec
toString a number	27,112,506 Ops/sec
toString a string	25,938,566 Ops/sec
unery convert to number from string	18,087,460 Ops/sec
parseInt a string	11,379,526 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);