Benchmark: parseInt vs toString vs unary(+)

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);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
parseInt a number
parseInt a string
toString a number
toString a string
unery convert to number from number
unery convert to number from string

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 2 months ago)

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/OS: Chrome 120 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
parseInt a number	1780616.0 Ops/sec
parseInt a string	1577565.0 Ops/sec
toString a number	13779200.0 Ops/sec
toString a string	12442880.0 Ops/sec
unery convert to number from number	25786960.0 Ops/sec
unery convert to number from string	9704805.0 Ops/sec

parseInt vs toString vs unary(+) (version: 0)

Comparing performance of: parseInt a number vs parseInt a string vs toString a number vs toString a string vs unery convert to number from number vs unery convert to number from string

Created: 3 years ago by: Guest

Jump to the latest result

parseInt a number

parseInt a string

toString a number

toString a string

unery convert to number from number

unery convert to number from string

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A