Benchmark: Checking if number is integer

Script Preparation code:

var numbers = [];
for(let i = 0; i < 100000;i++)
{
	numbers.push(Math.random()*100000);
	numbers.push(Math.floor(Math.random()*100000));
}
numbers.sort( (a,b) => (0.5)-Math.random());

Tests:

Modulus 1
let integerCount = 0; for(let i = 0; i < numbers.length;i++) { if(!(numbers[i]%1)) { integerCount+=1; } }
Number.isInteger
let integerCount = 0; for(let i = 0; i < numbers.length;i++) { if(Number.isInteger(numbers[i])) { integerCount+=1; } }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Modulus 1
Number.isInteger

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 11 days ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36

Browser/OS: Chrome 123 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Modulus 1	50.7 Ops/sec
Number.isInteger	44.2 Ops/sec

Checking if number is integer (version: 0)

Compares using num % 1 to number.isInteger

Comparing performance of: Modulus 1 vs Number.isInteger

Created: one year ago by: Guest

Jump to the latest result

Modulus 1

Number.isInteger

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A