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Run results for:
Checking if number is integer
Compares using num % 1 to number.isInteger
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<iframe src="https://measurethat.net/Embed?id=588704" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36
Browser:
Chrome 133
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
Modulus 1
288.9 Ops/sec
Number.isInteger
407.7 Ops/sec
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; } }