Question

How to check if a double variable contains an integer and not a floating point in JavaScript

Answer 1

let d = 24278.0;

if (d == Math.floor(d)) {
    console.log("The double variable contains an integer");
}
else {
    console.log("The double variable contains a floating point");
}




/*
run:

The double variable contains an integer

*/

 

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Answer 2

const d = 12735423.0; 

console.log(Number.isInteger(d)); 




/*
run:

true 

*/

 

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