JavaScript - How To Detect Number As A Decimal (Including 1.0)

Question

It feels like I am missing something obvious here. This has been asked a number of times - and the answer usually boils down to:

var num = 4.5;
num % 1 === 0; /         


        

Answer 1

Well, as far as the compiler is concerned, there is no difference between 1.0 and 1, and because there is no difference, it is impossible to tell the difference between them. You should change it from 1.0 to 100 for the the percentage thing. That might fix it.