Checking if a double value is an integer - Swift

Question

I need to check if a double-defined variable is convertible to Int without losing its value. This doesn\'t work because they are of different types:

if self.         


        

Answer 1

A small extension to check for this:

extension FloatingPoint {
    var isInt: Bool {
        return floor(self) == self
    }
}

Then just do

let anInt = 1.isInt
let nonInt = 3.142.isInt