Getting the decimal part of a double in Swift

Question

I\'m trying to separate the decimal and integer parts of a double in swift. I\'ve tried a number of approaches but they all run into the same issue...

let x:         


        

Answer 1

It's impossible to create a solution that will work for all Doubles. And if the other answers ever worked, which I also believe is impossible, they don't anymore.

let _5678 = 1234.5678.description.drop { $0 != "." } .description // ".5678"
Double(_5678)  // 0.5678

let _567 = 1234.567.description.drop { $0 != "." } .description // ".567"
Double(_567) // 0.5669999999999999