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

Without converting it to a string, you can round up to a number of decimal places like this:

let x:Double = 1234.5678
let numberOfPlaces:Double = 4.0
let powerOfTen:Double = pow(10.0, numberOfPlaces)
let targetedDecimalPlaces:Double = round((x % 1.0) * powerOfTen) / powerOfTen

Your output would be

0.5678