Rounding a double value to x number of decimal places in swift

Question

Can anyone tell me how to round a double value to x number of decimal places in Swift?

I have:

var totalWorkTimeInHours = (totalWorkTime/60/60)
         


        

Answer 1

In Swift 5.3 and Xcode 12:

let pi: Double = 3.14159265358979
String(format:"%.2f", pi)

Example:

PS.: It still the same since Swift 2.0 and Xcode 7.2