How to make a simple division of Double by Int in Swift?

Question

Looking at various posts on this topic but still no luck. Is there a simple way to make division/conversion when dividing Double (or Float) with Int? Here is a simple example in playground returning and error "Double is not convertible to UInt8".

    var score:Double = 3.00
var length:Int = 2  // it is taken from some an array lenght and does not return decimal or float

var result:Double = (score / length )

Answer 1

Cast the int to double with var result:Double=(score/Double(length)) What this will do is before computing the division it will create a new Double variable with int inside parentheses hence constructor like syntax.

Answer 2

You cannot combine or use different variable types together. You need to convert them all to the same type, to be able to divide them together. The easiest way I see to make that happen, would be to make the Int a Double. You can do that quite simply do that by adding a ".0" on the end of the Integer you want to convert.

Also, FYI: Floats are pretty rarely used, so unless you're using them for something specific, its also just more fluid to use more common variables.

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