Swift Language Functions Returning Values
Example
Functions can return values by specifying the type after the list of parameters.
func findHypotenuse(a: Double, b: Double) -> Double
{
return sqrt((a * a) + (b * b))
}
let c = findHypotenuse(3, b: 5)
//c = 5.830951894845301
Functions can also return multiple values using tuples.
func maths(number: Int) -> (times2: Int, times3: Int)
{
let two = number * 2
let three = number * 3
return (two, three)
}
let resultTuple = maths(5)
//resultTuple = (10, 15)
