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iOS Swift Functions and Optionals Optionals Review: Functions

Martin Franzner
Martin Franzner
3,300 Points

if not divisible

It says wants not divisible, so I changed the == 0, to > 0, then it says is true, which means is not divisible, but keeps me telling I`ve gotta have call the function and have the answer as a Bool

divisible.swift
func isNotDivisible(#dividend: Int, #divisor: Int) -> Bool? {
    if dividend % divisor > 0 {
        return true
    } else {
        return nil
    }
}

if let result = isNotDivisible( dividend: 10, divisor: 4) {
    println("Not Divisible")
} else {
    println("Divisible")
}

2 Answers

func isDivisible(#dividend: Int, #divisor: Int) -> Bool {
    if dividend % divisor == 0 {
        return true
    } else {
        return false
    }
}
func isNotDivisible(#dividend: Int, #divisor: Int) -> Bool {
    if dividend % divisor == 1 {
        return true
    } else {
        return false
    }
}
func isNotDivisible(#dividend: Int, #divisor: Int) -> Bool {
  if dividend % divisor != 0 {
    return true
    } else {
      return false
     }
 }