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iOS Swift Functions and Optionals Optionals Review: Functions

im still stuck on the last challenge

I need help with what to output it asks - Given the isDivisible function, create another function called isNotDivisible which also takes in two parameters, namely the dividend and the divisor. It should also return a Bool. The goal of this new function is to let you know whether a dividend is NOT divisible by the divisor. (Note: the function should return only a Bool and not an optional.)

2 Answers

Chris Shaw
Chris Shaw
26,650 Points

Hi Brandon,

The challenge is asking for the polar opposite of the is isDivisible function, so instead of looking for a truthy value first we look for the falsy which results in the same true/false order like we see in the isDivisible function.

The long way

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

The short way

func isNotDivisible(#dividend: Int, #divisor: Int) -> Bool {
  return dividend % divisor != 0
}

Thanks