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iOS Swift Functions and Optionals Optionals Review: Functions

Chunhou Kok
Chunhou Kok
674 Points

Final Challenge task of Swift Functions & Optionals.

Hi, it's the challenge where I have to create an isNotDividible function.

I can't seem to be able to see what is wrong with my code. Can someone help?

Thanks!

divisible.swift
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 != 0 { 
        return true 
  } else {
      return false
      }
  }

2 Answers

Hi there,

There is a small typo in your method name - you've got an additional capital letter in there. That must be causing it as my solution looks identical to yours except for that.

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

An alternative solution would be:

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

That may be a little better, I think. It just returns the opposite of the original function.

Steve.