Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Swift Functions and Optionals Optionals Review: Functions

Roderick Royce
Roderick Royce
1,236 Points

How do I adjust the function isNotDivisble to work with isDivisible? Optionals, functions, tuples, and bool are possible

The challenge gives me a lot of repeated information but how do I repeat variables and function terms and keep them working.

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
      }
}

if let result = isNotDivisble(dividend: 4, divisor: 3)
  println("Divisible")
  } else {
    println("Not Divisible")
}

1 Answer

Jhoan Arango
Jhoan Arango
14,575 Points

Hello Roderick Royce :

This is the answer you should have. Please notice the comment inside the function

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 false // here should be false since itโ€™s not divisible 
} else {
    return true  
    }
}