Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

iOS Swift Functions and Optionals Optionals Review: Functions

halimat yusuf
halimat yusuf
2,290 Points

given the isDivisible function, create another function called is not divisible which also takes in two parameters, name

namely the dividend and the divisor. it should also return a bool. the goal of this function is to let you know whether a dividend is NOT divisible by the divisor( the function can return only a bool not an optional

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 {
     return dividend % divisor != 0 {      
}
isNotDivisible(4, divisor: 2) // false
isNotDivisible(5, divisor: 2) // true

1 Answer

Damien Watson
Damien Watson
27,419 Points

Just a few minor adjustments, you have the bulk of it correct.

The return on the isNotDivisible has an open bracket '{' which needs to be removed and the test cases below are missing the 'dividend' parameters.

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

func isNotDivisible(#dividend: Int, #divisor: Int) -> Bool {
     return dividend % divisor != 0     
}
isNotDivisible(dividend: 4, divisor: 2) // false
isNotDivisible(dividend: 5, divisor: 2) // true