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iOS Swift Functions and Optionals Optionals Review: Functions

Josh Schlabach
Josh Schlabach
1,771 Points

What

Why won't this work? :(

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 false }


}

1 Answer

This may not be the best or correct answer, but since it is throwing an error because the function expects a return of Bool and because you have an if statement it is expecting and else clause with it. This solution should work.

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

}

// This will return true
var answer = isNotDivisible(dividend: 5, divisor: 5)

// However, this will return false
var answer = isNotDivisible(dividend: 5, divisor: 3)