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iOS Swift Functions and Optionals Optionals Review: Functions

What should I do?

How should I change this code to see if the dividend is NOT divisible by the divisor?

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
} else {
return nil
}
}

1 Answer

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 == 1 {
        return true
    } else {
        return false
    }
}