fizzbuzz.swift

// Playground - noun: a place where people can play

func fizzBuzz1(i: Int) -> String {
    switch (i % 5, i % 3) {
    case (0, 0):
        return "FuzzBuzz"
    case (0, _):
        return "Buzz"
    case (_, 0):
        return "Fizz"
    default:
        return String(i)
    }
}

// for s in Array(1...100).map(fizzBuzz1) { println(s) }

func fizzBuzz2(
    i: Int,
    fizz: String = "Fizz",
    buzz: String = "Buzz"
    ) -> String {
        switch (i % 5, i % 3) {
        case (0, 0):
            return fizz + buzz
        case (0, _):
            return buzz
        case (_, 0):
            return fizz
        default:
            return String(i)
        }
}

// for i in 1...100 { println(fizzBuzz2(i)) }

func fizzBuzz3(
    fizz: Int -> String = { _ in "Fizz" },
    buzz: Int -> String = { _ in "Buzz" },
    fizzbuzz: Int -> String = { _ in "FizzBuzz" },
    other: Int -> String = { String($0) }
    ) -> Int -> String {
        return { i in
            switch (i % 5, i % 3) {
            case (0, 0):
                return fizzbuzz(i)
            case (0, _):
                return buzz(i)
            case (_, 0):
                return fizz(i)
            default:
                return other(i)
            }
        }
}

// for s in Array(1...100).map(fizzBuzz3()) { println(s) }
// for s in Array(1...100).map(fizzBuzz3(fizzbuzz: { String(-$0) })) { println(s) }

func fizzBuzz4(
    fizzCondition: Int -> Bool = { $0 % 3 == 0 },
    buzzCondition: Int -> Bool = { $0 % 5 == 0 },
    fizz: Int -> String = { _ in "Fizz" },
    buzz: Int -> String = { _ in "Buzz" },
    fizzbuzz: Int -> String = { _ in "FizzBuzz" },
    other: Int -> String = { String($0) }
    ) -> Int -> String {
        return { i in
            switch (buzzCondition(i), fizzCondition(i)) {
            case (true, true):
                return fizzbuzz(i)
            case (true, _):
                return buzz(i)
            case (_, true):
                return fizz(i)
            default:
                return other(i)
            }
        }
}

// for s in Array(1...100).map(fizzBuzz4()) { println(s) }
// for s in Array(1...100).map(fizzBuzz4(buzzCondition: { $0 % 7 == 0 })) { println(s) }