Playing with ways to do fizz-buzz in Swift.

FizzBuzz.swift

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

import Foundation

func fizzable(_ num: Int) -> Bool {
    return num % 3 == 0
}

func buzzable(_ num: Int) -> Bool {
    return num % 5 == 0
}

func fizzBuzz(_ max: Int) -> [String] {
    
    var results = [String]()
    
    guard max > 0 else { return results }
    
    for i in 0...max {
        
        if fizzable(i) && buzzable(i) {
            results.append("FizzBuzz")
        } else if fizzable(i) {
            results.append("Fizz")
        } else if buzzable(i) {
            results.append("Buzz")
        } else {
            results.append(String(describing: i))
        }
    }
    
    return results
}

fizzBuzz(100)
    .forEach { print($0) }

var results = [Int]()
    .map { i -> String in
        if fizzable(i) && buzzable(i) {
            return "FizzBuzz"
        } else if fizzable(i) {
            return "Fizz"
        } else if buzzable(i) {
            return "Buzz"
        } else {
            return String(describing: i)
        }
    }