Functional FizzBuzz

fizzbuzz.ex

defmodule FizzBuzz do
  def upto(n) when n > 0, do: 1..n |> Enum.map(&fizzbuzz/1)

  defp fizzbuzz(n) when rem(n, 15) == 0, do: "FizzBuzz"
  defp fizzbuzz(n) when rem(n, 3)  == 0, do: "Fizz"
  defp fizzbuzz(n) when rem(n, 5)  == 0, do: "Buzz"
  defp fizzbuzz(n), do: n
end

Fizz buzz

Vote