robdor

  fizzbuzz = fn(x) ->
    case {rem(x, 3) == 0, rem(x, 5) == 0} do
      {true, false} -> IO.puts "fizz"
      {false, true} -> IO.puts "buzz"
      {true, true}  -> IO.puts "fizzbuzz"
      _             -> IO.puts x
    end
  end

  Enum.each Range.new(1, num), fizzbuzz