RosettaCodeData/Task/Stack/Elixir/stack.ex

defmodule Stack do
  def new, do: []

  def empty?([]), do: true
  def empty?(_), do: false

  def pop([h|t]), do: {h,t}

  def push(h,t), do: [h|t]

  def top([h|_]), do: h
end