I Challenge you: Implement containers!

Chat & Discussions Discussions
,
17

I believe we are talking about the same thing, something akin to:

iex> original_map = %{a: 1, b: 2, c: 3}
iex> {:ok, {item, rest_map}} = Extractable.extract(original_map)
{:ok, {{:c, 3}, %{a: 1, b: 2}}}
iex> {:ok, {item, rest_map}} = Extractable.extract(rest_map)
{:ok, {{:a, 1}, %{b: 2}}}
iex> {:ok, {item, rest_map}} = Extractable.extract(rest_map)
{:ok, {{:b, 2}, %{}}}
iex> Extractable.extract(rest_map)
:error