StreamSplit

Split a stream into a head and tail, or peek at the first n items in a stream. Both without iterating the tail of the enumerable.

Docs

iex> {head, tail} = StreamSplit.take_and_drop(Stream.cycle(1..3), 4)
iex> head
[1, 2, 3, 1]
iex> Enum.take(tail, 7)
[2, 3, 1, 2, 3, 1, 2]

iex> {head, new_enum} = StreamSplit.peek(Stream.cycle(1..3), 4)
iex> head
[1, 2, 3, 1]
iex> Enum.take(new_enum, 7)
[1, 2, 3, 1, 2, 3, 1]

The package can be installed as:

Add stream_split to your list of dependencies in mix.exs:

def deps do
  [{:stream_split, "~> 0.1.0"}]
end