Zip 🤐

A simple library to enable elementwise operations on collections. Use it like this:

Zip.add([1], [1])      # => [2]
Zip.multiply([1], [1]) # => [1]
Zip.subtract([1], [1]) # => [0]
Zip.divide([10], [2])  # => [5]
Zip.apply([5], [2], Integer, :mod)  # => [1]
Zip.apply([[1, 2], [3, 4]], [7, 7], Enum, :intersperse) #=> [[1, 7, 2], [3, 7, 4]]
Zip.apply([[1, 2, 3, 4], [1, 2, 3, 4]], [2, 3], Enum, :map_every, [fn x -> x * 10 end])  # => [[10, 2, 30, 4], [10, 2, 3, 40]]

Roadmap

1. Enable arbitrary operations - either user defined or callbacks?
2. Enable a wider range of elements in the list - support decimal, e.g.
3. Probably part of 2 - ensure elementwise pairs are of the same type. Do we need to? As long as the function accepts them fine
4. Stream dat data
5. Mad speed gainz?
6. Zip nth? Or interleave / intersperse type functions.

Installation

Available in Hex, install by adding zip to your list of dependencies in mix.exs:

def deps do
  [
    {:zip, "~> 0.1.1"}
  ]
end

Docs can be found here: https://hexdocs.pm/zip 👩‍⚕️ 👩‍⚕️