Option type compatible with comprehensions in Elixr?

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  1. Yes, or with with if you want an else, but you’ll want to make the tagged typed be ok: value and error: reason (which is closer to a result type, but it’s a limitation of elixir tuple lists in that they are always tuples). Traditionally {:ok, value} and :error is the “option” type in Elixir, where {:ok, value} and {:error, reason} is the “result” type in Elixir.

  2. Oh yes, quite a lot, I’m personally a fan of expede’s libraries if you want the full haskell/scala like interfaces. There is also another library made by the same author (not at that link) that is more simple and just works with the usual elixir/erlang forms as well.