Maybe my PL history is wrong, but weren't interfaces made popular by java as a way to avoid C++ - style problems with multiple inheritance?
> When people talk about how similar are OOP and FP languages they miss the elephant in the room - immutability.
>> What elixir doesn't have is pass-by-reference
But immutability is not INHERENT to the FP style. In the strictest sense BEAM languages are not immutable, because message-passing is not state-safe, and there's also the Process library (and NIFs), but practically they are. Julia is also a very powerful FP language that isn't immutable by default, and Swift is an OO-ish? is it OO? language that is pass-by-value by default.
