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A comment on I made a Phoenix webapp as a veteran Rails dev. Parent comment

Re:I made a Phoenix webapp as a veteran Rails dev by hartator on Sunday May 21, 2017 @02:17PM (#14388389)
Can you provide a minimal example where functional clearly overtake oop?

Bad oop is clearly inferior to good functional. ie React. But if OOP is able to do functional as well, shouldn't OOP win on the long run?

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Re:I made a Phoenix webapp as a veteran Rails dev by easychris on Sunday May 21, 2017 @03:14PM (#14388698)
I think it's also about the ecosystem. With Elixir all third party packages etc. can be relied on having no side-effects / immutability.

If you try to code functional in an OOP language, you would have to make sure that no third party modules (or coworkers accidentally) write code that "misbehaves" in such aspects. Just like you currently have to make sure that the Ruby code you use is threadsafe.

With immutability you gain all those features baked into Erlang/OTP (scalability, reliability).

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