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Discussion on: Object-Oriented Programming Strikes Back!

mortoray profile image
edA‑qa mort‑ora‑y

A modern application shouldn't be written without using concepts from a variety of different paradigms. I'm trying to keep a good overview of them here.

That said, I don't think functional programming is good at modelling the state transitions of a system, and should be limited to calculation domains where it is a preferred choice. The problem with state modelling via state variables and monads is that it doesn't actually model what the system is doing anymore. It's a bad mapping from an imperative, concurrent, domain into a functional one.

The relation between learning curve and level of errors is just wrong. By such logic I could start writing my C++ using nothing but Korean language for comments and symbol names and my programming would suddenly have fewer errors. An inappropriate choice of paradigm is what leads to errors, and this is the reason why all apps generally use bits of all paradigms.

riccardo_cardin profile image
Riccardo Cardin Author

I agree with the first part of your comment, that reflects exactly the same conclusions I came to. However, you misunderstood the graph that relates learning curves with probability of introducing an error in a program.

rubberduck profile image
Christopher McClellan

I'm not sure I can agree with your assertion that state transitions are less clean in FP. In OOP, we model state transitions by delegating to objects that perform an appropriate action for the current state. In FP we model state transitions by delegating to a function that performs an appropriate action for the given state. It's just two ways to skin the same cat.