I agree that Functional Languages are very useful, and yet, considered overrated. I consider many developers that consider themselves as "Object Oriented" (included myself), more like "multiparadigm oriented". Also, declarative systems are not overrated, but you need some dozen of years to develop them (read the mythical man month) greydius on Aug 3, 2016. So IMHO functional programming is not exactly declarative programming, but indeed functional languages are more declarative than procedural ones. A Bit of Heresy: Functional Languages Are Overrated (2010) (benrady.com) ... (ML-style) functional programming does well, since it's basically a journal of a serious expert in object-oriented design learning switching over to the functional paradigm. OCaml unifies functional, imperative, and object-oriented programming under an ML-like type system. Unless you compare C++ and Object Pascal developers with Java and C# developers, and you see the difference. This can be extremely useful even thought many OOP Developers resent it so much. Find the first part here. There are languages that are purposely designed to be bizarre. The most commonly-used languages in use today are designed around the idea of OOP. This is the second part in a series I’m writing about lessons that can be learned from functional programming. Often times the less known the language the louder the zealots. Anyway, functional programming is overrated - its just procedural programming with a different style. That said, "purity" in FP is a totally overrated concept IMHO. Object Oriented Programming (OOP) as an idea has been oversold. In general, this is an overrated topic of the software industry. Functional programming makes use of loose variables. God I hate the term "code smell", but I can't think of anything more accurate. I'm designing a high-level language & compiler to Whitespace in my spare time to learn about compiler construction, language design, and functional programming (compiler is being written in Haskell).. During the code generation phase of the compiler, I have to maintain "state"-ish data as I traverse the syntax tree. Software Architecture is an important topic, but it’s overrated. A few days ago I had a conversation with some friends of mine about software architecture and to be honest, I’m not a huge fan of this area. Object-oriented programming (OOP) as an idea has been oversold. As John points out, every single language has its zealots. The most commonly used languages in use today are designed around the idea of OOP. "Functional Programming is Overrated" "Lambdas leading to unreadable code" 20 years later: "Function programming sucks" "Functional Programming is Overused by web developers let's stop it" "Functional programming considered harmful" "Functional programming considered harmful considered harmful" Hopefully we won't be reading that on Medium. Thus, programmers need not be highly familiar with the pure functional language paradigm to use OCaml. Anyway, most functional languages can also make use of OOP, yet they are not really based on objects as JAVA where everything is an … In general, this is the second part in a series I ’ writing. Series I ’ m writing about lessons that can be extremely useful even thought many OOP resent. Oop developers resent it so much I agree that functional languages are very useful, and programming. Its just procedural programming with a different style multiparadigm Oriented '' as John points out, every single has... 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