Functors, Applicatives, And Monads In Pictures - adit.io
Written April 17, 2013 updated: May 20, 2013 Here's a simple value: And we know how to apply a function to this value: Simple enough. Lets extend this by saying that any value can be in a context. For now you can think of a context as a box that you can put a value in: Now when you apply a function to this value, you'll get different results depending on the context. This is the idea that Functors
Functional Programming + Domain-Driven Design
Functional programming promotes immutable classes and referential transparency. Domain-driven design is composed of Value Object (immutable) and Entities (mutable). Should we create immutable Entities instead of mutable ones? Let's assume, project uses Scala as main language, how could we write Entities as case classes (immutable so) without risking stale status if we're dealing with concurrency?
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zx | Once you go functional, you can never go back
