Polymorphism and Multimethods
Explore how to implement polymorphism in Clojure using multimethods. Understand defmulti and defmethod to define flexible, type-based function behaviors that improve code abstraction and extensibility.
We'll cover the following...
Polymorphism
Polymorphism is one of the core concepts of object-oriented programming and describes situations in which something occurs in several different forms, so we can have an interface with different implementations for each scenario.
In the example, the animals are speaking. They’re all from the same group, which is animals, and they all have the same characteristic, which is speaking. However, each animal speaks differently.
Coming back to Clojure, we see that, as in any other programming language, we might want to have abstractions. The main way to achieve that in Clojure is by associating an operation name with more than one algorithm, which is the same as in object-oriented ...