Mastering Functional Programming

Type classes

So far, we have performed a bird's-eye overview of the Cats library and its structure. In this section, we'll have a look at some individual type classes from the Cats library that are frequently used in real-world projects. For every such type class, will take a look at the motivation as to why it exists. We will discuss their methods and behavior in detail. We will also take a look at examples of the usage of the type class. Finally, we will take a look at the implementation of the type class for various effect types, and take a look at how the class is implemented for popular types so that you have an idea of what an implementation of the type class might look like.