Contents
- Let’s Review
- The IO Functor and
Text - Product types
- The tuple type
- Tuple maps
- An Exercise
- A short digression
- Pair vs tuple
- Another exercise
- Three-tuple
- Coming up
In the last lesson, we looked at the motivation for the Functor typeclass and some common instances, with Maybe, Either, and lists. Maybe and Either take a different number of type arguments, but they are both structured as sum types. We begin this lesson with some more examples and then we will look at some common product types and their Functor instances.