Functional Programming in Go

9

Functional Design Patterns

In this chapter, we will move to a higher level of abstraction. Rather than talking about individual functions and operations, let’s take a look at some design patterns. While we will not extensively explain each design pattern, we will take a look at how the object-oriented pattern translates to the functional world.

In this chapter, we’re going to cover the following main topics:

• Classical design patterns in a functional paradigm:
  • The strategy pattern
  • The decorator pattern
  • The Hollywood principle
• Functional design patterns

Technical requirements

In this chapter, any version at or above Go 1.18 will work for all Go-related code. Some snippets are written in Java; those will work with any version of Java above 1.5. ...