Learning Functional Programming in Go

Summary

In this chapter, we saw how to use bad design using inheritance in Java and contrasted that solution to using composition in Go.

The Gang of Four's (GoF) epic book, Design Patterns: Elements of Reusable Object-Oriented Software, discussed design patterns that addressed design flaws in the object oriented languages like Java. For example, in the Putting Reuse Mechanisms to Work section, the GoF book states, Favor object composition over class inheritance.

This design principle is not even applicable to Go. Go does not support inheritance. No extra thought or work is required for Go developers. Go promotes composition out-of-the-box.

"These compositional techniques are what give Go its flavor, which is profoundly different from the ...