Book Image

Mastering Go - Second Edition

By : Mihalis Tsoukalos
Book Image

Mastering Go - Second Edition

By: Mihalis Tsoukalos

Overview of this book

Often referred to (incorrectly) as Golang, Go is the high-performance systems language of the future. Mastering Go, Second Edition helps you become a productive expert Go programmer, building and improving on the groundbreaking first edition. Mastering Go, Second Edition shows how to put Go to work on real production systems. For programmers who already know the Go language basics, this book provides examples, patterns, and clear explanations to help you deeply understand Go’s capabilities and apply them in your programming work. The book covers the nuances of Go, with in-depth guides on types and structures, packages, concurrency, network programming, compiler design, optimization, and more. Each chapter ends with exercises and resources to fully embed your new knowledge. This second edition includes a completely new chapter on machine learning in Go, guiding you from the foundation statistics techniques through simple regression and clustering to classification, neural networks, and anomaly detection. Other chapters are expanded to cover using Go with Docker and Kubernetes, Git, WebAssembly, JSON, and more. If you take the Go programming language seriously, the second edition of this book is an essential guide on expert techniques.
Table of Contents (20 chapters)
Title Page

Reflection and Interfaces for All Seasons

The previous chapter talked about developing packages, modules, and functions in Go, as well as working with text and HTML templates with the help of the text/template and html/template packages. The chapter also explained the use of the syscall package.

This chapter is going to teach you three very interesting, handy, and somewhat advanced Go concepts: reflection, interfaces, and type methods. Although Go interfaces are used all the time, reflection is not, mainly because it is not usually necessary for your programs to use it. Furthermore, you will learn about type assertions, the Delve debugger, and object-oriented programming in Go. Lastly, this chapter will present a short introduction to git and GitHub.

Therefore, in this chapter, you will learn about:

  • Type methods
  • Go interfaces
  • Type assertions
  • Developing and using your own interfaces...