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

Object-oriented programming in Go

You should know by now that Go does not use inheritance; instead, it supports composition. Go interfaces provide a kind of polymorphism. So, although Go is not an object-oriented programming language, it has some features that allow us to mimic object-oriented programming.

If you really want to develop applications using the object-oriented methodology, then choosing Go might not be your best option. As I am not really into Java, I would suggest looking at C++ or Python instead.

First, let me explain to you the two techniques that will be used in the Go program of this section. The first technique uses methods in order to associate a function with a type, which means that in some ways, the function and the type construct an object. In the second technique, you embed a type into a new structure type in order to create a kind of hierarchy.