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


This chapter addressed many important topics related to goroutines and channels. Mainly, however, it clarified the power of the select statement. Due to the capabilities of the select statement, channels are the preferred Go way for interconnecting the components of a concurrent Go program that utilizes multiple goroutines. Additionally, the chapter demonstrated the use of the context standard Go package, which, when needed, is irreplaceable.

There are many rules in concurrent programming; however, the most important rule is that you should avoid sharing things unless you have a pretty important reason to do so! Shared data is the root of all nasty bugs in concurrent programming.

What you must remember from this chapter is that, although shared memory used to be the only way of exchanging data over the threads of the same process, Go offers better ways for goroutines to...