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


Strictly speaking, a tuple is a finite ordered list with multiple parts. The most important thing about tuples is that Go has no support for the tuple type, which means that Go does not officially care about tuples, despite the fact that it has support for certain uses of tuples.

One interesting thing here is that we have been using Go tuples in this book since Chapter 1, Go and the Operating System, in statements such as the next one, where a function returns two values that you get in a single statement:

min, _ := strconv.ParseFloat(arguments[1], 64) 

The name of the Go program that will illustrate Go tuples is tuples.go and it will be presented in three code segments. Please note that the presented code uses a function that returns three values as a tuple. You will learn more about functions in Chapter 6, What You Might Not Know About Go Packages and Go Functions.