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

Go and the JSON format

JSON is a very popular text-based format designed to be an easy and light way to pass information between JavaScript systems. However, JSON is also being used for creating configuration files for applications and storing data in a structured format.

The encoding/json package offers the Encode() and Decode() functions, which allow the conversion of a Go object into a JSON document and vice versa. Additionally, the encoding/json package offers the Marshal() and Unmarshal() functions, which work similarly to Encode() and Decode() and are based on the Encode() and Decode() methods. The main difference between the Marshal() and Unmarshal() pair and the Encode() and Decode() pair is that the former pair works on single objects, whereas the latter pair of functions can work on multiple objects as well as streams of bytes.