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  • Book Overview & Buying Mastering Go – Third Edition
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Mastering Go – Third Edition

Mastering Go – Third Edition - Third Edition

By : Mihalis Tsoukalos
4.6 (16)
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Mastering Go – Third Edition

Mastering Go – Third Edition

4.6 (16)
By: Mihalis Tsoukalos

Overview of this book

Mastering Go is the essential guide to putting Go to work on real production systems. This freshly updated third edition includes topics like creating RESTful servers and clients, understanding Go generics, and developing gRPC servers and clients. Mastering Go was written for programmers who want to explore the capabilities of Go in practice. As you work your way through the chapters, you’ll gain confidence and a deep understanding of advanced Go concepts, including concurrency and the operation of the Go Garbage Collector, using Go with Docker, writing powerful command-line utilities, working with JavaScript Object Notation (JSON) data, and interacting with databases. You’ll also improve your understanding of Go internals to optimize Go code and use data types and data structures in new and unexpected ways. This essential Go programming book will also take you through the nuances and idioms of Go with exercises and resources to fully embed your newly acquired knowledge. With the help of Mastering Go, you’ll become an expert Go programmer by building Go systems and implementing advanced Go techniques in your projects.
Table of Contents (17 chapters)
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14
Other Books You May Enjoy
15
Index

Updating the statistics application

What we are going to do in this section is sort different datasets based on their mean value. As a result, the application is going to be able to read multiple files, which are going to be given as command line arguments to the utility—we are going to learn more about file I/O in Chapter 7, Telling a UNIX System What to Do.

We are going to create a structure that holds the statistical properties of each datafile, use a slice to store all such structures, and sort them based on the mean value of each dataset. The last functionality is going to be implemented using the sort.Interface. Using a structure for keeping the important information organized is a common practice. Additionally, we are going to use the slices.Min() and slices.Max() functions for finding the minimum and the maximum value in a slice, respectively, which saves us from having to sort the slice.

Although such utilities look naïve at first, they can be the...

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Mastering Go – Third Edition
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