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Go Programming - From Beginner to Professional

Go Programming - From Beginner to Professional - Second Edition

By : Samantha Coyle
4.5 (14)
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Go Programming - From Beginner to Professional

Go Programming - From Beginner to Professional

4.5 (14)
By: Samantha Coyle

Overview of this book

Go Programming – From Beginner to Professional is a comprehensive guide that takes your proficiency in the Go programming language from novice to expert. Starting with fundamental concepts, this book covers variables, command-line tools, and working with data before delving into advanced concepts, including error handling, interfaces, and generics, harnessing Go’s latest features through hands-on exercises. Along the way, you’ll learn to structure projects using Go modules, manage packages effectively, and master debugging techniques. As you progress, you’ll get to grips with practical application-centric aspects such as command-line programming, file manipulation, and working with SQL databases. Additionally, the book explores web server development, RESTful APIs, and utilizing the Go HTTP client to interact with web applications. Further enhancing your Go skills, you’ll learn concurrent programming, testing methodologies, Go tools, and how to deploy applications in the cloud. Throughout the book, you’ll uncover Go’s hidden gems and gain insights into time manipulation, best practices, and more. By the end of this book, you’ll have worked through practical exercises and activities that’ll equip you with the knowledge and skills needed to excel as a proficient Go developer, primed for success in real-world projects.
Table of Contents (30 chapters)
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1
Part 1: Scripts
6
Part 2: Components
11
Part 3: Modules
16
Part 4: Applications
20
Part 5: Building For The Web
23
Part 6: Professional

Simple custom types

You can create custom types using Go’s simple types as a starting point. The notation is type <name> <type>. If we were to create an ID type based on a string, this would look like type id string. The custom type acts the same as the type you based it on, including getting the same zero value and having the same abilities to compare with other values of the same type. A custom type is not compatible with its base type, but you can convert your custom type back into the type it’s based on to allow for interaction.

Exercise 4.16 – Creating a simple custom type

In this exercise, we’ll define a map and then delete an element from it using user input and a simple custom type. Then, we’ll print the now possibly smaller map to the console. Let’s get started:

  1. Create a new folder and add a file named main.go to it.
  2. In main.go, add the package and imports:
    package main
    import "fmt"
  3. Define...
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Go Programming - From Beginner to Professional
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