Book Image

Learning Go Programming

Book Image

Learning Go Programming

Overview of this book

The Go programming language has firmly established itself as a favorite for building complex and scalable system applications. Go offers a direct and practical approach to programming that let programmers write correct and predictable code using concurrency idioms and a full-featured standard library. This is a step-by-step, practical guide full of real world examples to help you get started with Go in no time at all. We start off by understanding the fundamentals of Go, followed by a detailed description of the Go data types, program structures and Maps. After this, you learn how to use Go concurrency idioms to avoid pitfalls and create programs that are exact in expected behavior. Next, you will be familiarized with the tools and libraries that are available in Go for writing and exercising tests, benchmarking, and code coverage. Finally, you will be able to utilize some of the most important features of GO such as, Network Programming and OS integration to build efficient applications. All the concepts are explained in a crisp and concise manner and by the end of this book; you would be able to create highly efficient programs that you can deploy over cloud.
Table of Contents (18 chapters)
Learning Go Programming
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface

Importing package


At this point, you should have a good understanding of what a package is, what it does, and how to create one. Now, let us see how to use a package to import and reuse its members. As you will find in several other languages, the keyword import is used to import source code elements from an external package. It allows the importing source to access exported elements found in the imported package (see the Package scope and visibility section earlier in the chapter). The general format for the import clause is as follows:

import [package name identifier] "<import path>"

Notice that the import path must be enclosed within double quotes. The import statement also supports an optional package identifier that can be used to explicitly name the imported package (discussed later). The import statement can also be written as an import block, as shown in the following format. This is useful where there are two or more import packages listed:

import (

[package name identifier]...