Book Image

Learning Go Programming

By : Vladimir Vivien, Parth Desai
Book Image

Learning Go Programming

By: Vladimir Vivien, Parth Desai

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
About the Author
About the Reviewers

Go operators

Staying true to its simplistic nature, operators in Go do exactly what you would expect, mainly, they allow operands to be combined into expressions. There are no hidden surprise behaviors with Go operators as there is no support for operator-overloading as found in C++ or Scala. This was a deliberate decision from the designers to keep the semantics of the language simple and predictable.

This section explores the most common operators that you will encounter as you start with Go. Other operators are covered throughout other chapters of the book.

Arithmetic operators

The following table summarizes the arithmetic operators supported in Go.



Compatible types

*, /, -

Multiplication, division, and subtraction

Integers, floating points, and complex numbers






Integers, floating points, complex numbers, and strings (concatenation)

Note that the addition operator, +, can be applied to strings such as in the expression var i =...