Browse Library
Sign In Start Free Trial
Close icon Search icon
Account
Browse Library Advanced Search Sign In Start Free Trial

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying Learning Go Programming
  • Table Of Contents Toc
  • Feedback & Rating feedback
Learning Go Programming

Learning Go Programming

4.8 (5)
Buy this Book
close
close
Learning Go Programming

Learning Go Programming

4.8 (5)
Buy this Book

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 (13 chapters)
close
close
close
Preface
Icon
Preface
Icon
What this book covers
Icon
What you need for this book
Icon
Who this book is for
Icon
Conventions
Icon
Reader feedback
Icon
Customer support
Lock Free Chapter
1
1. A First Step in Go
Icon
1. A First Step in Go
Icon
The Go programming language
Icon
Playing with Go
Icon
Your first Go program
Icon
Go in a nutshell
Icon
Summary
2
2. Go Language Essentials
Icon
2. Go Language Essentials
Icon
The Go source file
Icon
Go identifiers
Icon
Go variables
Icon
Go constants
Icon
Go operators
Icon
Summary
3
3. Go Control Flow
Icon
3. Go Control Flow
Icon
The if statement
Icon
Switch statements
Icon
The for statements
Icon
The break, continue, and goto statements
Icon
Summary
4
4. Data Types
Icon
4. Data Types
Icon
Go types
Icon
Numeric types
Icon
Boolean type
Icon
Rune and string types
Icon
Pointers
Icon
Type declaration
Icon
Type conversion
Icon
Summary
5
5. Functions in Go
Icon
5. Functions in Go
Icon
Go functions
Icon
Passing parameter values
Icon
Higher-order functions
Icon
Error signaling and handling
Icon
Deferring function calls
Icon
Function panic and recovery
Icon
Summary
6
6. Go Packages and Programs
Icon
6. Go Packages and Programs
Icon
The Go package
Icon
Creating packages
Icon
Building packages
Icon
Package visibility
Icon
Importing package
Icon
Package initialization
Icon
Creating programs
Icon
Remote packages
Icon
Summary
7
7. Composite Types
Icon
7. Composite Types
Icon
The array type
Icon
The slice type
Icon
The map type
Icon
The struct type
Icon
Summary
8
8. Methods, Interfaces, and Objects
Icon
8. Methods, Interfaces, and Objects
Icon
Go methods
Icon
Objects in Go
Icon
The interface type
Icon
Type assertion
Icon
Summary
9
9. Concurrency
Icon
9. Concurrency
Icon
Goroutines
Icon
Channels
Icon
Writing concurrent programs
Icon
The sync package
Icon
Detecting race conditions
Icon
Parallelism in Go
Icon
Summary
10
10. Data IO in Go
chevron up
Icon
10. Data IO in Go
Icon
IO with readers and writers
Icon
The io.Reader interface
Icon
The io.Writer interface
Icon
Working with the io package
Icon
Working with files
Icon
Formatted IO with fmt
Icon
Buffered IO
Icon
In-memory IO
Icon
Encoding and decoding data
Icon
Summary
11
11. Writing Networked Services
Icon
11. Writing Networked Services
Icon
The net package
Icon
A TCP API server
Icon
The HTTP package
Icon
A JSON API server
Icon
Summary
12
12. Code Testing
Icon
12. Code Testing
Icon
The Go test tool
Icon
Writing Go tests
Icon
HTTP testing
Icon
Test coverage
Icon
Code benchmark
Icon
Summary

Formatted IO with fmt

One of the most widely used packages for IO is fmt (https://golang.org/pkg/fmt). It comes with an amalgam of functions designed for formatted input and output. The most common usage of the fmt package is for writing to standard output and reading from standard input. This section also highlights other functions that make fmt a great tool for IO.

Printing to io.Writer interfaces

The fmt package offers several functions designed to write text data to arbitrary implementations of io.Writer. The fmt.Fprint and fmt.Fprintln functions write text with the default format while fmt.Fprintf supports format specifiers. The following code snippet writes a columnar formatted list of metalloid data to a specified text file using the fmt.Fprintf function:

type metalloid struct { 
   name   string 
   number int32 
   weight float64 
} 
 
func main() { 
   var metalloids = []metalloid{ 
         {"Boron", 5, 10.81}, 
         ... 
   ...
Visually different images
CONTINUE READING
83
Tech Concepts
36
Programming languages
73
Tech Tools
Icon Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.
Icon Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.
Icon 50+ new titles added per month and exclusive early access to books as they are being written.
Learning Go Programming
End of Section 10
Next Section
notes
bookmark Notes and Bookmarks search Search in title playlist Add to playlist download Download options
font-size Font size

Change the font size

margin-width Margin width

Change margin width

day-mode Day/Sepia/Night Modes

Change background colour

Close icon Search
Country selected
Close icon Your notes and bookmarks

Confirmation

Modal Close icon
claim successful
Order Page Read Now

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY

Submit Your Feedback

Modal Close icon
Modal Close icon
Modal Close icon