An Introduction to Programming in Go

✍ Scribed by Caleb Doxsey

• Publisher: CreateSpace Independent Publishing Platform
• Year: 2012
• Tongue: English
• Leaves: 165
• Category: Library

✦ Synopsis

This book is a short, concise introduction to computer programming using the language Go. Designed by Google, Go is a general purpose programming language with modern features, clean syntax and a robust well-documented common library, making it an ideal language to learn as your first programming language.
Contents
1 Getting Started 1
1.1 Files and Folders 2
1.2 The Terminal 5
1.3 Text Editors 9
1.4 Go Tools 13
2 Your First Program 15
2.1 How to Read a Go Program 17
3 Types 23
3.1 Numbers 24
3.2 Strings 29
3.3 Booleans 31
4 Variables 35
4.1 How to Name a Variable 39
4.2 Scope 40
4.3 Constants 43
4.4 Defining Multiple Variables 44
4.5 An Example Program 45
5 Control Structures 47
5.1 For 48
5.2 If 51
5.3 Switch 55
6 Arrays, Slices and Maps 58
6.1 Arrays 58
6.2 Slices 64
6.3 Maps 67
7 Functions 76
7.1 Your Second Function 77
7.2 Returning Multiple Values 82
7.3 Variadic Functions 82
7.4 Closure 84
7.5 Recursion 86
7.6 Defer, Panic & Recover 88
8 Pointers 92
8.1 The * and & operators 93
8.2 new 94
9 Structs and Interfaces 97
9.1 Structs 98
9.2 Methods 101
9.3 Interfaces 104
10 Concurrency 108
10.1 Goroutines 108
10.2 Channels 111
11 Packages 120
11.1 Creating Packages 121
11.2 Documentation 124
12 Testing 127
13 The Core Packages 132
13.1 Strings 132
13.2 Input / Output 134
13.3 Files & Folders 135
13.4 Errors 140
13.5 Containers & Sort 141
13.6 Hashes & Cryptography 144
13.7 Servers 147
13.8 Parsing Command Line Arguments 155
13.9 Synchronization Primitives 156
14 Next Steps 159
14.1 Study the Masters 159
14.2 Make Something 160
14.3 Team Up 161