Table of Contents

• Chapter 1: Introduction to Go 1
  • What is Go? History and Evolution1
  • Why Use Go? Features and Advantages3
  • Setting Up Your Go Environment6
  • Writing Your First Go Program9
  • Understanding the Go Toolchain (go run, go build, go fmt, go get)11
Chapter 2: Go Basics: Syntax and Data Types 14
• Variables and Constants14
• Basic Data Types (int, float, bool, string)17
• Type Inference and Zero Values20
• Operators and Expressions22
• Comments and Formatting25
Chapter 3: Control Structures 27
• Conditional Statements (if, else, switch)27
• Loops (for)30
• Using defer for delayed execution33
• Error handling basics (panic and recover overview)36
Chapter 4: Functions 38
• Defining and Calling Functions38
• Function Parameters and Return Values40
• Multiple Return Values42
• Named Return Values44
• Variadic Functions45
• Anonymous Functions and Closures47
Chapter 5: Arrays, Slices, and Maps 49
• Arrays: Declaration and Usage49
• Slices: Creating, Reslicing, and Capacity51
• Maps: Creating and Using Key-Value Pairs55
• Common Operations on Slices and Maps57
Chapter 6: Structs and Methods 60
• Defining Structs60
• Accessing Struct Fields62
• Methods on Structs64
• Pointer vs Value Receivers66
• Embedding and Composition Basics69
Chapter 7: Interfaces and Polymorphism 72
• Understanding Interfaces72
• Implementing Interfaces75
• Empty Interface and Type Assertions79
• Type Switches82
Chapter 8: Concurrency in Go 84
• Introduction to Goroutines84
• Channels: Basics and Usage86
• Buffered vs Unbuffered Channels89
• Select Statement92
• Synchronization (WaitGroups, Mutexes)94
Chapter 9: Packages and Modules 97
• Package Basics and Naming Conventions97
• Importing Packages100
• Creating Your Own Packages101
• Using Go Modules (go mod)103
Chapter 10: Error Handling 105
• Error Interface105
• Creating Custom Errors107
• Error Wrapping and Unwrapping109
• Best Practices for Error Handling112
Chapter 11: File I/O and Working with Data 117
• Reading and Writing Files117
• Working with JSON and XML120
• Using encoding/json Package123
• Basic Networking with net/http128
Chapter 12: Testing in Go 137
• Writing Unit Tests (testing package)137
• Running Tests and Test Coverage138
• Benchmarking Functions141
• Table-Driven Tests143
Chapter 13: Tools and Best Practices 145
• Using go fmt, go vet, and golint145
• Debugging Go Programs147
• Profiling and Performance Tuning150
• Code Organization and Style Tips152
Chapter 14: Building and Deploying Go Programs 156
• Cross-Compilation156
• Creating Executables158
• Basic Deployment Strategies160
• Introduction to Dockerizing Go Applications163
Chapter 15: Appendix 166
• Frequently Asked Questions (FAQ)166
• Glossary of Go Terms170