Go In Action - Code Examples

This directory contains all runnable code examples from the book "Go In Action (Second Edition)".

Chapter Organization

• chapter01 - Introducing Go: Basic goroutines, channels, interfaces, generics
• chapter02 - Diving Into Go: Word count program, scope, and fundamentals
• chapter03 - Primitive Types: Integers, floats, strings, runes, pointers, structs
• chapter04 - Collection Types: Arrays, slices, and maps
• chapter05 - Working With Types: Named types, methods, interfaces, composition
• chapter06 - Generics: Type parameters and generic data structures
• chapter07 - Errors: Error handling, custom errors, panic/recover
• chapter08 - Testing: Unit tests, table-driven tests, benchmarks
• chapter09 - Concurrency: Goroutines, channels, WaitGroups, mutexes
• chapter10 - Standard Library: JSON, XML, flags, file I/O
• chapter11 - Larger Projects: Modules, packages, workspaces

Running Examples

Each chapter directory contains:

• Runnable .go files
• A README.md with specific instructions
• Any supporting files needed

Navigate to any chapter and run:

cd chapter01
go run goroutine_basic.go

Requirements

• Go 1.18 or later (for generics support)
• Some examples may require additional packages (noted in chapter READMEs)

Testing

To run all tests in a chapter:

cd chapter08
go test -v

Building

To build any program:

go build -o program_name file.go
./program_name

Enjoy learning Go! 🎉