Go Programming Language¶

Complete guide to Go programming with organized topics and practical examples.

Documentation Structure¶

This guide is organized into separate files for easier navigation:

Getting Started¶

00 - Project Setup - How to initialize projects, install packages, create local/remote packages, run/build applications, and Docker builds (including multi-stage)

Core Concepts¶

01 - Basics - Basic types, variables, operators, conditionals, and loops
02 - Arrays and Slices - Working with arrays and slices
03 - Functions - Functions, closures, defer, and variadic functions
04 - Structs - Struct types, methods, and composition
05 - Maps - Hash maps and key-value pairs
06 - Pointers - Memory addresses and references
07 - Methods and Interfaces - Object-oriented programming in Go
08 - Errors - Error handling patterns and best practices
09 - Testing - Unit tests, benchmarks, and examples
10 - Concurrency - Goroutines, channels, and concurrency patterns
11 - Standard Library - Common packages (fmt, strings, time, io, http, etc.)

Quick Start¶

Hello World¶

package main

import "fmt"

func main() {
    fmt.Println("Hello, Go!")
}

Run and Build¶

# Run directly
go run main.go

# Build executable
go build -o myapp

# Run tests
go test ./...

Go CLI Commands Reference¶

# Compile & Run
go run [file.go]

# Build executable
go build [file.go]
go build -o [output-name]

# Test packages
go test ./...
go test -v
go test -cover

# Install packages/modules
go get [module]
go install [package]

# Manage dependencies
go mod init [module-name]
go mod tidy
go mod download

# Format code
go fmt ./...

# List packages
go list ./...

# View documentation
go doc [package]

# Environment info
go env
go version

Project Structure¶

my-project/
├── go.mod              # Module definition
├── go.sum              # Dependency checksums
├── main.go             # Entry point
├── cmd/                # Command-line apps
├── internal/           # Private code
├── pkg/                # Public libraries
└── vendor/             # Vendored dependencies (optional)

Resources¶

Note: This file serves as an index. Click on the links above to explore each topic in detail.