Learn Go (Golang) Programming

Master Go from basics to advanced topics with concise lessons and practical examples. Includes concurrency with goroutines and channels, plus idiomatic patterns.

Start Learning Try Go Online

Reference guide: Programing — Go Programming [0]

Tutorial Contents
Getting Started
Basics
Control Flow
Functions & Collections
Types & Interfaces
Concurrency
Errors & Modules

Variables in Go

package main
import "fmt"

func main() {
    var age int = 30
    price := 19.99
    const Pi = 3.14159
    fmt.Println(age, price, Pi)
}
  • Explicit declaration: var age int declares a named variable with a type.
  • Short declaration: := infers the type from the right-hand side. Great for local variables.
  • Constants: const values do not change. They are evaluated at compile time when possible.

Golang Tutorial FAQs

How do I run Go online?
Use the Go Online Compiler to write and execute Go directly in your browser—no setup needed. Click "Try Go Online" above to get started.
How do I install Go on Windows?
Download the Go installer, run it, and verify with go version. Optionally set GOPATH for your workspace. [0]
How do I install Go on macOS?
Install Go using the official PKG or Homebrew. In your shell profile, add export GOPATH=$HOME/go and ensure $GOPATH/bin is in PATH. Verify with go version.
What is Go used for?
Go powers scalable backends, CLI tools, microservices, networking systems, and cloud-native applications. Its concurrency and simplicity make it ideal for modern infrastructure.
What are goroutines and channels?
Goroutines are lightweight concurrent functions managed by Go’s runtime. Channels allow safe communication and synchronization between goroutines.

Learn Go the Practical Way

Whether you’re new to programming or expanding your backend skills, this Go tutorial focuses on hands-on learning. Each topic pairs clear explanations with short, working examples you can run online. Move from fundamentals—variables, types, and control flow—to core concepts like slices, maps, and methods. Then explore concurrency with goroutines and channels, plus interfaces and error handling.

Why this guide? It’s fast to read, easy to try, and friendly on mobile. Bookmark it and return whenever you need a refresher or a quick example.