Go Tutorial

Go, also called Golang, is a programming language made at Google. It is simple to learn, very fast, and great for building web servers, APIs and command-line tools.

Popular tools such as Docker and Kubernetes are written in Go, and many companies use it for their backend systems.

Why Learn Go?

• Its syntax is small and clean, so beginners pick it up quickly
• Programs compile into one fast file that runs anywhere
• It has built-in support for doing many tasks at the same time
• Backend and cloud jobs ask for Go more and more

What You Will Learn

• Writing and running your first Go program
• Variables, constants and data types
• Operators, if and switch
• The for loop in all its forms
• Arrays, slices and maps
• Functions, multiple return values and errors
• Structs, methods and interfaces

A First Example

package main

import "fmt"

func main() {
	name := "Bilal"
	fmt.Println("Hello,", name)
}

Hello, Bilal

You can run every example on the free Go Playground at go.dev/play, or install Go on your computer from go.dev.

Exercises and Quiz

Every lesson has an exercise at the end, and the last lesson is a full quiz.

What to Learn After Go

Once you know Go, learn to build a web API with its standard net/http package. You may also enjoy Rust for systems programming, or Bash to automate your server work.