Go - Go Programming Language

Syntax Overview

1var x int = 10 or x := 10

1func functionName(parameters) returnType { }

1Not supported (uses structs and methods)

1// Single line or /* Multi-line */

Code Examples and Tutorials

Learning Go programming requires hands-on practice with real code examples. Below, you'll find comprehensive code samples that demonstrate fundamental concepts, common programming patterns, and practical implementations. Each example is carefully explained to help you understand not just what the code does, but why it's written that way and how you can adapt it for your own projects.

1package main
2
3import "fmt"
4
5func main() {
6    fmt.Println("Hello, World!")
7}

1var age int = 25
2price := 19.99
3name := "John"
4isActive := true

1func add(a int, b int) int {
2    return a + b
3}
4
5func main() {
6    result := add(5, 3)
7    fmt.Println("Sum:", result)
8}

1type Person struct {
2    Name string
3    Age  int
4}
5
6func (p Person) Display() {
7    fmt.Printf("%s is %d years old\n", p.Name, p.Age)
8}
9
10func main() {
11    person := Person{Name: "John", Age: 25}
12    person.Display()
13}

1// For loop
2for i := 0; i < 10; i++ {
3    fmt.Println(i)
4}
5
6// Range loop
7numbers := []int{1, 2, 3, 4, 5}
8for _, num := range numbers {
9    fmt.Println(num)
10}

1age := 18
2
3if age >= 18 {
4    fmt.Println("Adult")
5} else {
6    fmt.Println("Minor")
7}

Essential Go Commands and Features

Understanding the essential commands and functions in Go is crucial for effective programming. This section provides detailed explanations of the most important commands, functions, and language features you'll use regularly when developing applications with Go. Each command is explained with its purpose, syntax, and practical usage examples to help you master the language quickly.

1fmt.Println("Hello")

1package main

1func main() { }

1x := 10

1go run main.go

1go functionName()

Learning Go Programming

Common Use Cases

Go is widely used across various industries and application domains. Understanding where and how Go is typically used helps you make informed decisions about when to choose this language for your projects. Below are the most common use cases where Go excels, along with examples of real-world applications built with this powerful programming language.

Best Practices and Coding Standards

Following best practices is essential for writing professional, maintainable Go code. These guidelines have been developed by the programming community over years of experience and help ensure your code is readable, efficient, and follows industry standards. Adopting these practices early in your Go learning journey will make you a better developer and help you write code that others can easily understand and maintain.