Go Programming Language Examples Every Developer Should Know

Go, also known as Golang, is a programming language developed by Google in 2007. It has gained popularity in recent years due to its simplicity, efficiency, and concurrency support. Many developers are now turning to Go for their projects, making it a valuable language to learn in the tech industry.

Thank you for reading this post, don't forget to subscribe!

To help developers get started with Go, here are some examples that every developer should know:

1. Hello World:

The classic “Hello World” program is a must-know for any developer learning a new language. In Go, the code for this simple program looks like this:

“`go

package main

import “fmt”

func main() {

fmt.Println(“Hello, World!”)

}

“`

2. Variables:

In Go, variables are declared using the `var` keyword. Here is an example of declaring and initializing variables in Go:

“`go

package main

import “fmt”

func main() {

var x int = 5

var y float64 = 4.5

var z string = “Hello, Go!”

fmt.Println(x, y, z)

}

“`

3. Functions:

Functions in Go are declared using the `func` keyword. Here is an example of a simple function that takes two integers as parameters and returns their sum:

“`go

package main

import “fmt”

func add(x int, y int) int {

return x + y

}

func main() {

sum := add(3, 4)

fmt.Println(“Sum:”, sum)

}

“`

4. Arrays and Slices:

Go supports arrays and slices, which are similar to arrays but can be resized. Here is an example of creating an array and a slice in Go:

“`go

package main

import “fmt”

func main() {

// Array

var arr [3]int

arr[0] = 1

arr[1] = 2

arr[2] = 3

fmt.Println(“Array:”, arr)

// Slice

slice := []int{1, 2, 3, 4, 5}

fmt.Println(“Slice:”, slice)

}

“`

5. Concurrency:

One of the key features of Go is its support for concurrency, which allows developers to run multiple tasks concurrently. Here is an example of a simple concurrent program in Go:

“`go

package main

import (

“fmt”

“time”

)

func printNumbers() {

for i := 1; i