Hello World

Go, commonly referred to as Golang, is an open-source programming language developed by a team at Google. Go is designed to be efficient, concise, and easy to use, with a focus on simplicity and productivity.

Let's start with the classic "Hello World" example.

package main

import "fmt"

func main() {
    fmt.Println("Hello World")
}

You can run it directlly on the Literank online playground, or save this code in a file with a .go extension, for example, hello.go. You can then run it using the following command in your terminal:

go run hello.go

Imports

import "fmt"

In Go, the import statement is used to include external packages in your code. The fmt package is one of the standard libraries in Go, and it stands for "format." It provides functions for formatting input and output, especially for printing to the console.

Comments

Single-line comments start with // and continue until the end of the line. Anything written after // on a line is treated as a comment.

Multi-line comments are enclosed between /* and */.

// This is a single-line comment

/*
    This is a multi-line comment
    It can span multiple lines
    Useful for longer explanations or comments
*/

Code Challenge

Try to modify the code in the editor to make it print Hello, I'm a Gopher now..
Note: The Go programming language's mascot is a gopher.