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Introduction to Golang
Learning a new language can be a daunting task but Go language looks easy to learn for both beginners and veterans. The minimalist nature of the language makes it a good candidate when starting your next project
You can install Go using the tutorial from their official websiteInstall Go
Printing to the console is the standard first program you have to write in any language :) and so we will learn how we can do that in Go
main.go
package main
import "fmt"
func main() {
fmt.Println("First Go program !!")
}2.Declare
main package at the start of the file to let Go know that all the methods in this file belongs to main packagePackage is a way to group functions, and it's made up of all the files in the same directory
3.Next we are importing the
fmt package which contains function to print to the console4.Create a function called
main which contains the logic to print to console. main function inside Go package is called by default when you run the packageThat's it, we have a very simple go code to start.
Open your terminal to the folder which contains your main.go file and run the below command
go run main.go
Output: First Go program !!Once you have the code defined, it is very easy to generate a binary of the program and share your beautiful "Print to the console" application to the world :)
go build main.goAfter running this command, you will have binary executable file created in the same folder with your package name
mainIf you are in linux environment, you can run the below command to see your console output.
./main
Output: First Go program !!Just 7 lines of Go code and we are able to build an app which can be act as Command Line Interface (CLI) tool
There are more exciting things to do with Go and we will cover more on further posts.
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