/GoLang

a repo for my Go Language learning

Primary LanguageGo

GoLang

a repo for my Go Language learning

Documentation

https://go.dev/doc/tutorial/getting-started

Install Go

sudo apt install golang-go

start a project

  1. mkdir folder; cd folder
  2. go mod init folder/file this gives a pseudo link for local Go .mod to reference. Name it the same as the folder your code will be in with main or hello.go
  3. touch hello.go
  4. go run .
  5. for an executable file go build hello.go which compiles and makes hello file => ./hello

import external package

check out packages https://pkg.go.dev/ but all of the Go packages are from GitHub.

to import a package:

  1. go get -u github.com/ , example: go get -u github.com/ttacon/chalk
  2. inside the main file import the github link inside the import( ), example: import( "fmt"; "github.com/ttacon/chalk" )
  3. run go mod tidy for package maintenance
  4. run program go run .

errors

Go lang does not like when you have packages imported or variables etc declared and not used, comment the things not used to avoid any errors or warnings.

Starter template

package main

import "fmt"

var pl = fmt.Println   // declare a shortcut for fmt.Println

func main() {
  pl("hello Go")
}