Go/Quick Start

Create a module

Create module and source file.

go mod init sandbox/hello
touch hello.go

Add source code.

package main

import "fmt"

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

Run.

go run .

Work with 2 modules

mkdir main greetings sucks
cd greetings
go mod init sandbox/greetings
cd ../sucks
go mod init sandbox/sucks
cd ../main
go mod init
go mod edit -replace sandbox/greetings=../greetings
go mod edit -replace sandbox/sucks=../sucks
go mod tidy

naming convention table

Element	Visibility	Casing Rule
File		snake_case
Package		Lowercase
Module		kebab-case
Struct / Type	Exported (Public)	PascalCase
Struct Field	Exported (Public)	PascalCase
Struct Field	Unexported (Private)	camelCase
Function	Exported (Public)	PascalCase
Function	Unexported (Private)	camelCase
Variable	Exported (Public)	PascalCase
Variable	Unexported (Private)	camelCase
Constant	Exported (Public)	ALL_CAPS
Interface	Exported (Public)	PascalCase
Method	Exported/Unexported	Follow Function Rules