goessentials: A Go repository from raksit31667

TIL

While learn Go, focus on engineering practice rather than syntax
function main in package main
public method starts with uppercase, private mthod starts with lowercase
Go has zero value
No matter how many files in the package, Go considers each file as a package
Test file name convention: xxx_test.go
Go doesn't allow to declare var without using it, use _ instead
go mod tidy to install dependencies, it generate go.sum (yarn.lock)
Go doesn't accept slice (array) with different specific length on function argument
Go requires comma on struct declaration so that we won't have to remove comma on last element

var p Person = Person{
			Age: 30,
			Name: "John",
		}

To compile and run Go program:

$ go run main.go

To initialize new module in current directory:

$ go mod init github.com/raksit31667/goessentials

To add missing and remove unused modules:

$ go mod tidy

To see environment variables:

$ go env

To compile Go package and dependencies:

$ go build -o ./goessentials

To run test packages:

$ go test ./...