learngo/interfaces/03-nonstructs/main.go

// For more tutorials: https://blog.learngoprogramming.com
//
// Copyright © 2018 Inanc Gumus
// Learn Go Programming Course
// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
//

package main

func main() {
	var (
		// mobydick  = book{title: "moby dick", price: 10}
		minecraft = game{title: "minecraft", price: 20}
		tetris    = game{title: "tetris", price: 5}
	)

	var items []game
	items = append(items, minecraft, tetris)

	// you can attach methods to a compatible type on the fly:
	my := list([]game{minecraft, tetris})

	// you can call methods even on a nil value
	// my = nil

	my.print() // or: list.print(items)
}