learngo/interfaces/03-nonstructs/list.go

// Copyright © 2018 Inanc Gumus
// Learn Go Programming Course
// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
//
// For more tutorials  : https://learngoprogramming.com
// In-person training  : https://www.linkedin.com/in/inancgumus/
// Follow me on twitter: https://twitter.com/inancgumus

package main

import "fmt"

// + you can attach methods to non-struct types.
// + rule: you need to declare a new type in the same package.
type list []*game

func (l list) print() {
	// `list` acts like a `[]game`
	if len(l) == 0 {
		fmt.Println("Sorry. We're waiting for delivery 🚚.")
		return
	}

	for _, it := range l {
		it.print()
	}
}