interfaces: refactor

interfaces/01-methods/game.go

@@ -0,0 +1,36 @@
+// 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
+
+import "fmt"
+
+type game struct {
+	title string
+	price float64
+}
+
+func (g game) print() {
+	fmt.Printf("%-15s: $%.2f\n", g.title, g.price)
+}
+
+// PREVIOUS CODE:
+
+// ----------------------------------------------------------------------------
+// you can use same method name among different types.
+// you don't need to type `printGame`, it's just: `print`.
+//
+// func (g game) printGame() {
+// 	fmt.Printf("%-15s: $%.2f\n", g.title, g.price)
+// }
+
+// ----------------------------------------------------------------------------
+// you cannot use the same function name within the same package.
+//
+// func printGame(g game) {
+// 	fmt.Printf("%-15s: $%.2f\n", g.title, g.price)
+// }