add: json encoding/decoding quiz and exercises

24-structs/exercises/05-decode/main.go

@@ -0,0 +1,57 @@
+// 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
+
+// ---------------------------------------------------------
+// EXERCISE: Decode
+//
+//  At the beginning of the file:
+//
+//  1. Load the initial data to the game store from json.
+//     (see the data constant below)
+//
+//  2. Load the decoded values into the usual `game` values (to the games slice as well).
+//
+//     So the rest of the program can work intact.
+//
+//
+// HINT
+//
+//  Move the jsonGame type to the top and reuse it both when
+//  loading the initial data, and in the "save" command.
+//
+//
+// EXPECTED OUTPUT
+//  Please run the solution to see the output.
+// ---------------------------------------------------------
+
+const data = `
+[
+        {
+                "id": 1,
+                "name": "god of war",
+                "genre": "action adventure",
+                "price": 50
+        },
+        {
+                "id": 2,
+                "name": "x-com 2",
+                "genre": "strategy",
+                "price": 40
+        },
+        {
+                "id": 3,
+                "name": "minecraft",
+                "genre": "sandbox",
+                "price": 20
+        }
+]`
+
+func main() {
+	// use your solution from the previous exercise
+}