add: more exercises to funcs

25-functions/exercises/refactor-to-funcs-3/solution/main.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 (
+	"bufio"
+	"fmt"
+	"os"
+)
+
+func main() {
+	games := load()
+	byID := indexByID(games)
+
+	fmt.Printf("Inanc's game store has %d games.\n", len(games))
+
+	in := bufio.NewScanner(os.Stdin)
+	for {
+		fmt.Printf(`
+  > list   : lists all the games
+  > id N   : queries a game by id
+  > save   : exports the data to json and quits  
+  > quit   : quits
+
+`)
+
+		if !in.Scan() || !runCmd(in.Text(), games, byID) {
+			break
+		}
+	}
+}