fix: match the code to the videos

interfaces/11-sort/main.go

@@ -20,9 +20,9 @@ func main() {
 		{title: "hobbit", price: 25},
 	}
 
-	sort.Sort(l)
+	// sort.Sort(l)
-	sort.Sort(sort.Reverse(l))
+	// sort.Sort(sort.Reverse(l))
-	sort.Sort(byReleaseDate(l))
+	// sort.Sort(byReleaseDate(l))
 	sort.Sort(sort.Reverse(byReleaseDate(l)))
 
 	fmt.Print(l)

interfaces/12-marshaler/json.go

@@ -1,27 +0,0 @@
-// 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 "encoding/json"
-
-func encode() ([]byte, error) {
-	l := list{
-		{Title: "moby dick", Price: 10, Released: toTimestamp(118281600)},
-		{Title: "odyssey", Price: 15, Released: toTimestamp("733622400")},
-		{Title: "hobbit", Price: 25},
-	}
-	return json.MarshalIndent(l, "", "\t")
-}
-
-func decode(data []byte) (l list, _ error) {
-	if err := json.Unmarshal(data, &l); err != nil {
-		return nil, err
-	}
-	return
-}

interfaces/12-marshaler/main.go

@@ -9,26 +9,49 @@
 package main
 
 import (
+	"encoding/json"
 	"fmt"
 	"log"
 )
 
+const data = `[
+ {
+  "title": "moby dick",
+  "price": 10,
+  "released": 118281600
+ },
+ {
+  "title": "odyssey",
+  "price": 15,
+  "released": 733622400
+ },
+ {
+  "title": "hobbit",
+  "price": 25,
+  "released": -62135596800
+ }
+]`
+
 func main() {
-	// First encode products as JSON:
+	/* encoding */
-	data, err := encode()
+	l := list{
+		{Title: "moby dick", Price: 10, Released: toTimestamp(118281600)},
+		{Title: "odyssey", Price: 15, Released: toTimestamp("733622400")},
+		{Title: "hobbit", Price: 25},
+	}
+
+	data, err := json.MarshalIndent(l, "", " ")
 	if err != nil {
 		log.Fatal(err)
 	}
 	fmt.Println(string(data))
 
-	// Then decode them back from JSON:
+	/* decoding */
-	l, err := decode(data)
+	// var l list
-	if err != nil {
+	// if err := json.Unmarshal([]byte(data), &l); err != nil {
-		log.Fatal(err)
+	// 	log.Fatal(err)
-	}
+	// }
-
+	// fmt.Print(l)
-	// Let the list value print itself:
-	fmt.Print(l)
 }
 
 /*