restructure: arrays and slices

16-slices/exercises/07-append/main.go

@@ -0,0 +1,25 @@
+package main
+
+// ---------------------------------------------------------
+// EXERCISE: Append
+//
+//  Please follow the instructions within the code below.
+//
+// EXPECTED OUTPUT
+//  They are equal.
+//
+// HINTS
+//  bytes.Equal function allows you to compare two byte
+//  slices easily. Check its documentation: go doc bytes.Equal
+// ---------------------------------------------------------
+
+func main() {
+	// 1. uncomment the code below
+	// png, header := []byte{'P', 'N', 'G'}, []byte{}
+
+	// 2. append elements to header to make it equal with the png slice
+
+	// 3. compare the slices using the bytes.Equal function
+
+	// 4. print whether they're equal or not
+}

16-slices/exercises/07-append/solution/main.go

@@ -0,0 +1,23 @@
+// 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 (
+	"bytes"
+	"fmt"
+)
+
+func main() {
+	png, header := []byte{'P', 'N', 'G'}, []byte{}
+
+	header = append(header, png...)
+
+	if bytes.Equal(png, header) {
+		fmt.Println("They are equal")
+	}
+}