I supplied a parameter called array

I use .map method to map the book to the title.

11_getTheTitles/getTheTitles.js

@@ -1,6 +1,17 @@
-const getTheTitles = function() {
-
+const getTheTitles = function(array) {
+    return array.map(book => book.title)
   };
     
+  const books = [
+    {
+      title: 'Book',
+      author: 'Name'
+    },
+    {
+      title: 'Book2',
+      author: 'Name2'
+    }
+  ]
+
 // Do not edit below this line
 module.exports = getTheTitles;