diff --git a/starter-code/index.html b/starter-code/index.html
index 72d9190..7f4a6cb 100644
--- a/starter-code/index.html
+++ b/starter-code/index.html
@@ -4,7 +4,8 @@
     <title>Advanced Collection Methods</title>
     <script src="./lib/abbeyRoad.js"></script>
     <script src="./lib/harryPotter.js"></script>
-    <!-- connect your new JavaScript file here -->
+    <script src="./lib/Harrypotterexercise.js"></script>
+    <script src="./lib/abbeyRoadExercise.js"></script>
   </head>
 
   <body>
diff --git a/starter-code/lib/Harrypotterexercise.js b/starter-code/lib/Harrypotterexercise.js
new file mode 100644
index 0000000..f0957a0
--- /dev/null
+++ b/starter-code/lib/Harrypotterexercise.js
@@ -0,0 +1,23 @@
+function birthdaysArranged (array) {
+  var newArray = [];
+  for (var i=0; i<array.length; i+=2) {
+    var temp = [];
+    temp.push(array[i],array[i+1]);
+    newArray.push(temp);
+  }
+  return newArray;
+}
+
+console.log (birthdaysArranged(birthdays));
+
+var moreBirthdays = [ "Lily Evans", "30 January", "James Potter", "27 March",
+                      "Dudley Dursley", "30 June", "Tom Riddle", "31 December" ];
+
+
+console.log (birthdaysArranged(moreBirthdays));
+
+
+var birthday1 = birthdaysArranged(birthdays);
+var birthday2 = birthdaysArranged(moreBirthdays);
+
+console.log(birthday1.concat(birthday2));
diff --git a/starter-code/lib/Iteration3.js b/starter-code/lib/Iteration3.js
new file mode 100644
index 0000000..85998a0
--- /dev/null
+++ b/starter-code/lib/Iteration3.js
@@ -0,0 +1,49 @@
+var goodPsswd = "1234567890";
+var badPsswd = "1123456";
+
+var noRepeatChar = function (password) {
+  for (var i=0; i<password.length; i++) {
+    if ((password.indexOf(password[i]))!==i) {
+      return "Bad password";
+    }
+  }
+  return "Good password";
+};
+
+console.log(noRepeatChar(goodPsswd));
+//"Good password."
+
+console.log(noRepeatChar(badPsswd));
+// "Ouch, bad password."
+
+
+var goodPsswd = "1234567890";
+var badPsswd = "1a234567890";
+
+var onlyNumbers = function (password) {
+ for (var i=0; i<password.length; i++) {
+    if (isNaN(password[i])) {
+      return "Bad password";
+    }
+  }
+  return "Good password";
+};
+
+console.log(onlyNumbers(goodPsswd));
+// "Good password."
+
+console.log(onlyNumbers(badPsswd));
+// "Ouch, bad password."
+
+
+
+var goodPsswd = "1234567890";
+var badPsswd = "12345678901234567890";
+
+var trimPassword = function (password) {
+    return password.substring(0,9);
+};
+
+
+console.log(trimPassword(badPsswd));
+// "1234567890"
diff --git a/starter-code/lib/abbeyRoadExercise.js b/starter-code/lib/abbeyRoadExercise.js
new file mode 100644
index 0000000..f709bba
--- /dev/null
+++ b/starter-code/lib/abbeyRoadExercise.js
@@ -0,0 +1,11 @@
+var novemberSongs = abbeyRoadRecords.filter( function(songs) {
+ return songs.month=11;
+});
+
+console.log(novemberSongs);
+
+var novemberArtists = novemberSongs.map ( function(songs) {
+ return songs.artist;
+});
+
+console.log(novemberArtists);
