diff --git a/checkpoint-javascript-seir b/checkpoint-javascript-seir
new file mode 160000
index 0000000..e1b1be2
--- /dev/null
+++ b/checkpoint-javascript-seir
@@ -0,0 +1 @@
+Subproject commit e1b1be2b09a6d0d101efd940254a0f09f6fe3555
diff --git a/fundamentals.js b/fundamentals.js
index e3877d9..b3219ff 100644
--- a/fundamentals.js
+++ b/fundamentals.js
@@ -3,29 +3,38 @@
 // #1: Create an array of strings called `foods` that contains three foods.
 // Type your solution immediately below this line:
 
-
+foods = [ham, cheese, fish];
 
 // #2: Access the last item in the array and assign to a variable called `last`.
 // Type your solution immediately below this line:
 
-
+last = fish.slice(-1)[0]
 
 // #3: Create an empty array called `favoriteFoods`.
 // Type your solution immediately below this line:
 
-
+favoriteFoods = []
 
 // #4: Create a `for` loop that adds each string in `foods` to `favoriteFoods`.
 // Type your solution immediately below this line:
-
+for(i =0,i < foods.length - 1, i++) {
+    favoriteFoods = foods(i)
+}
 
 
 // #5: Create an object literal called `instructor` that contains three key-value pairs.
 // Type your solution immediately below this line:
+instructor = {
+    name:"bob",
+    city:"new york",
+    age: 30
+
 
+}
 
 
 // #6: Add a `has-office-hours` (spelled exactly) property to `instructor` by accessing
 // it (do not change the original object you typed above) and assigning it
 // a boolean value.
 // Type your solution immediately below this line:
+instructor.has-office-hours =true;
\ No newline at end of file
diff --git a/hof.js b/hof.js
index c8d3baa..1c10bed 100644
--- a/hof.js
+++ b/hof.js
@@ -20,7 +20,11 @@ var people = [
 // person in the `people` array. Assign the returned array to a variable
 // called `peopleNames`.
 // Type your solution immediately below this line:
-
+var peopleNames = []
+var peopleNames =  people.map() {
+   
+  return  peopleNames
+});
 
 
 // #2: Use the `filter` array method to create a new, filtered array containing only
diff --git a/oojs.js b/oojs.js
index 4c836c7..d64449f 100644
--- a/oojs.js
+++ b/oojs.js
@@ -5,7 +5,25 @@
 // - a `songs` property that is an empty array not determined by input (not passed into the constructor)
 // - an `addSong` method that adds a song (string) to the `songs` array
 // Type your solution immediately below this line:
+class myPlaylist {
 
+  constructor(title) {
+    this.title = title;
+  }
+
+  constructor(song)
+    this.song = []
+
+  addSong(sng) {
+    song.push(sng);
+    return this.song 
+  }
+
+}
+
+// Usage:
+let user = new User("John");
+user.sayHi();
 
 
 
@@ -14,7 +32,7 @@
 // Call the instance's `addSong` method to add a song to the instance's `songs` array
 // Type your solution immediately below this line:
 
-
+var myPlaylist = new MyPlaylist.addSong