diff --git a/challenges/basic-javascript.json b/challenges/basic-javascript.json
index 42233ed0e62..9d4e5b0b121 100644
--- a/challenges/basic-javascript.json
+++ b/challenges/basic-javascript.json
@@ -259,7 +259,7 @@
       "challengeSeed": [
         "var firstName = \"Madeline\";",
         "",
-        "var thirdToLastLetterOfFirstName = firstName[firstName.length - 2];",
+        "var thirdToLastLetterOfFirstName = firstName[firstName.length - 3];",
         "",
         "var lastName = \"Chen\";",
         "",
@@ -601,7 +601,7 @@
       ],
       "challengeSeed": [
         "var myArray = ['John', 23, ['dog', 3]];",
-        "var removed = myArray;//This should be ['John'] and myArray should now be ['John', 23]",
+        "var removed = myArray;//This should be ['John'] and myArray should now be [23, ['dog', 3]]",
         "",
         "",
         "(function(y, z){return('myArray = ' + JSON.stringify(y) + ' & removed = ' + JSON.stringify(z));})(myArray, removed);"
@@ -725,9 +725,9 @@
         "",
         "Now that we have an objects we need to know how to add and remove properties from it",
         "We add properties to objects like this",
-        "<code>myObject['myProperty'] = \"myValue\";</code>",
+        "<code>myObject.myProperty = \"myValue\";</code>",
         "They can also be deleted like this",
-        "<code>delete(myObject[\"myProperty\"]);</code>",
+        "<code>delete(myObject.myProperty);</code>",
         "Let's add the property bark",
         ""
       ],
@@ -752,7 +752,7 @@
         "   \"friends\": []",
         "};",
         "",
-        "//Let's add the property age to myDog",
+        "//Let's add the property bark to myDog",
         "",
         "",
         "//Now delete the property tails",
@@ -1027,7 +1027,7 @@
       ],
       "tests":[
         "assert(test === 2, 'Your RegEx should have found two numbers in the testString');",
-        "assert(editorValue.match(/\\/\\\\d\\+\\//gi), 'You should be using the following expression /\\d+/gi to find the numbers in the testString');"
+        "assert(editor.getValue().match(/\\/\\\\d\\+\\//gi), 'You should be using the following expression /\\d+/gi to find the numbers in the testString');"
       ],
       "challengeSeed":[
         "var test = (function(){",
@@ -1058,7 +1058,7 @@
       ],
       "tests":[
         "assert(test === 7, 'Your RegEx should have found seven spaces in the testString');",
-        "assert(editorValue.match(/\\/\\\\s\\+\\//gi), 'You should be using the following expression /\\s+/gi to find the spaces in the testString');"
+        "assert(editor.getValue().match(/\\/\\\\s\\+\\//gi), 'You should be using the following expression /\\s+/gi to find the spaces in the testString');"
       ],
       "challengeSeed":[
         "var test = (function(){",
@@ -1087,7 +1087,7 @@
       ],
       "tests":[
         "assert(test === 36, 'Your RegEx should have found seven spaces in the testString');",
-        "assert(editorValue.match(/\\/\\\\S\\/gi/gi), 'You should be using the following expression /\\S+/gi to find the spaces in the testString');"
+        "assert(editor.getValue().match(/\\/\\\\S\\/gi/gi), 'You should be using the following expression /\\S+/gi to find the spaces in the testString');"
       ],
       "challengeSeed":[
         "var test = (function(){",
diff --git a/loopbackMigration.js b/loopbackMigration.js
index f6b98b8b7b1..333629438af 100644
--- a/loopbackMigration.js
+++ b/loopbackMigration.js
@@ -38,13 +38,13 @@ function createConnection(URI) {
 }
 
 function createQuery(db, collection, options, batchSize) {
-  return Rx.Observable.create(function (observer) {
+  return Rx.Observable.create(function(observer) {
     var cursor = db.collection(collection).find({}, options);
     cursor.batchSize(batchSize || 20);
     // Cursor.each will yield all doc from a batch in the same tick,
     // or schedule getting next batch on nextTick
     debug('opening cursor for %s', collection);
-    cursor.each(function (err, doc) {
+    cursor.each(function(err, doc) {
       if (err) {
         return observer.onError(err);
       }
@@ -55,7 +55,7 @@ function createQuery(db, collection, options, batchSize) {
       observer.onNext(doc);
     });
 
-    return Rx.Disposable.create(function () {
+    return Rx.Disposable.create(function() {
       debug('closing cursor for %s', collection);
       cursor.close();
     });
@@ -86,13 +86,13 @@ var users = dbObservable
   .map(function(user) {
     // flatten user
     assign(user, user.portfolio, user.profile);
-    return user;
-  })
-  .map(function(user) {
     if (user.username) {
       return user;
     }
     user.username = 'fcc' + uuid.v4().slice(0, 8);
+    if (user.github) {
+      user.isGithubCool = true;
+    }
     return user;
   })
   .shareReplay();
@@ -122,7 +122,7 @@ var userIdentityCount = users
         return {
           provider: provider,
           externalId: user[provider],
-          userId: user.id
+          userId: user._id || user.id
         };
       })
       .filter(function(ident) {
@@ -161,33 +161,15 @@ var storyCount = dbObservable
   })
   .count();
 
-var commentCount = dbObservable
-  .flatMap(function(db) {
-    return createQuery(db, 'comments', {});
-  })
-  .bufferWithCount(20)
-  .withLatestFrom(dbObservable, function(comments, db) {
-    return {
-      comments: comments,
-      db: db
-    };
-  })
-  .flatMap(function(dats) {
-    return insertMany(dats.db, 'comment', dats.comments, { w: 1 });
-  })
-  .count();
-
 Rx.Observable.combineLatest(
   userIdentityCount,
   userSavesCount,
   storyCount,
-  commentCount,
-  function(userIdentCount, userCount, storyCount, commentCount) {
+  function(userIdentCount, userCount, storyCount) {
     return {
       userIdentCount: userIdentCount * 20,
       userCount: userCount * 20,
-      storyCount: storyCount * 20,
-      commentCount: commentCount * 20
+      storyCount: storyCount * 20
     };
   })
   .subscribe(