auto

assign5/assign5.md

@@ -239,6 +239,8 @@ https://sedna.cs.umd.edu/436clips/vids/horses.mp4"
 - You can regenerate a reasonable, syntactically correct db as follows:
 ```
  let root = Database.database().reference()
+ root.child("seen").setValue(nil)
+ root.child("urls").setValue(nil)
 
  let vid1 = root.child("urls").childByAutoId()
  vid1.setValue(["name": "Neo romps happily in the snow",