title: How to delete from Firebase database
body: <p>Hi i have followed this tutorial: <a href="https://www.youtube.com/watch?v=XIQsQ2injLo" rel="noreferrer">https://www.youtube.com/watch?v=XIQsQ2injLo</a></p>
  
  <p>This explains how to save and retrieve from the database, but not how to delete. I am wondering how to delete the database node that belongs to the cell that is being deleted. Thanks</p>