title: How do I read a username from the firebase realtime database in javascript?
body: <p>Here is the structure of my database, where the long string of characters is the user id. </p>
  
  <p>How do I read the username of the user if I know the user id is set to the variable uid?</p>
  
  <p><a href="https://i.stack.imgur.com/Wg028.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Wg028.png" alt="Database Structure"></a></p>