title: how to fetch data in firebase when the child is nested from a table
body: <p><a href="https://i.stack.imgur.com/d5FUM.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/d5FUM.png" alt="enter image description here"></a></p>
  
  <p>The above image is my database structure in firebase. I don't know how to fetch the data inside the child <code>Latlng</code>. How would I fetch it?</p>