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Question

I\'m trying to test out Firebase to allow users to post comments using push. I want to display the data I retrieve with the following;

fbl.child         


        

Answer 1

To add to Dave Vávra's answer, I use a negative timestamp as my sort_key like so

Setting

const timestamp = new Date().getTime();
const data = {
  name: 'John Doe',
  city: 'New York',
  sort_key: timestamp * -1 // Gets the negative value of the timestamp
}

Getting

const ref = firebase.database().ref('business-images').child(id);
const query = ref.orderByChild('sort_key');
return $firebaseArray(query); // AngularFire function

This fetches all objects from newest to oldest. You can also $indexOn the sortKey to make it run even faster