Single integer as key in firebase (Firebase array behavior)

Question

If I insert data into node/a/0 in firebase.

the result will treat a is an array a[0].

The same way, if I set my data in

Answer 1

Yes, storing 0 and 1 as the key will have an issue as Firebase will think it is an array.

My simple workaround is using:

String(format:"%03d", intValue)

So that the resulting key will be "000" and "001", and they can be converted back to Int with ease.