ClosedRange Firebase Swift读写

Question

I am using a Closed range eg let ageRange = ClosedRange(18...45)

What is the best way of saving this to Firebase DB? Do I need to save the lower and upper bound separately?

Thanks

Answer 1

The Firebase Database can only store JSON types.

Since ClosedRange is not a JSON type, you'll have to find a way to convert it back and forth.

Two common ways to do this:

1. Store it as a single string
2. Store its constituent parts

The first one is often easiest. But the second option has the advantage that you can query for its parts.