How to map two fields into a single property in React Final Form

Question

In my app, I have two text fields, one for date and one for time. These fields need to map to a single property startTime in my form (of type Date). Is it possible to do this?

Answer 1

Try this: github.com/final-form/final-form-calculate

Example: http://codesandbox.io/s/oq52p6v96y