Thanks for your response.
I’m working with inputs type text and selects on my form. I have some required inputs and selects that appear if the user clicks “yes” on a select. If user clicks “no” those required fields are not shown and are sent empty which is fine.
For inputs, if they are empty it’s value is ” ” but for selects with first_as_label option I don’t know what value is sent. Do you know how to find it?