isPristine property
If the FormInput is in pristine state (hasn't been touched/modified).
Typically when the FormInput
is initially created,
it is created using the FormInput.pristine
constructor to
signify that the user has not modified it.
For subsequent changes (in response to user input), the
FormInput.dirty
constructor should be used to signify that
the FormInput
has been manipulated.
Implementation
@override
final bool isPristine;