Validator components description and its attributes

The validator component is an interface that informs to the Form when to enable the FormSubmit button. It is based on the observability concept, which FormInput will validate the submitted information and then send them to the Validator.

There are two ways to use Form Validator:

  1. Clicking on FormSubmit
  2. Calling the notifyObservers method inside the FormInput.

Last modified February 11, 2021: create content (#298) (43225e15)