Form validation is an essential feature for any application that collects user input. It ensures that the data entered by the user is correct. Without validation, our database would be filled with incorrect or incomplete data which would lead to errors, security issues, or a poor user experience. In this post, we will be looking at how to validate a form with React form using as an example an application to reserve office spaces, built using the Expo ecosystem and Supabase platform as the storage manager.