Form Validations for password can be found inside the Forms & Validations section of the template.
How to use authentication pages?
Each of these pages has a Form with the inputs required by the page such as username, email and password. We use Angular Reactive Forms from @angular/forms library.
Angular Reactive Forms
Angular reactive forms, also known as model-driven forms, offers an easy way to use reactive patterns and validations. They follow the reactive programming style that supports an explicit data management flow between non-UI data models (frequently retrieved from a server) and a UI-oriented form model that keeps the states and values of HTML controls on the app screen. Learn more here.
Submit the Authentication Forms
As we mentioned before, we don't use any specific backend for this template. However, if you are going to provide a custom email/password authentication you will need a backend for this. You can try Firebase Firestore Database and use this tutorial as a guide.