Password complexity, field validation and uniqueness of nickname with email?

Question

Angular

Tell. How is it implemented? I understand through the filter?

Answer 1

Check out the article about forms in Angular. All the main validation mechanisms are described there. link to the article
For the complexity of the password, you can try to look for a ready-made directive, most likely someone is confused.

Answer 2

https://github.com/Groxot/ng-password-strength for the password... redesigned a little for myself in order to validate in the model.