How can I implement form validation in Angular?

How can I implement form validation in Angular?

You can implement form validation in Angular using Reactive Forms or Template-driven Forms. Which one would you like to know more about?

I'd like to know about Reactive Forms.

Great! Reactive Forms allow you to create forms in a more programmatic way. You can use FormGroup and FormControl to manage the form state and validation.

How do I add validation rules to my form controls?

You can add validation rules by passing an array of validators to the FormControl. For example, new FormControl('', [Validators.required, Validators.minLength(3)]).

Can I create custom validators?

Yes, you can create custom validators by defining a function that returns either null (if valid) or an object (if invalid). Would you like an example?