How can I implement form validation in reactive forms?

How can I implement form validation in reactive forms?

You can implement form validation in reactive forms by using Angular's ReactiveFormsModule. Start by creating a FormGroup and FormControl.

What are the different types of validators I can use?

You can use built-in validators like required, minLength, maxLength, and pattern. You can also create custom validators.

How do I display error messages for invalid fields?

You can check the validity of each control and display error messages conditionally in your template using *ngIf.

Can I validate fields based on the values of other fields?

Yes, you can create cross-field validation by writing a custom validator that checks the values of multiple controls.