What are the best practices for validating Angular reactive forms?

What are the best practices for validating Angular reactive forms?

The best practices include using built-in validators, creating custom validators, and managing validation states effectively.

Can you explain how to create a custom validator?

Sure! You can create a custom validator by defining a function that returns either null or an error object based on the validation logic.

How do I handle validation errors in the UI?

You can display validation errors by checking the form control's status and using Angular's built-in directives like *ngIf to show error messages.

What are some common mistakes to avoid?

Common mistakes include not using async validators for server-side checks and failing to reset validation states on form resets.