How can I implement validation in Angular form builder?

How can I implement validation in Angular form builder?

You can implement validation in Angular form builder by using reactive forms and adding validators to your form controls.

What types of validators can I use?

You can use built-in validators like required, minLength, maxLength, pattern, and custom validators for more complex rules.

Can you show me an example of a custom validator?

Sure! A custom validator can be a function that returns an error object if validation fails, or null if it passes.

How do I apply this custom validator to a form control?

You can apply it by passing the validator function as the second argument when creating the form control.