Using Advanced Validation
Explore advanced validation in Angular reactive forms to improve user experience on mobile and assistive devices. Learn to validate usernames asynchronously, apply regex for phone numbers, and implement cross-field password checks to ensure form accuracy and responsiveness.
Why use form validation
Form validation is more than just ensuring the user entered something into each element. It can be a crucial asset for users on phones (where a contextual keyboard will pop up on the phone), folks who use screen readers, or people who are just in a hurry and don’t notice minor mistakes.
In all of these cases, having the form pop-up reminders, as soon as it knows what’s wrong, will be a boon for the user.
Let’s dive into validation beyond a basic phone number and brainstorm a few rules about our form.
📝 Inline Error Messages
For the ...