Form Validations

AngularJS Validations

Validation ensures that user data is perfectly formatted before it is submitted.

AngularJS excels at client-side validation, offering immediate feedback to the user!

Built-in Validators

AngularJS respects standard HTML5 validation attributes automatically.

Attributes like required, minlength, and type="email" are tracked seamlessly.

If an input fails any of these rules, the framework flags it as invalid immediately.

Form Tracking Properties

AngularJS generates extremely helpful tracking properties on the form object.

You can use $valid and $invalid to conditionally show errors or disable submit buttons.

You can also use $dirty to check if the user has actually interacted with the field yet!

<div ng-app="">
  <!-- Defining a named form -->
  <form name="myForm">
    Email:
    <input type="email" name="myAddress" ng-model="text" required>
    
&lt;!-- Triggers only if the email input specifically is invalid --&gt;
&lt;span ng-show="myForm.myAddress.$invalid"&gt;Invalid Address!&lt;/span&gt;

  </form>
</div>

SEO and Best Practices

Client-side validation is incredibly fast, significantly improving the user experience.

However, client-side code can always be bypassed by malicious attackers.

For absolute security, you must always double-validate data on your backend server!