With AngularJS, you can apply a wide variety of checks and effects to form elements. This blog will go over some of the basics. Not only does Angular allow you to validate user input using built-in and custom directives, but it also automatically furnishes your elements with helpful CSS classes.
Angular will help you take advantage of the many basic validation options included in HTML5, such as the required attribute and additional input types like email and URL. Angular extends the available options with their own directives like ng-maxlength and ng-minlength.