How can I simplify form validation?

Question

The code below seems to work pretty well for doing basic required form validation.

The form displays a red Name is required message when the field is dirty

Answer 1

index.php

   

      
      
      Required! 
      

         
         
          Add New user
         Save Change
         
Password Is Very Short.
         
Password Is Very Long.
      
   

In app.js include this function :

 $scope.submitForm = function() {
     if ($scope.myForm.$valid) {
         alert('Our Form Is Submited....');
     }
 };