Check if a input box is empty

Question

How can I check if a given input control is empty? I know there is $pristine property on the field which tells that if a given field is empty initially but what

Answer 1

Another approach is using regex , as show below , you can use the empty regex pattern and achieve the same using ng-pattern

HTML :

 
 

 
 Please enter!
 great!

Controller:@formController :

var App = angular.module('app', []);
App.controller('formController', function ($scope) {              
  $scope.mypattern = /^\s*$/g;
});