kswin

<form ng-app="App" ng-controller="AppController" name="myForm">
  <div ng-messages="myForm.date.$error">
    <div ng-message="parse">Please enter a valid date</div>
  </div>
  <input
    date-digits
    name="date" 
    ng-model="date"
    type="text"/>

kswin

angular
  .module('App', ['ngMessages'])
  .controller('AppController', ($scope) => {
    $scope.date = moment();
  })
  .directive('dateDigits', () => ({
    restrict: 'A',
    require: 'ngModel',
    link: (scope, elem, attr, ngModelController) => {
      const monthDayYear = 'MM-DD-YYYY';