<!doctype html>
<html ng-app="ui.bootstrap.demo">
  <head>
    <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.4.9/angular.js"></script>
    <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.4.9/angular-animate.js"></script>
    <script src="//angular-ui.github.io/bootstrap/ui-bootstrap-tpls-1.1.2.js"></script>
    <script src="example.js"></script>
    <link href="//netdna.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet">
  </head>
  <body>

<div ng-controller="DatepickerDemoCtrl">
  
    <h4>Datepicker ng-model string value issue</h4>
    Doesn't work
    <div>
      <input uib-datepicker-popup="{{format}}" ng-model="startDate"
      is-open="dateOpened"
      ng-click="dateOpened=!dateOpened"
      placeholder="It Doesn't work. Just click and see the logs"
      class="form-control input-sm"/>
    </div>
    <br/>
    Works fine if Date object is passed
    <div>
      <input uib-datepicker-popup="{{format}}" ng-model="endDate"
      is-open="dateOpened2"
      ng-click="dateOpened2=!dateOpened2"
      class="form-control input-sm"/>
    </div>

</div>
  </body>
</html>
angular.module('ui.bootstrap.demo', ['ngAnimate', 'ui.bootstrap']);
angular.module('ui.bootstrap.demo').controller('DatepickerDemoCtrl', function ($scope) {
  $scope.format = 'MM-dd-yyyy';
  
  $scope.startDate = '10-11-2015';
  $scope.endDate = new Date();
});