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JavaScript AngularJS An Introduction to Two-Way Data Binding Two-Way Binding: ngModelCtrl

Hossam Khalifa
Hossam Khalifa
17,200 Points

Stuck here

Can not start anything with this challenge

app.js
angular.module('myApp', [])
.controller('myController', function($scope) {
  $scope.user = {
    name: 'Alex'
  };
})
.directive('myDirective', function () {
  return {
    require: 'ngModel',
    priority: 1,
    link: function ($scope, $element, $attrs, ngModelCtrl) {

      // YOUR CODE HERE

    }
  }
});
index.html
<!DOCTYPE html>
<html ng-app="myApp">
<head>
  <title>Angular.js</title>
  <script src="js/angular.js"></script>
  <script src="app.js"></script>
</head>
<body ng-controller="myController">

  <p>Hello {{user.name}}</p>
  <input type="text" ng-model="user.name" />
  <div my-directive ng-model="user.name"></div>

</body>
</html>

1 Answer

I think you need to inject $scope then the function. I made a plunker to show you it working. You can move the code inside the script tag to your js file. http://plnkr.co/edit/suOZoGvKN8XTukJBJO32?p=preview

angular.module('myApp', [])
  .controller('myController',  ['$scope',  function($scope) {
    $scope.user = {
      name: 'Alex'
    }
}]);

.directive('myDirective', function () {
  return {
    require: 'ngModel',
    priority: 1,
    link: function ($scope, $element, $attrs, ngModelCtrl) {

      // YOUR CODE HERE

    }
  }
});

So your html can be this

<!doctype html>
<html lang="en" ng-app="myApp">
<head>
  <title>Angular.js</title>
  <script src="js/angular.js"></script>
  <script src="app.js"></script>
</head>
<body ng-controller="myController">
  <div>
    Enter name: <input type="text" ng-model="user.name"><br>
    Hello <span ng-bind="user.name"></span>!
  </div>
  </body>
</html>

Are you loading the libraries correctly? You have angular in a js folder and not your app file?

Prefixed with js/ <script src="js/angular.js"></script>

not prefixed with js/ <script src="app.js"></script>