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JavaScript AngularJS Extending Inputs Extending Inputs: Optional require

Posted by aidencornwell
aidencornwell
8,583 Points

Add a link function that takes four parameters: $scope, $element, $attrs, and ngModelCtrl.

I am not understanding why this is breaking part one and why this code is not working.

app.js 
angular.module('treehouseCourse', [])
  .directive('sometimesTwoWay', function() {
    return {
      // YOUR CODE HERE
      require: '?ngModel',
       link: function ($scope, $element, $attrs, ngModelCtrl)
    }
  });
index.html 
<!DOCTYPE html>
<html ng-app="treehouseCourse">
<head>
  <title>Angular.js</title>
  <script src="js/angular.js"></script>
  <script src="app.js"></script>
</head>
<body>

  <sometimes-two-way ng-model="course.description"></sometimes-two-way>

</body>
</html>

1 Answer

Veronica Rivera
Veronica Rivera
32,599 Points
Veronica Rivera
Veronica Rivera
32,599 Points

I used this code and it worked fine. The only difference I see in yours is there is a space between function and the parameter. Also you are missing one of the brackets in the link function.

angular.module('treehouseCourse', [])
  .directive('sometimesTwoWay', function() {
    return {
      // YOUR CODE HERE
      require: '?ngModel',        
      link: function($scope, $element, $attrs, ngModelCtrl){
      }


    }
  });