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JavaScript AngularJS Extending Inputs Extending Inputs: Optional require

Posted by Owen Graham
Owen Graham
14,439 Points

problem with the conditional statement?

The error says I should check that the conditional is set up correctly, but I can't find any mistake. I used the ! operator to check for an undefined ngModelCtrl, with a direct return if that's the case. Help!

app.js 
angular.module('treehouseCourse', [])
  .directive('sometimesTwoWay', function() {
    return {
    require: '?ngModel',
      link: function($scope, $element, $attrs, $ngModelCtrl) {
        if (!ngModelCtrl) {
          return;
        }

        console.log('my model', 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>

2 Answers

Lukas Smith
Lukas Smith
4,026 Points
Lukas Smith
Lukas Smith
4,026 Points

Maybe You require: '?ngModel', and the rest of code You have ngModelCtrl, So try to chnage require: '?ngModelCtrl' if i am wrong ,sorry

Jessica Evans
Jessica Evans
7,372 Points
Jessica Evans
Jessica Evans
7,372 Points

Take the $ off of the $ngModelCtrl - link: function($scope, $element, $attrs, ngModelCtrl)