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

Zachary Hall
Zachary Hall
527 Points
Posted by Zachary Hall
Zachary Hall
527 Points

I don't find the hint that helpful in getting me unstuck. Where can I get more hints or the answer?

The hint is telling me to call the console.log function inside the $render function. I'm already doing that, so it is not that helpful.

Where can I find out what it is looking for?

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) {

      ngModelControl.$render = function() {
        var contents = ngModelCtrl.$viewValue;
        console.log(contents);
      }

    }
  }
});
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>
Zachary Hall
Zachary Hall
527 Points
Zachary Hall
Zachary Hall
527 Points

I used this function and it worked:

ngModelCtrl.$render = function() { var contents = ngModelCtrl.$viewValue; console.log(contents); }

The difference is, as Riley pointed out below, that I had originally misspelled ngModelCtrl.

1 Answer

Riley Hilliard
Riley Hilliard
Courses Plus Student 17,771 Points

Looks like you spelled 'ngModelControl' wrong. It has to match the dependency you declared in your 'link' function. If you reference this to 'ngModelCtrl' it should pass, as it is then referencing the proper dependency.