Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript AngularJS An Introduction to Directives Directives: $observe

Posted by Ryan Scharfer
Ryan Scharfer
Courses Plus Student 12,537 Points

What is the difference between a directive and an attribute?

More specifically, just by looking at the HTML if you are looking at an attribute or a directive? At first glance, I would have called "course-title" a customized directive, but apparently it's an attribute.

app.js 
angular.module('myApp', [])
  .controller('myController', function ($scope) {
    $scope.title = 'My embedded title';
  })
  .directive('treehouseCourse', function () {
    return {
      link: function ($scope, $element, $attrs) {

        $attrs.$observe('courseTitle',function(newValue){console.log(newValue)})

        // 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">

  <div treehouse-course course-title="{{title}}"></div>

</body>
</html>