Ember Latest

The latest build of Ember.

HTML

<script src="http://cdnjs.cloudflare.com/ajax/libs/handlebars.js/1.0.0-rc.3/handlebars.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/ember.js/1.0.0-rc.1/ember.js"></script>
<script type="text/x-handlebars" data-template-name="index">
  <h2>Index Content:</h2>
    <a {{action clickHandler}} href="#"> Invoke Clickhandler </a>
  <ul>
  {{#each item in contentz}}
      <li>{{item.desc}}</li>
  {{/each}}
   </ul>
</script>

CSS

ul { padding: 15px; font-size: 1.4em; color: green; }

JavaScript

App = Ember.Application.create({});

App.IndexRoute = Ember.Route.extend({
  setupController: function(controller) {
      controller.set("contentz", []);
      controller.addObject(Ember.Object.create({desc : "INITIAL"}));
      controller.addObject(Ember.Object.create({desc : "INITIAL"}));
      controller.addObject(Ember.Object.create({desc : "INITIAL"}));
  }
});


App.IndexController = Ember.ArrayController.extend({
    contentz : null, //set your itemList into this property
    clickHandler:function(){
        this.get("contentz").forEach(function(item){
            item.set("desc", "CANCELLED");
        });
    }
});