Step 15 -> 16

15.diff

 var events = _.clone(Backbone.Events);

 var Statuses = function() {
 };
 Statuses.prototype.add = function(text) {
     $.ajax({
         url: '/status',
         type: 'POST',
         dataType: 'json',
         data: { text: text },
         success: function(data) {
             events.trigger('status:add', data.text);
         }
     });
 };

 var NewStatusView = Backbone.View.extend({
     initialize: function(options) {
         this.statuses = options.statuses;
         this.el = options.el;

         events.on('status:add', this.clearInput, this);

         var add = $.proxy(this.addStatus, this);
         this.$('form').submit(add);
-    }
+    },
+
+    addStatus: function(e) {
+        e.preventDefault();
+
+        this.statuses.add(this.$('textarea').val());
+    },
+
+    clearInput: function() {
+        this.$('textarea').val('');
+    },
+
+    $: function(selector) {
+        return this.el.find(selector);
+    }
 });
-NewStatusView.prototype.addStatus = function(e) {
-    e.preventDefault();
-
-    this.statuses.add(this.$('textarea').val());
-};
-NewStatusView.prototype.clearInput = function() {
-    this.$('textarea').val('');
-};
-NewStatusView.prototype.$ = function(selector) {
-    return this.el.find(selector);
-};

-var StatusesView = function(options) {
-    this.el = options.el;
-
-    events.on('status:add', this.appendStatus, this);
-};
-StatusesView.prototype.appendStatus = function(text) {
-    this.$('ul').append('<li>' + text + '</li>');
-};
-StatusesView.prototype.$ = function(selector) {
-    return this.el.find(selector);
-};
+var StatusesView = Backbone.View.extend({
+    initialize: function(options) {
+        this.el = options.el;
+
+        events.on('status:add', this.appendStatus, this);
+    },
+
+    appendStatus: function(text) {
+        this.$('ul').append('<li>' + text + '</li>');
+    },
+
+    $: function(selector) {
+        return this.el.find(selector);
+    }
+});

 $(document).ready(function() {
     var statuses = new Statuses();
     new NewStatusView({ el: $('#new-status'), statuses: statuses });
     new StatusesView({ el: $('#statuses') });
 });