Step 16 -> 17

16.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);
-    }
 });

 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') });
 });