_.bindAll @

01/script.coffee

@@ -24,7 +24,7 @@ jQuery ->
     initialize: ->
       # We're using [Underscore.js's bindAll method](http://documentcloud.github.com/underscore/#bindAll) 
       # to bind all the view's methods to this instance of our view.
-      _.bindAll @
+      _.bindAll @, 'render'
       @render()
 
     # `render()` renders the view in `@el`. It must be called by the us; 

02/script.coffee

@@ -12,7 +12,7 @@ jQuery ->
     el: $ 'body'
 
     initialize: ->
-      _.bindAll @
+      _.bindAll @, 'render', 'addItem'
       @counter = 0
       @render()
 

03/script.coffee

@@ -35,7 +35,7 @@ jQuery ->
     # [`add`](http://documentcloud.github.com/backbone/#Collection-add) event 
     # to the `appendItem()` method.
     initialize: ->
-      _.bindAll @
+      _.bindAll @, 'render', 'addItem', 'appendItem'
 
       @collection = new List
       @collection.bind 'add', @appendItem

04/script.coffee

@@ -1,78 +1,78 @@
 # ##Using a Dedicated View for a Model
 
-# We added a model and collection in the 
-# [previous example](/03/docs/script.html), but our main application view 
-# still held the structure for our model. We'll add a dedicated view, 
-# `ItemView`, for our `Item` model. [The implementation](../) for this part 
+# We added a model and collection in the
+# [previous example](/03/docs/script.html), but our main application view
+# still held the structure for our model. We'll add a dedicated view,
+# `ItemView`, for our `Item` model. [The implementation](../) for this part
 # looks exactly the same as the [implementation of Part 3](/03/).
 
 #
 jQuery ->
-  
+
   class Item extends Backbone.Model
-    
+
     defaults:
       part1: 'Hello'
       part2: 'Backbone'
-  
-  
+
+
   class List extends Backbone.Collection
-    
+
     model: Item
-  
-  
+
+
   # The `ItemView` is now responsible for rendering each `Item`.
   class ItemView extends Backbone.View
-    
+
     # `tagName` is used to create our
     # [`@el`](http://documentcloud.github.com/backbone/#View-el). You can also
     # add `className` and `id` properties, but `tagName` is enough for this
     # simple example.
     tagName: 'li'
-    
+
     initialize: ->
-      _.bindAll @
-    
+      _.bindAll @, 'render'
+
     render: ->
       $(@el).html "<span>#{@model.get 'part1'} #{@model.get 'part2'}!</span>"
-      # Returning `@` is considered a good practice. It let's us chain method 
+      # Returning `@` is considered a good practice. It let's us chain method
       # calls (i.e., `item_view.render().el`).
       @
-  
-  
+
+
   class ListView extends Backbone.View
-    
+
     el: $ 'body'
-    
+
     initialize: ->
-      _.bindAll @
-      
+      _.bindAll @, 'render', 'addItem', 'appendItem'
+
       @collection = new List
       @collection.bind 'add', @appendItem
-      
+
       @counter = 0
       @render()
-    
+
     render: ->
       $(@el).append '<button>Add List Item</button>'
       $(@el).append '<ul></ul>'
-    
+
     addItem: ->
       @counter++
       item = new Item
       item.set part2: "#{item.get 'part2'} #{@counter}"
       @collection.add item
-    
-    # `appendItem()` no longer renders an individual `Item`. Rendering is 
+
+    # `appendItem()` no longer renders an individual `Item`. Rendering is
     # delegated to the `render()` method of each `ItemView` instance.
     appendItem: (item) ->
       # Instantiate a new `ItemView` using `item` as the `model`.
       item_view = new ItemView model: item
       $('ul').append item_view.render().el
-    
+
     events: 'click button': 'addItem'
-  
-  
+
+
   list_view = new ListView
 
 # Onward to [Part 5](/05/docs/script.html)