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<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<meta name=”description” content=”Backbone.js tutorial code sample”>  
<link rel=”author” href=”https://plus.google.com/u/0/+ArvindRavulavaru“/>
<title>Backbone.js Tutorial - Arvind Ravulavaru</title>
  
</head>
<body>
  
  
  <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
  <script type="text/javascript" src="http://documentcloud.github.com/underscore/underscore-min.js"></script>
  <script type="text/javascript" src="http://documentcloud.github.com/backbone/backbone-min.js"></script>  
</body>
</html>
 
var Todo = Backbone.Model.extend({
  defaults: {
    title: '',
    completed: false
  }
});
​
var TodosCollection = Backbone.Collection.extend({
  model: Todo
});
​
var myTodo0 = new Todo({title:'Read the whole book', id: 1});
var myTodo1 = new Todo({title:'Read half book', id: 2});
​
// pass array of models on collection instantiation
var todos = new TodosCollection([myTodo0,myTodo1]);
console.log("Collection size: " + todos.length);
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