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listening-attr-set.html
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listening-attr-set.html
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<!doctype html>
<html class="no-js">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title></title>
<meta name="description" content="">
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.6.0/underscore-min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/backbone.js/1.1.2/backbone-min.js"></script>
<script>
var Book = Backbone.Model.extend({
defaults: {
title: '',
pages: 0
},
initialize: function(){
console.log('Cambiaremos el modelo');
this.on('change', function(){
console.log('Mi libro ha sido modificado');
});
this.on('change:title', function(){
console.log('Hemos modificado el título');
});
},
setTitle: function(newTitle){
this.set('title', newTitle);
}
});
var book = new Book();
book.set('title', 'Cervantes en Barcelona');
console.log(book.toJSON());
book.setTitle('Para leer a Cervantes');
console.log(book.toJSON());
</script>
</body>
</html>