A minimal example of Backbone.js.
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<html>
<head>
<meta charset="utf-8">
<title>Backbone</title>
<link type="text/css" href="index.css" rel="stylesheet"/>
<!-- dependencies -->
<script src="https://d3js.org/d3.v3.min.js"></script>
<script src="https://underscorejs.org/underscore-min.js"></script>
<script src="https://backbonejs.org/backbone-min.js"></script>
<script src="backbone.d3view.js"></script>
<script src="backbone.localStorage-min.js"></script>
<!-- your views go here -->
<script src="AppView.js"></script>
<script src="ItemView.js"></script>
<!-- your models go here -->
<script src="Items.js"></script>
</head>
<body>
<script src="index.js"></script>
</body>
</html>
Modified http://d3js.org/d3.v3.min.js to a secure url
Modified http://underscorejs.org/underscore-min.js to a secure url
Modified http://backbonejs.org/backbone-min.js to a secure url
https://d3js.org/d3.v3.min.js
https://underscorejs.org/underscore-min.js
https://backbonejs.org/backbone-min.js