JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://documentcloud.github.com/underscore/underscore-min.js"></script>
<script src="http://documentcloud.github.com/backbone/backbone-min.js"></script>

JavaScript

var content = [{"content":"Hi there","id":1},{"content":"How are you?","id":2}];

var Messages = Backbone.Collection.extend({
    url:'/echo/json',
    parse:function(resp) {
      return content;
    }
});

var messages = new Messages();

messages.fetch({
    success:function() {
        console.log(messages.toJSON(),'Length:',messages.length);
    }
});