JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>

JavaScript

Backbone.$ = jQuery;

var Model = Backbone.Model.extend({
    initialize: function () {
        this.on('all', this.monitor);
    },
    monitor: function (event, model) {
        $(document.body).append(event + '<br>');
    }
});

var model = new Model({
    prop1: 'test'
});

model.set('prop1', 'test1');