JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://cdn.kendostatic.com/2012.2.710/js/kendo.all.min.js"></script>
<script>7
    var model = kendo.data.Model.define({
        id: "ID",
        fields: {
            "Name": { type: "string" }
        }
    });
    var obj = new model();
    obj.set("Name","Johhny Foosball");    
    var newObj = $.extend({}, obj);
    delete newObj.toJSON;
    document.write(newObj.dirty);
    document.write(JSON.stringify(newObj));    
</script>