JSFiddle - React, Tailwind, and code Playground

JavaScript

//var Model = Backbone.Model.extend({
//    collection: null,
//    initialize: function(){
//        this.collection = new Collection();
//    }
//});

//var Collection = Backbone.Collection.extend({
//    model: Model
//});

//var collection = new Collection([{}]),
//    submodel = new Model({});

//collection.add(submodel);
//collection.at(0).collection.add(submodel);

console.log("dsfdsfsdf");