JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdn.jsdelivr.net/underscorejs/1.8.3/underscore.js"></script>
<script src="https://cdn.jsdelivr.net/backbonejs/1.2.3/backbone.js"></script>

Babel + JSX

const { Model, Collection } = Backbone;

class Plant extends Model {
    defaults() {
        return {
            name: 'Not specified',
            height: 0
        }
    }
}

class Greenhouse extends Collection {
    constructor(options) {
        super(options);
        this.model = Plant;
    }
}

let plant1 = new Plant({ name: 'Rose' });
let plant2 = new Plant({ name: 'Daisy' });

let house = new Greenhouse([plant1, plant2]);

house.each(function(plant) {
    console.log(plant.get('name'))
});