npm install jquery2``js
// src/backbone.js
'use strict';
var jquery = require('jquery2');
var backbone = require('backbone');
backbone.$ = jquery;
module.exports = backbone;
`
`js
// src/main.js
'use strict';
var backbone = require('./backbone');
console.log(window.backbone);
// => undefined
console.log(backbone);
// => Backbone
console.log(window.$);
// => undefined
``