Extra jQuery in Magento 2

Question

In Magento 2, if I use my Javascript debugger's console, I notice there's a global object with a jQuery prefix defined.

> jQuery111001331609229091555
Object {events: Object}
events: Object
handle: ( e )
toJSON: ()
__proto__: Object

What is this object? Where does it come from?

Answer 1

It used by jQuery itself. Looks like for internal in library use.

You should not worry about such object.

But you should worry about using global window and instance of window.jQuery. Prefer way is to use jQuery via RequireJs:

require(['jquery'], function ($) { ... });

or

var $ = require('jquery');