This upload is absolutely useless, it's either a bunch of test none of which works, or interactive elements that you can't interact with, or contains pieces of code that you can't actually scroll, and therefore can't even see the implementations... So what's the point of this? To anyone reading this, unless you can manage the feeling of only getting partial information for most sections, then you are better off not wasting your time downloading this.
I don't know, maybe I'm missing some general instruction on how to use this upload? Otherwise this is better off deleted, to not mislead people into thinking that they are getting actual course.
Note: sorry for the rant, but most Educative.io uploads in this site are mostly useless. At least the JavaScript related ones
