A Community Resource means that it’s free to access for all. The instructor of this lesson requested it to be open to the public.
i wonder what is this editor that you use to produce your episodes? You all seem to use different editors, unless it is different settings of WebStorm?
For this episode (and many others) the editor is JSBin. It looks like the JSBin link is broken, but you can view and play with the source/editor for this lesson here: http://jsbin.com/sapafe/latest/edit?js,console
We do tend to use a variety of editors since different lessons have different requirements and as instructors we have our own preferences. JSBin is great for small prototypal stuff and has great ES6/Babel support.
Personally, I use WebStorm combined with SublimeText day-to-day (you can peak at my Sublime setup here: https://egghead.io/lessons/ecmascript-6-es6-modules-es2015-import-and-export and my WebStorm setup here: https://egghead.io/lessons/misc-webstorm-installing-custom-color-schemes-dayleress-colour-schemes)
jsbin is pretty cool. I did not know about it. thanks.