Plain javascript

This guy Pablo Olóndriz made a game in plain javascript, and it's pretty cool!

• Game - https://mystifying-mestorf-96fdf3.netlify.com/
• Article - https://hackernoon.com/i-built-a-game-in-vanilla-js-and-i-didnt-know-how-to-code-3-months-ago-u12036qk

I recommend anyone who wants to play and learn web development use https://glitch.com/. I've started a few projects, but the only one I'm proud of is onetimepad.glitch.me.
And I guess prettyprint.glitch.me is ok too, though it's really just a couple open source libraries with a wrapper.