There's a programming club at my school and im making a minecraft themed game so i was just telling all of you's!
Good luck programming a game in Javascript. Seriously, I mean it. Javascript isn't made for games, and even making a simple one if an amazing feat.
If you're starting off, I'd recommend using Unity. It's free to download, and requires very little programming knowledge. Now, before you say anything, Unity does use Javascript, but only because it has a large system backing it that you don't see, and the Javascript simply interfaces with that.