OK, recently I ran over this site, and I have to tell it is really great.
And naturally you can share the code among your “followers”, they can edit and fork (reuse) it to help out with your problems. So I’d encourage you to give it a try. If you cannot decide which JS Framework to use: then it is a must.
Well, beside this post I’m currently trying out AngularJS as a nice alternative for dynamic web applications. Who knows, maybe I will use it on daily basis (in work and private too).