Thank you!
Perhaps every topic could have just a link to JSBin, where you or community could post practical tasks.
Eg. in Code Academy, I like that once you learn something, next screen is empty and just says: Do this or do that. So you have to remember the statement. Sometimes it gives just several pieces, that you have to use to completed whole intended code sample.
So I hope that in the future you will be able to add that component 😉