We’re close to starting a beta test for this thing, but before that I’d love it if a few people could try the editor out and file bugs.
You can see a few example pages here:
(Ultimately they’ll be embedded in the existing MDN pages for these functions and properties.)
Right now we are most interested in functional bugs: things you tried to do that behaved weirdly or brokenly.
Please file bugs here: https://github.com/mdn/interactive-examples