Some tricks I had to do to recover a class object definition from a saved one on a running Espruino Pico

Ahh - sorry, I should have checked your attached file. That's much clearer.

It's odd actually because if runningStats was a global variable it should have got dumped. It might be that just doing var runningStats = stopwatch.runningStats; dump() (if that's where it was) would have caused dump() to try and reconstruct it.

Could we get versionning every time we save a source, maybe just renaming the previous same named file with an added time stamp automatically?

Annoyingly I don't think the Chrome app can do that - maybe it could manage with the 'projects' feature, but it definitely wouldn't work with the online version in the web browser :(

I think realistically the best method would some kind of Git integration as on http://forum.espruino.com/conversations/296367/#comment14577373