I've used Proxy in the past. It doesn't allow for the capture of both `object.attr_does_not_exist` and `object.methodDoesNotExist()` simultaneously, it is one or the other. I will admit that I am trying to use another lang's paradigms in JS, but only because it is so similar and it makes sense to me.

But I may be able to use Proxy just to capture object changes. I will try it out

Could you have your "get" handler do its thing and have it forward on the arguments it received to the "apply" handler if necessary with an extra flag argument and vice versa?

Check this out: https://gist.github.com/torgeir/e528337e7a9a41c96ac9