Forums

Your augment code is correct for setting up a class where all events will emit a facade by default. Base does this by default, so you could extend Base. I'm not sure why you would need to do that on an instance that was already created -- modifying the default value will not have an effect on events already published. You can explicitly (re)publish any given event to change the emitFacade config, however.

-Adam

Actually, can you help me figure this out? I've tried this:



which prints only 'a'. I've also tried swapping the order of the augment and extend statements, to no effect.

The motivation for modifying an instance is that in a couple places I've made instances of Y.Base because I've wanted a singleton resource of reference for other components to keep track of shared state, somewhat in the same way as the Y object. Certain well-known attributes can be accessed through get(), and any component can subscribe to certain well-known–or arbitrary–events.

The singleton object doesn't know ahead of time of all the events that might be passed through it, so it can't pre-publish them. I suppose other components could call publish on the object upon add(). Subclassing Base for this purpose seems heavy-weight, and kind of dumb in a prototypal language, but might be the simplest thing.