Dzmitry Shylovich

@xiexin36 not yet

Don't think they are related. This is a much more complex feature.

I'm not following. Can you add a plunkr with sample code?

http://plnkr.co/edit/7pmdu3yA8TCYGHLt1EbA?p=preview so you want to see a boolean `true` instead of an empty string in this example, right?

@FahadMullaji it's only a proposal.

I think `Observable`s from [rxjs](https://github.com/ReactiveX/rxjs) is a better choice as they have a lot of advantages over promises. Observables and [type definitions](https://github.com/JSteunou/webstomp-client/issues/7) will make this library very attractive to use...

> `...` you can create such directive yourself

@mlc-mlapis yeap

@tinchou you can map empty array to null ``` favoritesObservable.map(arr => arr.length ? arr : null) ```

pls add a repro