reactive-extensions-js

How does one structure an rxjs app? There are about a hundred toy intro examples, but not a single example of a full app, with widgets, subwidgets, etc., showing data flow through the whole application. E.g. suppose you have an observable with some state. You need to pass it to a widget. That widget has subwidgets that need portions of that state. Do you do a subscribe? sub = state.subscribe(widget) Now 'widget' is outside the monad. The subwidgets can't use observable methods on state. You have the same problem if you run the widget as a side effect. state.doAction(widget) So do you pass the

For a long time now I am trying to wrap my head around RX. And, to be true, I am never sure if I got it - or not. Today, I found an explanation on http://reactive-extensions.github.com/RxJS/ which - in my opinion - is horrible. It says: RxJS is to events as promises are to async. Great. This is a sentence so full of complexity that if you do not have the slightest idea of what RX is about, after that sentence you are quite as dumb as before. And this is basically my problem: All the explanations in the usual places you find about RX make (at least me) feel dumb. They explain RX as a highly

I wonder which is the best approach to trigger an event after several (unordered) ajax calls finished. To make it a bit clearer, I would like to call a Method doSomethingGreat() which triggers several ajax calls, the order in which those succeed ins unnecessary. I just want to trigger an event 'SomethingGreatFinished' when all of those calls succeeded. I also don't want to chain these calls, because that would be lacking performance and would be totally against the idea of asynchronous programming. I wonder if a.) there is a common pattern for that, b.) this can be done with the Reactive

I'd like to use RxJS to "bridge" async world of events with sync world. Specifically I want to create an function which returns an array of events collected during some time interval. I can create Observable which does what I want var source = Rx.Observable .interval(100 /* ms */) .bufferWithTime(1000).take(1) I can print correct values just fine var subscription = source.subscribe( function (x) { console.log('Next: ' + JSON.stringify(x)); }, function () { console.log('Completed'); }); This prints [0,1,2,3,4,5,6,7,8] Completed But want I want is to assign this array to variable. Conceptually I

I have two behaviour subject streams what I'm trying to forkJoin with no luck. As I imagined it gives back the two last values of it. Is this possible to implement it somehow? It is not called after the subject. let stream1 = new BehaviorSubject(2); let stream2 = new BehaviorSubject('two'); Observable.forkJoin(stream1, stream2) .subscribe(r => { console.log(r); }); Note what forkJoin() actually does from its documentation: Wait for Observables to complete and then combine last values they emitted. This means that forkJoin() emits a value when all input Observable are complete. When using

I'm using AngularJS 2 Beta 0 and I'm trying to create an RxJS Observable from an event on a window object. I believe I know the formula for capturing the event as an Observable in my service: var observ = Observable.fromEvent(this.windowHandle, 'hashchange'); The problem is that every time I try run this code, I get an error stating that 'fromEvent' is not a function. Uncaught EXCEPTION: Error during evaluation of "click" ORIGINAL EXCEPTION: TypeError: Observable_1.Observable.fromEvent is not a function This seems to imply to me that I'm not handling my import correctly now that RxJS is not