reactive-programming

问题 In order to pass value between angular2 different components, I use different services injected into different components. In my PagesService component, I define a behavior subject and want to pass a value. import { Injectable } from '@angular/core'; import { ApiService } from '../../apiService/api.service'; import { Playlists } from '../shared/playlists.model'; import { Subject, BehaviorSubject } from 'rxjs/Rx'; @Injectable() export class PagesService { private currentPlaylists: Subject

问题 I'm using the spock framework and need to return a mocked Mono from a Mono.create(..) I've tried: GroovyMock(Mono) as well as GroovyMock(Mono, global:true) 1 * Mono.create(_ as MonoSink) >> Mono.just(returnedValue) But I get the message that there were too few assertions for the above code. Here is the actual Mono.create code Mono.create{ sink -> myAPISoap.getStuffAsync( username, password, info, { outputFuture -> try { sink.success(outputFuture.get()) } catch(Exception e){ sink.error(e) } }

问题 I'm using ReactiveUI and I'm trying to change all my ViewModels' rules with WhenActivated but I'm unable understand how to have it working well in conjunction with output properties. The pattern is something like this.WhenActivated( registerDisposable => { registerDisposable(this.Bind(…)); registerDisposable(this.WhenAny(…)); registerDisposable(this.WhenAnyValue(…)); }); and the output properties looks like protected readonly ObservableAsPropertyHelper<object> _Obj; public object Obj => _Obj

问题 Question Despite both sharing the same reactive data frame, why does the bar plot not match the data shown in the table in my shiny app? Overview I'm currently arranging the iris data frame in df - a reactive expression that uses the input of a radio button and arranges the data based on base::switch(). Afterwards, df is displayed in two forms: a bar plot and a table. The trouble is that the bar plot doesn't respond to the radio button, while the table does. My desired output would be for the

问题 I've read several posts on this but nothing that would really answer my question in an up-to-date way (i.e. UI.insert is depreciated). So what's the best way of inserting/rendering a Template into a Surface reactively, meaning, not only one data object (renderWithData), but whatever is defined in the Template.helpers should also be updated reactively. Code tried so far: var div = document.createElement('div'); //UI.insert(UI.render(function() { return Template.hello; }), div); surface = new

问题 Still figuring out a proper use of different Rx* operators and stumbled upon the following problem: I have a collection of models of the following type: class Model { final long timestamp; final Object data; public Model(long timestamp, Object data) { this.timestamp = timestamp; this.data = data; } } This collection is sorted in ascending order (sorted by timestamp). My goal - is to group them by "sequences". "Sequence" - is sequence of elements where each element is really close to its

问题 Messing around with a bacon.js. I'd like to keep a running total of values in a group of text inputs. The example on the github site uses .scan and an adder function, which works fine for the example because it's using -1 and +1 in the stream. But I'd like values to be removed from the stream if they are edited, so the .scan solution won't really work for me or I'm not doing it right. Markup: <ul style="repeat-direction: vertical; list-style-type: none;"> <li><input data-group="0"></li> <li>

问题 I have a problem with my RxJava callchain. The toList is not working properly. I would guess that it is that the toList() needs something to complete. That is why it is stuck. But i do not know how to solve this issue The code mModel.getLocations() .flatMapIterable(new Function<List<Location>, List<Location>>(){ @Override public List<Location> apply(final List<Location> locations) throws Exception { return locations; } }) .filter(new Predicate<Location>() { @Override public boolean test(final

问题 Following up on How to structure rxjs code, concerning how to structure a widget with subwidget when using rx, how would you structure rx code where the subwidgets are data-driven? As a toy problem, suppose you have an external source (e.g. web service) streaming a list of stocks to watch, with value, high, low, etc. So you have an Observable stream like (time goes down): [{id: 'csco', value: 12, high: 20, low: 10}] [{id: 'csco', value: 12, high: 20, low: 8}, {id: 'aapl', value: 29, high: 30,

问题 I am stuck on how to convert/transform the following observable type to my target type: I have observable of type: Observable<Observable<List<FooBar>>> I want to convert it to: Observable<List<FooBar>> So when I subscribe on it, it emits List<FooBar> not Observable<List<FooBar>> I tried with map, flatMap... I could not find a solution. However, I found a strange looking operator called blockingFirst which my IDE indicates that it returns Observable<List<FooBar>> when applied to Observable