rxjs

I keep reading rxjs documentation but getting lost in all the operators.. this is what i got so far let obs = Observable.from([1, 3, 5]) so what i need this to do is take() some set amount from the array. use the results in a post request, when that comes out successful then i need to restart the process. I want to collect all the results, and keep progress as the process is going (for a progress bar) I don't need the code for all of that. what i really need to know is how to use rxjs to split this array up.. send part of it, and restart the process until theres nothing left to send. FINAL

Hi I am new to angular 2+, I am trying to share data between two components but the second component is not retrieving the data from the service, it gets an empty object. Service - using rxjs BehaviorSubject to keep the object import { BehaviorSubject } from 'rxjs/BehaviorSubject'; import { Observable } from 'rxjs/Observable'; @Injectable() export class PostsService { response: any = {}; private messageResponse = new BehaviorSubject(this.response); currentResponse = this.messageResponse.asObservable(); constructor(private http: Http) { } // Get all posts from the API getAllPosts() { return

I am new to Angular 2 and RXJS. I have a custom header component with 2 triggers (buttons) which should activate 2 different navigation directives in different parts of the application. I have created a service which registers the 2 different navigation directives and the header component subscribes to this. I wanted to know whats the best way to link the buttons in the header to call the open() and close() functions in each of the directives depending on the trigger that is clicked. NOTE: Please note that I cannot use ViewChild or ContentChild because the navigation can be anywhere on the

I'm working on an exercise about RxJS. And there's something very strange happening: typoStream.subscribe(x => console.log('wont get executed')); wordCompletedStream.subscribe(nextStream); typoStream.subscribe(x => console.log('will get executed')); When the application runs the first console.log won't get printed and the second one will. Regardless of what the streams are and how they interact - this should never happen, right? Why is it important when I subscribe to an observable - shouldn't it emit the event to every subscriber anyways? If you want to try it: http://embed.plnkr.co

Here's my code: this._http.post(this._url_get + extension, '', { headers: headers }) .map(res => res['_body']) .retryWhen(errors => {return responseErrorProcess(errors)}) now I need to catch exceptions and pass them to my responseErrorProcess() which returns true if it needs to retry I could not figure out how to retrieve the exceptions from errors , this is how it looks: Subject_isScalar: falseclosed: falsehasError: falseisStopped: falseobservers: Array[0]thrownError: null__proto__: Observable` It doesn't seem to contain errors about the exceptions that occurs, plus I couldn't figure out what

I am trying to retrieve json file from the server using http.get and subscribe to the observable from a component. However, it's returning an error, not the data. Can you please tell me where I'm going wrong: import { Injectable } from '@angular/core'; import { Http } from '@angular/http'; import { Observable } from 'rxjs'; @Injectable() export class MoviesService { constructor(private http: Http) { } getMovies() : Observable<any> { let url = API_URL; return this.http.get(url); } } and here's the component: import { Component } from '@angular/core'; import { MoviesService } from './movies