Posted on May 6, 2020

Promise.all alternative in RxJS

I'm a bit late to the party but I finally took out the time to learn RxJS and already in love with it ❤️.

What I did

I was wondering, there has to be something like Promise.all in RxJS and here's what I came up with

import { ajax } from 'rxjs/ajax'; import { of } from 'rxjs'; const myObs = of([ ajax('https://jsonplaceholder.typicode.com/users/1'), ajax('https://jsonplaceholder.typicode.com/posts/1') ]); // now myObs is of the type Observable<Observable<AjaxResponse>[]> // for some reason I don't feel too good about this myObs.subscribe(function(value) { /** * here I get an array of 2 observables which I have to * loop over and subscribe to each of the observables */ console.log('emitted value:', value); })