Multi-thread programming in Angular

In Angular you can create an array of observables and subscribe to them using ForkJoin which will wait until all the threads are complete:

let obsArray: Observable<Object1 | Object2>[] = [];
obsArray.push(myObject1);
obsArray.push(myObject2);
Observable.forkJoin(obsArray).subscribe(
    responses => {console.log('both completed successfully!');},
    error => {console.log('error');}
);

Video https://youtu.be/gPlAq-FR5VE

Reactive-Extensions / RxJS: forkjoin