# Using forkJoin with async pipe

A

#### Andrew Howard

##### Guest
Andrew Howard Asks: Using forkJoin with async pipe
I have 2 arrays (of objects) and I wish to combine them by id.

Array One:

Code:
arrayOne$= of([{id: 1, name: "Andrew"}, {id: 2, name: "Simon"}]) as Observable<any[]>; Array Two: Code: arrayTwo$ = of([{id: 1, age: 22}, {id: 2, age: 56}]) as Observable<any[]>;

So the desired end result will be:

Code:
[{id: 1, name: "Andrew", age: 22}, {id: 2, name: "Simon", age: 56}]

I have to get these results via 2 different apis so using the async pipe and forkJoin are required. However I'm now stuck on how to use forkJoin, do I need to use map to do this?

Stackblitz = Angular Ivy (forked) - StackBlitz

So far I have:

TS

Code:
combinedResults$= forkJoin([ this.arrayOne$,
this.arrayTwo$]) HTML Code: <div *ngIf="(combinedResults$ | async)?.length !== 0">
<p>Here is the combined list items:</p>
<ul>
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