使用来自可观察数据的角度4单击事件

Question

I have a smart component, with some data being selected from the store with

this.user$ = store.select(fromRoot.getUser) 

A child component emits up to the smart component off the back of a button click. Inside this event handler (in the smart component), I want to use the value the value of

this.user$

My only thought is to pass down

user$ | async

into the dumb and to then emit the user back up with the click event. Is this the best approach?

Answer 1

You can do this too, if you don't wan't to pass the observable with the async pipe:

public user: any;
this.user$.subscribe(user => this.user = user);

Then you can pass this.user, and not the observable.

But your approach is perfect. This is just an alternative.