How to access a variable from another component in Angular 2?

Question

Angular

Good afternoon. There are two components:

//first.component.ts
export FirstComponent implements OnInit {
    user:User;

    ngOnInit(): void {
        this.user = { id: 1 };
    }
}

//second.component.ts
export SecondComponent {
    user:User;
}

Actually the essence of the question, how can you access the user variable from FirstController in SecondController?
Thanks

Answer 1

It is described in detail here

Answer 2

for example, use the redux architecture blog.angular-university.io/angular-2-application-a... or
- injectors (smoke the angular dock);
- services (we also smoke the dock);
- Input (we also smoke the dock);