Now, it's time to incorporate our user component into our main layout. For this, we're going to modify our root application component, which is acting as our outermost container component.
Let's open the component class of our app component located in src/app/app.component.ts and apply the following changes:
…import {map} from 'rxjs/operators';import {UserService} from './user/user.service';import {Project, Task, User} from './model';…export class AppComponent { openTasksCount: Observable<number>; user: Observable<User>; projects: Observable<Project[]>; selectedProject: Observable<Project>; constructor(taskListService: TaskService, userService: UserService, private projectService: ProjectService) { this.openTasksCount ...