angular2-observables

How would i return success from Save() method. public SaveItem() { if(save()){ // The goal is to use save method like this // Close pop up; } public SaveAndNew() { if(save()){ // The goal is to use save method like this // Create new item; } private save() { let issuccess = false; this.myservice.AddParty(newUserObject) .subscribe(data => { if (data['status'].toString() === '1') { return issuccess = false; } else { return issuccess = true; } }, (er) => { return issuccess = false; }); } If i have save(): boolean it will throw error that Must return a value if return issuccess outside the

Before every request I want to be sure that there is a user profile available. I use a canActivateChild guard to do this. According to the documentation of angular2 it is possible to return an observable: https://angular.io/api/router/CanActivateChild app.routes.ts export const routes: Routes = [ { path: '', canActivateChild: [ProfileGuard], children: [ { path: 'home', component: HomeComponent, canActivate: [AuthGuard] }, { path: 'login', component: LoginComponent, canActivate: [GuestGuard] }, } ]; The canActivatedChild is executed before the child route canActivate profile.guard.ts: export

I have a component in angular 2 which responds to changes in the route parameters (the component doesn't reload from scratch because we're not moving out of the main route. Here's the component code: export class MyComponent{ ngOnInit() { this._routeInfo.params.forEach((params: Params) => { if (params['area']){ this._pageToShow =params['area']; } }); } } This works a treat and _pageToShow is set appropriate on navigation. I'm trying to test the behaviour on a change to the route (so a second trigger of the observable but it's refusing to work for me.) Here's my attempt: it('sets PageToShow to

Tried to make a simple timer and need to break it on some if condition. But always got an error EXCEPTION: timer.unsubscribe is not a function . What am I doing wrong? let timer:any = Observable.timer(0,1000); timer.subscribe(data => { console.log(this.itemsRatedList); if(data == 5) timer.unsubscribe(); }); It should be: let timer:any = Observable.timer(0,1000); let subscription = timer.subscribe(data => { console.log(this.itemsRatedList); if(data == 5) subscription.unsubscribe(); }); You can't unsubscribe an Observable , only a Subscription . Plunker example A more clear and simple example is

I have done this multiple times in my App. It's simple, it should work... But this time it doesn't. My issue: I am calling a method in a service from a Component A, my Component B is subscribed but doesn't react nor receive anything. subscribe() is not triggering! navigation-elements.service.ts @Injectable() export class NavigationElementsService { updateIBOsNavigation$: Observable<any>; private updateIBOsNavigationSubject = new Subject<any>(); constructor() { this.updateIBOsNavigation$ = this.updateIBOsNavigationSubject.asObservable(); } updateIBOsNavigation(navigationData) { log.d(

I'm currently working on an Angular 2 project with AngularFire2 and I'm trying to convert a FirebaseListObservable to a Promise. I know that it doesn't make much sense since Observables are more useful but this function will be part of another function where multiple promises are chained. And I'm not familiar with how to subscribe to Observables within a chain of promises... The function gets executed in the service, however it seems to not return anything. Basically, what I want to do is check in a Firebase list if an object with a certain name already exists and return either true or false.