我正在尝试遵循Angular2 Firebase应用程序教程,但我被困在此错误上。最新版本中似乎不再存在列表方法,我无法获得任何线索来修复此错误。
firebase.service.ts:
import { Injectable } from '@angular/core';
import { AngularFireDatabase, FirebaseListObservable } from "angularfire2/database-deprecated";
@Injectable()
export class FirebaseService {
listings: FirebaseListObservable<any[]>;
constructor(private af:AngularFireDatabase) { }
getListings(){
this.listings=this.af.database.list('/listings') as FirebaseListObservable<Listing[]>
return this.listings;
}
}
interface Listing{
//declarations
}
只需将其用作,
getListings(){
this.listings=this.af.list('/listings') as FirebaseListObservable<Listing[]>
return this.listings;
}