import { Injectable } from '@angular/core' ; import { of as observableOf , Observable } from 'rxjs' ; import { StatsBarData } from '../data/stats-bar' ; @ Injectable ( ) export class StatsBarService extends StatsBarData { private statsBarData : number [ ] = [ 300 , 520 , 435 , 530 , 730 , 620 , 660 , 860 , ] ; getStatsBarData ( ) { return observableOf ( this . statsBarData ) ; } }