BehaviorSubject 在 Angular 中制作数据之间的时间表(或计时器)

我正在try 更新我的页面的日程安排

就像"订阅"和"取消订阅"一样，用

在10分钟左右的时间内进行页面更新，同时不在数据库上创建标题

import { Component, OnDestroy, OnInit } from '@angular/core';
import { Subscription } from 'rxjs';
import { MaintenanceServicesService } from './MaintinanceService/maintenance-services.service';



@Component({
  selector: 'app-maintenance',
  templateUrl: './maintenance.component.html',
  styleUrls: ['./maintenance.component.scss']
})
export class MaintenanceComponent implements OnInit, OnDestroy {

  pageCards: any[] = []
  subscripe?: Subscription


  constructor(private _MaintenanceServicesService: MaintenanceServicesService) {
  }

  ngOnInit(): void {
    this.subscripe = this._MaintenanceServicesService.pageCards.subscribe({
      next: () => {
        this.GetPageCards()
      }
    });
  }

  ngOnDestroy(): void {
    if (this.subscripe) {
      this.subscripe.unsubscribe()
    }
  }

  GetPageCards() {
    this._MaintenanceServicesService.GetServicesPageCards()
    this.pageCards = this._MaintenanceServicesService.pageCards.getValue()
  }

}