如何在angular引导日期选择器中阻止未来的日期和时间

<input type="text" [(ngModel)]="selectedDate" [ngbDatepicker]="datepicker">
<ngb-datepicker #datepicker></ngb-datepicker>

import { NgbDateStruct } from '@ng-bootstrap/ng-bootstrap';

export class YourComponent {
  selectedDate: NgbDateStruct;

  constructor() {
    this.setMaxDate();
  }

  setMaxDate() {
    const currentDate = new Date();
    const maxDate = { year: currentDate.getFullYear(), month: currentDate.getMonth() + 1, day: currentDate.getDate() };
    this.selectedDate = maxDate;
  }
}

<input type="text" [(ngModel)]="selectedTime" [ngbTimepicker]="timepicker">
<ngb-timepicker #timepicker></ngb-timepicker>

import { NgbTimeStruct } from '@ng-bootstrap/ng-bootstrap';

export class YourComponent {
  selectedTime: NgbTimeStruct;

  constructor() {
    this.setMaxTime();
  }

  setMaxTime() {
    const currentDate = new Date();
    const maxTime = { hour: currentDate.getHours(), minute: currentDate.getMinutes(), second: currentDate.getSeconds() };
    this.selectedTime = maxTime;
  }
}