我正在尝试使用 ng-bootstrap datepicker example中的范围选择和全局配置。但 config.mark-disabled 似乎不适用于我的代码：它几乎只是上面链接示例中的代码。我更改了 fromDate 和 toDate 值以查看是否与应禁用的日期存在冲突，但这没有帮助。

我的 .ts 文件：

import { Booking } from '../booking/booking.model';
import { BookingDataService } from '../booking-data.service';
import { Component, OnInit } from '@angular/core';
import {NgbDateStruct, NgbCalendar,NgbDatepickerConfig } from '@ng-bootstrap/ng-bootstrap';
import { AddBookingComponent } from '../add-booking/add-booking.component';
import { EventEmitter } from '@angular/core/src/event_emitter';


const equals = (one: NgbDateStruct, two: NgbDateStruct) =>
one && two && two.year === one.year && two.month === one.month && two.day === one.day;

const before = (one: NgbDateStruct, two: …