在航班搜索引擎中比较两个日期时出现问题

Question

我想写一个条件，某人选择的航班日期等于/大于今天：

服务如下：

import { Injectable } from '@angular/core';

@Injectable({
  providedIn: 'root',
})
export class FlightSelectionService {
  startingCity: string = 'Warsaw';
  selectedEndingCity: string = 'Paris';
  startingDate: Date = new Date();
  endingDate: Date = this.startingDate;
  currentDate: Date = new Date();
  adultsNumber: number = 0;
  childrenNumber: number = 0;
  validatePassengers(): boolean {
    const totalPassengers = this.adultsNumber + this.childrenNumber;
    return totalPassengers > 0;
  }

  validateDates(): boolean {
    
    console.log(this.startingDate + ' ' + this.startingDate.getTime());
    console.log(this.currentDate + ' ' + this.currentDate.getTime());
    console.log(this.startingDate.getTime() === this.currentDate.getTime());

    const isStartingDateValid =
      this.startingDate.getTime() >= this.currentDate.getTime();
    const isEndingDateValid = this.endingDate > this.startingDate;
    const areDatesDifferent =
      this.startingDate.getTime() !== this.endingDate.getTime();

    return isStartingDateValid && isEndingDateValid && areDatesDifferent;
  }
  constructor() {}
}

以及 valide Date 函数中的验证代码：

  console.log(this.startingDate + ' ' + this.startingDate.getTime());
    console.log(this.currentDate + ' ' + this.currentDate.getTime());
    console.log(this.startingDate.getTime() === this.currentDate.getTime());

    const isStartingDateValid =
      this.startingDate.getTime() >= this.currentDate.getTime();

它不起作用，我尝试过：

const startingDateInUTC = new Date(this.startingDate.getUTCFullYear(), this.startingDate.getUTCMonth(), this.startingDate.getUTCDate());
const currentDateInUTC = new Date(this.currentDate.getUTCFullYear(), this.currentDate.getUTCMonth(), this.currentDate.getUTCDate());

const isStartingDateValid = startingDateInUTC.getTime() >= currentDateInUTC.getTime();

如何正确实现这个日期比较？起始日期必须是当前日期或更高，因此我可以预订当天或未来的航班，而不是过去的航班。

编辑：

  console.log(this.startingDate + ' ' + this.startingDate.getTime());
    console.log(this.currentDate + ' ' + this.currentDate.getTime());

是：

Wed Apr 17 2024 12:57:12 GMT+0200 (Central European Summer Time) 1713351432419 flight-selection.service.ts:20:12
Wed Apr 17 2024 12:57:12 GMT+0200 (Central European Summer Time) 1713351432419

Answer 1

对于与日期相关的功能，moment.js 非常棒。您可以使用 isSameOrAfter。请阅读文档这里