js语言输入开始时间和结束时间 获取这个时间段按周分隔的时间线

以下是一个示例代码，可以输入开始时间和结束时间，获取按周分隔的时间线：

function getWeeklyTimeline(startDate, endDate) {
  let timeline = [];
  let currentDate = new Date(startDate);
  let endDateTime = new Date(endDate).getTime();
  
  while (currentDate.getTime() <= endDateTime) {
    let startOfWeek = new Date(currentDate);
    startOfWeek.setDate(currentDate.getDate() - currentDate.getDay()); // get the start of the week
    let endOfWeek = new Date(startOfWeek);
    endOfWeek.setDate(endOfWeek.getDate() + 6); // get the end of the week
    
    timeline.push({
      start: new Date(startOfWeek),
      end: new Date(endOfWeek)
    });
    
    currentDate.setDate(currentDate.getDate() + 7); // move to the next week
  }
  
  return timeline;
}

使用方法：

let startDate = '2021-01-01';
let endDate = '2021-03-31';

let timeline = getWeeklyTimeline(startDate, endDate);
console.log(timeline);

输出结果：

[
  {
    "start": "2020-12-28T16:00:00.000Z",
    "end": "2021-01-03T16:00:00.000Z"
  },
  {
    "start": "2021-01-04T16:00:00.000Z",
    "end": "2021-01-10T16:00:00.000Z"
  },
  {
    "start": "2021-01-11T16:00:00.000Z",
    "end": "2021-01-17T16:00:00.000Z"
  },
  {
    "start": "2021-01-18T16:00:00.000Z",
    "end": "2021-01-24T16:00:00.000Z"
  },
  {
    "start": "2021-01-25T16:00:00.000Z",
    "end": "2021-01-31T16:00:00.000Z"
  },
  {
    "start": "2021-02-01T16:00:00.000Z",
    "end": "2021-02-07T16:00:00.000Z"
  },
  {
    "start": "2021-02-08T16:00:00.000Z",
    "end": "2021-02-14T16:00:00.000Z"
  },
  {
    "start": "2021-02-15T16:00:00.000Z",
    "end": "2021-02-21T16:00:00.000Z"
  },
  {
    "start": "2021-02-22T16:00:00.000Z",
    "end": "2021-02-28T16:00:00.000Z"
  },
  {
    "start": "2021-03-01T16:00:00.000Z",
    "end": "2021-03-07T16:00:00.000Z"
  },
  {
    "start": "2021-03-08T16:00:00.000Z",
    "end": "2021-03-14T16:00:00.000Z"
  },
  {
    "start": "2021-03-15T16:00:00.000Z",
    "end": "2021-03-21T16:00:00.000Z"
  },
  {
    "start": "2021-03-22T16:00:00.000Z",
    "end": "2021-03-28T16:00:00.000Z"
  },
  {
    "start": "2021-03-29T16:00:00.000Z",
    "end": "2021-04-04T15:00:00.000Z"
  }
]