javascript - 如何创建带有日期和日期的全年月份的数组对象？

Question

我想获取一个对象数组，其中包括作为关键日期的月份和作为对象和数组子项的日期，这将是月份的值

我想要这样的东西

 var fullYearCalendar = [
                          January:[{date:'1',day:'tue'},
                                   {date:'2',day:'wed'},
                                   {date:'3',day:'thr'},
                                   and so on...
                                  ],
                          February:[{date:'8',day:'sun'},
                                   {date:'9',day:'mon'},
                                   {date:'10',day:'tue'},
                                   and so on...
                                  ],
                                  and so on...
                        ]

Answer 1

使用 Date 对象可以很容易地做到这一点。您需要牢记的一件事是闰年(包含 366 天):

let fullYearCalendar = {};

// initialize date to Jan 1, 1900
let date = new Date(0, 0, 1);

// day length in milliseconds
let dayLength = 1000 * 60 * 60 * 24;

// year length in days (account for leap years)
let year = date.getFullYear();
let yearLength = ((year % 4) || (!(year % 100) && (year % 400))) ? 365 : 366;

for (let i = 0; i < yearLength; i ++) {
  // determine month
  let month = date.toLocaleDateString('en-US', {month: 'long'});

  // determine weekday
  let weekday = date.toLocaleDateString('en-US', {weekday: 'short'});
  
  // initialize month if it does not exist
  if (!fullYearCalendar[month])
    fullYearCalendar[month] = [];

  // add current day to month
  fullYearCalendar[month].push({
    date: date.getDate(),
    day: weekday.toLowerCase()
  })
    
  // increment date by one day
  date = new Date(date.getTime() + dayLength);
}

console.log(fullYearCalendar);