获取一个月中一天的所有出现

Question

我有一个月的第一天和最后一天，当月的长度我正在寻找一个函数，它会给我这个月任何一天的所有外观，我已经看到了一些函数这给出了下一个事件，但我希望能够进入任何一天并看到所有事件..我想这将是某种循环..我正在处理它，因为我们正在谈论但任何帮助都会很棒..

$scope.recurrenceFields.by_year_day=$filter('date')($scope.fields.times.dateStart, 'yyyy');
$scope.recurrenceFields.by_month=$filter('date')($scope.fields.times.dateStart, 'M');
    var correntDay = new Date();
                           var lastDayOfMonth = new Date(correntDay.getFullYear(), correntDay.getMonth()+1, 0);
                           var firstDayOfMonth = new Date(correntDay.getFullYear(), correntDay.getMonth(), 1);
                           function daysInMonth(month,year) {
                                return new Date($filter('date')($scope.fields.times.dateStart, 'yyyy'), $scope.recurrenceFields.by_month, 0).getDate();
                            }

Answer 1

您可以使用此服务：

angular.module('myApp.services')
    .factory('dateUtils', function () {
        return {
            getIntervals: function (startTimestamp, endTimestamp, interval) {
                if(!angular.isNumber(startTimestamp) || !angular.isNumber(endTimestamp) || !angular.isNumber(interval) || startTimestamp===0 || endTimestamp===0) {
                    return [];
                }
                var intervals = [];
                var currentPeriod = startTimestamp;
                while (currentPeriod <= endTimestamp) {
                    intervals.push(currentPeriod);
                    var currentPeriodDate = new Date(currentPeriod);
                    currentPeriodDate.setDate(currentPeriodDate.getDate() + interval);
                    currentPeriod = currentPeriodDate.getTime();
                }
                return intervals;
            }
        };
    });

如果您想要两个日期之间的一整天，只需使用该服务：

dateUtils.getIntervals(startDate, endDate, 1);

Answer 2

不太确定“本月任何一天的所有出现次数”是什么意思，但是下面的函数 returns 一个特定日期的所有出现次数月给定年月日数。

/* @param {number} year - calendar year
 ** @param {number} month - calendar month: 1-Jan, 2-Feb, etc.
 ** @param {number} dayNumber - day number: 0-Sunday, 1-Monday, etc.
 ** @returns {Array} Dates for all days in month of dayNumber
 */
function getAllDaysInMonth(year, month, dayNumber) {
  var d = new Date(year, --month, 1);
  var dates = [];
  var daysToFirst = (dayNumber + 7 - d.getDay()) % 7;
  var firstOf = new Date(d.setDate(d.getDate() + daysToFirst));

  while (firstOf.getMonth() == month) {
    dates.push(new Date(+firstOf));
    firstOf.setDate(firstOf.getDate() + 7);
  }
  return dates;
}

// Return array of all Thursdays in July 2015
console.log(getAllDaysInMonth(2015, 7, 4));
// [Thu 02 Jul 2015,
//  Thu 09 Jul 2015,
//  Thu 16 Jul 2015,
//  Thu 23 Jul 2015,
//  Thu 30 Jul 2015]

// Get all Tuesdays in February 2000
console.log(getAllDaysInMonth(2000, 2, 2));
// [Tue 01 Feb 2000,
//  Tue 08 Feb 2000,
//  Tue 15 Feb 2000,
//  Tue 22 Feb 2000,
//  Tue 29 Feb 2000]

// Get all Sundays in December 2015
console.log(getAllDaysInMonth(2015, 12, 0));
// [Sun 06 Dec 2015,
//  Sun 13 Dec 2015,
//  Sun 20 Dec 2015,
//  Sun 27 Dec 2015]

获取一个月中一天的所有出现

Getting all occurrences of a day in month

javascript

underscore.js

angularjs