Add days after date is selected excluding weekends and holidays

Question

I have two text fields. In the first textfield I have added a calendar using jQueryUI Datepicker. When the user selects the date from the datepicker, it should automatically

Answer 1

var numAdd = 30
var dataAvui = new Date()
for (var i=0;i<=numAdd;i++)
{ 
    var dataTemp = dataAvui
    console.dir(dataTemp.toString())
    dataTemp.setDate(dataTemp.getDate() + 1)
    if(dataTemp.getDay() == 6){
        dataTemp.setDate(dataTemp.getDate() + 2)
    }else if(dataTemp.getDay() == 0){
        dataTemp.setDate(dataTemp.getDate() + 1)
    }

    dataAvui = dataTemp
}

Answer 2

Solved it! This answer here helped tremendously.

Code:

function AddBusinessDays(weekDaysToAdd) {
      var curdate = new Date();
      var realDaysToAdd = 0;
      while (weekDaysToAdd > 0){
        curdate.setDate(curdate.getDate()+1);
        realDaysToAdd++;
        //check if current day is business day
        if (noWeekendsOrHolidays(curdate)[0]) {
          weekDaysToAdd--;
        }
      }
      return realDaysToAdd;

    }


var date_billed = $('#datebilled').datepicker('getDate');
var date_overdue = new Date();
var weekDays = AddBusinessDays(30);
date_overdue.setDate(date_billed.getDate() + weekDays);
date_overdue = $.datepicker.formatDate('mm/dd/yy', date_overdue);
$('#datepd').val(date_overdue).prop('readonly', true);

Answer 3

When dealing with holidays, there's really only one option: one day at a time. You should iterate, one day at a time, and add/substract as needed if a day "counts". In pseudo code:

date add(date startDate, int daysToAdd) {
    int i:=0
    endDate:=startDate
    while (i<daysToAdd) {
        endDate++
        if (    NOT(isWeekend(endDate))
            AND NOT(isHoliday(endDate)) {
            i++
        }
    }
    return endDate
}

isWeekend() is trivial to implement; isHoliday(), on the other hand, is a very tough nut to crack. The easiest way to deal with it is to have a table of known holidays and check if the date passed as parameter coincides with any of those. In my opinion, it's better to have a rule-based method that can compute whether a given date is a holiday or not.

Disclaimer: I copied and pasted this from a previous answer of mine to the same question. See How to ignore weekends and holidays in boost date time?