Question

I am trying to compare a date in the jqueryui datepicker.beforeShowDay() to establish whether a day is selectable or not. However it doesn’t seem to work. The code is:

function (d) {
    if ((d.getDay() == 0) || (d == $.datepicker.parseDate('yy/mm/dd', '2012/12/25'))) {
      return [false, ""];
    }
    else {
      return [true, "2"]
    };
}

the first test (getDay) works fine but the second does not:

(d == $.datepicker.parseDate('yy/mm/dd', '2012/12/25')): false

even though

$.datepicker.parseDate('dd/mm/yy', '25/12/2012'): Tue Dec 25 2012 00:00:00 GMT+0000 (GMT Standard Time)

and

d: Tue Dec 25 2012 00:00:00 GMT+0000 (GMT Standard Time)

which look the same to me.

Any ideas?

Answer 1

Use the formatDate method to get it to the string format first then do a comparison of the same type:

function (d) {
    var datestrInNewFormat = $.datepicker.formatDate("yy/mm/dd", d);
    if ((d.getDay() == 0) || (datestrInNewFormat == '2012/12/25')) {
      return [false, ""];
    }
    else {
      return [true, "2"]
    }
}

DEMO