jQuery Datepicker set Unavailable, Available, Weekly date options

site__function__jquery_set_unavailable_available_and_weekly_date_options.js

<script>
  
// set unavailable dates
var unavailableDates = ['26-11-2020','24-12-2020','25-12-2020'];
var availableDates = ['9-9-2020','25-11-2020'];

// check unavailable dates and verify if the weekday is approved
function unavailable(date) {

  // beforeShowDay, get date
  dmy = date.getDate() + "-" + (date.getMonth()+1) + "-" + date.getFullYear();

  // inArray returns the index of the element, or -1, if element not found
  // if today is found in unavailableDates, return false
  if (jQuery.inArray(dmy, unavailableDates) != -1) {

    return [false];

  // if today is found in todays availableDates, return true
  } else if (jQuery.inArray(dmy, availableDates) != -1) {

      return [true];	

  } else {

    // if day is Sunday, Saturday, Wednesday, diable the day
    if( date.getDay() == 0 || date.getDay() == 3 || date.getDay() == 6 ) {
      return [false];
    } else{
      return [true];
    }	
    
  }
}

function partial_day_cutoff(date) {
 
  // default to no orders in the same day
  var minDate = 1;

  // get the current datestamp
  var date = new Date();

  // get the current timestamp (military)
  var current_hour = date.getHours();

  // if the current timestamp is greater than 12PM, change the minDate to no orders within this and the next day
  if( current_hour > 12 ) {
      minDate = 2;
  }
  return minDate;

}


jQuery(document).ready(function($){

  var minDate = partial_day_cutoff();
  
  $("#thedate").datepicker({

	minDate : minDate,
	// maxDate : 14,
	beforeShowDay: unavailable,

  });	

});

</script>