Function getWeekday

codebase/sources/dhtmlxscheduler.es.js:15821–15823

(date)

  return month === 1 && isLeapYear(date.getUTCFullYear()) ? 29 : MONTH_DAYS[month];
};
var getWeekday = function(date) {
  return PY_WEEKDAYS[date.getUTCDay()];
};
var monthRange = function(year, month) {
  var date = datetime(year, month + 1, 1);
  return [getWeekday(date), getMonthDays(date)];