Function isWeekdayStr

codebase/sources/dhtmlxscheduler.es.js:15709–15711

(value)

  return typeof value === "number";
};
var isWeekdayStr = function(value) {
  return typeof value === "string" && ALL_WEEKDAYS.includes(value);
};
var isArray = Array.isArray;
var range = function(start, end) {
  if (end === void 0) {