isInValidRange(value = "") {
      if (value === "") {
        return true;
      }
      const calendarDate = this._getCalendarDateFromString(value);
      if (!calendarDate || !this._minDate || !this._maxDate) {
        return false;
      }
      return calendarDate.valueOf() >= this._minDate.valueOf() && calendarDate.valueOf() <= this._maxDate.valueOf();
    }
Checks if a date is between the minimum and maximum date.
@public
@method
@name sap.ui.webc.main.DatePicker#isInValidRange
@param { string } [value=""] A value to be checked
@returns { boolean }