jquery UI datepicker - disabling date ranges
问题 I'm struggling to get something working - I'm getting a 'Uncaught TypeError: Cannot read property '0' of undefined' error with the below and I can't figure out why! I'm trying to use the jQuery UI datepicker on a site for a holiday cottage to indicate availability and season (low, high etc). I have a function as a datePicker event to check if there's a booking for a date, and if not, I then go out to check which season we're in (In non-peak season bookings can be made on a Monday or Friday.