Exclude certain days-of-the-week from being displayed.
The value is an array of day-of-week indices to hide. Each index is zero-base (Sunday=
0) and ranges from
hiddenDays: [ 2, 4 ] // hide Tuesdays and Thursdays hiddenDays: [ 1, 3, 5 ] // hide Mondays, Wednesdays, and Fridays
By default, no days are hidden, unless weekends is set to