Day-Header Divider Render Hooks
Customize the divider line beneath the day header cells in DayGrid & TimeGrid views.
dayHeaderDividerClass - a ClassName Input for the day-header divider element
Argument
When the above hook is specified as a function in the form function(info), the info is an object with the following properties:
isSticky-truewhen the divider is rendered in a sticky position (e.g. pinned while scrolling)multiMonthColumns- in MultiMonth view, the number of month columns rendered per row.0in other viewsoptions- the calendar options object, useful for reading settings likeallDaySlot