jumpPrev
Returns a new LocalDate instance representing the previous date based on the CalendarConfig passed.
If CalendarConfig.style is set to CalendarStyle.MONTH, the function returns the first day of the previous month. If CalendarConfig.style is set to CalendarStyle.WEEK, the function returns the first day (Monday) of the previous week.
Return
A new LocalDate instance representing the previous date based on the CalendarConfig.
Parameters
config
The CalendarConfig to determine the jump step.