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Determines if week numbers should be displayed on the calendar.

Boolean, default: false

If set to true, week numbers will be displayed on the side of each row of days in Month/DayGrid views as well as at the top-left corner of the TimeGrid views. View a simple demo.

By default, FullCalendar will use the current locale’s week number calculation method. To display other types of week numbers, see weekNumberCalculation.