monthStartFormat 6.1.0
When a dayGrid view is programmed to span across months, the text format for the first cell of each month.
format string, default: { month: 'long', day: 'numeric' }
The default format will yield something like “January 1”.
When a dayGrid view is programmed to span across months, the text format for the first cell of each month.
format string, default: { month: 'long', day: 'numeric' }
The default format will yield something like “January 1”.