'Fullcalendar Week Title Format

Is it possible to get fullcalendar to show week titles as a single letter? So instead of the default:

Mon Tue Wed Thu Fri Sat

how can I display:

S M T W T F S

I've tried:

$('#calendar').fullCalendar({
   header: {
   right: '',
   center: 'prev, title, next',
   left: ''
  },
  columnFormat: {
    month: 'd' //also tried 'D' but a number displayed instead
  }
)}


Solution 1:[1]

From version 2.2.4,

You have to modify like this.

$('#calendar').fullCalendar({
    ...
    ...
    ...,
    views: {
        week: { // name of view
            columnFormat: 'dd'
        }
    }
});

Solution 2:[2]

If you are using dayGridMonth, inside the option apply ,

dayHeaderFormat: {
    weekday: 'narrow'
},

Solution 3:[3]

You can use slotLabelFormat:

slotLabelFormat: [
    { weekday: 'narrow' },
]

All possible formats are in documentation: https://fullcalendar.io/docs/v4/date-formatting

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Syed Ibrahim
Solution 2 Adrika Gupta
Solution 3 Nacho