fullcalendar next month only 2 months code example

Example: fullcalendar display 12 months without dates

import { Calendar } from '@fullcalendar/core';
import dayGridPlugin from '@fullcalendar/daygrid';
...
let calendar = new Calendar(calendarEl, {
  plugins: [ dayGridPlugin ],
  initialView: 'monthGridmonth'
});
...