Fullcalendar - limit selectable to a single day

Question

By default if you enable the 'selectable' attribute it will allow you to click and drag and select several days. I would like to only allow the user to select a single day, not drag over multiple. Is there a way to have 'selectable' enabled, but disable the dragging feature that comes along with it?

Answer 1

This configuration setting worked for me on FullCalendar v5:

selectAllow: function(selectionInfo) {
    let startDate = selectionInfo.start;
    let endDate = selectionInfo.end;
    endDate.setSeconds(endDate.getSeconds() - 1);  // allow full day selection
    if (startDate.getDate() === endDate.getDate()) {
        return true;
    } else {
        return false;
    }
}