fullcalendar rerender new calendar

function rerender_calendar(id, url)
{
    // clear all event
    $('#' + id).fullCalendar('removeEvents');

    // render new event
    $('#' + id).fullCalendar('addEventSource', url);
}

References :
javascript - rerendering events in fullCalendar after Ajax database update - Stack Overflow
removeEvents - Documentation | FullCalendar