fullCalendar - Event title and detail

Based on fullcalendar documentation

V5

If you want to set the title use eventDidMount instead of eventRender

eventDidMount:function(info){
   info.el.title="---- YOUR TEXT----"
}

See This (Eureka's Answer)

eventRender: function(event, element)
{ 
    element.find('.fc-event-title').append("<br/>" + event.description); 
}