Tooltip in fullcalendar not working

Question

everyone! I'm trying to show tooltip over events in fullcalendar. But it's not working and show in console this message

Uncaught SyntaxError: Unexpected token (

What can be a problem? This is my js-function code:

$('#calendar').fullCalendar(function() {
    eventAfterRender: function(event, element) {
        $(element).tooltip({
            title: event.title,
            container: "body"
        });
    }
});

Answer 1

In FullCalendar 4, use eventRender function:

eventRender: function (info) {
  $(info.el).tooltip({ title: info.event.title });     
}