拖放时如何在FullCalendar中为元素设置id？

document.addEventListener('DOMContentLoaded', function() {
  var calendarEl = document.getElementById('calendar');

  var calendar = new FullCalendar.Calendar(calendarEl, {
    plugins: ['interaction', 'dayGrid'],
    defaultView: 'dayGridMonth',
    editable: true,
    eventReceive: function(info) {
      var eventId = info.event.id; // 获取事件的id
      var elementId = info.draggedEl.id; // 获取拖放元素的id
      console.log('Event ID: ' + eventId);
      console.log('Element ID: ' + elementId);
    }
  });

  calendar.render();
});