The links.update() method updates and redraws the specified link in the JavaScript Scheduler component.
DayPilot.Scheduler.link.update(link);link (DayPilot.Link) - the link to be updated
You can get the link object using the links.find() method.
Change the text of an event and redraw the event.
const link = scheduler.links.find(1);
link.data.color = "blue";
scheduler.links.update(link);