Function notify

src/state/registry/create-registry.ts:44–48

(event: RegistryEvent)

  }

  function notify(event: RegistryEvent) {
    if (subscribers.length) {
      subscribers.forEach((cb) => cb(event));
    }
  }

  function findDraggableById(id: DraggableId): DraggableEntry | null {
    return entries.draggables[id] || null;