OnBeforeDelete

GitHub上的源代码 

OnBeforeDelete 类型定义了在节点或边被删除之前调用的回调函数。该回调接收一个包含即将被删除的节点和边的对象。

🌐 The OnBeforeDelete type defines the callback function that is called before nodes or edges are deleted. This callback receives an object containing the nodes and edges that are about to be deleted.

type OnBeforeDelete = (params: {
  nodes: Node[];
  edges: Edge[];
}) => Promise<boolean | {
  nodes: Node[];
  edges: Edge[];
})>;