useNodesData()

此钩子允许你订阅特定节点 data 对象的更改。

¥This hook lets you subscribe to changes of a specific nodes data object.


import { useNodesData } from '@xyflow/react';
 
export default function () {
  const nodeData = useNodesData('nodeId-1');
 
  const nodesData = useNodesData(['nodeId-1', 'nodeId-2']);
}

签名

¥Signature

Name	Type
#Params
#`nodeIds`	`string \| string[]` A single node ID or an array of node IDs whose `data` objects you want to observe
#Returns
#`id`	`string`
#`type`	`string`
#`data`	`any \| any[]`

Typescript

此钩子接受自定义节点类型的泛型类型参数。有关更多信息，请参阅此我们的 Typescript 指南中的部分。

¥This hook accepts a generic type argument of custom node types. See this section in our Typescript guide for more information.


const nodesData = useNodesData<NodesType>(['nodeId-1', 'nodeId-2']);