Function: mapTree()

function mapTree<T, R>(
   trees, 
   mapper, 
   options?): TreeNode<R>[];

Maps over a tree structure, transforming each node while preserving the tree hierarchy. 遍历树结构，转换每个节点同时保持树的层次结构。

Type Parameters

Type Parameter	Description
T extends { [key: string]: any; }	The type of the original tree nodes / 原始树节点的类型
R extends { [key: string]: any; }	The type of the transformed tree nodes / 转换后树节点的类型

Parameters

Parameter	Type	Description
trees	TreeNode<T>[]	The tree structure to map over / 要遍历的树结构
mapper	(node, level, index) => R	Function to transform each node / 转换每个节点的函数
options	MapTreeOptions	Configuration options / 配置选项

Returns

TreeNode<R>[]

A new tree with transformed nodes / 转换后的新树

Example

const tree = [{ id: 1, children: [{ id: 2 }] }]
mapTree(tree, (node) => ({ ...node, label: node.id }))
// => [{ id: 1, label: 1, children: [{ id: 2, label: 2 }] }]

Since

1.2.0