Javascript:将普通 Node 数组(带有指向父 Node 的指针)转换为嵌套数据结构

Question

我已经阅读了这个问题的许多解决方案，例如正在尝试使用数组到树

鉴于此数据:

[
  {
    "_id": 33,
    "parent": null,
    "name": "Wealth and Investment Management and Insurance",
    "code": "wm-0001",
    "__v": 0
  },
  {
    "_id": 34,
    "parent": null,
    "name": "Corporate and Investment Banking",
    "code": "cib-0001",
    "__v": 0
  },
  {
    "_id": 35,
    "parent": 33,
    "name": "WIMI Business Unit 1",
    "code": "WIMBU-0001",
    "__v": 0
  }
]

并使用此代码

var arrayToTree = require('array-to-tree');
var tree = arrayToTree(data, {
            parentProperty: 'parent',
            customID: '_id'
        });

我不明白为什么它会让我的 child 成为孤儿？即我正在拿回这个

[ { _id: 33,
    parent: null,
    name: 'Wealth and Investment Management and Insurance',
    code: 'wm-0001',
    __v: 0 },
  { _id: 34,
    parent: null,
    name: 'Corporate and Investment Banking',
    code: 'cib-0001',
    __v: 0 } ]

Answer 1

如果 _id 的类型为 Number，array-to-tree 似乎不知道该怎么办；

更改此项会将平面数组转换为树结构。

您可以循环遍历数组，将 keys _id/parent 转换为 string(如果它们数字;

只有在您要求时我才会编辑此内容(但上述解决了问题)