如何从嵌套数组中获取单个名称属性？

Question

我正在处理 Angular 项目，我需要从给定的嵌套数组对象中获取名称属性。我尝试使用 lodash 映射函数 _.map('ArrayName',(o)=>o.name); ，结果我只收到 [ Peter, Andy ] 。我想要所有名字属性 [Peter, Andy, Mills, mac, Teddy] 都这样。谁能指导我怎么做。

[{
"id": "1",
"name": "Peter",
"children": []}
,{
"id": "2",
"name": "Andy",
"children": [
  {
    "id": "3",
    "name": "Mills",
    "children": []
  },
  {
    "id": "4",
    "name": "Mac",
    "children": [
      {
        "id": "5",
        "name": "Teddy",
        "children": []
      }
    ]
  }
]}]

Answer 1

您需要递归访问嵌套的 children 数组。

这是一个使用 Array.prototype.flatMap() and spread syntax 递归迭代每个子数组并展平结果的示例。

const input = [{ "id": "1", "name": "Peter", "children": [] }, { "id": "2", "name": "Andy", "children": [{ "id": "3", "name": "Mills", "children": [] }, { "id": "4", "name": "Mac", "children": [{ "id": "5", "name": "Teddy", "children": [] }] }] }];

const recursivelyGetProp = (arr, prop) => (
  arr.flatMap(({ children, [prop]: p }) =>
    [p, ...(children.length ? recursivelyGetProp(children, prop) : [])]
  ));

console.log(recursivelyGetProp(input, 'name'));

如何从嵌套数组中获取单个名称属性？

how to fetch the single name property from nested array?

javascript

arrays

angular

lodash

arrayobject

如何从嵌套数组中获取单个名称 属性？

how to fetch the single name property from nested array?

javascript

arrays

angular

lodash

arrayobject

如何从嵌套数组中获取单个名称属性？