如何获得JSON数据的内心最多的孩子

Question

我有一个类似这样的JSON数据，并且我需要获取内部大多数孩子的数据，即 hierarchyLevel：4 。而且这个JSON数据不是静态的，hierarchyLevel可以做任何事情，比如5,6,7。 请帮助在javascript中找到解决方案。

{
  "hierarchylist": [
    {
      "hierarchyId": 10,
      "hierarchyLevel": 0,
      "name": "ABC",
      "parentId": 0,
      "children": [
        {
          "hierarchyId": 12,
          "hierarchyLevel": 1,
          "name": "ABC-Child1",
          "parentId": 10,
          "children": [
            {
              "hierarchyId": 2,
              "hierarchyLevel": 2,
              "name": "People Management & Development1 ",
              "parentId": 12,
              "children": [
                {
                  "hierarchyId": 5,
                  "hierarchyLevel": 3,
                  "name": "Resourcing2_1",
                  "parentId": 2,
                  "children": [
                    {
                      "hierarchyId": 19,
                      "hierarchyLevel": 4,
                      "name": "Resource Request ",
                      "parentId": 5,
                      "children": [],
                      "docId": 19,
                      "docstatusid": 20
                    }
                  ]
                }
              ]
            }
          ]
        }
      ]
    }
  ]
}

感谢。

Answer 1

这应该让你成为最内在的人：

let data = {
  "hierarchylist": [
    {
      "hierarchyId": 10,
      "hierarchyLevel": 0,
      "name": "ABC",
      "parentId": 0,
      "children": [
        {
          "hierarchyId": 12,
          "hierarchyLevel": 1,
          "name": "ABC-Child1",
          "parentId": 10,
          "children": [
            {
              "hierarchyId": 2,
              "hierarchyLevel": 2,
              "name": "People Management & Development1 ",
              "parentId": 12,
              "children": [
                {
                  "hierarchyId": 5,
                  "hierarchyLevel": 3,
                  "name": "Resourcing2_1",
                  "parentId": 2,
                  "children": [
                    {
                      "hierarchyId": 19,
                      "hierarchyLevel": 4,
                      "name": "Resource Request ",
                      "parentId": 5,
                      "children": [],
                      "docId": 19,
                      "docstatusid": 20
                    }
                  ]
                }
              ]
            }
          ]
        }
      ]
    }
  ]
}

let children = data.hierarchylist[0].children;

while(children[0] && children[0].children && children[0].children.length) {
  children = children[0].children;
}

console.log(children);

Answer 2

您可以尝试使用while循环，这是示例

var children = json['hierarchylist']['children'][0];

while(typeof children !== 'undefined') {
    children = children['children'][0];
}

console.log(children);