javascript - 将json转换为其他json结构

Question

我有一个具有这种结构的对象数组:

const treeData = [
  { 0: ["0-0", "0-1"] },
  { 1: ["1-0", "1-1"] }
]

它可能更深，但数组数据总是 json 或字符串

const treeData = [
  { 0: ["0-0", "0-1"] },
  { 1: ["1-0", "1-1"] },
    2,
    3
]

我想得到这样的东西:

const treeDataResult = [
  {
    label: "0",
    value: "0",
    children: [
      {
        label: "0-0",
        value: "0-0"
      },
      {
        label: "0-1",
        value: "0-1",
      }
    ]
  },
  {
    label: "1",
    value: "1",
    children: [
      {
        label: "1-0",
        value: "1-0",
      },
      {
        label: "1-1",
        value: "1-1",
      }
    ]
  },
  { 
    label: "2",
    value: "2"
  },
  { 
    label: "3",
    value: "3"
  }
]

我现在的代码是这样的:

const treeData = [
      { "0": ["0-0", "0-1"] },
      { "1" : ["1-0", "1-1"] }
    ];

const convertNode = (parentNode) =>
  parentNode.map(
    childnode => {
      if (typeof(childNode) === 'string')
        return {
          label: childNode,
          value: childNode
        }
      else
        return
      childNode.map((key, val) =>
        ({
          label: key,
          value: key,
          children: convertNode(val)
        })
      )
    }
  )

var treeDataResult = convertNode(treeData);
console.log(treeDataResult);

Answer 1

如果使用JSON.parse来获取数据，你可以这样尝试:

var j = '[ { "0": ["0-0", "0-1"] }, { "1": ["1-0", "1-1"] }, 2, 3 ]'

var o = JSON.parse(j, (k, v) => (k = v.constructor) === Array ? v : 
  k !== Object ? ({ label: v, value: v }) :
  ({ label: k = Object.keys(v)[0], value: k,  children: v[k] }) )

console.log( o )