js递归如何生成该数据的预览json格式?

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2024年06月24日 09:10 · 阅读数 24

需求就是通过json生成json，简化后的格式如下，如何通过递归的方式生成这些数据表示的最终格式？求教

//这个是各个类型生成的默认值
const defaultVal = {
    string:"默认值",
    int:1,
    float:0.1,
    double:10.34,
    boolean:false,
    array:null
}

//这个是json待转化的
[
    {
        "type": "object",
        "propertyName": "user",
        "children": [
            {
                "type": "string",
                "propertyName": "name",
                "children": null
            },
            {
                "type": "int",
                "propertyName": "age",
                "children": null,
                
            },
            {
                "type": "array",
                "propertyName": "data",
                "children": [
                    {
                        "type": "object",
                        "name": "name",
                        "children": null
                    }
                ]
            }
        ]
    }
]

//上述转化结果为：
{
    name:'默认值',
    age:1,
    data:[{}]
}

1个回答

test

2024-06-24

function toData(rule, defVal, init) {
    const copy = val => JSON.parse(JSON.stringify(val));
    const initial = init ?? copy(defVal[rule.type]);
    return rule.children ? rule.children.reduce((res, v) => {
      if(Array.isArray(res)) res.push(toData(v, defVal));
      else if({}.toString.call(res) == '[object Object]') toData(v, defVal, res[v.propertyName] = copy(defVal[v.type]))
      return res;
  }, initial) : initial;
}

toData(
  {
    "type": "object",
    "propertyName": "user",
    "children": [
      {
        "type": "string",
        "propertyName": "name",
        "children": null
      },
      {
        "type": "int",
        "propertyName": "age",
        "children": null,

      },
      {
        "type": "array",
        "propertyName": "data",
        "children": [
          {
            "type": "object",
            "name": "name",
            "children": null
          }
        ]
      }
    ]
  },
  {
    string:"默认值",
    int:1,
    float:0.1,
    double:10.34,
    boolean:false,
    array:[],
    object: {},
  }
)

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