JavaScript/ typescript : unable to regenerate object

Question

我有一个如下指定的对象:

{
"player settings": [
    {
      "id": 1,
      "labelName": "site language",
      "labelValue": [
        {
          "id": 1,
          "languageName": "ARABIC",
          "language": "لغتك",
          "languageCode": "AE"
        },
        {
          "id": 2,
          "languageName": "CHINESE",
          "language": "你的语言",
          "languageCode": "ZH"
        },
      ],
      "dataType": "DD",
      "selectedData": "2"
    },
    {
      "id": 2,
      "labelName": "subtitle language",
      "labelValue": [
        {
          "id": 1,
          "languageName": "ARABIC",
          "language": "لغتك",
          "languageCode": "AE"
        },
        {
          "id": 2,
          "languageName": "CHINESE",
          "language": "你的语言",
          "languageCode": "ZH"
        },

      ],
      "dataType": "DD",
      "selectedData": "1"
    },

  ]
},
{
  "channel": [
    {
      "id": 11,
      "labelName": "channel label",
      "dataType": "TX",
      "selectedData": "jhfh"
    }
  ]
},
{
  "others": [
    {
      "id": 16,
      "labelName": "others label",
      "dataType": "TX",
      "selectedData": "dhgdhg"
    }
  ]
}

如何修改并重新生成具有以下条件的对象:

1. 如果 dataType === 'DD'，则将 selectedData 转换为数字。

我编写了以下代码，但卡在这里:

for (var j = 0; j < this.myobject.length; j++){
      this.myobject.forEach(obj => {
        console.log(obj)
      });
}

Answer 1

您可以使用for..in

let data = {"player settings": [{"id": 1,"labelName": "site language","labelValue": [{"id": 1,"languageName": "ARABIC","language": "لغتك","languageCode": "AE"},{"id": 2,"languageName": "CHINESE","language": "你的语言","languageCode":"ZH"},],"dataType": "DD","selectedData": "2"},],"player settings2": [{"id": 1,"labelName": "site language","labelValue": [{"id": 1,"languageName": "ARABIC","language": "لغتك","languageCode": "AE"},{"id": 2,"languageName": "CHINESE","language": "你的语言","languageCode":"ZH"},],"dataType": "NO DD","selectedData": "2"},]}

for (let key in data) {
  data[key].forEach(obj => {
    if (obj.dataType === "DD") {
      obj.selectedData = +(obj.selectedData || 0)
    }
  })
}

console.log(data)

<小时/>

不可变的方法

let data = {"player settings": [{"id": 1,"labelName": "site language","labelValue": [{"id": 1,"languageName": "ARABIC","language": "لغتك","languageCode": "AE"},{"id": 2,"languageName": "CHINESE","language": "你的语言","languageCode":"ZH"},],"dataType": "DD","selectedData": "2"},],"player settings2": [{"id": 1,"labelName": "site language","labelValue": [{"id": 1,"languageName": "ARABIC","language": "لغتك","languageCode": "AE"},{"id": 2,"languageName": "CHINESE","language": "你的语言","languageCode":"ZH"},],"dataType": "NO DD","selectedData": "2"},]}

let newObj = {}

for (let key in data) {
  newObj[key] = data[key]
  data[key].forEach(obj => {
    if (obj.dataType === "DD") {
      newObj.selectedData = +(obj.selectedData || 0)
    }
  })
}

console.log(newObj)