在 javascript 中重命名 JSON 键答案

【问题标题】：Rename JSON key in javascript在 javascript 中重命名 JSON 键
【发布时间】：2018-06-05 11:45:07
【问题描述】：

你好朋友，我想重命名我的 JSON 密钥，所以下面是我的代码

 var json = '[{"Status":"Success","Data":[{"UserID":null,"UserName":null,"EmailID":null,"EmailIDExists":false,"Active":null,"Country":null,"WishListID":"31","WishListName":"General","WishListItems":[{"WishListItemID":"3","ItemCode":"4414082000005","ItemName":"Notebook 4414-082","Image":"http://aljeel.gct.om/ProductsImages/4414082000005_MT1.jpg","ItemPrice":0.500,"CreatedDate":"25/05/2018"}]},{"UserID":null,"UserName":null,"EmailID":null,"EmailIDExists":false,"Active":null,"Country":null,"WishListID":"24","WishListName":"Default","WishListItems":[]}],"Message":null}]';

var obj = JSON.parse(json)[0].Data;
obj.data = obj.WishListItems;
delete obj.WishListItems;

json = JSON.stringify([obj]);
console.log("FINAL JSON " + (json));

我想用 data 键更改 WatchListItem 键，但是当我在上面运行代码时 JSON 键并没有取代任何想法，我该如何解决这个问题？

【问题讨论】：

数据键也是一个数组，所以你可能需要改为var obj = JSON.parse(json)[0].Data[0];
这能回答你的问题吗？ How to rename JSON key

标签： javascript json react-native

【解决方案1】：

试试这个：

var json = '[{"Status":"Success","Data":[{"UserID":null,"UserName":null,"EmailID":null,"EmailIDExists":false,"Active":null,"Country":null,"WishListID":"31","WishListName":"General","WishListItems":[{"WishListItemID":"3","ItemCode":"4414082000005","ItemName":"Notebook 4414-082","Image":"http://aljeel.gct.om/ProductsImages/4414082000005_MT1.jpg","ItemPrice":0.500,"CreatedDate":"25/05/2018"}]},{"UserID":null,"UserName":null,"EmailID":null,"EmailIDExists":false,"Active":null,"Country":null,"WishListID":"24","WishListName":"Default","WishListItems":[]}],"Message":null}]';

var obj = JSON.parse(json)[0].Data;

console.log("Before replace", obj);

var res = obj.map(item => {
  item.data = item.WishListItems;
  delete item.WishListItems;
  return item;
});

console.log("After replace", res);

【讨论】：

【解决方案2】：

obj 是 undefined。将 obj 更改为 obj[0] 修复了它。

var json = '[{"Status":"Success","Data":[{"UserID":null,"UserName":null,"EmailID":null,"EmailIDExists":false,"Active":null,"Country":null,"WishListID":"31","WishListName":"General","WishListItems":[{"WishListItemID":"3","ItemCode":"4414082000005","ItemName":"Notebook 4414-082","Image":"http://aljeel.gct.om/ProductsImages/4414082000005_MT1.jpg","ItemPrice":0.500,"CreatedDate":"25/05/2018"}]},{"UserID":null,"UserName":null,"EmailID":null,"EmailIDExists":false,"Active":null,"Country":null,"WishListID":"24","WishListName":"Default","WishListItems":[]}],"Message":null}]';

var obj = JSON.parse(json)[0].Data[0];

obj.data = obj.WishListItems;
delete obj.WishListItems;

json = JSON.stringify([obj]);
console.log("FINAL JSON " + (json));

【讨论】：

在 WishListitem 数据中删除您的代码，它不会用数据键替换 WishListItems
@HarshalKalavadiya 首先他创建了一个名为“data”的新节点，他在其中从“WishListItems”节点分配值，然后删除第二个节点，因此您将拥有一个名为 data 的键'WishListItems' 内容。你试过了吗？
你的问题很不清楚。我不知道你要归档什么。
@Red 我的问题很明确，我想用数据键重命名 WishListItems 键，我已经在我的问题中突出显示了这些键
Babis.amas：我尝试了上面的代码，但它在 WishListItems 数组数据中被删除了我只想用数据键重命名 WishListItems

【解决方案3】：

您的代码的问题是您的 obj 不是一个对象，它是一个数组。你必须使用

var obj = JSON.parse(json)[0].Data[0];

在作业中。或者对所有对象

进行

如下所示使用 forEach

    var json = '[{"Status":"Success","Data":[{"UserID":null,"UserName":null,"EmailID":null,"EmailIDExists":false,"Active":null,"Country":null,"WishListID":"31","WishListName":"General","WishListItems":[{"WishListItemID":"3","ItemCode":"4414082000005","ItemName":"Notebook 4414-082","Image":"http://aljeel.gct.om/ProductsImages/4414082000005_MT1.jpg","ItemPrice":0.500,"CreatedDate":"25/05/2018"}]},{"UserID":null,"UserName":null,"EmailID":null,"EmailIDExists":false,"Active":null,"Country":null,"WishListID":"24","WishListName":"Default","WishListItems":[]}],"Message":null}]';

JSON.parse(json)[0].Data.forEach(obj=>{
obj.data = obj.WishListItems;
    delete obj.WishListItems;
 json = JSON.stringify([obj]);
    console.log("FINAL JSON " + (json));
});

【讨论】：