Question

实际代码：

{
    "workbookInformation": {
        "version": "9.1",
        "source-platform": "win"
    },
    "datasources": {
        "filename": "data",
        "caption": "Title",
        "version": "qqq.1",
        "cleaning": "no",
        "inline": "true",
        "validate": "no",
        "class": "excel-direct",
        "interpretationMode": "0"
    }
}

我需要的输出：

{
    "workbookInformation": {
        "version": "9.1",
        "source-platform": "win"
    },
    "Title": {
        "filename": "data",
        "caption": "Title",
        "version": "qqq.1",
        "cleaning": "no",
        "inline": "true",
        "validate": "no",
        "class": "excel-direct",
        "interpretationMode": "0"
    }
}

caption键值即。 Title需要替换为datasources。

Answer 1

您可以使用Object.defineProperty()直接在对象上定义新属性，并将定义的属性的描述符传递给此方法，结果为Object.getOwnPropertyDescriptor()：

var obj = {"workbookInformation": {"version": "9.1","source-platform": "win"},"datasources": {"filename": "data","caption": "Title","version": "qqq.1","cleaning": "no","inline": "true","validate": "no","class": "excel-direct","interpretationMode": "0"}};

Object.defineProperty(obj, 'Title', Object.getOwnPropertyDescriptor(obj, 'datasources'));
delete obj.datasources;

console.log(obj);

.as-console-wrapper { max-height: 100% !important; top: 0; }

Answer 2

根据您的示例，您只需在根JSON上添加一个带有“Title”键的新项目，然后删除带有“datasources”键的那个项目。

假设json_obj为你的json对象：

json_obj[json_obj.datasources.caption] = json_obj.datasources;
delete(json_obj.datasources);

Answer 3

将JSON字符串解析为Javascript对象，以便您可以轻松地修改它。

jsObj = JSON.parse(jsonData);

下面我用所需的键创建一个新对象，最后再次序列化。

jsonData = JSON.stringify({
  workbookInformation: jsObj.workbookInformation,
  Title: jsObj.datasources,
});

如何使用javascript在json中替换或更新具有子值的键？

3 个答案: