如何重命名JSON密钥 [英] How to rename JSON key

问题描述

我有一个具有以下内容的JSON对象:

I have a JSON object with the following content:

[
  {
    "_id":"5078c3a803ff4197dc81fbfb",
    "email":"[e-mail]",
    "image":"some_image_url",
    "name":"Name 1"
  },
  {
    "_id":"5078c3a803ff4197dc81fbfc",
    "email":"[e-mail]",
    "image":"some_image_url",
    "name":"Name 2"
  }
]

我想将"_id"键更改为"id"，这样它将变成

I want to change the "_id" key to "id" so it would become

[
  {
    "id":"5078c3a803ff4197dc81fbfb",
    "email":"[e-mail]",
    "image":"some_image_url",
    "name":"Name 1"
  },
  {
    "id":"5078c3a803ff4197dc81fbfc",
    "email":"[e-mail]",
    "image":"some_image_url",
    "name":"Name 2"
  }
]

我将如何使用Javascript，jQuery或Ruby，Rails做到这一点?

How would I do that either with Javascript, jQuery or Ruby, Rails?

谢谢.

推荐答案

var json = '[{"_id":"5078c3a803ff4197dc81fbfb","email":"[e-mail]","image":"some_image_url","name":"Name 1"},{"_id":"5078c3a803ff4197dc81fbfc","email":"[e-mail]","image":"some_image_url","name":"Name 2"}]';

var obj = JSON.parse(json)[0];
obj.id = obj._id;
delete obj._id;

json = JSON.stringify([obj]);

这会将json更改为:

This changes json to:

[{"email":"[e-mail]","image":"some_image_url","name":"Name 1","id":"5078c3a803ff4197dc81fbfb"}]

由于顺序在JSON中的名称/值对中没有意义，因此与您想要的结果相同.

Since order doesn't have meaning in a name/value pair in JSON, this is the same as your desired result.

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