如何重命名JSON密钥

Question

我有一个具有以下内容的JSON对象：

[
  {
    "_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

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

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

谢谢。

Answer 1

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]);

这将json更改为：

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

由于订单在JSON中的名称/值对中没有意义，因此与您想要的结果相同。