无法读取未定义的属性图片

Question

我有以下JSON

{
  "error": false,
  "data": {
    "id": 1,
    "name": "Jagadesha NH",
    "email": "example@gmail.com",
    "phone": "9986XXXXXX",
    "dob": "1991-06-01",
    "gender": "m",
    "active": 1,
    "created_at": "2017-02-19 21:33:04",
    "updated_at": "2017-02-19 21:33:04",
    "profile": {
      "id": 1,
      "user_id": 1,
      "picture": "https:\/\/placehold.it\/150x150",
      "about": null,
      "occupation": null,
      "created_at": "2017-02-19 21:33:04",
      "updated_at": "2017-02-19 21:33:04"
    }
  },
  "msg": ""
}

每次我尝试阅读图片属性我都会收到一条错误消息

cannot read property picture of undefined

我正在阅读

data.profile.picture

Answer 1

我是这样发现的：

var x={
  "error": false,
  "data": {
    "id": 1,
    "name": "Jagadesha NH",
    "email": "example@gmail.com",
    "phone": "9986xxxxxx",
    "dob": "1904-06-01",
    "gender": "m",
    "active": 1,
    "created_at": "2017-02-19 21:33:04",
    "updated_at": "2017-02-19 21:33:04",
    "profile": {
      "id": 1,
      "user_id": 1,
      "picture": "https:\/\/placehold.it\/150x150",
      "about": null,
      "occupation": null,
      "created_at": "2017-02-19 21:33:04",
      "updated_at": "2017-02-19 21:33:04"
    }
  },
  "msg": ""
}
;

alert(x.data.profile.picture);

如果您将 json 存储在变量中，请使用变量访问它，然后使用点 (<<variable_name>>.data.profile.picture)

Answer 2

你收到错误是因为数据本身是一个键或对象

的属性

var a = //Your json

    a.data.profile.picture

无法读取未定义的属性图片

Can not read property picture of undefined

javascript

json

vuejs2

无法读取未定义的 属性 图片

Can not read property picture of undefined

javascript

json

vuejs2

无法读取未定义的属性图片