在JavaScript中解析具有空属性名称的json对象

Question

如果我有以下的JSON对象... 我该如何访问字符串 "Passwords must have..."。

ModelState中的""属性名称使我感到困惑。

谢谢！

{
    "Message": "The request is invalid.",
    "ModelState": {
        "": [
            "Passwords must have at least one non letter or digit character. Passwords must have at least one uppercase ('A'-'Z')."
        ]
    }
}

- Brian Rice

---

testsome["ModelState"][""]？ - Pramod Karandikar

Answer 1

像这样

var data = {
    "Message": "The request is invalid.",
    "ModelState": {
        "": [
            "Passwords must have at least one non letter or digit character. Passwords must have at least one uppercase ('A'-'Z')."
        ]
    }
};

console.log(data.ModelState['']);

- Oleksandr T.

Answer 2

var a={
    "Message": "The request is invalid.",
"ModelState": {
    "": [
        "Passwords must have at least one non letter or digit character. Passwords must have at least one uppercase ('A'-'Z')."
    ]
}
};
console.log(a.ModelState[""]);

- Rakib

---

稍作改进：for (var i = 0; i < a.ModelState[''].length; i++) alert(a.ModelState[''][i]); - Brian Rice

Answer 3

var a = {
    "Message": "The request is invalid.",
    "ModelState": {
        "": [
            "Passwords must have at least one non letter or digit character. Passwords must have at least one uppercase ('A'-'Z')."
        ]
    }
}

var yourAnswer = a.ModelState[""];```

- LexJacobs

Answer 4

你可以这样实现：

var somedata = {
    "Message": "The request is invalid.",
    "ModelState": {
        "": [
            "Passwords must have at least one non letter or digit character. Passwords must have at least one uppercase ('A'-'Z')."
        ]
    }
};
console.log(somedata["ModelState"][""]);

- Pramod Karandikar

Answer 5

var my_dict = {
    "Message": "The request is invalid.",
    "ModelState": {
        "": [
            "Passwords must have at least one non letter or digit character. Passwords must have at least one uppercase ('A'-'Z')."
        ]
    }
}
var my_string = my_dict['ModelState'][''][0]

这对我有效

- ted