Javascript循环+对象问题: How to get required item in object with loop

Question

我在循环、对象方面遇到一些麻烦

我有这样的 json;

var jsonPermission = {"permissions": [
                            {"permissionId": 1, "permissionName": "Admin Permission", "roleDesc": "This is an Admin Permission"},
                            {"permissionId": 2, "permissionName": "Manager Permission", "roleDesc": "This is a Manager Permission"},
                            {"permissionId": 3, "permissionName": "User Permission", "roleDesc": "This is a user Permission"}
                        ]
                    };

我必须制作这样的对象；

[
    { data: "Admin Permission",        type: ["permission"] },
    { data: "Manager Permission",        type: ["permission"] },
    { data: "User Permission",      type: ["permission"] }
]

所以我使用了以下代码；

//For Permissions
var permissions_len = jsonPermission.permissions.length;
var arr_permissions = [];
var permission_type = ["permission"];
for(var i=0;i<permissions_len;i++){
    var obj_permissions = {};
    obj_permissions["data"] = jsonPermission.permissions[i].permissionName;
    obj_permissions["type"] = permission_type;
    arr_permissions.push(obj_permissions);
}

但我却变成这样:

[
    { data: "Admin Permission",        type: [1] },
    { data: "Manager Permission",        type: [1] },
    { data: "User Permission",      type: [1] }
]

如何表现？

Answer 1

我认为这是您用来评估结果的工具的问题，如果您使用 firefox console.log() 将结果记录到控制台，它会给您显示的结果。但是，如果您在代码中使用 for 循环正确检查该值，您会发现这些值是正确的。

检查如下所示的值

var permissions_len = jsonPermission.permissions.length;
var arr_permissions = [];
var permission_type = ["permission"];
for(var i=0;i<permissions_len;i++){
    var obj_permissions = {};
    obj_permissions["data"] = jsonPermission.permissions[i].permissionName;
    obj_permissions["type"] = permission_type;
    arr_permissions.push(obj_permissions);
}

for(var i=0;i<permissions_len;i++){
    var a = arr_permissions[i];
    console.log(a.data, a.type)
}

你可以测试一下here .