相关疑难解决方法(0)

我有一个json对象,由AJAX请求返回,我遇到了一些麻烦,.length因为它一直在返回undefined.只是想知道我是否正确使用它:

console.log(data.length);
console.log(data.phones.length);

它们都返回,undefined即使它们是有效的对象.

更新:
返回的JSON对象的示例:

{"reqStatus":true,"phones":{"one":{"number":"XXXXXXXXXX","type":"mobile"},"two":{"number":"XXXXXXXXXX","type":"mobile"}}}

我有Json字符串,如下所示

 {
"JsonValues":{

        "id": "MyID",

         "values": {
            "value1":{
                "id": "100",
                "diaplayName": "MyValue1"
            },
            "value2":{
                "id": "200",
                "diaplayName": "MyValue2"
            }
       }
}
}

我想将Json字符串转换为以下类

  class ValueSet
   {
    [JsonProperty("id")]
    public string id
    {
        get;
        set;
    }
    [JsonProperty("values")]
    public List<Value> values
    {
        get;
        set;
    }
  }

class Value
{
    public string id
    {
        get;
        set;
    }
    public string DiaplayName
    {
        get;
        set;
    }
}

我的反序列化代码是

JavaScriptSerializer js = new JavaScriptSerializer();
        StreamReader sr = new StreamReader(@"ValueSetJsonString.txt");
        string jsonString = sr.ReadToEnd();
        var items = JsonConvert.DeserializeObject<ValueSet>(jsonString); …

我想在javascript中创建以下数据结构:

d = {"foo": [3, 77, 100], "bar": [10], "baz": [99], "biff": [10]}

我的起始数据结构是一个字典列表:

input = [{"key": "foo", "val": 3}, {"key": "bar", "val": 10}, {"key": "foo", "val": 100}, {"key": "baz", "val": 99}, {"key": "biff", "val": 10}, {"key": "foo", "val": 77]

如何生成所需的数据结构？以下代码似乎没有将值附加到值数组.

var d = {}

for (var i in input) {
    var datum = input[i];
    d[datum.key] = datum.val
}

我正在尝试将 json 字符串转换为数组，但当我解析它时，我仍然得到 json 代码作为回报。

var slag = [];
                for(var i=0; i < data.length; i++)
                {
                    var string = JSON.stringify(data[i]);
                    var parse = JSON.parse(string)
                    slag.push(parse);
                }
                console.log(slag);

现在我仍然得到这个输出

0: {id: "4", club: "driver", afstand: "230", shot: "straight", uitvoering: "perfect"}
1: {id: "9", club: "ijzer7", afstand: "140", shot: "straight", uitvoering: "perfect"}

但我想要在数组中这样的东西

[4, "driver", 240, "straight", "perfect"]

export class DuyurularPage {
    duyurular: any;
    loading: any;

    constructor(public navCtrl: NavController, public navParams: NavParams, public loadingPage: LoadingController,
        platform: Platform, statusBar: StatusBar, splashScreen: SplashScreen) {

        this.loading = this.loadingPage.create({
            content: `
            <ion-spinner></ion-spinner>`
        });

        platform.ready().then(() => {
            statusBar.styleDefault();
            splashScreen.hide();

            var notificationOpenedCallback = function (jsonData) {
                this.duyurular = jsonData.notification.payload;
            };

            alert
            window["plugins"].OneSignal
            .startInit("12312412412412", "1231241212")
            .handleNotificationOpened(notificationOpenedCallback)
            .endInit();
        });
    }
}

var notificationOpenedCallback = function...←在这个功能里面,我无法访问this.duyurular.

我必须duyurular从json 编写这个数组().我怎样才能做到这一点？