如何将json对象名称转换为字符串格式

Question

var Data = {    "1":"United States",
                "2":"United Kingdom",
                "3":"Aruba",
                "4":"United Kingdom",
                "5":"Aruba",
                "6":"Bahrain",
                "7":"United Kingdom",
                "8":"Algeria",
                "9":"Andorra",
                "10":"American Samoa"
}
var IdKeyValuePair = [{"DropD1":Data},{"DropD2":Data},{"DropD3":Data},{"DropD4":Data}];
var obj= {
            id           : IdKeyValuePair,
            MultiColuumn : true,
            Checkbox     : true,
            Pagination   : false,
            max_height   : 400

         };

我想打印DropD1，DropD2的名称。我以这种方式尝试。 但是我做不到。

var idName = [],i;
idLen = obj.id.length;
for(i=0;i<idLen;i++){
    idName[i] = ''+obj.id[i];
    console.log(idName[i]);
}

我正在获取DropD1，DropD2 ..但问题是它以对象形式存在，所以我如何将其转换为字符串...我希望结果是这种格式...

for(i=0;i<idLen;i++){
   console.log(idName[i]);
}

字符串格式的预期输出不在对象中：

DropD1 DropD2 DropD3

Answer 1

尝试这个。 对我有用

var IdKeyValuePair = [{ "DropD1": Data["1"] }, { "DropD2": Data["2"] }, { "DropD3": Data["3"]}, { "DropD4": Data["4"]}]; so on and so forth.

Answer 2

我使用浏览器的stringify属性得到了一种解决方案：

var jsonobj={"name":"George", "age":29, "friends":["John", "Sarah", "Albert"]}
var jsonstr=JSON.stringify(jsonobj)
alert(typeof jsonstr) //string

U可以通过以下方式将其转换为javascript对象：

var jsonstr='{"name":"George", "age":29, "friends":["John", "Sarah", "Albert"]}'
var george=JSON.parse(jsonstr) //convert JSON string into object
alert(george.age)

有关json的更多信息，请参考以下链接，

http://www.javascriptkit.com/jsref/json.shtml

Answer 3

尝试这个

var idName = [],i;
idLen = obj.id.length;
for(i=0;i<idLen;i++){
    idName[i] = obj.id[i];
}
console.log(idName.join(" "));

Answer 4

尝试这个：

  var Data = {    "1":"United States",
                  "2":"United Kingdom",
                  "3":"Aruba",
                  "4":"United Kingdom",
                  "5":"Aruba",
                  "6":"Bahrain",
                  "7":"United Kingdom",
                  "8":"Algeria",
                  "9":"Andorra",
                  "10":"American Samoa"
  }
  var IdKeyValuePair = [{"DropD1":Data},{"DropD2":Data},{"DropD3":Data},{"DropD4":Data}];
  var obj= {
              id           : IdKeyValuePair,
              MultiColuumn : true,
              Checkbox     : true,
              Pagination   : false,
              max_height   : 400

           };

  var idName = [],i;
  idLen = obj.id.length;
  for(i=0;i<idLen;i++){
    idName[i] = obj.id[i];
    console.info(JSON.stringify(idName[i]));
  }

您不必要地通过将空字符串添加到对象（“” +对象）来将对象转换为字符串