从 JSON 获取 KEY

Question

正在关注 JSON：https://api.myjson.com/bins/3yz34

我在想我可以使用一个内部 ID 作为一个键（这简化了循环多个实体和设置数据收集）并使用一个值来显示。但是，我无法获取密钥的值。

            $.each(tabledata.Companies, function (){
                company = this;
                alert(company);
                var test = Object.keys( company );
                console.log(test);
            });

Object.keys() 只是给我值中的字符数。

var test = Object.keys( company );

Returns:

["0", "1", "2", "3", "4", "5", "6", "7"]
["0", "1", "2", "3", "4", "5", "6", "7", "8"]
["0", "1", "2", "3", "4", "5", "6"]
["0", "1", "2", "3", "4"]
["0", "1", "2", "3", "4", "5", "6"]

键值对中的值的字符数似乎是多少？非常坚持这一点，有什么想法吗？或者可能以不同的方式设置 JSON？

提前致谢！

Answer 1

更改循环函数的签名以传入参数

$.each(tabledata.Companies, function(key, value) {...}

查看下面的演示

已更新演示 根据评论

var tabledata = {
  "Companies": {
    "8df135f4-db42-486c-8d8c-fbbdd561c25e": "Phillips",
    "47d946e3-56db-4bc7-8472-3809eb48506d": "Bauknecht",
    "3ae13b97-7a09-4342-8953-c1d5a55687db": "Capitol",
    "fb017214-dbc1-4b71-8080-4f9b530f4b49": "Bosch",
    "50ede412-4eb0-429b-8d73-a1bfef41ebbc": "LG Corp"
  },  
  "Pets": {
    "dog": "Snoopy",
    "cat": "Silvester",
    "bird": "Sweetie",
    "snake": "Snaker",
    "fish": "Goldie Locks"
  }

}

var attributeName="Companies";

$(function() {
  $.each(tabledata[attributeName], function(key, value) {
    console.log("KEY:" + key + " -> Value:" + value);
  });
  
  attributeName="Pets";
  
  $.each(tabledata[attributeName], function(key, value) {
    console.log("KEY:" + key + " -> Value:" + value);
  });

});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

从 JSON 获取 KEY

Get KEY from JSON

javascript

json

key

key-value