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使用JavaScript中的键从JSON查找值

[英]Find value from JSON using key in JavaScript

I have JSON file in below format. 我有以下格式的JSON文件。 I want to get value ie (mouse, aets, infor) using key values. 我想使用键值获取值,例如(鼠标,Aets,infor)。

{
  "list": [
    {
      "item_alias_list": "mouse",
      "eancode": "19",

    },
    {
      "item_alias_list": "aets",
      "eancode": "11",

    },
    {
      "item_alias_list": "infor",
      "eancode": "23",

    }
  ]
}
var a = {"list":[ 
{

"item_alias_list":"mouse",
"eancode":"19",
}
,   {

"item_alias_list":"aets",
"eancode":"11",
}
,   {

"item_alias_list":"infor",
"eancode":"23",
}
]};

// get "mouse"
var ret = a.list[0].item_alias_list;

删除有效JSON的数字字符串后的逗号

you can try this 你可以试试这个

suppose 假设

var Data =

 {"list":[{"item_alias_list":"mouse","eancode":"19"},
      {"item_alias_list":"aets","eancode":"11"},
      {"item_alias_list":"infor","eancode":"23"}]
 };

var len = Data.list.length;
for(var i = 0; i<len; i++)
{
     for(var key in Data.list[i])
     {
           alert(key +"="+ Data.list[i][key])
     }
}

live Demo : http://jsfiddle.net/PQcFx/40/ 现场演示http : //jsfiddle.net/PQcFx/40/

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