Fatal编程技术网
  • javascript/
  • Javascript 访问json对象的第二级

Javascript 访问json对象的第二级

javascript json

Javascript 访问json对象的第二级,javascript,json,Javascript,Json,我有一个如下所示的数据对象： [ { "key": "K1204", "values": [ { "key": "Both", "values": [ { "key": 1420070400000, "values": 27927.7349421797 }, { "key": 142274880

我有一个如下所示的数据对象：

[
  {
    "key": "K1204", 
    "values": [
      {
        "key": "Both", 
        "values": [
          {
            "key": 1420070400000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1422748800000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1425168000000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1427846400000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1430438400000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1433116800000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1435708800000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1438387200000, 
            "values": 27927.734942179697
          }, 
          {
            "key": 1441065600000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1443657600000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1446336000000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1448928000000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1451606400000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1454284800000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1456790400000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1459468800000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1462060800000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1464739200000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1467331200000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1470009600000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1472688000000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1475280000000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1477958400000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1480550400000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1483228800000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1485907200000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1488326400000, 
            "values": 36929.200142179696
          }
        ]
      }
    ]
  }
]

[
      {
        "key": "Both", 
        "values": [
          {
            "key": 1420070400000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1422748800000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1425168000000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1427846400000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1430438400000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1433116800000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1435708800000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1438387200000, 
            "values": 27927.734942179697
          }, 
          {
            "key": 1441065600000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1443657600000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1446336000000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1448928000000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1451606400000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1454284800000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1456790400000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1459468800000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1462060800000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1464739200000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1467331200000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1470009600000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1472688000000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1475280000000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1477958400000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1480550400000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1483228800000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1485907200000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1488326400000, 
            "values": 36929.200142179696
          }
        ]
      }
    ]
我要做的是让它看起来像这样：

[
  {
    "key": "K1204", 
    "values": [
      {
        "key": "Both", 
        "values": [
          {
            "key": 1420070400000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1422748800000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1425168000000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1427846400000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1430438400000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1433116800000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1435708800000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1438387200000, 
            "values": 27927.734942179697
          }, 
          {
            "key": 1441065600000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1443657600000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1446336000000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1448928000000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1451606400000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1454284800000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1456790400000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1459468800000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1462060800000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1464739200000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1467331200000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1470009600000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1472688000000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1475280000000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1477958400000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1480550400000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1483228800000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1485907200000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1488326400000, 
            "values": 36929.200142179696
          }
        ]
      }
    ]
  }
]

[
      {
        "key": "Both", 
        "values": [
          {
            "key": 1420070400000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1422748800000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1425168000000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1427846400000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1430438400000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1433116800000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1435708800000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1438387200000, 
            "values": 27927.734942179697
          }, 
          {
            "key": 1441065600000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1443657600000, 
            "values": 27927.7349421797
          }, 
          {
            "key": 1446336000000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1448928000000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1451606400000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1454284800000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1456790400000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1459468800000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1462060800000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1464739200000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1467331200000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1470009600000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1472688000000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1475280000000, 
            "values": 36929.2001421797
          }, 
          {
            "key": 1477958400000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1480550400000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1483228800000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1485907200000, 
            "values": 36929.200142179696
          }, 
          {
            "key": 1488326400000, 
            "values": 36929.200142179696
          }
        ]
      }
    ]
我试过这个：

var data_costByScn2 = data3.values

console.log("data3val: ", data_costByScn2)
但是它返回未定义的值……我如何让它返回json对象中的下一个级别？

您正在查找第一个数组元素的
值


var data_costByScn2 = data3[0].values

console.log("data3val: ", data_costByScn2)




var数据3=[
{
“密钥”：“K1204”，
“价值观”：[
{
“密钥”：“两者”，
“价值观”：[
{
“密钥”：1420070400000，
“价值”：27927.7349421797
}, 
{
“密钥”：1422748800000，
“价值”：27927.7349421797
}, 
{
“密钥”：1425168000000，
“价值”：27927.7349421797
}, 
{
“密钥”：1427846400000，
“价值”：27927.7349421797
}, 
{
“密钥”：143043840000，
“价值”：27927.7349421797
}, 
{
“密钥”：143311680000，
“价值”：27927.7349421797
}, 
{
“密钥”：1435708800000，
“价值”：27927.7349421797
}, 
{
“密钥”：143837200000，
“价值”：27927.734942179697
}, 
{
“密钥”：1441065600000，
“价值”：27927.7349421797
}, 
{
“密钥”：1443657600000，
“价值”：27927.7349421797
}, 
{
“密钥”：1446336000000，
“价值”：36929.2001421797
}, 
{
“密钥”：1448928000000，
“价值”：36929.2001421797
}, 
{
“密钥”：1451606400000，
“价值”：36929.2001421797
}, 
{
“密钥”：1454284800000，
“价值”：36929.200142179696
}, 
{
“密钥”：1456790400000，
“价值”：36929.2001421797
}, 
{
“密钥”：1459468800000，
“价值”：36929.200142179696
}, 
{
“密钥”：146206080000，
“价值”：36929.200142179696
}, 
{
“钥匙”：1464739200000，
“价值”：36929.200142179696
}, 
{
“钥匙”：146733120000，
“价值”：36929.2001421797
}, 
{
“密钥”：1470009600000，
“价值”：36929.2001421797
}, 
{
“密钥”：1472688000000，
“价值”：36929.2001421797
}, 
{
“密钥”：1475280000000，
“价值”：36929.2001421797
}, 
{
“钥匙”：1477958400000，
“价值”：36929.200142179696
}, 
{
“密钥”：148055040000，
“价值”：36929.200142179696
}, 
{
“密钥”：1483228800000，
“价值”：36929.200142179696
}, 
{
“密钥”：148590720000，
“价值”：36929.200142179696
}, 
{
“密钥”：148832640000，
“价值”：36929.200142179696
}
]
}
]
}
]
var data\u costByScn2=data3[0]。值

log（“data3val:，data_costByScn2）
您正在查找第一个数组元素的
值


var data_costByScn2 = data3[0].values

console.log("data3val: ", data_costByScn2)




var数据3=[
{
“密钥”：“K1204”，
“价值观”：[
{
“密钥”：“两者”，
“价值观”：[
{
“密钥”：1420070400000，
“价值”：27927.7349421797
}, 
{
“密钥”：1422748800000，
“价值”：27927.7349421797
}, 
{
“密钥”：1425168000000，
“价值”：27927.7349421797
}, 
{
“密钥”：1427846400000，
“价值”：27927.7349421797
}, 
{
“密钥”：143043840000，
“价值”：27927.7349421797
}, 
{
“密钥”：143311680000，
“价值”：27927.7349421797
}, 
{
“密钥”：1435708800000，
“价值”：27927.7349421797
}, 
{
“密钥”：143837200000，
“价值”：27927.734942179697
}, 
{
“密钥”：1441065600000，
“价值”：27927.7349421797
}, 
{
“密钥”：1443657600000，
“价值”：27927.7349421797
}, 
{
“密钥”：1446336000000，
“价值”：36929.2001421797
}, 
{
“密钥”：1448928000000，
“价值”：36929.2001421797
}, 
{
“密钥”：1451606400000，
“价值”：36929.2001421797
}, 
{
“密钥”：1454284800000，
“价值”：36929.200142179696
}, 
{
“密钥”：1456790400000，
“价值”：36929.2001421797
}, 
{
“密钥”：1459468800000，
“价值”：36929.200142179696
}, 
{
“密钥”：146206080000，
“价值”：36929.200142179696
}, 
{
“钥匙”：1464739200000，
“价值”：36929.200142179696
}, 
{
“钥匙”：146733120000，
“价值”：36929.2001421797
}, 
{
“密钥”：1470009600000，
“价值”：36929.2001421797
}, 
{
“密钥”：1472688000000，
“价值”：36929.2001421797
}, 
{
“密钥”：1475280000000，
“价值”：36929.2001421797
}, 
{
“钥匙”：1477958400000，
“价值”：36929.200142179696
}, 
{
“密钥”：148055040000，
“价值”：36929.200142179696
}, 
{
“密钥”：1483228800000，
“价值”：36929.200142179696