使用Javascript / JQuery在JSON对象中的差异 [英] Difference in JSON objects using Javascript/JQuery

问题描述

我在Javascript中有两个JSON对象，除了数值之外都是相同的。它看起来像这样：

I have two JSON objects in Javascript, identical except for the numerical values. It looks like this:

var data = {
  "eth0":{"Tx":"4136675","Rx":"13232319"},
  "eth1":{"Tx":"4","Rx":"0"},
  "lo":{"Tx":"471290","Rx":"471290"}
}

var old = {
  "eth0":{"Tx":"4136575","Rx":"13232219"},
  "eth1":{"Tx":"4","Rx":"0"},
  "lo":{"Tx":"471290","Rx":"471290"}
}

一个名为data的对象具有当前值，另一个名为old的对象从1秒前开始具有相同的值。我想在值中输出只有 change 的JSON对象，这样我就可以计算网络接口上的数据吞吐量。

One object called "data" has the current values, another object called "old" has the same values from 1 second ago. I'd like to output a JSON object with only the change in values so I can calculate data throughput on the network interfaces.

var throughput = {
  "eth0":{"Tx":"100","Rx":"100"},
  "eth1":{"Tx":"0","Rx":"0"},
  "lo":{"Tx":"0","Rx":"0"}
}

我不知道如何遍历JSON数据 - 它可能适用于任意数量的接口。

I'm not sure how to go about traversing the JSON data - it could be for any number of interfaces.

任何人都可以借给我一个手吗？提前致谢

Can anyone please lend me a hand? Thanks in advance

推荐答案

您可以遍历父对象和子对象属性：

You can iterate through the parent and child object properties:

var diff = {};
for(var p in data){
  if (old.hasOwnProperty(p) && typeof(data[p]) == 'object'){
    diff[p] = {};
    for(var i in data[p]){
      if (old[p].hasOwnProperty(i)){
        diff[p][i] = data[p][i] - old[p][i];
      }
    }
  }
}

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