javascript - 评估多维对象中的键值

Question

我有一个多维对象，如下所示:

{
 "links": [{"source":"58","target":"john","total":"95"},
           {"source":"60","target":"mark","total":"80"}],
 "nodes": 
          [{"name":"john"}, {"name":"mark"}, {"name":"rose"}]
}

我正在尝试评估“链接”中“总计”的值。我可以在一维数组中执行此操作，如下所示:

for (var i = 0; i < data.length; i++) {
    for (var key in data[i]) {
        if (!isNaN(data[i][key])) {
            data[i][key] = +data[i][key];
        }
    }
};

但我无法弄清楚如何在二维中执行此操作(特别是通过名称调用键“total”的值)。

有人能让我走上正轨吗？谢谢!

Answer 1

从你的数组的结构是这样的原理出发，你可以迭代键和值:

var obj = {
 "links": [{"source":"58","target":"john","total":"95"},
           {"source":"60","target":"mark","total":"80"}],
 "nodes": 
          [{"name":"john"}, {"name":"mark"}, {"name":"rose"}]
};

for (var key in obj){
  obj[key].forEach(function(item){
    for(var subkey in item){
      if (subkey == 'total')
        console.log(item[subkey]);
    };
  });
};