从令人兴奋的一个节点j建立一个json

Question

我现在看起来像这样的JSON

      {
        "_id": "5371f7171b27d11418bd9b46",
        "name": "a",
        "length": 14
      },
      {
        "_id": "5371f7171b27d1143bd9b46",
        "name": "ab",
        "length": 3
      }

我试图让它看起来像这个，

5371f7171b27d11418bd9b46: {
    name: "a",
    length: 14,
    toc: [] // in the future it will be in the json I get.
},
5371f7171b27d1143bd9b46: {
    name: "ab",
    length: 3,
    toc: []
}

这就是我试过的，

var arrenged = {};
_.forEach(result, function(item) {
    arrenged[item._id] = arrenged[item._id] || {};
    arrenged[item._id][item.name] = arrenged[item._id][item.name] || {};
    arrenged[item._id][item.name].push(item);
    arrenged[item._id]['direction'] = 'rtl';
    arrenged[item._id]['toc'] = "[]";
});
res.jsonp(arrenged);

但我得到TypeError：对象＃没有方法＆＃39;推送＆＃39;，不确定我做错了什么。 谢谢！

Answer 1

可以这样做：

var newObject = {};
for (var i = 0; i < data.length; i++) { //data is your current array of objects
    var id = data[i]._id;
    newObject[id] = {};
    newObject[id].name = data[i].name;
    newObject[id].length = data[i].length;
    newObject[id].toc = [];
}

小提琴：http://jsfiddle.net/KWjb3/