地图数组基于独立的对象，深入到对象 [英] Map array to object with depth based on separate object

问题描述

我有一个数据数组（在现实中解析CSV从MySQL转储头）

I have an array of data (in reality a parsed CSV dump from MySQL with headers)

['adam', 'smith', 'honda', 'civic']

我有一个对象，它定义数据的阵列应该如何看起来像一个对象。

I have an object which defines how that array of data should look as an object.

{
  first_name : 0,
  last_name: 1,
  car : {
    make: 2,
    model: 3
  }
}

这个对象可以有嵌套值的任何深度。这也是动态生成。

This object could have any depth of nested values. It is also dynamically generated.

我的问题是：我如何从数组对象投的价值观？

My question is: how do I cast the values from the array to the object?

（我试图让在对象的递归函数循环，目前抢数组，但保持在墙壁上运行。如果我得到它的工作，我将它张贴，但我怀疑有做到这一点更简单的方法。 ）

(I am trying to make a recursive function loop over the object and grab the array currently but keep running in to walls. If I get it to work I will post it, but I suspect there's an easier way to accomplish this.)

推荐答案

下面是做到这一点的方法之一。它的工作原理为您presented的情况。

Here is one way to do it. It works for the case you presented.

提琴： http://jsfiddle.net/wy0doL5d/8/

var arr = ['adam', 'smith', 'honda', 'civic']

var obj = {
  first_name : 0,
  last_name: 1,
  car : {
    make: 2,
    model: 3
  }
}

function mapObj(o, a)
{
    Object.keys(o).forEach(function(key){
        var objType = typeof(o[key]);
        if(objType === "object")
        {
            mapObj(o[key], a);
        }
        else
        {
            o[key] = a[o[key]];
        }
    });

}

mapObj(obj, arr);

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