在所有JSON对象的键之前添加名称空间 [英] Prepending namespace to all of a JSON object's Keys

问题描述

我不太了解JavaScript，但这是我要做的事情的摘要.

I'm not overly knowledgeable in JavaScript, but here's the rundown on what I'm trying to do.

我有一个由外部源准备的JSON对象.我按原样使用该Object字符串连接到我准备的另一个JSON对象，但是问题是每个键都必须在它们前面有一个名称空间缩写.

I have a JSON object that is prepared by an external source. I'm using that Object as-is to string on to another JSON object that I have prepared, but the problem is that each of the keys need to have a namespace abbreviation in front of them.

这就是我所拥有的:

obj1 = {
  "key1": "value",
  "key2": "value",
  "key3": "value",
  "key4": {
   "subkey1": "value",
   "subkey2": "value"
  }
}

我希望它变成什么:

obj1 = {
  "ns:key1": "value",
  "ns:key2": "value",
  "ns:key3": "value",
  "ns:key4": {
   "ns:subkey1": "value",
   "ns:subkey2": "value"
  }
}

这应该动态完成，因为这将用于同一项目的多个不同方面.因此，我希望简单地使用一个函数，将"obj1"传递给它，并使其吐出转换后的JSON对象，无论我给它什么.

This should be done dynamically, since this will be used for several different aspects of the same project. So I'm hoping to simply have a function that I pass 'obj1' into and have it spit out the converted JSON Object, no matter what I give it.

最简单的方法是什么?同样，我不习惯JavaScript，因此欢迎您举一些例子.

What would the easiest way to go about this be? Again, I'm not used to JavaScript, so examples are welcome.

PS.CoffeeScript解决方案也是可以接受的.我基本上是用JS编写出来的，然后使用js2coffee.org进行转换.

PS. A CoffeeScript solution is also acceptable. I'm basically writing it out in JS then converting this using js2coffee.org.

推荐答案

尝试检查代码以查看是否错过了任何未处理的案例.我想您必须先检查一些事情，然后再使用它...

Try to check the code to see if I missed any unhandled cases. You have to check for a few things before you use it I guess...

var obj1 = {
  "key1": "value",
  "key2": "value",
  "key3": "value",
  "key4": {
   "subkey1": "value",
   "subkey2": "value"
  }
};

var rename = function(obj, prefix){

    if(typeof obj !== 'object' || !obj){
        return false;    // check the obj argument somehow
    }

    var keys = Object.keys(obj),
        keysLen = keys.length,
        prefix = prefix || '';

    for(var i=0; i<keysLen ;i++){

        obj[prefix+keys[i]] = obj[keys[i]];
        if(typeof obj[keys[i]]=== 'object'){
            rename(obj[prefix+keys[i]],prefix);
        }
        delete obj[keys[i]];
    }

    return obj;
};

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