javascript - How to make an object into text in js

Question

Here is a js object that represents the file system in the command line os project I'm working on:

var obj = {
        "1": {
            "hi": "hi"
        }, 
        "2": {
            "bye": "bye"
         }
    };
var currentDir = obj["1"]["hi"];
console.log(currentDir);

When I run this, I get

"hi"

How do I get this to appear as

/1/hi/

I need to get the "file path" of the currently select object.

Answer 1

Make some kind of lookup function

var lookup = (function (o) {
    return function lookup() {
        var i, e = o, s = '';
        for (i = 0; i < arguments.length; ++i) {
            s += '/' + arguments[i];
            if (!e.hasOwnProperty(arguments[i]))
                throw "PathNotFoundError: " + s;
            e = e[arguments[i]];
        }
        return {path: s, value: e};
    }
}(obj));

And using it

console.log(lookup('1', 'hi').path); // "/1/hi"