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.

Your code logs `"hi"` when I run it, not `"[object Object]"`. — gen_Eric, Jun 26 '13 at 14:31
THat doesn't make any sense. Javascript does not record which properties refer to a value. — SLaks, Jun 26 '13 at 14:31
So, what *exactly* are you trying to do? What's the issue here? — gen_Eric, Jun 26 '13 at 14:34
@Chase Welcome to StackOverflow. It's not very clear what you're trying to do, because **it doesn't seem like you have an understanding of the language constructs** that you're using. I recommend doing some reading about javascript objects and arrays, and the accessors for each. When you have a better understanding, come back and revise your question. — xdumaine, Jun 26 '13 at 14:34
I'm sorry this i s poor wording on my part, I need to "get the file path" of the object — Chase, Jun 26 '13 at 14:36
@Chase: That is fundamentally impossible. The same string can be referenced by multiple objects. You need to re-think your design. — SLaks, Jun 26 '13 at 14:37
@Chase, as you're entering `"1"` and `"hi"` manually, why can't you just do `"1" + "/" + "hi" + "/"`? — Paul S., Jun 26 '13 at 14:39
Don't you already know the path when you address the object? do something like `console.log(firstIndex + '/' + secondIndex + '/ + obj[firstIndex][secondIndex]);` — Yotam Omer, Jun 26 '13 at 14:43
that's the idea. I don't know how to split the currentDir into those parts. — Chase, Jun 26 '13 at 14:44
@Chase: You can't. Where are `"1"` and `"hi"` coming from? Once you do `obj["1"]`, you can't go back and get the key (`"1"`). — gen_Eric, Jun 26 '13 at 14:49

score 3 · Accepted Answer · answered Jun 26 '13 at 14:46

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"

score 0 · Answer 2 · answered Jun 26 '13 at 14:39

0

Your code returns "hi" So does var currentDir = obj[1].hi;

answered Jun 26 '13 at 14:39

Alex Marinov

191
1
5

I need to get the path of objects to the current object – Chase Jun 26 '13 at 14:45

score 0 · Answer 3 · answered Jun 26 '13 at 14:44

0

You already know the path when you access your object. do something like this:

console.log(firstIndex + '/' + secondIndex + '/ + obj[firstIndex][secondIndex]);

you can use this in for loops, each loops while etc.. or by direct access like your example.

answered Jun 26 '13 at 14:44

Yotam Omer

15,310
11
62
65

How to make an object into text in js

3 Answers3

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