How to parse JSON String using jQuery while do not know the exactly keys of it?

Question

I'm now writing a test html program to check well-formed JSON data send by web socket, and i'm stuck here:

parsing JSON String while I do not know the exactly keys of it.

jQuery.parseJSON() can return the resulting JavaScript object, but I need to know each key to access the data.

I may not make my question clearified, sorry 'bout that.What I want is to make data more readable instead of a long JSON String.

This is a chicken and egg problem. What do you want us to tell you? If you need to know the keys, then you need to know the keys; otherwise, why do you need to know the keys? If you just want to know whether the JSON is strictly well-formed, well parseJSON may throw an exception if it's not (no word yet on what "may" means here). — Lightness Races in Orbit
– Lightness Races in Orbit, Commented Jan 15, 2013 at 3:26
I may not make my question clearified, sorry 'bout that.What I want is to make data more readable instead of a long JSON String. — kiwi
– kiwi, Commented Jan 15, 2013 at 3:29

MyStream · Accepted Answer · 2013-02-05 02:54:28Z

4

for(i in json) {
 console.log(i);
 console.log(json[i]);
}

Is this construct of any use?

As others have pointed out, you could use the jQuery .each() to iterate over it as well.

answered Jan 15, 2013 at 3:26

MyStream

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2 Comments

What if it's a Nested JSON String?

You can probably test what the first character is "{" or otherwise and make a first approximation guess about whether to do another loop?

Arun P Johny · Accepted Answer · 2013-01-15 03:30:52Z

2

You can also use the jQuery.each() to iterate throw all the keys in the json object.

Ex:

$.each({'key':'value'}, function(i, v) { 
    console.log(i, v)
});

answered Jan 15, 2013 at 3:30

Arun P Johny

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