Question

Is it possible for a json string to include only square brackets ? For ex. :

[["state","accepted"],["r_by_uid",1]]

I get unexpected character error from parsing that string … (long time since i worked on this script and i think it worked before ) .

Parsing the json string will allways make an object from the string ? or is it possible to parse the string into an array ?

Basically i just want to parse the string into an array , not an object .
I googled some examples but couldnt find any example that is using only square brackets.

As requested here is the tag that holds the json string :

<button data-fproc='[["state","accepted"],["r_by_uid","1"]]' class="request_state_button">

Answer 1

Curly brackets are not strictly necessary.

[["state","accepted"],["r_by_uid",1]] is valid JSON.

A JSON text can be an object or an array.

See http://json.org/ and the JSON Grammar section in https://www.ietf.org/rfc/rfc4627.txt

You can validate your JSON at http://jsonlint.com/

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In Javascript, JSON.parse() returns an array:

JSON.parse('[["state","accepted"],["r_by_uid",1]]')
// result [["state", "accepted"], ["r_by_uid", 1]]

Notice that Arrays are also objects in Javascript.

It works with jQuery.parseJSON() too:

jQuery.parseJSON('[["state","accepted"],["r_by_uid",1]]')
// result [["state", "accepted"], ["r_by_uid", 1]]