How to convert javascript object into json without using "JSON.stringify" method?

Question

Is there any way to convert javascript object into JSON.

I can not use

JSON.stringify(<obj>)

Because there is no stringify method in the JSON object in the following link.

Example:

var obj = {'x':1,'y':2}

Now if I'll run

console.log(JSON.stringify(obj));

Then I'm getting this error.

error: TypeError: Object # has no method 'stringify'

No repo, http://jsfiddle.net/nXQxC/ – Praveen Mar 25 '14 at 08:48 — Praveen, Mar 25 '14 at 08:48
Fiddle works fine in Chrome – Starscream1984 Mar 25 '14 at 08:53 — Starscream1984, Mar 25 '14 at 08:53

score 2 · Accepted Answer · answered Mar 25 '14 at 08:54

2

Well, the website overrides the actual JSON object with their own.

> JSON
> Object {toStr: function, quote: function}

Try using JSON.toStr(object)

answered Mar 25 '14 at 08:54

Umur Kontacı

35,403
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Thanks Man. You are observant! – Dixit Singla Mar 25 '14 at 09:00

Gabriele Lana · Answer 2 · 2014-03-25T10:38:46.907

It appears that some code/library has overridden the global JSON object. JSON.toStr is fine but if you want the original JSON objet back you can always create an invisible frame and use its global objects

OriginalJSON = (function() {
  var e = document.createElement('frame');
  e.style.display = 'none';
  var f = document.body.appendChild(e);
  return f.contentWindow.JSON;
})()

OriginalJSON.stringify({a: 1})

This is a technique that works for all global objects that has been overridden for some reason. As an alternative you can always copy only the stringify method

JSON.stringify = (function() {
  var e = document.createElement('frame');
  e.style.display = 'none';
  var f = document.body.appendChild(e);
  return f.contentWindow.JSON.stringify;
})()

// Now JSON.stringify is back
JSON.stringify({a: 1})

I really appreciate this explanative answer, because with this method it`s possible to solve another overrides. Thanks. — ZLNK, Apr 24 '19 at 20:28

score 1 · Answer 3 · answered Mar 25 '14 at 08:49

1

stringify method depends on your browser.

So if you cannot find JSON.stringify(), maybe the browser you're using is not compatible to JSON API, you could include this library to make it there:

json2.js

answered Mar 25 '14 at 08:49

Colin Su

4,613
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Browser supports because I can use it in other sites! – Dixit Singla Mar 25 '14 at 08:51
But I'm curious about your situation, could you provide any sample to see why only your site JSON got blocked? – Colin Su Mar 25 '14 at 08:52

score 0 · Answer 4 · answered Mar 25 '14 at 08:50

0

Consider using external library, for example JSON 3 is a good choice.

answered Mar 25 '14 at 08:50

Ilya I

1,282
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How to convert javascript object into json without using "JSON.stringify" method?

4 Answers4