JSON Stringify function for jQuery

jquery.stringifyjson.js

/*!
 * jQuery JSON Stringify
 * see also http://www.json.org/
 *
 * Copyright: José Almeida (http://joseafga.com.br)
 * License: MIT (http://opensource.org/licenses/mit-license.php)
 * 
 * Based on: Mootools JSON.encode function (http://mootools.net/) Copyright (c) 2006-2010 Valerio Proietti (http://mad4milk.net/)
 *  
 * Syntax:
 *  $.stringifyJSON(mixed);
 */

var special = {'\b': '\\b', '\t': '\\t', '\n': '\\n', '\f': '\\f', '\r': '\\r', '"' : '\\"', '\\': '\\\\'}, 
	escape = function(chr){ return special[chr] || '\\u' + ('0000' + chr.charCodeAt(0).toString(16)).slice(-4); };

jQuery.stringifyJSON = function(data){
	// use native if exists
	if (window.JSON && window.JSON.stringify) 
		return window.JSON.stringify(data);
	
	switch (jQuery.type(data)){
		case 'string':
			return '"' + data.replace(/[\x00-\x1f\\"]/g, escape) + '"';
		case 'array':
			return '[' + jQuery.map(data, jQuery.stringifyJSON) + ']';
		case 'object':
			var string = [];
			jQuery.each(data, function(key, val){
				var json = jQuery.stringifyJSON(val);
				if (json) 
					string.push(jQuery.stringifyJSON(key) + ':' + json);
			});
			return '{' + string + '}';
		case 'number': 
		case 'boolean': 
			return '' + data;
		case 'undefined':
		case 'null': 
			return 'null';
	}
	
	return data;
};

jquery.stringifyjson.min.js

/*!
 * jQuery JSON Stringify
 *
 * Copyright: José Almeida (http://joseafga.com.br)
 * License: MIT
 * 
 * Based on: Mootools JSON.encode function (http://mootools.net/) Copyright 2006-2010 Valerio Proietti (http://mad4milk.net/)
 */
var special={"\b":"\\b","\t":"\\t","\n":"\\n","\f":"\\f","\r":"\\r",'"':'\\"',"\\":"\\\\"},escape=function(a){return special[a]||"\\u"+("0000"+a.charCodeAt(0).toString(16)).slice(-4);};jQuery.stringifyJSON=function(b){if(window.JSON&&window.JSON.stringify){return window.JSON.stringify(b);}switch(jQuery.type(b)){case"string":return'"'+b.replace(/[\x00-\x1f\\"]/g,escape)+'"';case"array":return"["+jQuery.map(b,jQuery.stringifyJSON)+"]";case"object":var a=[];jQuery.each(b,function(d,e){var c=jQuery.stringifyJSON(e);if(c){a.push(jQuery.stringifyJSON(d)+":"+c);}});return"{"+a+"}";case"number":case"boolean":return""+b;case"undefined":case"null":return"null";}return b;};