jQuery.stringify() utility

/**

* converted stringify() to jQuery plugin.

* serializes a simple object to a JSON formatted string.

* Note: stringify() is different from jQuery.serialize() which URLEncodes form elements

* UPDATES:

* Added a fix to skip over Object.prototype members added by the prototype.js library

* USAGE:

* jQuery.ajax({

* data : {serialized_object : jQuery.stringify (JSON_Object)},

* success : function (data) {

* }

* });

* CREDITS: http://blogs.sitepointstatic.com/examples/tech/json-serialization/json-serialization.js

jQuery.extend({

stringify : function stringify(obj) {

var t = typeof (obj);

if (t != "object" || obj === null) {

// simple data type

if (t == "string") obj = '"' + obj + '"';

return String(obj);

} else {

// recurse array or object

var n, v, json = [], arr = (obj && obj.constructor == Array);

for (n in obj) {

v = obj[n];

t = typeof(v);

if (obj.hasOwnProperty(n)) {

if (t == "string") v = '"' + v + '"'; else if (t == "object" && v !== null) v = jQuery.stringify(v);

json.push((arr ? "" : '"' + n + '":') + String(v));

}

return (arr ? "[" : "{") + String(json) + (arr ? "]" : "}");

}

});

pedrochaves commented 2012-03-01

Hint:
You could optimize this method to use the native JSON.stringify method, so that your recursive method would only be executed on IE6/7, like this:
This way, your code would only be executed on older browsers, working as a fallback :)

jQuery.extend({
    stringify  : function stringify(obj) {         
        if ("JSON" in window) {
            return JSON.stringify(obj);
        }

        var t = typeof (obj);
        if (t != "object" || obj === null) {
            // simple data type
            if (t == "string") obj = '"' + obj + '"';

            return String(obj);
        } else {
            // recurse array or object
            var n, v, json = [], arr = (obj && obj.constructor == Array);

            for (n in obj) {
                v = obj[n];
                t = typeof(v);
                if (obj.hasOwnProperty(n)) {
                    if (t == "string") {
                        v = '"' + v + '"';
                    } else if (t == "object" && v !== null){
                        v = jQuery.stringify(v);
                    }

                    json.push((arr ? "" : '"' + n + '":') + String(v));
                }
            }

            return (arr ? "[" : "{") + String(json) + (arr ? "]" : "}");
        }
    }
});

Braunson commented 2012-09-19

Thanks, to both of you! Super handy!

GertjanDM commented 2012-10-03

I'm about to use this.. RIGHT NOW! :D THANKS!

giamfreeg commented 2012-10-17

Good.

mcgarciabr commented 2012-10-24

Thanks both of you !!! Very good help.

epox-spb commented 2013-01-22

Doesn't escape double qoutes (") :(((.

So JSON.stringify( { Password: 'ab"c' } ) produces good JSON string: '{"Password":"ab\"c"},
but the jQuery.stringify( { Password: 'ab"c' } ) in IE6-7 or in IE8+ compatibility mode leads to a broken unescaped string: '{"Password":"ab"c"}'

public chicagoworks / jQuery.stringify.js Last active 2014-04-11

public

chicagoworks / jQuery.stringify.js

Last active 2014-04-11