Quick and Dirty JSON object for any small app

JSON.js

// JSON detection
var JSON = JSON || {};

// implement JSON.stringify serialization
JSON.stringify = JSON.stringify || function (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 (t == "string") v = '"'+v+'"';
        else if (t == "object" && v !== null) v = JSON.stringify(v);
        json.push((arr ? "" : '"' + n + '":') + String(v));
      }
      return (arr ? "[" : "{") + String(json) + (arr ? "]" : "}");
    }
};
 
// implement JSON.parse de-serialization
JSON.parse = JSON.parse || function (str) {
    if (str === "") str = '""';
      eval("var p=" + str + ";");
      return p;
};

I don't know who to give credit for this little JSON alternative, but I found it used on a coding sample at: http://ipinfodb.com/ip_location_api_json.php