function parseData(str, callback) {

   function recursiveFunction(obj) {
       var keysArray = Object.keys(obj);

       for (var i = 0; i < keysArray.length; i++) {
           var key = keysArray[i];
           var value = obj[key];

           if (value === Object(value)) {
               recursiveFunction(value);
           }
           else {
               if (key == 'title') {
                   var title = value;
               }

               if (key == 'extract') {
                   var extract = value.replace(/(rn|n|r)/gm," ");
                   callback(null, JSON.stringify({title: title, text: extract}));
               }
           }
       }
   }

   recursiveFunction(str, callback(null, JSON.stringify({title: title, text: extract})));
};

/parseData.js:29
   recursiveFunction(str, callback(null, JSON.stringify({title: title, text: extract})));
                                                            ^
ReferenceError: title is not defined