javascript - Recursive callbacks -

need little trying breadcrumb builder working - it's recursive fetch parent categories should return array of entries. not quite working , brain fried.... returns last entry.

var walk = function(c, done) {   var results = [];   category.findbyid(c).exec(function(err, cat) {     if(cat) {       results.push({ title: cat.title, id: cat.id});       if(cat.parent) {         walk(cat.parent, function(err, res) {           results = results.concat(res);         });       }       return done(null, results);     }     done(results);   }); };  walk(product.categories[0].id, function(err, results) { //  if (err) console.log (err);   console.log(results); }); 

how node-fibers? try this.

good example link : mongo-model example

and method synchronize util written coffee-script