How would you combing all the URLs in a single array?

[ackoi]

I know it's a bit of a newbie question, but I really couldn't wrap my head around it.

[wilksy]

clone the code. Look for the 'for' loop containing the callback and replace with a single callback containing the results.

newResults.forEach(function(result) {
  **callback(null, result['url'], result);**
});