title: How to return a custom array of objects in a function in swift
body: <p>I can't able to return a custom array of objects from a function in swift. I am always getting <code>[(custon object)] is not convertable to '()'</code> error message. I think i'm violating some swift protocol. Below is my code. Please let me know which i'm violating.</p>
  
  <pre><code>import Foundation
  
  class DataSet {
      var settings:Settings!
      var service:PostService!
      var currentBrand:Brand!
  
      init(){
          self.settings = Settings()
          self.service = PostService()
      }
  
      func loadComments(id:Int) -&gt; [CommentsList]{
          service.apiCallToGet(settings.getComments(id), {
              (response) in
              var commentsList = [CommentsList]()
              if let data = response["data"] as? NSDictionary {
                  if let comments = data["comments"] as? NSArray{
                      for item in comments {
                          if let comment = item as? NSDictionary{
                              var rating = comment["rating"]! as Int
                              var name = comment["device"]!["username"]! as NSString
                              var text = comment["text"]! as NSString
                              var Obj_comment = CommentsList(rating: rating, name: name, text: text)
                              commentsList.append(Obj_comment)
                          }
                      }
                  }
              }
  
              return commentsList //This line shows error as :  "[(CommentsList)] is not convertable to '()'"
          })
      }
  }
  </code></pre>