title: Could not cast value of type 'NSNull' (0x10aa1b600) to 'NSString' (0x10b4dab48)
body: <p>My json has googleplus links of restaurants and it shows null if restaurant does not have any googleplus link But I get error of as mentioned above. </p>
  
  <pre><code>if dict["googlepluslink"] != nil
  {
      self.googlepluslink.append((dict["googlepluslink"] as? String)!)
  }
  else
  {
      self.googlepluslink.append(("-" as? String)!)
  }
  </code></pre>
  
  <blockquote>
    <p>Could not cast value of type 'NSNull' (0x10aa1b600) to 'NSString' (0x10b4dab48)</p>
  </blockquote>