Fetch an image from the web

fetch-image.swift

let url = NSURL(string: "http://www.haskell.org/happy/Happy.gif")
        
        let urlRequest = NSURLRequest(URL: url)
        NSURLConnection.sendAsynchronousRequest(urlRequest, queue: NSOperationQueue.mainQueue(),
            completionHandler: {
                response, data, error in
                
                if error != nil {
                    println("There was an error")
                } else {
                    
                    let image = UIImage(data: data)
                    self.someImage.image = image
                }
                
            })