tableView data source empty in viewDidLoad() - Swift

Question

Below is my ViewController code. The println in GetRequest prints the correct data that it receives from the HTTP GET request. At this point, tableData has 10 key-value pair

Answer 1

The problem is that GetRequest runs asynchronously. So you have to reloadData inside the completionHandler of dataTaskWithURL:

let task = session.dataTaskWithURL(url, completionHandler: {data, response, error -> Void in

    // do all of your existing stuff here

    dispatch_async(dispatch_get_main_queue()) {
        self.tableData = LatestWaitTimes
        self.tableView.reloadData()
    }
})
task.resume()

You can remove the reloadData from within viewDidLoad.