As this book deals with web application programming, we won't go into much more detail on native application UIs in this chapter. Instead, we will showcase some simple tools and techniques that can help with async tasks in web applications.
The tools we are about to cover offer some simple solutions that are only suitable for very small applications. They may not always be reliable, but sometimes they can be good enough. If you are after a more robust solution, then you should read the later chapters on asynchronous programming and distributed architecture.
