There are thousands of programming languages, so why use JavaFX Script? Two good reasons are: ubiquitous delivery, and rapid development of graphical applications. JavaFX is built on the Java platform, which is available on everything from cell phones to supercomputers. JavaFX Script is designed so that the developer can express their desired results succinctly and simply. Where most programming languages require the developer to describe what they want imperatively (tell me how to achieve the effect you want), JavaFX Script allows you to instead express many things declaratively (tell me what you want, and I'll figure out how to make it happen). Declarative programming is particularly powerful in expressing the interactive relationships between graphical components, greatly simplifing the code and the development process.