I'm actually not aware of any advancements being made in JS that haven't already been made on other platforms. For example, the JVM is much more performant than

I'm actually not aware of any advancements being made in JS that haven't already been made on other platforms. For example, the JVM is much more performant than Node, has more libraries, better build tools, better development environments and so on. I also think that other languages are more flexible and productive. JavaScript is a very crufty language with a lot of gotchas and odd behaviors. Dealing with these wastes developer time and makes large projects harder to maintain. I'd much rather work with a language like ClojureScript and have the benefit of using the same language on the client and the server, while using a well thought out language. Writing apps in ClojureScript is far more pleasant than with JavaScript. There are also fantastic libraries available such as Reagent (http://holmsand.github.io/reagent/ http://holmsand.github.io/reagent/) and Om (https://github.com/swannodette/om https://github.com/swannodette/om).