Typed Clojure prevents Null Pointer Exceptions (frenchy64.github.io)

If you want typesafe functional programming on the JVM, why not just use Scala?

cowcatcher, you're hellbanned. As for your question:

"If you want typesafe functional programming on the JVM, why not just use Scala?"

Well, because some people like Clojure and Scala doesn't have enough parentheses.