>>Which is what? Scala? Haskell? OCaml? F#? Typed Racket? Idris?
These days Java works just fine. Why use anything else, that neither has dev mind share nor the library ecosystem remotely the same as Java.
These days Java works just fine. Why use anything else, that neither has dev mind share nor the library ecosystem remotely the same as Java.
For me, clojure provides a simple-to-use API, high-level functional abstractions, an instantaneous feedback loop, access to a battle-tested JVM ecosystem, and more than fast enough performance. This is its killer combination, in my opinion. The immutable-by-default data structures are also an underappreciated boon for writing multi-threaded code without breaking a sweat.
This actually one of the things I like about Kotlin - many of it features are similar in effect to pre-generated boilerplate - but it lives as part of the run-time, not in your code.
On the flip side, a new version of Kotlin could potentially introduce/reveal bugs - but at least you don't have to deal with four different generations of outdated boilerplate when diving into old code...
Half tongue-in-cheek, half serious: not having Java's dev mindshare is actually a benefit.