From a strictly technical perspective (that is, excluding otherwise important factors like hiring) Elm is one of the best solutions for web UI development. The

From a strictly technical perspective (that is, excluding otherwise important factors like hiring) Elm is one of the best solutions for web UI development. The language is small (compared to Haskell for example), it pretty much enforces a sane approach to state management and componentalization, frees you from a whole class of JavaScript bugs including runtime exceptions and is very fast. The fact that it's functional just makes it more attractive to developers that are already confortable with or committed to functional languages such as Elixir.