[TazeTSchnitzel]

I quite like Haste for Haskell to JS compilation. Its output isn't too bloated.

[codygman]

Purescript (while not quite Haskell) also has very small output and is strict by default. There's also the very fun, informative, and productive "Purescript By Example"[0] book.

0: https://leanpub.com/purescript/read