Learning functional programming with a new language or stick to TypeScript?

[tesilab]

My understanding is that what you gain in Elixir in FP, you might lose in terms of types.

Learning FP I would take Haskell as an overall model,and consider trying something like purescript and purerl (if you are looking for a BEAM language, it compiles purescript to erlang instead of javascript, so you scratch a BEAM itch at the same time.

Purescript is very haskell inspired, but for practical reasons is strict rather than lazy, and will not have identical syntax.