I find the Haskell, SML, and OCaml repls very nice to use as a exploratory tools. It's made all the nicer due to the types, because you can quickly iterate on g

I find the Haskell, SML, and OCaml repls very nice to use as a exploratory tools. It's made all the nicer due to the types, because you can quickly iterate on gluing things together in different ways. It's something I miss with Rust, although there is progress being made to implement one.