OCaml offers a great REPL-experience in the form of `coretop`. It's got auto-complete that makes exploration awesome/easy. It feels very much like IPython. O

OCaml offers a great REPL-experience in the form of `coretop`. It's got auto-complete that makes exploration awesome/easy. It feels very much like IPython. OCaml installations tend to come with both a native compiler and a byte-code compiler/runtime, so you really get the best of both worlds there - minus some occasional hiccups in the build process.