As someone who has lightly used Haskell and quite heavily used ocaml:
- Pragmatism: The ocaml community has a stronger focus on practical real projects. This is shown by the kind of packages available on the ecosystem and the way those packages are presented. (A number of Haskell packages I've tried to use often seen to be primarily intellectual pursuit with little documentation on actually using them).
- Simplicity: Haskell does have some amazing features, but it has so many different ways to do things, so many compiler flags, code can look vastly different from one codebase to another. It's kind of the c++ of FP. Ocaml is definitely more cohesive in its approach.
Tooling: last I used Haskell the whole ecosystem was pretty rough, with two package managers and a lot of complexity in just setting up a project. Ocaml is not at the level of rust or other modern languages, but is definitely a stop above I'd say.
- Pragmatism: The ocaml community has a stronger focus on practical real projects. This is shown by the kind of packages available on the ecosystem and the way those packages are presented. (A number of Haskell packages I've tried to use often seen to be primarily intellectual pursuit with little documentation on actually using them).
- Simplicity: Haskell does have some amazing features, but it has so many different ways to do things, so many compiler flags, code can look vastly different from one codebase to another. It's kind of the c++ of FP. Ocaml is definitely more cohesive in its approach.
Tooling: last I used Haskell the whole ecosystem was pretty rough, with two package managers and a lot of complexity in just setting up a project. Ocaml is not at the level of rust or other modern languages, but is definitely a stop above I'd say.