3 ms·

What's the editor support like? TypeScript has industry-leading editor integration with insanely fast response times. I'm always wary of new languages for this

• dmit 6y ago
  Reason support in VSCode is very solid.
  • davesnx 6y ago
    That's not even true. It's still very early days for Reason VSCode tooling, since you might find a few extensions that support most of the cases but lacks a few key features that you might be used to while writing JS/TS.
• bgorman 6y ago
  As far as editor support, I have used reason-language-server (https://github.com/jaredly/reason-language-server https://github.com/jaredly/reason-language-server) with Emacs (current), Vim and VSCode (provided through reason-vscode plugin). I used to use IntelliJ, and there was a solid plugin for that as well. ReasonML's compiler is way faster than Typescript's.
  • _bxg1 6y ago
    There's a difference between "the compiler is faster when run at the CLI" and "the language server is faster". A good language server remains responsive by doing quick, partial compilations on just the section that changed. A bad language server just wraps the standard compiler and re-runs the whole thing when a file is saved. The latter will eat up CPU/RAM and make for a frustrating dev experience, no matter how relatively-fast the base compilation time is.
    • yawaramin 6y ago
      OCaml (the Reason compiler) has historically had excellent (and fast) editor support tooling: Merlin.[1] That is now being packaged up as a language server (i.e., LSP).[2] Once you try a Merlin-based editor addon, everything else will seem dog-slow. [1] https://github.com/ocaml/merlin https://github.com/ocaml/merlin [2] https://github.com/ocamllabs/vscode-ocaml-platform https://github.com/ocamllabs/vscode-ocaml-platform
      • andrepd 6y ago
        True, I've been spoiled by merlin ;)
    • thegreatpeter 6y ago
      1. The language server, reason-language-server is written in native Reason and is _very_ fast. In terms of compiler speeds, Draftbit has 1,000 ReasonML components and about 100 TypeScript files. I can safely build AND type the entire ReasonML project before TypeScript returns the type results in watch mode.
    • Scarbutt 6y ago
      I'll take super fast compilation first ;)
    • spyder81 6y ago
      The standard compiler can do a cold compile of a single file in milliseconds. When the compiler is that fast you _can_ just wrap it up and it'll still be faster than TypeScript. But to answer your actual question: The current standard (reason-language-server) does simply wrap the compiler, and it's more than fast enough, but the community is working on a new merlin-based language server (ocaml-lsp) which does support partial compilation.
• shermanmccoy 6y ago
  I use the Reason Language Server and eglot in emacs on a linux system and it is very snappy. Reason-cli gives you code formatting also.