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Ruby 3 supports type signatures: https://github.com/ruby/rbs https://github.com/ruby/rbs

• Gigachad 4y ago
  The rails creator DHH has indicated that rails would “absolutely not” be getting type support.
  • gregors 4y ago
    That's absolutely the correct call for rails.
    • Gigachad 4y ago
      It's the main reason I see Rails not lasting another decade. All the Rails apps I have been working on become almost unmanageable after 6+ years because keeping things updated on an untyped system is borderline impossible to do safely.
      • atmosx 4y ago
        There are solutions like sorbet[^1] and sorbet-rails[^2]. Have you tried them? [^1]: https://sorbet.org/ https://sorbet.org/ [^2]: https://github.com/chanzuckerberg/sorbet-rails https://github.com/chanzuckerberg/sorbet-rails
      • chris12321 4y ago
        Just because Rails is untyped doesn't mean you can add type definitions to your own code within a rails application.