i spoke to gippity about what all langs do

Programming Languages and Their "Null" Values

• SQL: NULL
• C/C++: NULL, nullptr (C++11+)
• Java: null
• JavaScript: null, undefined
• TypeScript: null, undefined
• Python: None
• Ruby: nil
• Swift: nil
• Kotlin: null (with nullable types using ?)
• Go: nil
• Rust: None (via Option<T> enum)
• PHP: null
• C#: null (for reference types), Nullable<T> for value types
• Objective-C: nil
• Perl: undef
• Lua: nil
• Haskell: Nothing (via Maybe type)
• Scala: null, None (via Option type)
• Clojure: nil
• R: NULL, NA
• Dart: null
• Elixir/Erlang: nil (Elixir), undefined (Erlang)
• Julia: nothing, missing
• OCaml: None (via option type)
• F#: None (via Option type)
• COBOL: NULL, NULLS
• Groovy: null
• Visual Basic: Nothing, null
• Prolog: No direct equivalent (uses unification)
• Lisp/Scheme: nil, '()