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Lessons/intermediate/Zig Comptime — Compile-Time Programming Guide
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Optionals and Unions

Learn the Zig optional type and null safety — use ?T to represent nullable values, unwrap safely with orelse and if, and match on tagged unions.

22 min

Related lessons

  • Error HandlingMaster Zig error handling — use error unions, error sets, try/catch, and errdefer to write robust code that fails gracefully without exceptions.
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  • Pointers And ReferencesMaster Zig pointers — take addresses with &, dereference with .*, understand *T vs [*]T vs []T, and pass data by reference for efficient code.

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