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Advanced TypeScript patterns, type-level programming, and compiler-verified correctness.
3 articles in this series
Discriminated unions are the closest TypeScript gets to algebraic data types. Used correctly, they eliminate entire classes of runtime errors by making…
Discriminated unions, template literal types, conditional types, branded types, and the type-level patterns that make impossible states actually impossible.
How to use Zod as a runtime validation boundary between trusted internal code and untrusted external data — inputs, API responses, and localStorage reads.
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