typescript-advanced-patterns

TypeScript branded types prevent mixing domain values by tagging primitives with a compile-time marker. This enforces type safety, stopping accidental assignment of a quantity to a currency amount in financial models.

TypeScript discriminated unions manage complex state by combining types sharing a common literal property. This enables type guards to narrow state shapes safely, enforcing compile-time guarantees for valid transitions.

Build reusable components by applying advanced generics with complex constraints to infer types automatically. This captures input relationships directly, yielding robust APIs with strong compile-time guarantees.

Yes, you can enforce business rules at compile time using mapped types and conditional types. This approach embeds validation logic directly into the type system, ensuring robust, type-safe data structures.

Template literal types construct complex string types by combining unions and literals. You need them to enforce type-safe string patterns, creating robust APIs with compile-time guarantees for dynamic routes.