valid-state-types

Use discriminated unions to prevent invalid state combinations. Group related fields and model exhaustive states to ensure your type definitions only represent valid, non-contradictory data structures.

A discriminated union enforces type safety by grouping related fields under a common literal property, allowing exhaustive checks to ensure only valid state combinations are represented in interdependent models.

Design complex state machines by applying discriminated unions to group interdependent fields and cascading statuses, ensuring all states are exhaustive and preventing contradictory combinations across components.

Replace ad-hoc state flags with discriminated unions when models contain interdependent fields or cascading statuses, ensuring all states are exhaustive and preventing partial or invalid combinations.

Yes, designing valid state types works without external dependencies by relying purely on TypeScript-like type systems' discriminated unions and exhaustive checks to enforce valid state representations.