zod

Runtime data validation against TypeScript types is achieved by defining schemas with z.object and z.string, which automatically infer types and safely parse incoming API inputs or form data.

Automatic type inference from schemas allows you to define a validation structure once, and TypeScript automatically infers the static types from that schema, eliminating duplicate type definitions.

Safe parsing handles errors safely by returning a result object instead of throwing, letting you gracefully manage invalid runtime data and access detailed error reports without crashing your application.

TypeScript runtime validation works for API input and form data by applying schema combinators to shape and validate incoming payloads, ensuring data entering your system matches expected types.

You can compose complex schemas using unions, refinements, and transforms to create robust validation rules, allowing you to validate nested structures and custom constraints within your TypeScript projects.

The best way to shape data across TypeScript projects is using composable schemas that provide runtime-safe parsing and automatic type inference, ensuring consistent data structures from API inputs to form handling.