
Engineering
Runtime Type Safety with Zod: Validating at Every Boundary
TypeScript's type system stops at compile time — Zod closes the gap by validating data at the runtime boundaries where it actually matters.
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TypeScript's type system stops at compile time — Zod closes the gap by validating data at the runtime boundaries where it actually matters.

Walk through building a type-safe form library in TypeScript with runtime validation, field-level error tracking, dirty state management, and a composable API that catches form errors at compile time.

A practical reference for the regular expression patterns you'll actually use in daily development, from validation to parsing to search-and-replace.