zod-validation
Zod Validation (v4)
Type-safe schema validation for TypeScript. Zod v4 introduces top-level format functions, z.stringbool(), z.iso.* date formats, z.overwrite() transforms, z.file(), z.toJSONSchema(), getter-based recursive types, .meta(), and the unified error function.
Package: zod (also zod/mini for smaller bundles)
Quick Reference
| Pattern | Usage |
|---|---|
z.object({ ... }) |
Define object schemas |
z.string(), z.number() |
Primitive types |
z.email(), z.url(), z.uuid() |
Top-level string formats (v4) |
z.iso.date(), z.iso.datetime() |
ISO date/time formats (v4) |
z.int(), z.float32(), z.int32() |
Fixed-width number formats (v4) |
z.templateLiteral([...]) |
Template literal type validation (v4) |
z.enum([...]), z.literal() |
Enums and literals |
z.union([...]), z.discriminatedUnion() |
Union types |
z.array(), z.tuple() |
Array and tuple types |
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