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Zod · Function

refine

refine adds a custom validation rule to a Zod schema. The rule runs during parsing and can also run during codec encoding.

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Syntax

schema.refine(refinementFunc)

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  • check
  • superRefine
  • parse
  • safeParse
  • codec
  • ZodError

Source: Codecs | Zod. Checked 2026-11-03.