unknown

Accepts any value without checks, including undefined. Never fails.

Signature

function unknown(): Schema<unknown>

When to use

• A field with arbitrary data that is validated later or not at all (metadata, settings).
• To keep a field in data when the object uses unknown: 'strip'.

Example

Arbitrary metadata

const Event = object({
  type: string(),
  payload: unknown(),
});

See also

• object — passthrough mode for all unknown keys