undefined

Creates an undefined schema.

const Schema = v.undefined<TMessage>(message);

Generics

• TMessage extends ErrorMessage<UndefinedIssue> | undefined

Parameters

• message TMessage

Explanation

With undefined you can validate the data type of the input and if it is not undefined, you can use message to customize the error message.

Returns

• Schema UndefinedSchema<TMessage>

Related

The following APIs can be combined with undefined.

Schemas

• array,
• intersect,
• lazy,
• looseObject,
• looseTuple,
• map,
• nonNullable,
• nonNullish,
• nonOptional,
• nullable,
• nullish,
• object,
• objectWithRest,
• optional,
• record,
• set,
• strictObject,
• strictTuple,
• tuple,
• tupleWithRest,
• undefinedable,
• union

Methods

• assert,
• config,
• fallback,
• getDefault,
• getDefaults,
• getFallback,
• getFallbacks,
• is,
• parse,
• parser,
• pipe,
• safeParse,
• safeParser

Actions

• check,
• brand,
• description,
• metadata,
• rawCheck,
• rawTransform,
• readonly,
• title,
• transform

Utils

• entriesFromList,
• isOfKind,
• isOfType