nil

DDataParser.nil() only accepts null. Useful to explicitly describe fields that must be null or to combine with optional/nullable.

Interactive example

Parameters

• errorMessage: custom message when the input is not null.
• checkers: checkerRefine to add business logic.
• coerce: true to convert undefined/"null" to null. Defaults to false.

Return value

A DataParserNil. schema.parse(data) returns DEither.success<null> or DEither.error<DataParserError>.

Other examples

Extended mode

See also

• date
• literal
• optional