isoDate

Creates an ISO date validation action.

Format: yyyy-mm-dd

The regex used cannot validate the maximum number of days based on year and month. For example, "2023-06-31" is valid although June has only 30 days.

const Action = v.isoDate<TInput, TMessage>(message);

Generics

With isoDate you can validate the formatting of a string. If the input is not an ISO date, you can use message to customize the error message.

The following examples show how isoDate can be used.

Schema to validate an ISO date.

const IsoDateSchema = v.pipe(
  v.string(),
  v.isoDate('The date is badly formatted.')
);

The following APIs can be combined with isoDate.