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@minofrk/msf-io-ts

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Type utilities with io-ts for MSF format.

15 lines (11 loc) 397 B
import { brand, Branded, TypeOf, string as tString } from 'io-ts'; import isRFC3339 from '../is-rfc3339'; export interface DateTimeStringBrand { readonly DateTimeString: unique symbol; } export const DateTimeString = brand( tString, (x): x is Branded<string, DateTimeStringBrand> => isRFC3339(x), 'DateTimeString', ); export type DateTimeString = TypeOf<typeof DateTimeString>;