facile-it / json-api-ts

src/io/ArrayC.ts   A

last analyzed 2021-05-10 20:30 UTC

import {identity} from 'fp-ts/lib/function';

import * as t from 'io-ts';

const is = <A>() => (u: unknown): u is Array<A> => u instanceof Array;

export const ArrayC = <A = never>() => new t.Type<Array<A>>(

  'Array',

  is<A>(),

  (u, c) => is<A>()(u)

    ? t.success(u)

    : t.failure(u, c),

  identity

);