import { nullable } from "https://deno.land/x/fun@v2.0.0/refinement.ts";
Turn a Refinement<A, B>
into Refinement<null | A, null | B>
.
Type Parameters
B extends A
Parameters
or: Refinement<A, B>
Returns
Refinement<A | null, B | null>
import { nullable } from "https://deno.land/x/fun@v2.0.0/refinement.ts";
Turn a Refinement<A, B>
into Refinement<null | A, null | B>
.