import { optics } from "https://deno.land/x/fun@v2.0.0-alpha.6/mod.ts";
const { left } = optics;
Given an optic focused on an Either<B, A>, construct an Optic focused on the Left value of the Either.
import { optics } from "https://deno.land/x/fun@v2.0.0-alpha.6/mod.ts";
const { left } = optics;
Given an optic focused on an Either<B, A>, construct an Optic focused on the Left value of the Either.