eoncarlyle

import { pipe } from "fp-ts/function";
import { IO, chain as chainIO, map as mapIO } from "fp-ts/IO";

const effect: IO<string> = () => "myString";

// Functors implement map, and these are useful
const singleChange: (fa: IO<string>) => IO<string> = mapIO((input: string) =>
  input.toUpperCase(),
);
const singleChangeApplied = singleChange(effect);