recover

import { recover } from "https://github.gh-proxy.cn/raw.githubusercontent.com/baetheus/fun/main/fn_either.ts";

Chain the left result of one FnEither into another FnEither.

@example

import * as FE from "./fn_either.ts";
import { pipe } from "./fn.ts";

const result = pipe(
  FE.id<string, number>(),
  FE.flatmap(s => FE.left(s.length)),
  FE.recover(n => FE.right(String(n))),
)("Hello"); // Right("5")

function recover<B, D = unknown, I = never, J = never>(fbtj: (b: B) => FnEither<D, J, I>): <A = never>(ua: FnEither<D, B, A>) => FnEither<D, J, A | I>;

recover<B, D = unknown, I = never, J = never>(fbtj: (b: B) => FnEither<D, J, I>): <A = never>(ua: FnEither<D, B, A>) => FnEither<D, J, A | I>

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§Type Parameters

D = unknown

I = never

J = never

§Parameters

fbtj: (b: B) => FnEither<D, J, I>

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§Return Type

<A = never>(ua: FnEither<D, B, A>) => FnEither<D, J, A | I>

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