ResLeft | /either/either.ts | monads@v0.5.10

👻 Option, Result, and Either types for TypeScript; Inspired by Rust

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interface ResLeft

implements Either<L, R>

import { type ResLeft } from "https://deno.land/x/monads@v0.5.10/either/either.ts";

Type Parameters

unwrap(): L

unwrapLeft(): L

unwrapRight(): never

match<U>(fn: Match<L, never, U>): U

map<U>(fn: (val: L) => U): ResLeft<U, never>

mapLeft<U>(fn: (left: L) => U): Either<U, never>

mapRight<U>(fn: (right: R) => U): ResLeft<L, never>