Result | /index.ts | monads@v0.5.10

interface Result

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

Type Parameters

type: symbol

isOk(): boolean

isErr(): boolean

ok(): Option<T>

err(): Option<E>

unwrap(): T | never

unwrapOr(optb: T): T

unwrapOrElse(fn: (err: E) => T): T

unwrapErr(): E | never

match(fn: Match<T, E, U>): U

map(fn: (val: T) => U): Result<U, E>

mapErr(fn: (err: E) => U): Result<T, U>

andThen(fn: (val: T) => Result<U, E>): Result<U, E>

orElse(fn: (err: E) => Result<U, E>): Result<T, E> | Result<U, E>