Type Alias: InferSuccess<T>

InferSuccess<T> = [T] extends [(...args) => ResultMaybeAsync<infer U, any>] ? U : [T] extends [ResultMaybeAsync<infer U, any>] ? U : never

Defined in: result.ts:170

Infers the Success value type T from a Result or a function returning a Result.

Type Parameters

T

T

A ResultMaybeAsync type or a function returning it.

Examples

import { Result } from '@praha/byethrow';

type R = Result.Result<number, string>;
type SuccessValue = Result.InferSuccess<R>; // number

import { Result } from '@praha/byethrow';

const fn = () => Promise.resolve({ type: 'Success', value: 123 } as const);
type SuccessValue = Result.InferSuccess<typeof fn>; // number