| import {PromiseValue} from './promise-value'; |
| |
| type AsyncFunction = (...args: any[]) => Promise<unknown>; |
| |
| /** |
| Unwrap the return type of a function that returns a `Promise`. |
| |
| There has been [discussion](https://github.com/microsoft/TypeScript/pull/35998) about implementing this type in TypeScript. |
| |
| @example |
| ```ts |
| import {AsyncReturnType} from 'type-fest'; |
| import {asyncFunction} from 'api'; |
| |
| // This type resolves to the unwrapped return type of `asyncFunction`. |
| type Value = AsyncReturnType<typeof asyncFunction>; |
| |
| async function doSomething(value: Value) {} |
| |
| asyncFunction().then(value => doSomething(value)); |
| ``` |
| */ |
| export type AsyncReturnType<Target extends AsyncFunction> = PromiseValue<ReturnType<Target>>; |
