Manuel Casares Rojas manucasares
emiloberg
/ promise.ts
Last active
March 23, 2025 09:30
Type-safe promise.allSettled where a promise may or may not be required
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| type PromiseObject<T> = { | |
| promise: Promise<T>; | |
| required: boolean; | |
| }; | |
| type PromiseResult<T> = T extends Promise<infer U> ? U : never; | |
| type PromiseResults<T extends readonly PromiseObject<unknown>[]> = { | |
| [K in keyof T]: T[K]['required'] extends true | |
| ? PromiseResult<T[K]['promise']> |