ts-toolbelt
Version:
TypeScript's largest utility library
16 lines (15 loc) • 494 B
TypeScript
import { Key } from './_Internal';
import { List } from './List';
import { Update } from '../Object/Update';
import { x } from '../Any/x';
import { Cast } from '../Any/Cast';
/**
* Make some entries of `L` not `undefined` (deeply or not)
* @param L to make non nullable
* @param K (?=`Key`) to choose fields
* @returns [[List]]
* @example
* ```ts
* ```
*/
export declare type Undefinable<L extends List, K extends Key = Key> = Cast<Update<L, `${K & number}` | K, x | undefined>, List>;