14 lines
494 B
TypeScript
14 lines
494 B
TypeScript
|
import { BasePredicate } from '.';
|
||
|
|
import { Predicates } from './predicates';
|
||
|
|
declare type Optionalify<P> = P extends BasePredicate<infer X> ? P & BasePredicate<X | undefined> : P;
|
||
|
|
export interface Modifiers {
|
||
|
|
/**
|
||
|
|
Make the following predicate optional so it doesn't fail when the value is `undefined`.
|
||
|
|
*/
|
||
|
|
readonly optional: {
|
||
|
|
[K in keyof Predicates]: Optionalify<Predicates[K]>;
|
||
|
|
};
|
||
|
|
}
|
||
|
|
declare const _default: <T>(object: T) => T & Modifiers;
|
||
|
|
export default _default;
|