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x/tsafe/PickOptionals.ts

🔩 The missing TypeScript utils
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type OptionalKeyof<T extends Record<string, unknown>> = Exclude< { [Key in keyof T]: T extends Record<Key, T[Key]> ? never : Key; }[keyof T], undefined>;
/** * PickOptionals<{ p1: string; p2?: string; p3?: number; }> * is the type * { p2: string; p3: number; } */export type PickOptionals<T extends Record<string, unknown>> = Required<Pick<T, OptionalKeyof<T>>>;