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artakvg/optional-or-required-params-from-base.ts

Created March 14, 2019 18:40
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some of parameters from original type - Typescript
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optional-or-required-params-from-base.ts
type Diff<T, U> = T extends U ? never : T;
type OptionalExceptFor<T, TRequired extends keyof T> = Partial<T> & Pick<T, TRequired>;
type RequiredExceptFor<T, TOptional extends keyof T> = Pick<T, Diff<keyof T, TOptional>> & Partial<T>;
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