[Typescript] 외부 패키지의 타입 치환

한번 감싸기

// asis
const toast = useSelector((state: MyState) => state.common.toast)

// tobe
export default function useTypedSelector<R>(selector: (state: MyState) => R): R {
  return useSelector(selector)
}

 

타입 치환

interface DefaultMyState {
  common: {...}
}

declare module 'react-redux' {
  interface DefaultRootState extends DefaultMyState {}
}

 

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