Function createKeyPredicate

src/useKey.ts:15–22

(keyFilter: KeyFilter)

}

const createKeyPredicate = (keyFilter: KeyFilter): KeyPredicate =>
  typeof keyFilter === 'function'
    ? keyFilter
    : typeof keyFilter === 'string'
    ? (event: KeyboardEvent) => event.key === keyFilter
    : keyFilter
    ? () => true
    : () => false;

const useKey = <T extends UseEventTarget>(
  key: KeyFilter,