interface IconProps {
  size: number;
}
 
interface Props {
  icon: React.ReactElement<IconProps>;
}
 
const Item = ({ icon }: Props) => {
  const iconsize = icon.props.size;
};
 
// 이렇게도 쓸 수 있다.

type ReactSelectProps = React.ComponentPropsWithoutRef<"select">;
 
interface SelectProps<OptionType extends Record<string, string>> {
  id?: ReactSelectProps["id"];
  className?: ReactSelectProps["className"];
}