[TypeScript] TypeScript interface 사용 예시들

TypeScript 사용이 처음이라 사용방법이 꽤나 어렵다,,,ㅍㅁㅍ

interface pageCompent {
    des: string;
    component: JSX.Element;
}

function selectedComponent(name: string):pageCompent {
    switch (name) {
        case "page-name":
            return {des: "ABC", component: <ABCPage />};
        ...
}

export default function XYZPage({params: {name}}: IParams) {
    const { des, component } = selectedComponent(name);
    return (
        <div>
            <div>
                <MenuNavigation menuName={des} />
        	</div>
         	<div>
                {component}
            </div>
        </div>
      );
    }