export
## Reactコンポーネントの宣言と使用 export const Card = (props) => { return ( <div className="bg-blue-500 text-white p-4"> <h1>{props.title}</h1> <p>{props.children}</p> </div> ); } <Card title="Card Title"> Card Content </Card>
export const openTime = new Date();
{}
export const openTime = new Date(); The time the page was opened is { openTime.toLocaleString() }