app\reviews[slug]\page.jsx

// 產生靜態頁面
export async function generateStaticParams() {
    return [
        { slug: "hellblade" },
        { slug: "hollow-knight" },
    ]
}

變成單獨的函數~回傳 slug

lib\reviews.js

//單獨取出slug

export async function getSlugs() {

const files = await readdir("./content/reviews");

    return files
        .filter((file) => file.endsWith(".md"))
        .map((file) => file.slice(0, -".md".length));
}

// 註  getSlugs() 是拿 getReviews() 程式碼來改的~ 為了不要重複使用程式碼 這邊也要修改一下

export async function getReviews() {

const slugs = await getSlugs();
    
    const reviews = [];
    for (const slug of slugs) {
        const review = await getReview(slug);
        reviews.push(review);
    }

    return reviews;
}

大叔的鐵人賽第十五天結束 :)