Next.js·Next.js essentials

Layouts and routes

Folders define URL segments and layouts persist across navigation.

Intermediate 10 min read Lesson 2 of 150 Challenge included
What you will be able to do
  • Nested folders create paths.
  • layout.tsx wraps pages.
  • [slug] creates dynamic segments.

In plain English

Folders define URL segments and layouts persist across navigation.

  • Nested folders create paths.
  • layout.tsx wraps pages.
  • [slug] creates dynamic segments.
app/courses/[slug]/page.tsxJavaScript
export default function Course({ params }: { params: { slug: string } }) {
  return <h1>{params.slug}</h1>
}
Your turn

Explain it back

Easy

Answer from memory: What does a [slug] folder create?

TEXT · starter
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Knowledge checkQuestion 1

What does a [slug] folder create?

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