Getting Started with Next.js 15: A Complete Guide

Next.js 15 brings exciting new features and improvements that make building React applications even more powerful and efficient. In this comprehensive guide, we will explore the key features and learn how to build a modern web application from scratch.

What is New in Next.js 15

Next.js 15 introduces several groundbreaking features:

1. Enhanced App Router

The App Router has been further refined with better performance and developer experience improvements.

2. Server Components by Default

Server Components are now the default, providing better performance and SEO out of the box.

3. Improved Caching

Enhanced caching mechanisms for better performance and reduced server load.

Setting Up Your First Next.js 15 Project

Let us start by creating a new Next.js 15 project:

bash
npx create-next-app@latest my-nextjs-app
cd my-nextjs-app
npm run dev

Building Your First Component

Here is how to create a simple server component:

tsx
// app/components/Welcome.tsx
export default function Welcome() {
  return (
    <div className="p-6 bg-blue-50 rounded-lg">
      <h1 className="text-2xl font-bold text-blue-900">
        Welcome to Next.js 15!
      </h1>
      <p className="mt-2 text-blue-700">
        Building modern web applications has never been easier.
      </p>
    </div>
  )
}

Conclusion

Next.js 15 represents a significant step forward in React development, offering improved performance, better developer experience, and powerful new features that make building modern web applications a joy.

Start exploring Next.js 15 today and experience the future of web development!