Programming with Next.js and Using the App Router

Introducing Next.js and App Router

Next.js is one of the most popular frameworks for React, a powerful tool for building modern web applications. This framework provides features such as server-side rendering and optimized routes, enabling developers to create highly efficient applications.

In recent versions of Next.js, utilizing the App Router gives developers the ability to manage their routes in a more organized and clean manner. This capability allows programmers to better control the structure of their files and modules.

Working with Client Components

One of the attractive features of Next.js is the ability to use Client Components for client-side rendering. This feature provides a seamless interaction that significantly enhances user experience.

You can utilize this capability to implement components that require high interactivity, initiating client-side rendering while simultaneously managing server-side rendering for cases that only require initial data and high performance.

Example Use of App Router with Client Components

Let’s look at a code example that demonstrates the use of App Router and Client Components in Next.js.

import React from 'react';
import { AppRouter } from 'next/router';

const MyPage = () => {
  return (
    <div>
      <h2>Welcome to My Next.js Page</h2>
      <AppRouter>
        <ClientComponent />
      </AppRouter>
    </div>
  );
};

export default MyPage;
  

Line-by-Line Code Explanation

import React from 'react';
This line imports the React library for using components.

import { AppRouter } from 'next/router';
This line imports AppRouter from the next/router library to manage routes.

const MyPage = () => { ... }
This defines a functional component that represents your page.

<h2>Welcome to My Next.js Page</h2>
This is a heading that displays "Welcome to My Next.js Page".

<AppRouter>...</AppRouter>
This uses AppRouter for managing and displaying different routes.

<ClientComponent />
This is a component that renders on the client-side.

export default MyPage;
This line exports the component as the default export of this module.