<h2 id="project-overview">Project Overview</h2>
In this project, we’ll build a dynamic blog application with the following features:
<ul>
<li>
Dynamic routes for blog posts.
</li>
<li>
Real-time fetching of blog content from a mock API.
</li>
<li>
SEO-optimized pages using Next.js 14 metadata tools.
</li>
<li>
Responsive design with CSS modules.
</li>
</ul>
By the end of this tutorial, you will have a deployable blog application.
<h2 id="setting-up-the-environment">Setting Up the Environment</h2>
<ol>
<li>
Install Node.js
Ensure you have Node.js version 18 or higher installed on your system.
</li>
<li>
Initialize the Project
Run the following command to set up a new Next.js project:
</li>
</ol>
<pre><code class="hljs language-bash">npx create-next-app@latest blog-app
cd blog-app
</code></pre>
<ol start="3">
<li>Start the Development Server
Launch the server to view the app:</li>
</ol>
<pre><code class="hljs language-bash">npm run dev
</code></pre>
Open your browser and navigate to

http://localhost:3000.

<h2 id="creating-a-dynamic-blog-app">Creating a Dynamic Blog App</h2>
<ol>
<li>Setting Up the Blog Structure</li>
</ol>
Create a folder for the blog pages under the app directory:
<pre><code class="hljs language-bash">mkdir -p app/blog/[slug]
</code></pre>
<ol start="2">
<li>Dynamic Routing with App Router</li>
</ol>
Create a dynamic route for blog posts:
<pre><code class="hljs language-jsx">// app/blog/[slug]/page.js
import { use } from 'react';

async function fetchPost(slug) {
 const res = await fetch(`https://jsonplaceholder.typicode.com/posts/${slug}`);
 if (!res.ok) throw new Error('Post not found');
 return res.json();
}

export default function BlogPost({ params }) {
 const post = use(fetchPost(params.slug));

 return (
 &#x3C;article>
 &#x3C;h1>{post.title}&#x3C;/h1>
 &#x3C;p>{post.body}&#x3C;/p>
 &#x3C;/article>
 );
}
</code></pre>
Key Concepts:
Dynamic Routing: [slug] allows the app to handle different URLs dynamically.
Server-Side Rendering: use(fetchPost) fetches data on the server for better SEO.
<ol start="3">
<li>Fetching Blog Posts</li>
</ol>
To display a list of blog posts, create an index page:
<pre><code class="hljs language-jsx">// app/blog/page.js
import Link from 'next/link';

async function fetchPosts() {
 const res = await fetch('https://jsonplaceholder.typicode.com/posts');
 return res.json();
}

export default async function Blog() {
 const posts = await fetchPosts();

 return (
 &#x3C;section>
 &#x3C;h1>Blog Posts&#x3C;/h1>
 &#x3C;ul>
 {posts.map((post) => (
 &#x3C;li key={post.id}>
 &#x3C;Link href={`/blog/${post.id}`}>{post.title}&#x3C;/Link>
 &#x3C;/li>
 ))}
 &#x3C;/ul>
 &#x3C;/section>
 );
}
</code></pre>
<ol start="4">
<li>Styling the Application</li>
</ol>
Add styles using CSS Modules:
<pre><code class="hljs language-css">/* styles/blog.module.css */
.container {
 font-family: Arial, sans-serif;
 margin: 0 auto;
 max-width: 800px;
 padding: 1rem;
}

h1 {
 color: #333;
}
</code></pre>
Import the styles in your components:
<pre><code class="hljs language-jsx">import styles from './styles/blog.module.css';

export default function Blog() {
 // Use `styles.container` for styling
}
</code></pre>
<h2 id="adding-seo-optimization">Adding SEO Optimization</h2>
Use the Metadata API to add SEO tags to the blog:
<pre><code class="hljs language-js">export const metadata = {
 title: 'Dynamic Blog App | Next.js 14',
 description: 'A fully functional blog app built with Next.js 14.',
};
</code></pre>
For individual blog posts, generate dynamic metadata:
<pre><code class="hljs language-js">export async function generateMetadata({ params }) {
 const post = await fetchPost(params.slug);
 return {
 title: `${post.title} | Blog`,
 description: post.body.substring(0, 150),
 };
}
</code></pre>
<h2 id="deploying-the-application">Deploying the Application</h2>
<ol>
<li>Install Vercel CLI:</li>
</ol>
<pre><code class="hljs language-bash">npm install -g vercel
</code></pre>
<ol start="2">
<li>Deploy the App:
Run the following command and follow the prompts:</li>
</ol>
<pre><code class="hljs language-bash">vercel
</code></pre>
<ol start="3">
<li>Live URL: Your app will be live at a unique URL provided by Vercel.</li>
</ol>

In this tutorial, we’ll build a fully functional  blog application using Next.js 14, leveraging its newest features for dynamic routing, SEO, and performance optimization. This project is designed to help you learn practical Next.js 14 concepts step-by-step. 

Documentation Officielle Next Js

How Do I Create Web App Using Next Js ?

Blogging App Using Next Js For A Full-Stack Application

JSONPlaceholder API (Mock Data)

Vercel Deployment Guide

Build a Blog Application with Next.js 14: A Step-by-Step Tutorial 

<h2 id="introduction-to-nextjs-14">Introduction to Next.js 14</h2>
Next.js, the React-based framework by Vercel, continues to innovate with the release of version 14. It empowers developers to create fast, scalable, and feature-rich applications while simplifying complex workflows.
<h2 id="whats-new-in-nextjs-14">What's New in Next.js 14?</h2>
<h3 id="improved-app-router">Improved App Router</h3>
Next.js 14 enhances the App Router, enabling seamless server and client components with improved hydration and streaming capabilities. These improvements significantly reduce Time to Interactive (TTI).
<h3 id="enhanced-performance">Enhanced Performance</h3>
Performance optimization remains a priority, with features like automatic prefetching and optimized bundle splitting. The integration of Turbopack as the default bundler further boosts build speed.
<h3 id="ai-powered-features">AI-Powered Features</h3>
Next.js 14 introduces AI-based tools like AI Routing Assistance, allowing applications to adapt routing dynamically based on user behavior.
<h2 id="setting-up-a-nextjs-14-project">Setting Up a Next.js 14 Project</h2>
Follow these steps to create a new Next.js 14 project:
<ol>
<li>
Install Node.js
Ensure you have Node.js 18 or higher installed.
</li>
<li>
Initialize a New Project
</li>
</ol>
npx create-next-app@latest my-next-app
<pre><code class="hljs language-bash">cd my-next-app
</code></pre>
<ol start="3">
<li>Start the Development Server</li>
</ol>
<pre><code class="hljs language-bash">npm run dev
</code></pre>
Your development server should now be running at http://localhost:3000.
Code Example: Building a Dynamic Web Page
Here's a simple example of building a dynamic blog page using the new App Router:
<pre><code class="hljs language-jsx">// app/blog/[slug]/page.js
import { use } from 'react';

async function fetchPost(slug) {
 const res = await fetch(`https://api.example.com/posts/${slug}`);
 if (!res.ok) throw new Error('Post not found');
 return res.json();
}

export default function BlogPost({ params }) {
 const post = use(fetchPost(params.slug));

 return (
 &#x3C;article>
 &#x3C;h1>{post.title}&#x3C;/h1>
 &#x3C;p>{post.content}&#x3C;/p>
 &#x3C;/article>
 );
}
</code></pre>
Key Highlights:
Dynamic Routing: [slug] allows dynamic URL handling.
Async Data Fetching: use(fetchPost) simplifies fetching and rendering.
<hr>
<h2 id="seo-best-practices-in-nextjs-14">SEO Best Practices in Next.js 14</h2>
<ol>
<li>Optimize Metadata
Use the new <metadata> component in the App Router to set SEO metadata:</metadata></li>
</ol>
export const metadata = {
title: 'Next.js 14 Blog',
description: 'Learn all about Next.js 14 with code examples and resources.',
};
<ol start="2">
<li>Server-Side Rendering (SSR)
Leverage SSR for better search engine indexing:</li>
</ol>
<pre><code class="hljs language-jsx">export async function getServerSideProps(context) {
 const data = await fetch('https://api.example.com/data');
 return { props: { data } };
}
</code></pre>
<ol start="3">
<li>
Image Optimization
Utilize the <img> component for responsive and lazy-loaded images.
</li>
<li>
Sitemap Generation
Automate sitemap generation using tools like next-sitemap.
</li>
</ol>
<hr>
<h2 id="additional-resources">Additional Resources</h2>
<ol>
<li>
Official Next.js 14 Documentation
</li>
<li>
Next.js GitHub Repository
</li>
<li>
Vercel's Blog on Next.js 14 Features
</li>
<li>
Introduction to Turbopack
</li>
</ol>
<hr>
<h2 id="conclusion">Conclusion</h2>
Next.js 14 elevates web development with its innovative features and seamless developer experience. Whether you're a beginner or a seasoned developer, this release has tools to make your applications faster, smarter, and more efficient.
Happy coding!
<hr>
SEO Tip: Ensure this blog includes relevant keywords such as "Next.js 14," "React framework," "modern web development," and "Next.js tutorial."

Next.js 14 is a significant milestone for modern web development. In this blog, we'll explore its key features, walk through code examples, and provide resources to help you get started.

Next.js 14: A Comprehensive Guide with Code Examples 

4. Code Example: Building a Dynamic Web Page

<h2 id="1-introduction-to-tailwind-css">1. Introduction to Tailwind CSS</h2>
Tailwind CSS is a utility-first CSS framework designed to speed up front-end development. Unlike traditional CSS, which involves writing custom styles for elements, Tailwind provides pre-defined classes for styling directly in your HTML.
With Tailwind, you can build beautiful, responsive designs without writing a single line of custom CSS.
<h2 id="2-why-choose-tailwind-css-over-pure-css">2. Why Choose Tailwind CSS Over Pure CSS?</h2>
<h3 id="1-faster-development">1. Faster Development</h3>
With Tailwind CSS, you can skip creating custom classes and jump straight into styling. Instead of juggling between CSS and HTML files, you apply styles directly in your HTML using Tailwind’s utility classes.
Example:
<pre><code class="hljs language-html">&#x3C;!-- HTML -->
&#x3C;div class="card">Welcome to Tailwind!&#x3C;/div>
</code></pre>
<pre><code class="hljs language-css">/* CSS */
.card {
 background-color: #f8fafc;
 color: #1a202c;
 padding: 1rem;
 border-radius: 0.5rem;
}
</code></pre>
<pre><code class="hljs language-html">Tailwind CSS

&#x3C;div class="bg-gray-100 text-gray-900 p-4 rounded-md">Welcome to Tailwind!&#x3C;/div>

Notice how Tailwind eliminates the need for a separate CSS file.
</code></pre>
<h3 id="2-consistency-and-reusability">2. Consistency and Reusability</h3>
Tailwind ensures a consistent design system by using predefined spacing, colors, and typography scales. This removes the need to define custom values for every project, resulting in a unified and professional look.
<h3 id="3-responsive-design-made-simple">3. Responsive Design Made Simple</h3>
Creating responsive designs with pure CSS can involve writing multiple @media queries, which gets repetitive. Tailwind’s responsive design utilities allow you to define breakpoints right in the class names.
Example:
<pre><code class="hljs language-html">&#x3C;div class="bg-blue-500 md:bg-green-500 lg:bg-red-500">
 Responsive Background
&#x3C;/div>
</code></pre>
Here, the background changes based on screen size.
<h3 id="4-no-more-naming-confusion">4. No More Naming Confusion</h3>
Naming CSS classes is often challenging. With Tailwind, you don’t need to worry about naming conventions; the utility classes describe exactly what they do.
<ul>
<li>Code Comparison: Tailwind CSS vs. Pure CSS *</li>
</ul>
Here’s a comparison of creating a simple button with hover effects:
<h3 id="pure-css">Pure CSS</h3>
<pre><code class="hljs language-html">&#x3C;!-- HTML -->
&#x3C;button class="btn">Click Me&#x3C;/button>
</code></pre>
<pre><code class="hljs language-css">/* CSS */
.btn {
 background-color: #4f46e5;
 color: white;
 padding: 0.5rem 1rem;
 border: none;
 border-radius: 0.375rem;
 transition: background-color 0.3s;
}

.btn:hover {
 background-color: #4338ca;
}
</code></pre>
Tailwind CSS
<pre><code class="hljs language-html">&#x3C;button class="bg-indigo-600 text-white px-4 py-2 rounded-md hover:bg-indigo-700">
 Click Me
&#x3C;/button>
</code></pre>
With Tailwind, everything is in one place, and there’s no need to switch files.
<h1 id="5-conclusion">5. Conclusion</h1>
Tailwind CSS empowers developers to build faster, more consistent, and responsive designs without the hassle of writing custom CSS. By adopting this utility-first framework, you can streamline your workflow, maintain clean code, and create beautiful interfaces effortlessly.
If you haven’t tried Tailwind yet, now’s the time!

This blog post explores the advantages of using Tailwind CSS over pure CSS, with real-world examples and code snippets to help you make an informed decision.

Tailwind CSS Official Documentation

Why Choose Tailwind CSS?

Tailwind CSS vs. Bootstrap

Why Choose Tailwind CSS Over Pure CSS 

2. Why Choose Tailwind CSS Over Pure CSS?

3. Code Comparison: Tailwind CSS vs. Pure CSS

<h1 id="table-des-matières">Table des matières</h1>
<ol>
<li><a href="#les-bases-de-powershell">Les bases de PowerShell</a></li>
<li><a href="#commandes-de-base">Commandes de base</a></li>
<li><a href="#variables-et-types-de-donn%C3%A9es">Variables et types de données</a></li>
<li><a href="#boucles-et-conditions">Boucles et conditions</a></li>
<li><a href="#fonctions">Fonctions</a></li>
<li><a href="#gestion-des-fichiers-et-r%C3%A9pertoires">Gestion des fichiers et répertoires</a></li>
<li><a href="#modules-et-importation">Modules et importation</a></li>
</ol>
<h2 id="les-bases-de-powershell">Les bases de PowerShell</h2>
<h3 id="lancement-de-powershell">Lancement de PowerShell</h3>
Pour ouvrir PowerShell :
<ol>
<li>Recherchez "PowerShell" dans le menu démarrer.</li>
<li>Cliquez sur Windows PowerShell ou Windows PowerShell ISE pour l'interface graphique.</li>
</ol>
<h3 id="cmdlets--quest-ce-que-cest-">Cmdlets : Qu'est-ce que c'est ?</h3>
Les cmdlets (prononcées "command-lets") sont des commandes PowerShell intégrées au langage. Elles suivent généralement le format <code>Verbe-Nom</code>.
Exemple :
<pre><code class="hljs language-powershell">Get-Process # Obtenir la liste des processus actifs
</code></pre>
<h3 id="commande-de-base">Commande de base</h3>
<h4 id="obtenir-de-laidepour-obtenir-des-informations-sur-une-commande-">Obtenir de l'aide,Pour obtenir des informations sur une commande :</h4>
<pre><code class="hljs language-powershell">Get-Help &#x3C;Nom-De-La-Commande>
</code></pre>
Exemple:
<pre><code class="hljs language-powershell">Get-Help Get-process
</code></pre>
<h4 id="liste-des-cmlets-disponibles">Liste des cmlets disponibles</h4>
<pre><code class="hljs language-powershell">Get-Command
</code></pre>
Decouvrir la version de PowerShell
<pre><code class="hljs language-powershell">$PSVersionTable.PSVersion
</code></pre>
<h4 id="variables-et-types-de-donnees">Variables et types de donnees</h4>
Declaration de variables
<h2 id="step-2-practice">step-2-practice</h2>
<h3 id="boucles-et-conditions">Boucles et conditions</h3>
<pre><code class="hljs language-powershell">if ($condition) {
 # Instructions si vrai
} else {
 # Instructions si faux
}

Exemple:

if (5 -gt 3) {
 Write-Output "5 est plus grand que 3"
} else {
 Write-Output "5 n'est pas plus grand que 3"
}

foreach ($item in $collection) {
 # Instructions
}

Exemple:

$jours = @("Lundi", "Mardi", "Mercredi")
foreach ($jour in $jours) {
 Write-Output "Aujourd'hui, c'est $jour"
}

</code></pre>

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<pre><code class="hljs language-js">./styles/globals.css
./pages/_app.js
 ✓ Compiled in 1540ms (610 modules)
 ✓ Compiled in 1343ms (613 modules)
 GET /_next/data/development/blog/this-will-let-you-be-what-you're-suppose-to.json?slug=this-will-let-you-be-what-you%27re-suppose-to 200 in 240ms
 ✓ Compiled in 1210ms (611 modules)
 GET /_next/data/development/index.json 200 in 302ms
 ○ Compiling /_error ...
 ✓ Compiled /_error in 980ms (613 modules)
 GET /icons/wellbeing-icon.png 404 in 1125ms
 GET /icons/life-icon.png 404 in 1121ms
 GET /icons/peaceful-life-icon.png 404 in 1118ms
 GET /_next/data/development/blog/6.json?slug=6 404 in 76ms
 GET /_next/data/development/blog/6.json?slug=6 404 in 16ms
 GET /blog/6 404 in 26ms
 GET /blog/6 404 in 12ms
 GET / 200 in 63ms
 GET /icons/wellbeing-icon.png 404 in 44ms
 GET /icons/life-icon.png 404 in 35ms
 GET /icons/peaceful-life-icon.png 404 in 32ms
 ○ Compiling /blog ...
 ✓ Compiled /blog in 1625ms (1000 modules)
 GET /_next/data/development/blog.json 200 in 229ms
 GET /_next/data/development/blog/installation-et-configuration-de-docker-sur-linux-(-ubuntu-).json?slug=installation-et-configuration-de-docker-sur-linux-%28-ubuntu-%29 200 in 180ms
 GET /_next/data/development/blog.json 200 in 96ms
 GET /_next/data/development/blog/this-will-let-you-be-what-you're-suppose-to.json?slug=this-will-let-you-be-what-you%27re-suppose-to 200 in 50ms
</code></pre>

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Full-stack development is a vast field that encompasses various technologies. It refers to the development of both the front end (client side) and back end (server side) of an application.
<h3 id="what-does-full-stack-development-include">What Does Full-Stack Development Include?</h3>
Full-stack development covers several technologies, such as:
<ol>
<li>Front-End Development:
<ul>
<li>HTML</li>
<li>CSS</li>
<li>JavaScript frameworks like React, Angular, Vue, etc.</li>
</ul>
</li>
</ol>

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<pre><code class="hljs language-jsx"> // pages/search.js
import { useState, useEffect } from "react";
import Fuse from "fuse.js";
import { useRouter } from "next/router";
import fs from "fs";
import path from "path";
import Layout from "@/components/Layout";
import { format } from "date-fns";
import Link from "next/link";
export default function SearchResultsPage({ blogs }) {
 const [filteredBlogs, setFilteredBlogs] = useState([]);
 const [loading, setLoading] = useState(true);
 const { query } = useRouter();

 useEffect(() => {
 if (query.query) {
 setLoading(true);
 const fuse = new Fuse(blogs, {
 keys: ["title", "description", "tags", "category"],
 includeScore: true,
 threshold: 0.4,
 });
 const results = fuse.search(query.query);
 setFilteredBlogs(results.map((r) => r.item));
 setLoading(false);
 }
 }, [query.query, blogs]);

 return (
 &#x3C;Layout>

 &#x3C;div className="max-w-4xl mx-auto px-4 py-8">
 &#x3C;h1 className="text-2xl font-bold mb-4">Search Results&#x3C;/h1>
 {loading ? (
 &#x3C;p>Loading...&#x3C;/p>
 ) : (
 &#x3C;div className="grid lg:grid-cols-2 gap-4">
 {filteredBlogs.length > 0 ? (
 filteredBlogs.map((blog, index) => (
 &#x3C;Link key={blog.id} href={`/blog/${blog.title.replace(/\s+/g, '-').toLowerCase()}`}>

 &#x3C;div key={index} className="my-3 py-2 border-b border-gray-200">
 &#x3C;h2 className="text-xl underline font-semibold">{blog.title}&#x3C;/h2>
 &#x3C;p className="my-3">{blog.description}&#x3C;/p>

 &#x3C;div className="flex gap-2 items-center justify-between">
 &#x3C;p className="flex items-center gap-2">

 &#x3C;img src={blog.authorImage} width="24" className="rounded-full ring-2 object-cover"/>
 &#x3C;span className="dark:text-gray-50 text-gray-700">{blog.author}&#x3C;/span>
 &#x3C;/p>
 &#x3C;div className="text-gray-600 mb-1 dark:text-gray-300 text-sm">
 {format(new Date(blog.date), 'MMMM dd, yyyy')}&#x3C;/div>

 &#x3C;div className="text-sm text-blue-500 mb-1 hidden sm:block">{blog.category}&#x3C;/div>

 &#x3C;/div> &#x3C;/div>&#x3C;/Link>
 ))
 ) : (
 &#x3C;p>No results found.&#x3C;/p>
 )}
 &#x3C;/div>
 )}
 &#x3C;/div>
 &#x3C;/Layout>
 );
}

// Fetch blogs data at build time from blogs.json
export async function getStaticProps() {
 const filePath = path.join(process.cwd(), "markdown", "blogs.json");
 const jsonData = fs.readFileSync(filePath, "utf-8");
 const blogs = JSON.parse(jsonData);

 return {
 props: {
 blogs,
 },
 };
}
</code></pre>
<hr>
<h2 id="datacategoriesjs">data/categories.js</h2>
Quelle sont les manieres le plus directe pour remplacer dans un fichier ce qui le rend facile a faire
<pre><code class="hljs language-jsx">export const categories = [
 {
 id: 1,
 name: 'Well-being',
 description: 'Tips and tricks to improve your wellness.',
 slug: 'well-being',
 icon: '/icons/wellbeing-icon.png',
 },
 {
 id: 2,
 name: 'Life',
 description: 'Articles about life balance and lifestyle.',
 slug: 'life',
 icon: '/icons/life-icon.png',
 },
 {
 id: 3,
 name: 'Marketing',
 description: 'Find peace in everyday life.',
 slug: 'marketing',
 icon: '/icons/peaceful-life-icon.png',
 },
 {
 id: 4,
 name: 'English ',
 description: 'Where you will find best english course.',
 slug: 'english',
 icon: '/icons/peaceful-life-icon.png',
 },
 ];
</code></pre>

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Tags:

Table of Contents

Table des matières

Les bases de PowerShell

Lancement de PowerShell

Cmdlets : Qu'est-ce que c'est ?

Commande de base

Obtenir de l'aide,Pour obtenir des informations sur une commande :

Liste des cmlets disponibles

Variables et types de donnees

step-2-practice

Boucles et conditions

Resources

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