Roseweltty B. Guida

Node.js 21 vs Node.js 20 – What’s New? Node.js 21 just release, and it brings some good update compared to Node 20, Here is quick overview: V8 Engine Node 20: V8 version 11.7 Node 21: Upgraded to V8 11.8 – faster performance and new js features like Array Grouping fetch & WebStreams Node 20: Experimental Node 21: Stable no more worrying about using fetch and WebStreams in production. WebSocket Client Node 20: Not built-in Node 21: Built-in WebSocket client (experimental, but still super handy for real-time apps). ESM Module Default Node 20: No flag Node 21: New --experimental-default-type flag – Easily flip between CommonJS and ES modules. Test Runner Node 20: Standard testing Node 21: Glob support! Run tests across multiple directories with flexible patterns. Navigator Object Node 20: Not available Node 21: New navigator object, bringing Node.js closer to the browser with access to hardware concurrency info. fs.writeFile Option Node 20: Basic Node 21: New flush option to make sure your data is securely written to disk. Performance Boosts Node 21 comes with serious optimizations in streams, HTTP, and URL handling – faster and smoother apps. Ready to make the switch? Node.js 21 is here to give your apps a boost. #NodeJS #JavaScript #TechUpdate #WebDevelopment #NewRelease

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🚀 Announcing Node.js 23: Key Features and Enhancements! 🚀 Node.js 23 is officially here, bringing a host of exciting features, performance improvements, and better developer experiences! 🛠️ This release enhances compatibility and stability, making it easier to build efficient applications. What's New in Node.js 23? ✨ ESM Enabled by Default: EcmaScript Modules (ESM) are now the default, simplifying module usage in Node.js apps. 💻 Dropped 32-bit Windows Support: Node.js 23 no longer supports 32-bit Windows, focusing on modern environments. 🏃 Stabilized --run Command: The --run flag has been stabilized for more efficient script execution. 🧪 Test Runner Enhancements: Now with support for glob patterns in coverage files, making test configuration more flexible. Additionally, Node.js 22 will enter Long-Term Support (LTS) in the week of October 29th, ensuring stable and secure updates for production applications. Remember: Odd-numbered versions like Node.js 23 are for testing new features, while even-numbered versions like Node.js 22 focus on stability and security and are supported for 30 months under the LTS strategy. For more details, check out the Node.js repository and the official changelog for further updates and deprecations. #Nodejs23 #JavaScript #WebDevelopment #ESModules #NodejsCommunity #Developers #TechUpdates #Coding #SoftwareEngineering #LTS #NewRelease

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🔥 Your Ultimate Node.js Developer Roadmap 🔥 Are you ready to become a Node.js wizard? 🧙‍♂️ This step-by-step guide will take you from beginner to pro! 1️⃣ Step 1: Strengthen Your JavaScript Base Master JavaScript fundamentals because it’s the heart of Node.js: ✔️ ES6+ Features (let, const, arrow functions) ✔️ Asynchronous Programming (Promises, Async/Await) ✔️ Closures & Scopes ✔️ The Event Loop ✔️ Array & Object Manipulations 💡 Pro Tip: Understand the "Why" behind concepts like this and hoisting. 2️⃣ Step 2: Learn Core Node.js Concepts Get comfortable with these foundational topics: ✔️ Global Objects (process, require, __dirname) ✔️ File System Module (fs) for reading/writing files ✔️ Modules: CommonJS & ES Modules ✔️ HTTP Module: Build APIs from scratch ✔️ Event Emitters 💡 Pro Tip: Build a small project like a file organizer to practice these skills. 3️⃣ Step 3: Dive Into Express.js Level up by creating APIs and handling web requests: ✔️ Middleware (custom and built-in) ✔️ Routing and URL Parameters ✔️ Error Handling ✔️ RESTful API Design Principles ✔️ Serving Static Files 💡 Pro Tip: Create a basic blog API with CRUD functionality. 4️⃣ Step 4: Explore Databases Learn how to connect Node.js with databases: ✔️ NoSQL: MongoDB with Mongoose (Schemas & Models) ✔️ SQL: MySQL/PostgreSQL with Sequelize ORM ✔️ Redis for caching 💡 Pro Tip: Practice writing queries for real-world use cases like user authentication or product management. 5️⃣ Step 5: Real-Time & Advanced Features Get hands-on with advanced concepts: ✔️ WebSockets with Socket.io for real-time communication ✔️ Streams: Handle large data efficiently ✔️ Event-Driven Programming Patterns 💡 Pro Tip: Create a chat application to see real-time concepts in action! 6️⃣ Step 6: Secure Your Apps Learn how to safeguard your applications: ✔️ Environment Variables (dotenv) ✔️ Authentication (JWT, OAuth) ✔️ Input Validation (Joi) ✔️ Prevent Vulnerabilities (XSS, CSRF, SQL Injection) ✔️ Use Helmet for secure HTTP headers 💡 Pro Tip: Build a secure login system for your app. 7️⃣ Step 7: Deploy Like a Pro Take your app live with confidence: ✔️ Dockerize your Node.js app ✔️ Use PM2 for process management ✔️ Explore CI/CD pipelines ✔️ Deploy to platforms like AWS, Heroku, or Vercel 💡 Pro Tip: Practice deploying small projects to get familiar with the process. 8️⃣ Step 8: Build Scalable Systems Understand and implement these advanced concepts: ✔️ Microservices Architecture ✔️ Message Queues (RabbitMQ, Kafka) ✔️ Load Balancing ✔️ Horizontal Scaling 💡 Pro Tip: Experiment with breaking a monolithic app into smaller, modular services. Resources to Explore MDN JavaScript Docs: https://lnkd.in/ggxVGmjB Node.js Docs: https://lnkd.in/gC-RY5CU Express.js Guide: https://lnkd.in/g8A-UEcM 💬 What’s Next? Have questions or progress to share? Drop a comment! Let’s grow together. 🌟 🚀 Start your Node.js journey today! #NodeJS #JavaScript #Roadmap #TechLearning

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Hands-on Node.js: The Node.js Introduction and API Reference by Pedro Teixeira When diving into Node.js, Hands-on Node.js by Pedro Teixeira is one of those resources that feels like a robust, grounded companion, guiding you through each stage of development. As someone who has explored various Node.js resources, this book struck me with its clarity and practicality, especially for developers seeking a hands-on approach.

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🚀 Mastering Node.js: Building a Simple Note Management App I’ve been working with Node.js to build a simple CLI app for managing notes. Here’s a breakdown of how I handled file I/O using fs (file system) to create, read, update, and delete notes from a JSON file. Here's the key flow: Read Notes: Read a JSON file (notes.json) and parse it into an array. Write Notes: Save notes to the file after every addition, update, or deletion. Add Note: Push a new note with a title, content, and unique ID. Update Note: Find the note by title and update its content. Delete Note: Locate the note by title and remove it from the list. This simple note management system works synchronously to ensure that the data is always up to date. Perfect for those just getting started with Node.js and file operations! Check out the code below and give it a try. This project is a great introduction to handling file operations in Node.js! #NodeJS #JavaScript #BackendDevelopment #Programming #Coding #Tech 💻 Code:

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I'd like to share a code refactoring from a JavaScript FrontEnd project to ReactJS, using hooks (UseState, UseEffect, UseContext, and UseSearchParams) and UseLocation, BrowserRouter, and link (React-Router-Dom) into components. Tailwind used in formatting (CSS) https://lnkd.in/dvK_RTGj See at https://lnkd.in/dkWUHyTr

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Introduction to Networking in Node.js 🌐 I’m diving into networking in Node.js this week, starting with the basics of creating an HTTP server. It’s amazing how Node.js makes handling network requests so simple! Using the built-in http module, we can quickly set up a server to handle client requests. 🚀 Stay tuned as I walk through the process step by step. #Nodejs #Networking #BackendDevelopment

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🚀 Mastering Node.js: Top 40 Interview Questions You Need to Know 🚀 Looking to ace your next Node.js interview? 🌟 Check out this comprehensive guide that covers key concepts and essential questions to help you prepare like a pro! Whether you're a beginner or an experienced developer, these questions will give you insights into mastering Node.js and advancing your career. 📝 Some key topics covered: ● Event-driven architecture ● Asynchronous programming ● Middleware functions ● RESTful APIs in Node.js ● Error handling in Node.js Credit: mohammed salman Hussein #NodeJS #InterviewPreparation #WebDevelopment #JavaScript #BackendDeveloper #SoftwareEngineering #CareerGrowth #NodeJSTutorials #DeveloperLife #TechInterviews #CodeWithNode #JSInterview #FullStackDeveloper

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What is a Child Thread in Node.js? 🤔 In Node.js, a child thread (or worker thread) allows you to execute JavaScript code in parallel. This is especially useful for CPU-intensive tasks, as it helps keep the main thread free and responsive. 🤝 Handling Child Threads in Node.js: ✔ Import the Worker Threads module: Use the built-in module to manage worker threads. ✔ Create a Worker: Set up a worker thread by specifying the script to be executed. ✔ Communicate with the Worker: Send and receive messages between the main thread and the worker. ✔ Handle Errors: Implement error handling to manage any issues that arise in the worker thread. ✔ Clean Up: Ensure proper cleanup of worker threads, including handling their exit codes. By utilizing worker threads, you can significantly improve the performance of your Node.js applications. #NodeJS #JavaScript #WebDevelopment #Programming #TechTips

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Mastering Node.js: Setting Up a Professional Backend Project Looking to level up your backend development skills? Here’s a step-by-step guide to setting up a professional backend project in Node.js: 1. Project Structure: Organize your code with clear folder structure (e.g., src, config, routes, controllers, models, middleware). 2. Environment Setup: Use .env files to manage environment variables. 3. Package Management: Leverage npm or yarn for dependency management. 4. Code Quality: Implement ESLint and Prettier to maintain code quality and consistency. 5. Testing: Use frameworks like Mocha, Chai, or Jest for unit and integration tests. 6. Version Control: Integrate Git for version control and GitHub for repository management. 7. API Documentation: Use Swagger or Postman for API documentation. 8. Error Handling: Implement centralized error handling and logging. 9. Security: Ensure best practices in security, including data validation and sanitization. Grateful to Hitesh Choudhary, sir for sharing such incredible content, thank you for the knowledge and inspiration. Stay curious and keep coding! #NodeJS #BackendDevelopment #Coding #JavaScript #TechTips

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Why Node.js is So Popular 🚀 Node.js has become one of the most popular platforms for backend development, and here’s why: 1. Fast and Efficient ⚡ Node.js is built on the V8 JavaScript engine, which makes it super fast. It can handle multiple requests at the same time without slowing down, making it perfect for real-time applications like chat apps or streaming services. 2. JavaScript Everywhere 🌍 With Node.js, developers can use JavaScript for both the frontend and backend. This means they can work faster because they don’t need to switch between different programming languages. 3. Non-Blocking and Asynchronous 🚦 Node.js uses an event-driven, non-blocking I/O model. This allows it to handle many tasks at once without waiting for one to finish, which boosts performance for apps that need to process a lot of requests at the same time. 4. Great for Real-Time Applications ⏱️ If your app needs to deliver data in real-time, like a messaging or gaming app, Node.js is a perfect fit. It can handle multiple connections efficiently, making real-time updates smooth and fast. 5. Scalable and Lightweight 💡 Node.js is designed to be scalable, meaning it can grow with your application. Whether your project is small or large, Node.js can handle the workload without slowing down. 6. Huge Community and Libraries 🌐 Node.js has a massive community of developers constantly creating and sharing useful libraries. The Node Package Manager (NPM) is full of modules you can use to add features to your project quickly. 7. Cross-Platform Compatibility 🖥️ Node.js works on multiple platforms, including Windows, Linux, and macOS. This flexibility allows developers to create applications that can run anywhere. 8. Supports Microservices Architecture 🏗️ Node.js is excellent for building microservices, which are small, independent services that work together. This helps make apps more scalable and easier to maintain. #NodeJS #BackendDevelopment #WebDevelopment #JavaScript #FullStackDevelopment #ScalableApps #AffordableServices #TechStack #Microservices #WebPerformance #Coding #DeveloperCommunity #HiringDeveloper

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🚀 Exciting Update from Node.js v22.1.0! 🚀 I have made a notable contribution to the latest Node.js release with the implementation of a safer URL parsing method in v22.1.0. #node #nodejs #javascript #opensource #WebDevelopment

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🧠 Boost Performance with React.PureComponent 🚀 When building React apps, efficient rendering is key. React.PureComponent is a special type of component that helps optimize performance by automatically implementing a shallow comparison of props and state. How It Works: Unlike React.Component, which re-renders every time state or props change, React.PureComponent only re-renders when there's a difference. This can prevent unnecessary renders, especially in components that receive the same props frequently. When to Use: React.PureComponent is best for components where a shallow comparison is sufficient to detect changes. However, if your component relies on deep objects or arrays, consider using React.memo or custom comparison functions. Enhance your app’s performance with React.PureComponent and enjoy smoother, faster UI updates! ⚡ #ReactJS #WebDevelopment #Frontend #PerformanceOptimization #JavaScript 🖥️✨

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🌟 Day 2 of Node.js Series: Assuring Consistent Code Style 🌟 "Good code is like a story—clear, structured, and easy to follow. Tools don’t just enforce rules; they pave the way for seamless collaboration." 💡 In software development, consistency in code style isn’t just about aesthetics—it’s about creating a codebase that’s easy to read, debug, and scale. Whether you're working solo or in a team, ensuring uniformity is crucial. Here are the top tools that every Node.js developer should know: Top Tools for Consistent Code Style in Node.js ESLint The ultimate linter for JavaScript/Node.js, it catches potential errors and enforces coding standards. Bonus: You can pair it with the Airbnb Style Guide for comprehensive rules. Prettier An opinionated code formatter that ensures your code looks the same across your entire team. Works perfectly with ESLint for formatting AND linting in one workflow. Husky + lint-staged Husky integrates linting tools with Git hooks to enforce code style BEFORE a commit is made. lint-staged ensures only modified files are checked, making it faster and efficient. EditorConfig A tool to standardize editor settings (e.g., indentation, line endings) across all team members’ IDEs. CI/CD Integration Use tools like GitHub Actions or Jenkins to automate linting and style checks as part of your pipeline. Why Consistency Matters ✔️ Readability: Consistent style improves the readability of your codebase. ✔️ Collaboration: Easier for teams to work together without worrying about style conflicts. ✔️ Scalability: A consistent codebase scales better as your team or project grows. By investing in these tools early, you save countless hours of code reviews and debugging, creating space for innovation and creativity. "Consistency is the hallmark of great developers. When we write code with discipline today, we unlock possibilities for tomorrow." 🌟 #Nodejs #JavaScript #BackendDevelopment #WebDevelopment #TechCommunity #FullStackDevelopment #LearningNeverStops #KnowledgeSharing #SoftwareEngineering #DevelopersLife #OpenSource #CloudComputing #APIDevelopment #KeepCoding #CodeWithMe #100DaysOfCode #CareerDevelopment #GoogleDevelopers #MicrosoftDev #AmazonWebServices #TechSavvy #LevelUpYourSkills #InnovationThroughCode

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🚀 Mastering Node.js: Top 40 Interview Questions You Need to Know 🚀 Looking to ace your next Node.js interview? 🌟 Check out this comprehensive guide that covers key concepts and essential questions to help you prepare like a pro! Whether you're a beginner or an experienced developer, these questions will give you insights into mastering Node.js and advancing your career. 📝 Some key topics covered: ● Event-driven architecture ● Asynchronous programming ● Middleware functions ● RESTful APIs in Node.js ● Error handling in Node.js #NodeJS #InterviewPreparation #WebDevelopment #JavaScript #BackendDeveloper #SoftwareEngineering #CareerGrowth #NodeJSTutorials #DeveloperLife #TechInterviews #CodeWithNode #JSInterview #FullStackDeveloper

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🚀 Horizontal scaling in Node.js Node.js is single-threaded by design, which means it runs on a single core of the CPU. but did you know it can still take advantage of multi-core systems? 💡 Enter Node.js Clusters! By using the cluster module, you can: 1️⃣ Distribute Workloads: Create multiple worker processes to handle tasks in parallel. 2️⃣ Maximize CPU Usage: Leverage all cores of your machine for improved performance. 3️⃣ Increase Reliability: If a worker crashes, others can continue running, ensuring better fault tolerance. ℹ️ While clusters boost performance, keep in mind they share a single memory space. For high scalability, you might still consider worker threads or other distributed systems like microservices. #NodeJS #Scalability #WebDevelopment #PerformanceOptimization

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🚀 Mastering Node.js: Top 40 Interview Questions You Need to Know 🚀 Looking to ace your next Node.js interview? 🌟 Check out this comprehensive guide that covers key concepts and essential questions to help you prepare like a pro! Whether you're a beginner or an experienced developer, these questions will give you insights into mastering Node.js and advancing your career. 📝 Some key topics covered: ● Event-driven architecture ● Asynchronous programming ● Middleware functions ● RESTful APIs in Node.js ● Error handling in Node.js #NodeJS #InterviewPreparation #WebDevelopment #JavaScript #BackendDeveloper #SoftwareEngineering #CareerGrowth #NodeJSTutorials #DeveloperLife #TechInterviews #CodeWithNode #JSInterview #FullStackDeveloper

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🌟 𝙎𝙮𝙣𝙘𝙝𝙧𝙤𝙣𝙤𝙪𝙨 𝙫𝙨 𝘼𝙨𝙮𝙣𝙘𝙝𝙧𝙤𝙣𝙤𝙪𝙨 𝙞𝙣 𝙉𝙤𝙙𝙚.𝙟𝙨 🌟 When building apps in Node.js, choosing the right approach is essential. Here’s a simple guide: 𝗦𝘆𝗻𝗰𝗵𝗿𝗼𝗻𝗼𝘂𝘀 𝗔𝗽𝗽𝗿𝗼𝗮𝗰𝗵 𝙒𝙝𝙖𝙩 𝙞𝙨 𝙞𝙩? Tasks run𝙤𝙣𝙚 𝙖𝙩 𝙖 𝙩𝙞𝙢𝙚, blocking further code until the current task finishes. 𝙐𝙨𝙚 𝙞𝙩 𝙛𝙤𝙧: - Small scripts with simple operations. - Tasks where each step depends on the previous one finishing. - 𝙀𝙭𝙖𝙢𝙥𝙡𝙚: Reading a file synchronously during app startup. 𝗔𝘀𝘆𝗻𝗰𝗵𝗿𝗼𝗻𝗼𝘂𝘀 𝗔𝗽𝗽𝗿𝗼𝗮𝗰𝗵 𝙒𝙝𝙖𝙩 𝙞𝙨 𝙞𝙩? Tasks run𝗶𝗻 𝘁𝗵𝗲 𝗯𝗮𝗰𝗸𝗴𝗿𝗼𝘂𝗻𝗱, allowing the app to keep running other tasks. 𝙐𝙨𝙚 𝙞𝙩 𝙛𝙤𝙧: - Handling many simultaneous operations (e.g., API calls, file reading). - Apps needing high performance, like servers. - 𝙀𝙭𝙖𝙢𝙥𝙡𝙚: Fetching user data while processing other requests. 💡 𝙌𝙪𝙞𝙘𝙠 𝙏𝙞𝙥: Use 𝙖𝙨𝙮𝙣𝙘 for better performance in most cases. Go for 𝙨𝙮𝙣𝙘 when tasks must finish in order or for small utilities. #NodeJS #WebDevelopment #AsyncVsSync #CodingSimplified

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