1. What is Node.js?
Node.js is a JavaScript runtime built on Chrome’s V8 JavaScript engine that allows developers to run JavaScript on the server-side. It’s event-driven and non-blocking, making it ideal for building scalable applications.
2. Why Use Node.js for Back-End Development?
Node.js allows JavaScript developers to use the same language for both front-end and back-end development, leading to faster development cycles and better code sharing.
3. Key Features of Node.js
- Non-blocking I/O: Node.js can handle multiple requests simultaneously, making it fast and efficient.
- Single-Threaded Event Loop: It allows Node.js to handle numerous I/O-bound operations without blocking the main thread.
- npm (Node Package Manager): The npm ecosystem offers a vast library of modules for various tasks.
4. Building Web Servers with Node.js
Using Node.js, developers can build web servers quickly using frameworks like Express.js. It allows for handling HTTP requests, managing routing, and interacting with databases.
5. Conclusion
Node.js is a powerful tool for building fast, scalable, and efficient web applications. It’s ideal for developers who want to use JavaScript on both the client and server sides.