Express.js is a minimal and flexible Node.js web application framework that makes building web servers and APIs simple and efficient. It’s one of the most popular frameworks used in JavaScript development today and powers many modern web apps.
🧠 Why Learn Express.js?
- 🔁 JavaScript Everywhere: Use JavaScript both on the frontend and backend.
- ⚡ Speed & Performance: Node.js is fast and event-driven, making Express great for handling multiple requests.
- 🧩 Extensible: Add middleware and packages easily for authentication, validation, or logging.
- 💡 Perfect for APIs: Quickly build RESTful APIs to connect with frontend apps, mobile apps, or even WordPress headless setups.