What is Express>It?

Express.js, or simply Express, is a minimal and flexible Node.js web application framework that provides a robust set of features for web and mobile applications. It simplifies the process of building server-side applications by providing tools for routing HTTP requests, rendering dynamic HTML pages, and defining middleware to handle various tasks such as logging, authentication, and session management. It's a commonly used framework for building APIs and web applications using JavaScript on the server-side.