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Express 5.0 documentation is now available. The API documentation is a work in progress. For information on what’s in the release, see the Express release history.
Access the API reference for Express.js 5.x, detailing all modules, methods, and properties for building web applications with this latest version.
Access the API reference for Express.js detailing all modules, methods, and properties for building web applications with this version.
Learn how to define and use routes in Express.js applications, including route methods, route paths, parameters, and using Router for modular routing.
Learn how to write custom middleware functions for Express.js applications, including examples and best practices for enhancing request and response handling.
Discover how to integrate and use template engines like Pug, Handlebars, and EJS with Express.js to render dynamic HTML pages efficiently.
Learn how to install Express.js in your Node.js environment, including setting up your project directory and managing dependencies with npm.
Get started with Express.js by building a simple 'Hello World' application, demonstrating the basic setup and server creation for beginners.
Access the API reference for Express.js 4.x, detailing all modules, methods, and properties for building web applications with this version.
Learn how to use middleware in Express.js applications, including application-level and router-level middleware, error handling, and integrating third-party middleware.
