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domain	expressjs.com
summary	Express is a popular, open-source web application framework for Node.js, known for its minimalist design and flexibility. It serves as a routing and middleware foundation for web applications. The provided code snippet demonstrates the core components of an Express app: 1. `const express`: Imports the Express library. 2. `app = express()`: Creates an instance of the Express application. 3. `port = 3000`: Sets the port number for the server to listen on (in this case, 3000). Express is built around middleware – functions that have pre-defined capabilities, which can be used to extend its functionality. These middlewares handle tasks like request parsing, authentication, and more, allowing developers to add custom logic through extension points.
title	Express - Node.js web application framework
description	Express is a fast, unopinionated, minimalist web framework for Node.js, providing a robust set of features for web and mobile applications.
keywords	express, port, features, security, framework, policy, hello, world, more, using, template, engines, best, practices, performance, utility, modules
upstreams	polygon-software.ch
downstreams	nodejs.org, github.com, openjsf.org, youtube.com, x.com, opencollective.com, netlify.com
nslookup	A 104.18.11.221, A 104.18.10.221
created	2024-02-24
updated	2025-10-26
summarized	2025-10-26