What language is nodejs express?

Node.js Express: A web development framework based on JavaScript language

Node.js is a server-side JavaScript language that allows developers to write applications on the server side using JavaScript. This means that developers can use the same programming language on the front and back ends, making web application development easier and more efficient.

Node.js comes with an HTTP module that allows developers to quickly build their own HTTP servers. However, just an HTTP server may not be enough for practical web development needs. At this time, you need to use Express, a third-party extension module of Node.js.

Express is a high-performance, flexible and scalable web development framework built on the Node.js platform and is currently one of the most popular Node.js web frameworks. Express provides a series of tools and functions to make web development easier and faster.

Express provides a rich API by encapsulating the HTTP module of Node.js, and also provides many middleware to handle various web application scenarios. Middleware are functions that handle processing between requests and responses and can be used for various tasks such as routing, authentication, logging, template engines, and more.

Using the Express framework can make Node.js development easier and more efficient. It also supports many plug-ins that can greatly expand its functionality. In addition, Express has a series of advantages:

1. Excellent performance: Express is built based on Node.js and uses a non-blocking I/O model, which can handle high concurrent requests.

2. Excellent routing processing function: Express provides an interface that can easily define and process routing.

3. Rich HTTP response functions: Express provides a rich set of HTTP response functions, which can perform error handling, redirection, response header processing, etc.

4. Highly customizable: Express provides many middleware and plug-ins that developers can choose to use according to their own needs.

In short, Node.js Express provides a very simple, efficient and flexible way to build web applications. The Express framework is a good choice for developers who need to develop web applications quickly.

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