Description: The argument object in Express.js is a fundamental structure that encapsulates the parameters passed to a function, allowing developers to access relevant information in an organized and efficient manner. This object, commonly known as ‘req’ (request), contains data about the HTTP request made by the client, including URL parameters, body data, headers, and more. Its use is crucial in web application development, as it facilitates interaction between the server and the client, enabling functions to effectively handle business logic. By working with this object, developers can extract specific information, such as query parameters, which are essential for customizing server responses according to user needs. In summary, the argument object in web frameworks like Express.js is a powerful tool that simplifies request management and enhances the development experience in web applications.
