How can middleware functions modify the request and response objects in Express.js?

  • Middleware functions can modify request and response objects directly.
  • Middleware functions cannot modify request and response objects in Express.js.
  • Middleware functions can only modify the request object, not the response object.
  • Middleware functions can only modify the response object, not the request object.
Middleware functions in Express.js have access to the request and response objects, and they can modify these objects directly. This allows them to add, modify, or remove properties and headers, which is useful for various purposes like authentication, logging, and data transformation.
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