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JavaScript Express Basics (2015) Doing more with Express Using “express-generator” to Start an Express Project

Hamza Hajji
Hamza Hajji
11,931 Points
Posted by Hamza Hajji
Hamza Hajji
11,931 Points

I know the req and res stand for request and response but what does the 'next' paramater mean ?!

can somebody please explain ?

1 Answer

Steven Parker
Steven Parker
229,783 Points
Steven Parker
Steven Parker
229,783 Points

Paraphrasing the Express Guide:

Middleware functions have access to the request object (req), the response object (res), and the next middleware function in the application’s request-response cycle. If the current middleware function does not end the request-response cycle, it must call next() to pass control to the next middleware function. Otherwise, the request will be left hanging.

Follow the link above for more detail and examples.