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JavaScript

Posted by Brandon Benefield
Brandon Benefield
7,739 Points

How does express know to go to the error.pug page when using 'return next(err)'

The question says it all. Maybe I'm missing something here. Any help would be appreciated.

1 Answer

Charles Wanjohi
Charles Wanjohi
9,235 Points
Charles Wanjohi
Charles Wanjohi
9,235 Points

If you call next() function and pass an argument e.g next(arg), Express by default knows it should call the error handler function(middleware) . This is contrary to when you call the next () without passing any argument .It is the presence of argument that determines that the error handler should be called which renders the error page.Regards,

Brandon Benefield
Brandon Benefield
7,739 Points

While your answer really did not go into depth, it still pointed me in the right direction and I appreciate that.
Thank you.