Understanding Local Variables in Express JS

Learn how to use local variables in Express JS

[vidhikumar]

Thank you DevSprout!!!! Before i clicked on this video, i was losing my patience.. but now im at peace

[tanayraj]

U just made everything so clear to me... I had lots of doubts regarding this concept and u just saved me..♥️

[shihab]

Super & nice explanation of Local veriables and Middleware. Using the Middleware helped me reducing repetion instead of passing 'key value pairs' to each of the Views separately. You got a new subscriber!

[robinkartik]

What a short, clear explanation. One more request to you is, please continue your Code with Node. Please please please please

[preciousadeyinka]

Thanks, for sharing Ian! It has never been clearer!

[lukes]

Thanks Ian, I was a bit confused as to what res.locals is. If I understand correctly, when you pass a variable through to your view it actually adds is to res.locals behind the scenes. Thank you for clearing that up.

[self-toughstudy]

Thanks. I am bulding my first project and there was a need to share variable value with every page. res.locals is a perfect solution of my problem.

[오도독-jn]

OMG… this video was so much helpful for me thanks

[cap.blue-sama]

Thanks buddy for the wonderful explanation!!!

[lazalaza]

Great tutorial! When would you use one over another (res.locals.x = z vs res.render('page123', x: z))? If I understood well, the latter one only makes it available on 'page123', whereas defining it with .locals makes it available everywhere. Of course, I'm talking about situations when 'y' is not being passed from a related callback and only existing in local scope. :)

[sumertheory]

how do i access greeting from client javascript?

[ShadowDrakken]

app.locals is also exposed to <%= %> in the same way. Why might you use res.locals over app.locals and vice versa?

[kadirramazn]

Can we use locals to show the current user informations? Will it be secure?

[briana]

When you said the client side I thought you were going to talk about a React app that is running inside a client folder or something. Can you use a local variable from an Express app to be used in a React app?

[shabbirhusain]

sir I am student of colt sir. when I an doing via sir way.it is showing me Current user not found

[AllenAndersonTaylor]

hey man, do you offer assistance to newbies? I'm trying to parse a server-side CSV and add it to my res.locals. When I load the page I can see the data in my console log, but not on the HTML page. I think it because of the promise isn't completing on time. Like the page is loading before the promise is complete. Any chance you can help me out?