Why absolute-path is not working in my project?

Question

the hierarchy of my files looks something like:

BACKEND(COMPLETE)
->Routers
   ->userrouter.js
->login.html

I wanted the access of my login.html file in userrouter.js for which I copied the Path(absolute) of the login.html file.

But I am getting this error:

path must be absolute or specify root to res.sendFile()

My Code:

function loginUser(req,res)
{
res.sendFile('C:\Users\ASUS\Desktop\backend(complete)\login.html');
res.end();
}

Answer 1

Try modifying C:\Users\ASUS\Desktop\backend(complete)\login.html to C:/\Users/\ASUS/\Desktop/\backend(complete)/\login.html

Try using path (path.join) npm package which Node provides out of the box to avoid this confusion irrespective of the OS.