1st go to web.php you can see auth routing . Here route is method and this is special routing
where define this routes?
\vendor\laravel\framework\src\Illuminate\Routing\Router.php
You can see a class Router. On this class routes method is available
You can see a Auth function
we know that there are 3 rules of routing:
1) url,
2) URL::to
3) route
on this function you can see how define URL with route
SO for login page
showLoginForm function is working.
But after checking loginController we can't see showLoginForm fucntion.
You can see AuthenticatesUsers this is not a method and this not a function this is a trait.
see on this AuthenticatesUsers we can see this function.
Now you can understand where is view file go to recourse> auth> login.blade.php
