Passing data from controller to view in Laravel code example

Example 1: laravel pass view with data

return view("blog", ["posts"=>$posts]);
Or:
return view("blog", compact("posts"));

Example 2: passing data from controller to blade view laravel

public function index(Request $request)
{
  ....

  return view('pages.eventPage', compact('id', 'event', 'n'));
}

Example 3: passing data from controller to blade view laravel

@for($i = 1; $i < count($pics); $i++)
<li data-target="#carousel-example-generic" data-slide-to="{{ $i }}"></li>
@endfor