how to pass variable from controller to view in laravel code example

Example 1: passing data from controller to blade view laravel

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

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

Example 2: pass parameter to view laravel

Route::get('/', function () {
    return view('greeting', ['name' => 'James']);
});

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