explain laravel Route::get code example

Example 1: laravel route

Route::get('user/{id}', function ($id) {
    return 'User '.$id;
});

Example 2: laravel route

Route::view('/welcome', 'welcome');

Route::view('/welcome', 'welcome', ['name' => 'Taylor']);

Example 3: laravel route

Route::get('posts/{post}/comments/{comment}', function ($postId, $commentId) {
    //
});