Drupal 8 basic Custom work

• To get the current path or arg(1) etc.

     $request = \Drupal::request();

$current_path = $request->getPathInfo(); $path_args = explode('/', $current_path); $zero_argument = $path_args[0]; $first_argument = $path_args[1]; $second_argument = $path_args[2]; $third_argument = $path_args[3];

• TO Get Node pathalias.

use Drupal\node\Entity\Node;

function bootstrap_preprocess_node(&$variables) { $node = $variables['elements']['#node'];

$node_detail = $node->toArray(); $node_detail['path'][0]['alias'];

}