Kloport

## get_current_language
\Drupal::languageManager()->getCurrentLanguage()->getId();

## Drupal 8 : Get taxonomy term
$term = Term::load($node->get('field_...')->target_id);
$term->getName();

## Drupal 8 : Load multiple entities
$nodes = \Drupal::entityTypeManager()->getStorage('node')->loadMultiple($nids);

## load_entity
$node = \Drupal::entityTypeManager()->getStorage('node')->load($nid);

## query_db_for_entities
$query = \Drupal::entityQuery('node')
  ->condition('status', 1) // published
  ->condition('type', 'article')
  ->condition('langcode', $langcode)
  ->range(0, 10)
  ->sort('created', 'DESC');

$nids = $query->execute();

## Drupal 8 : Create link (II)
$link = \Drupal\Core\Link::fromTextAndUrl($text, $url);

## Drupal 8 : Create link
use Drupal\Core\Url;
$url = Url::fromUri('http://www.example.com/');
$external_link = \Drupal::l(t('External link'), $url);

## create_link_from_route
use Drupal\Core\Url;
$url = Url::fromRoute('route.name');
$internal_link = \Drupal::l(t('Route link'), $url);

## update_entities_programmatically
try {
  \Drupal::entityDefinitionUpdateManager()->applyUpdates();
}
catch (EntityStorageException $e) {
  print_r($e);
}

## Set components folder
{
  "directory" : "app/vendors"
}
	$term = Term::load($node->get('field_...')->target_id);
	$term->getName();
	$query = \Drupal::entityQuery('node')
	->condition('status', 1) // published
	->condition('type', 'article')
	->condition('langcode', $langcode)
	->range(0, 10)
	->sort('created', 'DESC');

	$nids = $query->execute();
	use Drupal\Core\Url;
	$url = Url::fromUri('http://www.example.com/');
	$external_link = \Drupal::l(t('External link'), $url);
	use Drupal\Core\Url;
	$url = Url::fromRoute('route.name');
	$internal_link = \Drupal::l(t('Route link'), $url);
	try {
	\Drupal::entityDefinitionUpdateManager()->applyUpdates();
	}
	catch (EntityStorageException $e) {
	print_r($e);
	}