Create a node programmatically in Drupal 8

Here an example for create node programmatically in Drupal 8

Node type : article
$language = \Drupal::languageManager()->getCurrentLanguage()->getId();
$node = \Drupal\node\Entity\Node::create(array(
          'type' => 'article',
          'title' => 'The title',
          'langcode' => $language,
          'uid' => 1,
          'status' => 1,
          'body' => array('The body text'),
          'field_date' => array("2000-01-30"),
            //'field_fields' => array('Custom values'), // Add your custon field values like this
    ));
$node->save();