provide filter condition in autocomplet field in drupal form using property code example

Example 1: provide filter condition in autocomplet field in drupal form using property

configuration['handler_settings'];
    if (!isset($handler_settings['filter'])) {
      return $query;
    }
    $filter_settings = $handler_settings['filter'];
    foreach ($filter_settings as $field_name => $value) {
      $query->condition($field_name, $value, '=');
    }
    return $query;
  }

}

Example 2: provide filter condition in autocomplet field in drupal form using property

$form['my_element'] = [
  '#type' => 'entity_autocomplete',
  '#target_type' => 'node',
  '#selection_handler' => 'default:node_by_field',
  '#selection_settings' => [
    'target_bundles' => ['article'],
    'filter' => ['field_dummy_filter' => $dummy_field_value],
  ],
];