fields

/* Views exposed filter: appropriate field widths */
.views-exposed-form #edit-nid {
  max-width: 10ch;
}

  public static function isApplicable(FieldDefinitionInterface $field_definition) {
    if (isset($field_definition->getDisplayOptions('form')['type'])) {
      return $field_definition->getDisplayOptions('form')['type'] == 'slot_content_weights';
    }

    return FALSE;
  }

$form['nodes'] = [
    '#title' => $this->t('Select articles'),
    '#type' => 'entity_autocomplete',
    '#target_type' => 'node',
    '#tags' => TRUE,
    '#selection_handler' => 'default',
    '#selection_settings' => ['target_bundles' => ['article']],
    '#default_value' => $default_nodes,
];

$form['nodes'] = [
    '#title' => $this->t('Select articles'),
    '#type' => 'entity_autocomplete',
    '#target_type' => 'node',
    '#maxlength' => 1024,
    '#tags' => TRUE,
    '#selection_handler' => 'default',
    '#selection_settings' => ['target_bundles' => ['article']],
    '#default_value' => $default_nodes,
];

$field_render_array = $entity->{$field_name}->view([
  'type' => 'default_formatter', // Replace with desired formatter type.
  'label' => 'hidden', // If you want to hide the label of the field (optional).
  'settings' => [
    'trim_length' => 100, // Example for textfields: Trim the text to 100 characters.
  ],
]);

$raw_value = $entity->my_text_field->value;
echo $raw_value;  // Outputs the raw data

$processed_value = $entity->my_text_field->processed;
echo $processed_value;  // Outputs the processed and safe-to-display data

/**
 * Defines the 'password' entity field type.
 *
 * @FieldType(
 *   id = "password",
 *   label = @Translation("Password"),
 *   description = @Translation("An entity field containing a password value."),
 *   no_ui = TRUE,
 * )
 */