public FormStateValuesTrait::isValueEmpty($key)
Implements \Drupal\Core\Form\FormStateInterface::isValueEmpty()
File
- core/lib/Drupal/Core/Form/FormStateValuesTrait.php, line 70
Class
- FormStateValuesTrait
- Provides methods to manage form state values.
Namespace
Drupal\Core\Form
Code
1 2 3 4 5 | public function isValueEmpty($key) { $exists = NULL; $value = NestedArray::getValue($this->getValues(), (array) $key, $exists); return !$exists || empty($value);} |
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