public function DataDefinition::isList
public DataDefinition::isList()
Returns whether the data is multi-valued, i.e. a list of data items.
This is equivalent to checking whether the data definition implements the \Drupal\Core\TypedData\ListDefinitionInterface interface.
Return value
bool Whether the data is multi-valued.
Overrides DataDefinitionInterface::isList
File
- core/lib/Drupal/Core/TypedData/DataDefinition.php, line 114
Class
- DataDefinition
- A typed data definition class for defining data based on defined data types.
Namespace
Drupal\Core\TypedDataCode
public function isList() { return ($this instanceof ListDataDefinitionInterface); }
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https://api.drupal.org/api/drupal/core!lib!Drupal!Core!TypedData!DataDefinition.php/function/DataDefinition::isList/8.1.x