public Tableselect::getInfo() Returns

Provides a form element for input of a URL. Properties: #default_value: A valid URL string

public static Element::isEmpty(array $elements) Indicates

public HtmlTag::getInfo() Returns

Provides a one-line text field form element. Properties: #maxlength: Maximum number of

public static Number::validateNumber(&$element, FormStateInterface $form_state

Provides a form element for input of a weight. Weights are integers used to indicate ordering, with larger numbers later in the order.

public static MachineName::valueCallback(&$element, $input, FormStateInterface

public Textfield::getInfo() Returns

public Search::getInfo() Returns the