public BubbleableMetadata::applyTo(array &$build)

Provides a base class for form element plugins. Form elements are a subset of render elements, representing elements for HTML forms, which can

public static BubbleableMetadata::createFromRenderArray(array

Provides a render element for a form. Plugin annotation @RenderElement("form")

Provides an interface for render element plugins. Render element plugins allow modules to declare their own Render API element types and specify

public static Weight::processWeight(&$element, FormStateInterface $form_state

Defines an interface for turning a render array into a string. Hierarchy interface

public static Actions::processActions(&$element, FormStateInterface $form_state

public MarkupTrait::__toString() Returns

public Renderer::renderPlaceholder($placeholder, array $elements)