Package-level declarations
Types
The CustomElementRegistry interface provides methods for registering custom elements and querying registered elements. To get an instance of it, use the window.customElements property. To create a scoped registry, use the CustomElementRegistry() constructor.
The CustomStateSet interface of the Document Object Model stores a list of states for an autonomous custom element, and allows states to be added and removed from the set.
The ElementInternals interface of the Document Object Model gives web developers a way to allow custom elements to fully participate in HTML forms. It provides utilities for working with these elements in the same way you would work with any standard HTML form element, and also exposes the Accessibility Object Model to the element.
The HTMLSlotElement interface of the Shadow DOM API enables access to the name and assigned nodes of an HTML
The The The The The The HTMLTemplateElement interface enables access to the contents of an HTML element.
ShadowRoot interface of the Shadow DOM API is the root node of a DOM subtree that is rendered separately from a document's main DOM tree.Properties
customElements read-only property of the Window interface returns a reference to the global CustomElementRegistry object, which can be used to register new custom elements and get information about previously registered custom elements.Functions
define() method of the CustomElementRegistry interface adds a definition for a custom element to the custom element registry, mapping its name to the constructor which will be used to create it.getName() method of the CustomElementRegistry interface returns the name for a previously-defined custom element.whenDefined() method of the CustomElementRegistry interface returns a Promise that resolves when the named element is defined.