RootEditableOptions

A description of the editable root element to create, or an existing DOM element to use.

Accepted forms:

• A tag name string (e.g. 'h1').
• A ViewRootElementDefinition object.
• An existing HTMLElement. The element is used as-is — createEditable() returns the same element instead of creating a new one, so callers do not need to append it to the DOM.

When omitted, a default <div> is created.

Note: an HTMLElement value is local to this client. It cannot be replicated through real-time collaboration, so it is not persisted with the root. Other clients calling createEditable() for the same root receive a fresh element built from the canonical descriptor (or the default <div>), unless they pass their own HTMLElement as well.

The accessible label text describing the editable to the assistive technologies.

Placeholder for the editable element. If not set, placeholder value from the editor configuration will be used (if it was provided).