 only set in fragment and trusted HTML vnodes, and it&#39;s <code>undefined</code> in all other vnode types. It defines the number of DOM elements that the vnode represents (starting from the element referenced by the <code>dom</code> property).</td>
</tr>
<tr>
<td><code>state</code></td>
<td><code>Object?</code></td>
<td>An object that is persisted between redraws. It is provided by the core engine when needed. In POJO component vnodes, the <code>state</code> inherits prototypically from the component obje