Example

var sibling = node.nextSibling;

In the example above, if node has a sibling immediately after it (a node of any type, which shares its parent with node), the sibling variable will be a reference to that node; otherwise it will be null.

So in the following HTML example, the second li element is the nextSibling of the first, but has no nextSibling of its own:

<h2>Shopping list</h2>
<ul>
  <li>Chocolate</li>
  <li>More chocolate</li>
</ul>