TreeWalker: parentNode() method

The TreeWalker.parentNode() method moves the current Node to the first visible ancestor node in the document order, and returns the found node. If no such node exists, or if it is above the TreeWalker’s root node, it returns null and the current node is not changed.

Syntax

parentNode()

Parameters

None.

Return value

A Node object or null.

Examples

const treeWalker = document.createTreeWalker(
  document.body,
  NodeFilter.SHOW_ELEMENT,
  {
    acceptNode(node) {
      return NodeFilter.FILTER_ACCEPT;
    },
  },
  false,
);
const node = treeWalker.parentNode(); // returns null as there is no parent

Specifications

Browser compatibility

See also

• The TreeWalker interface it belongs to.