W3cubDocs

/Web APIs

TreeWalker: root property

The TreeWalker.root read-only property returns the node that is the root of what the TreeWalker traverses.

Value

A Node object.

Examples

js

const treeWalker = document.createTreeWalker(
  document.body,
  NodeFilter.SHOW_ELEMENT,
  {
    acceptNode(node) {
      return NodeFilter.FILTER_ACCEPT;
    },
  },
  false,
);
root = treeWalker.root; // document.body in this case

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
root 1 12 4 9 9 3 3 18 4 10.1 3 1.0

See also

© 2005–2023 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/TreeWalker/root