The TreeWalker.root read-only property returns the node that is the root of what the TreeWalker traverses.
root = TreeWalker.root;
var treeWalker = document.createTreeWalker(
document.body,
NodeFilter.SHOW_ELEMENT,
{ acceptNode: function(node) { return NodeFilter.FILTER_ACCEPT; } },
false
);
root = treeWalker.root; // document.body in this case
| Specification | Status | Comment |
|---|---|---|
| DOM The definition of 'TreeWalker.root' in that specification. | Living Standard | No change from Document Object Model (DOM) Level 2 Traversal and Range Specification |
| Document Object Model (DOM) Level 2 Traversal and Range Specification The definition of 'TreeWalker.root' in that specification. | Obsolete | Initial definition. |
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | 1.0 | (Yes) | 2.0 (1.8.1) | 9.0 | 9.0 | 3.0 |
| Feature | Android | Edge | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | 1.0 (1.8.1) | (Yes) | 9.0 | 3.0 |
TreeWalker interface.
© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/TreeWalker/root