TreeWalker: filter property
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The TreeWalker.filter
read-only property returns the NodeFilter
associated with the TreeWalker
.
When creating the TreeWalker
, the filter object is passed in as the third
parameter, and its method acceptNode()
is called on every
single node to determine whether or not to accept it.
Value
A NodeFilter
object.
Examples
js
const treeWalker = document.createTreeWalker(
document.body,
NodeFilter.SHOW_ELEMENT,
{
acceptNode(node) {
return NodeFilter.FILTER_ACCEPT;
},
},
);
nodeFilter = treeWalker.filter; // document.body in this case
Specifications
Specification |
---|
DOM # dom-treewalker-filter |
Browser compatibility
Report problems with this compatibility data on GitHubdesktop | mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
filter |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
See also
- The
TreeWalker
interface it belongs to.