The TreeWalker.filter
read-only property returns a NodeFilter
that is the filtering object associated with the TreeWalker
.
When creating the TreeWalker
, the filter object is passed in as the third parameter, and its method NodeFilter.acceptNode()
is called on every single node to determine whether or not to accept it.
Syntax
nodeFilter = treeWalker.filter;
Example
var treeWalker = document.createTreeWalker(
document.body,
NodeFilter.SHOW_ELEMENT,
{ acceptNode: function(node) { return NodeFilter.FILTER_ACCEPT; } },
false
);
nodeFilter = treeWalker.filter; // document.body in this case
Specifications
Specification | Status | Comment |
DOMThe definition of 'TreeWalker.filter' 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 SpecificationThe definition of 'TreeWalker.filter' in that specification. | Obsolete | Initial definition. |
Browser compatibility
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.
Update compatibility data on GitHub
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
filter
|
Chrome
Full support 1 |
Edge
Full support 12 |
Firefox
Full support 4 |
IE
Full support 9 |
Opera
Full support 9 |
Safari
Full support 3 |
WebView Android
Full support 3 |
Chrome Android
Full support Yes |
Firefox Android
Full support 4 |
Opera Android
Full support 10.1 |
Safari iOS
Full support 3 |
Samsung Internet Android
Full support Yes |
Legend
- Full support
- Full support
See also
- The
TreeWalker
interface it belongs to.
TreeWalker.filter by Mozilla Contributors is licensed under CC-BY-SA 2.5.