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 |
---|---|---|
DOM The 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 Specification The definition of 'TreeWalker.filter' in that specification. |
Recommendation | Initial definition. |
Browser compatibility
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 |
See also
- The
TreeWalker
interface it belongs to.