TreeWalker: filter property
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.
Value
A NodeFilter
object.
Examples
js
const treeWalker = document.createTreeWalker(
document.body,
NodeFilter.SHOW_ELEMENT,
{
acceptNode(node) {
return NodeFilter.FILTER_ACCEPT;
},
},
false
);
nodeFilter = treeWalker.filter; // document.body in this case
Specifications
Specification |
---|
DOM Standard # dom-treewalker-filter |
Browser compatibility
BCD tables only load in the browser
See also
- The
TreeWalker
interface it belongs to.