currentNode

Summary

Sets or retrieves where the current node in a filtered TreeWalker hierarchy is positioned.

Property of dom/TreeWalkerdom/TreeWalker

Syntax

var node = walker.currentNode;
walker.currentNode = value;

Return Value

Returns an object of type DOM NodeDOM Node

The currentNode of the TreeWalker object.

Examples

<div id="divcontent">
<p>Some text</p>
<b>Bold text</b>
</div>

<script type="text/javascript">

var rootnode=document.getElementById('divcontent');
var walker=document.createTreeWalker(rootnode, NodeFilter.SHOW_ELEMENT, null, false);

//Alert the starting node Tree Walker currently points to (root node)
alert(walker.currentNode.tagName) //alerts DIV (with id=divcontent)

//Step through and alert all child nodes
while (walker.nextNode())
alert(walker.currentNode.tagName) //alerts P, SPAN, and B.

//Go back to the first child node of the collection and alert it
walker.currentNode=rootnode; //reset TreeWalker pointer to point to root node
alert(walker.firstChild().tagName); //alerts P

</script>

Notes

Remarks

currentNode will never return null in Windows Internet Explorer 9, even when the traversing method returns null.

Syntax

Standards information

• Document Object Model (DOM) Level 2 Traversal and Range Specification, Section 1.2

Related specifications

DOM

Living Standard

Attributions

• Mozilla Developer Network : [TreeWalker.currentNode Article]

• Microsoft Developer Network: [currentNode Property Article]