XML DOM setAttributeNode() Method

Complete Element Object Reference

Definition and Usage

The setAttributeNode() method adds a new attribute node.

If an attribute with that name already exists in the element, it is replaced by the new one. If the new attribute replaces an existing attribute, the replaced attribute node is returned, otherwise it returns null.

Syntax

elementNode.setAttributeNode(att_node)

Example

The following code fragment loads "books.xml" into xmlDoc using loadXMLDoc() and adds a "edition" attribute to all <book> elements:

xmlDoc=loadXMLDoc("books.xml");

x=xmlDoc.getElementsByTagName('book');
var newatt;

for (i=0;i<x.length;i++)
{
newatt=xmlDoc.createAttribute("edition");
newatt.value="first";
x[i].setAttributeNode(newatt);
}

//Output all "edition" attribute values
for (i=0;i<x.length;i++)
{
document.write("Edition: ");
document.write(x[i].getAttribute("edition"));
document.write("<br />");
}

Output:

Edition: first
Edition: first
Edition: first
Edition: first

Try-It-Yourself Demos

setAttributeNode() - Create and insert a new attribute node

Complete Element Object Reference

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