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❮ Dom Nodes Add Met Text Deletedata ❯

XML DOM replaceChild() Method


Definition and Usage

The replaceChild() method replaces a child node with another.

If successful, the function returns the replaced node; if it fails, it returns NULL.

Syntax

Parameter Description
new_node Required. Specifies the new node.
old_node Required. Specifies the child node to be replaced.

Example

The following code snippet uses loadXMLDoc() to load "books.xml" into xmlDoc and replaces the first <book> node:

xmlDoc = loadXMLDoc("books.xml");

x = xmlDoc.documentElement;

// Create book element, title element, and text node
newNode = xmlDoc.createElement("book");
newTitle = xmlDoc.createElement("title");
newText = xmlDoc.createTextNode("A Notebook");

// Append text node to title node
newTitle.appendChild(newText);
// Append title node to book node
newNode.appendChild(newTitle);

y = xmlDoc.getElementsByTagName("book")[0];
// Replace the first book node with the new node
x.replaceChild(newNode, y);

z = xmlDoc.getElementsByTagName("title");
for (i = 0; i < z.length; i++) {
    document.write(z[i].childNodes[0].nodeValue);
    document.write("<br>");
}

❮ Dom Nodes Add Met Text Deletedata ❯