XPath Support

XML builder implements parts of the DOM specification to allow running XPath queries against it. The DOM implementation does not currently support XML namespaces.

For example, by using the xpath module:

var builder = require('xmlbuilder');
var xpath = require('xpath');

var doc = builder.create('book')
  .ele('title')
    .txt('The Book')
  .doc();

var nodes = xpath.select('//title', doc); // pass the XML document to XPath

console.log(nodes[0].localName); // 'title'
console.log(nodes[0].firstChild.data); // 'The Book'
console.log(nodes[0].toString()); // <title>The Book</title>