Example

• Suppose you want to extract the value of the double element from this document:

  <?xml version="1.0"?>
  <methodResponse>
    <params>
      <param>
        <value><double>28657</double></value>
      </param>
    </params>
  </methodResponse>

• You need to evaluate the XPath expression string(/methodResponse/params/param/value/double)