Extract value of attribute node via XPath

Question

How can I extract the value of an attribute node via XPath?

A sample XML file is:

Answer 1

To get just the value (without attribute names), use string():

string(//Parent[@id='1']/Children/child/@name)

The fn:string() fucntion will return the value of its argument as xs:string. In case its argument is an attribute, it will therefore return the attribute's value as xs:string.