.. _functx_distinct-element-names:

=============================
functx:distinct-element-names
============================= 

The distinct names of all elements in an XML fragment

Description
~~~~~~~~~~~
The functx:distinct-element-names function returns the distinct set of element 
names that exist in $nodes or among the descendants of $nodes.

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   * - **Parameters**
     - **Description**
   * - nodes:node()
     - the root(s) to start from

Examples
~~~~~~~~
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   * - **XPath**
     - **Results**
   * - functx:distinct-element-names($in-xml)
     - ('authors', 'author', 'fName', 'lName')
   * - functx:distinct-element-names($in-xml/author[1])
     - ('author', 'fName', 'lName')

Depends On
~~~~~~~~~~
* :ref:`functx_path-to-node`.

See Also
~~~~~~~~

.. toctree::
   :titlesonly:
   :glob:

* :ref:`functx_distinct-attribute-names`.
* :ref:`functx_distinct-element-paths`.