.. _functx_value-intersect:

======================
functx:value-intersect
====================== 

The intersection of two sequences of values

Description
~~~~~~~~~~~
The functx:value-intersect function returns the intersection of the values in 
two sequences (values that appear in both sequences) in an 
implementation-defined order. It removes duplicates. This function is useful 
because the built-in intersect operator only works on nodes, not atomic values.

.. list-table::
   :widths: 40 60
   :header-rows: 1

   * - **Parameters**
     - **Description**
   * - arg1:string()
     - the first sequence
   * - arg2:string()
     - the second sequence

Examples
~~~~~~~~
.. list-table::
   :widths: 50 50
   :header-rows: 1

   * - **XPath**
     - **Results**
   * - functx:value-intersect((1,2),(2,3))
     - 2
   * - functx:value-intersect((1,2,3),(2,3,4))
     - (2, 3)
   * - functx:value-intersect((1,2,2,3),(2,3))
     - (2, 3)
   * - functx:value-intersect((1,2,2,3),())
     - ()

See Also
~~~~~~~~

.. toctree::
   :titlesonly:
   :glob:

* :ref:`functx_value-union`.
* :ref:`functx_value-except`.