:navigation-title: iterator.keys
.. include:: /Includes.rst.txt

.. _fluidtypo3-vhs-iterator-keys:

==============================================
iterator.keys ViewHelper `<vhs:iterator.keys>`
==============================================


Gets keys from an iterator.


.. _fluidtypo3-vhs-iterator-keys_arguments:

Arguments
=========


.. _iterator.keys_subject:

subject
-------

:aspect:`DataType`
   mixed

:aspect:`Required`
   false
:aspect:`Description`
   Input to work on - Array/Traversable/...

.. _iterator.keys_as:

as
--

:aspect:`DataType`
   string

:aspect:`Required`
   false
:aspect:`Description`
   Template variable name to assign; if not specified the ViewHelper returns the variable instead.