``join``
========

The ``join`` filter returns a string which is the concatenation of the items
of a sequence:

.. code-block:: twig

    {{ [1, 2, 3]|join }}
    {# returns 123 #}

The separator between elements is an empty string per default, but you can
define it with the optional first parameter:

.. code-block:: twig

    {{ [1, 2, 3]|join('|') }}
    {# outputs 1|2|3 #}

A second parameter can also be provided that will be the separator used between
the last two items of the sequence:

.. code-block:: twig

    {{ [1, 2, 3]|join(', ', ' and ') }}
    {# outputs 1, 2 and 3 #}

Arguments
---------

* ``glue``: The separator
* ``and``: The separator for the last pair of input items