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``round``
=========
The ``round`` filter rounds a number to a given precision:
.. code-block:: twig
{{ 42.55|round }}
{# outputs 43 #}
{{ 42.55|round(1, 'floor') }}
{# outputs 42.5 #}
The ``round`` filter takes two optional arguments; the first one specifies the
precision (default is ``0``) and the second the rounding method (default is
``common``):
* ``common`` rounds either up or down (rounds the value up to precision decimal
places away from zero, when it is half way there -- making 1.5 into 2 and
-1.5 into -2);
* ``ceil`` always rounds up;
* ``floor`` always rounds down.
.. note::
The ``//`` operator is equivalent to ``|round(0, 'floor')``.
Arguments
---------
* ``precision``: The rounding precision
* ``method``: The rounding method
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