trim
The trim filter strips whitespace (or other characters) from the beginning and end of a string:
{{ '  I like Twig.  '|trim }}
{# outputs 'I like Twig.' #}
{{ '  I like Twig.'|trim('.') }}
{# outputs '  I like Twig' #}
{{ '  I like Twig.  '|trim(side='left') }}
{# outputs 'I like Twig.  ' #}
{{ '  I like Twig.  '|trim(' ', 'right') }}
{# outputs '  I like Twig.' #}
Arguments
- 
character_mask: The characters to strip
- 
side: The default is to strip from the left and the right (both) sides, but left and right will strip from either the left side or right side only
    © 2009–2018 by the Twig Team
Licensed under the three clause BSD license.
The Twig logo is © 2010–2020 Symfony
    https://twig.symfony.com/doc/2.x/filters/trim.html