Warning Twig version 2.x is no longer maintained.
first
The first
filter returns the first "element" of a sequence, a mapping, or
a string:
1 2 3 4 5 6 7 8
{{ [1, 2, 3, 4]|first }}
{# outputs 1 #}
{{ { a: 1, b: 2, c: 3, d: 4 }|first }}
{# outputs 1 #}
{{ '1234'|first }}
{# outputs 1 #}
Note
It also works with objects implementing the Traversable interface.