Filters

last

The last filter returns the last "element" of a sequence, a mapping, or a string.

{{ [1, 2, 3, 4] | last }}
{# outputs 4 #}

{{ { a: 1, b: 2, c: 3, d: 4 } | last }}
{# outputs 4 #}

{{ '1234' | last }}
{# outputs 4 #}

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keys

The keys filter returns the keys of an array.

length

The length filter returns the number of items of a sequence or mapping, or the length of a string.