Tags

Last updated Oct 8, 2026 View as Markdown

A for loop renders its else block when it has no items, also after an offset that skips all items and for a range such as (3..1). See for.
cycle values can contain a colon, for example {% cycle '10:00', '14:00' %}. See cycle.
if and unless compare strings that contain and or or, for example {% if title == 'art and design' %}.

Filters

sum adds the numbers in an array, or the values of one property. See sum.
default without an argument returns an empty string for nil, false and empty strings. See default.
json prints the JSON of a value directly. Numbers, booleans and nil print without quotes, so the output works inside a <script> tag. See json.