Does Liquid have a "does not contain" or "not in array" operator?

Question

When calling items from an array in a Liquid template, how do you call does not contain or not in array?

David Jacquel · Accepted Answer · 2017-08-22T06:56:14.383

114

unless to the rescue !

Create an [A, B, C] array.

{% assign input = "A,B,C" | split:"," %}

unless print only if constrain is not met.

This prints nothing:

{% unless input contains 'A' %}No A{% endunless %}

This prints "No Z":

{% unless input contains 'Z' %}No Z{% endunless %}

edited Aug 22 '17 at 06:56

answered Jun 13 '15 at 20:09

David Jacquel

3

My problem is I can't do something like this: `{% if input contains 'A' and input does not contain 'Z' %}` – Corey Jan 07 '19 at 18:57
14

Use two nested conditions `{% if input contains 'A' %}{% unless input contain 'Z' %}` – David Jacquel Jan 07 '19 at 23:01

score 16 · Answer 2 · answered Apr 15 '20 at 15:53

16

you could do something like this:

{% if collection.tags contains 'tag' %}
{% else %}
  do stuff!
{% endif %}

answered Apr 15 '20 at 15:53

Lucas Paiano

2 Answers2