Liquid includes many logical and comparison operators.

Basic operators

== equals
!= does not equal
> greater than
< less than
>= greater than or equal to
<= less than or equal to
or logical or
and logical and

For example:

{% if product.title == "Awesome Shoes" %}
  These shoes are awesome!
{% endif %}

You can use multiple operators in a tag:

{% if product.type == "Shirt" or product.type == "Shoes" %}
  This is a shirt or a pair of shoes.
{% endif %}


contains checks for the presence of a substring inside a string.

{% if product.title contains 'Pack' %}
  This product's title contains the word Pack.
{% endif %}

contains can also check for the presence of a string in an array of strings.

{% if product.tags contains 'Hello' %}
  This product has been tagged with 'Hello'.
{% endif %}

contains can only search strings. You cannot use it to check for an object in an array of objects.

© 2005, 2006 Tobias Luetke
Licensed under the MIT License.