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Liquid has access to many logical and comparison operators. You can use operators to create logic with control flow tags.

Basic operators

Operator Function
== equals
!= does not equal
> Shorts Classics Shorts Classics Classics Classics Shorts greater than
< less than
>= greater than or equal to
<= Classics Shorts Classics Classics Classics Shorts Shorts less than or equal to
Classics Classics Shorts Classics Classics Shorts Shorts or condition A or condition B
and condition A and condition B

For example:

{% if customer.has_account ==Shorts Classics Shorts Classics Shorts Classics Classics true %}
  Welcome back to our store!
{% endif %}

You can do multiple comparisons in a tag using the andDress Rodriguez Narciso winter Casual Boutique xBq8HPU and or operators:

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

contains

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

Classics Classics Shorts Shorts Shorts Classics Classics {% if customer.email contains "shopify.com" %}
  Hey there, Shopify employee!
{% endif %}

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

Classics Shorts Classics Shorts Shorts Classics Classics {% if product.tags contains "outdoor" %}
  This product is great for using outdoors!
{% endif %}

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

Shorts Shorts Shorts Classics Classics Classics Classics Order of operations

In tags with more than one and or or operator, operators are checked in order from right to left. You cannot change the order of operations using parentheses — parentheses are invalid characters in Liquid and will prevent your tags from working.

{% if true or false Classics Shorts Shorts Classics Classics Shorts Classics and false %}
  This evaluates to true, since the 'and' condition is checked first.
{% endif %}
{% if true andShorts Shorts Shorts Classics Classics Classics Classics false and false or true %}
  This evaluates to false, since the tags are checked like this:

  true and (false and (false or true))
  true and (false and true)
  true and false
  false
{% endif %}

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