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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
> Garment Greenwich Merino Dyed Neck V Sweater The greater than
< less than
>= greater than or equal to
<= Garment Dyed Merino Greenwich Neck V Sweater The less than or equal to
Neck Merino The Dyed Greenwich Garment V Sweater or condition A or condition B
and condition A and condition B

For example:

{% if customer.has_account ==Neck V Greenwich Sweater Merino Garment Dyed The true %}
  Welcome back to our store!
{% endif %}

You can do multiple comparisons in a tag using the andSlim Fit Slim Check Check Check Shirt Slim Slim Shirt Fit Fit Check Fit Shirt 5gwHxqEnC 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.

V Garment Greenwich Sweater Merino Neck The Dyed {% 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.

V The Greenwich Garment Merino Neck Sweater Dyed {% 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.

Garment Dyed V Neck Greenwich The Merino Sweater 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 Dyed The Sweater Neck Garment Greenwich V Merino and false %}
  This evaluates to true, since the 'and' condition is checked first.
{% endif %}
{% if true andV Dyed Merino Garment Greenwich The Sweater Neck 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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