Liquid Variables: assign, capture, increment, increment in Shopify
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Seeking to infuse dynamism and flexibility into your Shopify store’s design? Mastering Liquid variables is the key to unlocking a world of customization and personalized user experiences. This comprehensive guide will equip you with the knowledge to harness the power of assign, capture, increment, and decrement tags for creating truly interactive and engaging Shopify themes.
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Liquid Variables
4 types of Variable tags {#4-types-of-variable-tags}
Variable tags can be used to generate new Liquid variables.
assign
Can generate a new variable.
** <== Input**
{% assign my_variable = false %}
{% if my_variable != true %}
This statement is valid.
{% endif %}
** ==> Output**
This statement is valid.
Wrap a variable in quotations " to save it as a string.
** <== Input**
{% assign foo = "bar" %}
{{ foo }}
** ==> Output**
bar
capture
Can capture the string inside of the closing and opening tags and then assigns it to a variable. Variables generated through {% capture %} are strings.
** <== Input**
{% capture my_variable %}I am being captured.{% endcapture %}
{{ my_variable }}
** ==> Output**
I am being captured.
You are allowed to generate complicated strings using other variables created with assign by using capture.
** <== Input**
{% assign favorite_food = 'pizza' %}
{% assign age = 35 %}
{% capture about_me %}
I am {{ age }} and my favorite food is {{ favorite_food }}.
{% endcapture %}
{{ about_me }}
** ==> Output**
I am 35 and my favourite food is pizza.
increment
Able to generate a new number variable, and raises its value by one every time it is called. The initial value is 0.
** <== Input**
{% increment my_counter %}
{% increment my_counter %}
{% increment my_counter %}
** ==> Output**
0
1
2
Variables that are created through the increment tag are independent from variables, which are gennerated through assign or capture.
A variable called “var” is generated through assign in the example taken below. The increment tag is then used several times on a variable with the similar name. Note that the increment tag does not affect the value of “var” that was created through assign.
** <== Input**
{% assign var = 10 %}
{% increment var %}
{% increment var %}
{% increment var %}
{{ var }}
** ==> Output**
0
1
2
10
decrement
Able to generate a new number variable, and reduces its value by one every time it is called. The initial value is -1.
** <== Input**
{% decrement variable %}
{% decrement variable %}
{% decrement variable %}
** ==> Output**
-1
-2
-3
Similar to increment, variables declared inside decrement are also independent from variables, which are generated through assign or capture.
Uses of Liquid Variables
Once you have found out the variable you want to use, just insert it into a valid LookML parameter. You can use the specific Liquid variables that are defined below:
2 Types of Luquid Usage
There are 2 ways for you to make use of a Liquid variable:
1. Ouput Syntax: This is maybe the most popular way to use Liquid. In this method, you only need to enclose the Liquid variable in 2 curly braces.
2. Tag Syntax: It is for logical comparisons and other Liquid operations. In this method, please enclose the Liquid variable in a single curly brace and only 1 percent sign.
Conclusion
By mastering the use of assign, capture, increment, and decrement tags, you can harness the full power of Liquid variables to create dynamic and personalized Shopify themes. Have you utilized any of these Liquid variable techniques in your own Shopify store? We invite you to share your experiences and insights in the comments below!
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