Variables

Assign

Assign tag is used to assign a value to a variable.
When you assign a value to a variable, you will create a string.

{% assign profit = 100 %}

{{ profit }}

Capture

With this function you capture the string inside of the opening and closing tags and assigns it to a variable. Variables that you create using capture are stored as strings.

{% assign profit = 100 %}
{% capture profit_sentence %}
  Your profit is {{ profit }}.
{% endcapture %}

{{ profit_sentence }}

Register

Registers are used to store numbers and / or result of a calculation. This allows you to print the value or start some further calculations with the register.

Registers are local variables with some unique characteristics. Registers are created by using a dollar sign $ with a number from 0 to 39.

registers

📘

Let's assume that revenue is 200.
Let's assume that cost is -100.

We want to add up two values, revenue and cost. Therefore, we store both values in 1 register ($0). By printing $0, we automatically see the value the register contains.

{% $0+ revenue %}
{% $0+ cost %}

{{ $0 }}

It is possible to show the variables that were added by putting an equal sign.

Revenue: {% =$0+ revenue %}
Cost: {% =$0+ cost %}

Profit: {{ $0 }}

registers with input

Register can be used in combination with an input tag.

{% $0+input custom.asset.value %}

{{ $0 }}

Output