Introduction

The action liquid tag allows LocomotiveCMS developers to run secure javascript code on the server side.

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What's the Javascript engine powering Actions?

No Google V8, no JavaScriptCore, no SpiderMonkey. Instead, we use Duktape, a lightweight and portable engine with Ruby bindings.

Here is a list of its capabilities:

  • read and write Liquid variables of the current context
  • read and write session variables
  • built-in functions to read/create/update content entries
  • built-in functions to send emails

Example:

{% assign string = 'Hello' %}

{% action "send an email to each" %}
  var string = getProp("string"); 
  string += ' world!';
  setProp("string", string);
{% endaction %}
                                
<p>{{string}}</p>