TIL.dev

&lt;% %&gt;: Executes the Ruby code within the brackets but does not print the result to the template.
&lt;%= %&gt;: Executes the Ruby code and prints the result to the template, with HTML escaping.
&lt;%== %&gt;: Executes the Ruby code and prints the result to the template without HTML escaping.

Encountered <%== pagy_info(@pagy) %> today and was wondering that the double equal (==) mean

Here is what I found:

<% %>: Executes the Ruby code within the brackets but does not print the result to the template.
<%= %>: Executes the Ruby code and prints the result to the template, with HTML escaping.
<%== %>: Executes the Ruby code and prints the result to the template without HTML escaping.

So, in an example that prompted me to search, pagy_info(@pagy) is being called to generate pagination information, and the == ensures that the HTML generated by pagy_info is rendered as-is in the view, allowing for proper display of pagination links or information without escaping the HTML tags.