Thymeleaf - How to add checked attribute to input conditionally

Question

As you know, input component has an attribute, checked to whether mark the checkbox as enabled by default or not.

Answer 1

After digging a little, I found out the solution. There is th:checked attribute for that purpose.

This works:

This fails:

If checked="" is set to input component, it's marked checked. This method is valid for custom attributesth:attr also. Consider following example:

If flag is false, it's replaced with: