How can I use multiple conditions (and, or) in thymeleaf th:if

Question

When I use thymeleaf th:if , I want to sum this code:

th:if=${lang.equals('A') or lang.equals('B')}.

I use || , the "or", but it is not used.

It works in spring framework, thymeleaf:

th:if=${lang.equals('A')
th:if=${lang.equals('B')

I want to sum this code.

th:if=${lang.equals('A') or lang.equals('B')}

Answer 1

You can combine them

th:if="${lang == 'A' OR lang == 'B'}"

Answer 2

Try this one (PS- Please ensure that you're putting the double-inverted commas carefully in starting and ending )

th:if="${lang=='A'} and ${lang=='B'}"