How can I use Thymeleaf th:if to call javascript function without onclick?

Question

I am building Login page with Spring boot and thymeleaf. I pass the opcode using model attribute. And I want to use it for th:if to make condition to call javascript function automatically(meaning: without any click). Here is my code under.

<a th:if="${opcode == 1}" th:href="'javascript:setlocation()'"></a>

<script>
    function setlocation(){
        var msg = alert('Loss of location information found. Turning into setting page...');
        location.href='/setlocation';
    }
</script>

Answer 1

Put the th:if on the script itself. For example:

<script th:if="${opcode == 1}">
    alert('Loss of location information found. Turning into setting page...');
    location.href='/setlocation';
</script>