How can I run javascript after user login in joomla 3?

I try to use this function in a plugin, but is not working, maybe because javascript doesn't have time to execute after login an I end up redirected to homepage

 public function onUserAfterLogin($text) {
    $app = JFactory::getApplication();
    
    $document = JFactory::getDocument();
    $document->addScriptDeclaration('document.addEventListener("message", function(event) {
          alert("test");
        });
    ');
} 

I have tried with even with echo

echo '<script type="text/javascript">
   alert("test");
</script>';