How to check that the user has logged into mini apps from VK?

Question

PHP

I have code:

<script src="https://unpkg.com/@vkontakte/vk-bridge/dist/browser.min.js"></script>
<script>
async function yy() {
  vkBridge.send("VKWebAppGetUserInfo").then(data => {
    return document.write('3');
  });
  document.write('2');
}
yy();
</script>

For some reason, I always have true ie. it seems that return worked, but for some reason it didn't display '3', and if '3' didn't output, then why didn't it display '2'?
Please, help!
thanks in advance!