如何通过代码处理facebook注销按钮

<button id="logoutButton">注销</button>

<script>
  window.fbAsyncInit = function() {
    FB.init({
      appId      : 'YOUR_APP_ID',
      cookie     : true,
      xfbml      : true,
      version    : 'v15.0'
    });
      
    FB.AppEvents.logPageView();   
  };
    
  (function(d, s, id){
     var js, fjs = d.getElementsByTagName(s)[0];
     if (d.getElementById(id)) {return;}
     js = d.createElement(s); js.id = id;
     js.src = "https://connect.facebook.net/en_US/sdk.js";
     fjs.parentNode.insertBefore(js, fjs);
   }(document, 'script', 'facebook-jssdk'));
</script>

document.getElementById('logoutButton').addEventListener('click', function() {
  FB.logout(function(response) {
    // 处理注销后的逻辑
    if (response.status === 'unknown') {
      // 用户已成功注销
      console.log('用户已注销');
    } else {
      // 注销失败或发生错误
      console.log('注销失败或发生错误');
    }
  });
});