Facebook喜欢用javascript提醒框的按钮回调？

Question

我想在用户成功点击Facebook Like按钮后显示一个警告框。我遇到了麻烦下面的代码工作：

<script type="text/javascript"> 
FB.Event.subscribe(edge.create, function() { 
    alert('You just liked the page!'); 
}); 
</script> 

Answer 1

edge.create必须加引号：

<script type="text/javascript"> 
FB.Event.subscribe('edge.create', function(href, widget) { 
    alert('You just liked the page!'); 
}); 
</script>