actionscript-3 - User Agent is not accessible in Internet Explorer 8 using ActionScript 3

Question

I am using the code below to find the User Agent using ActionScript 3:

var userAgent:String = ExternalInterface.call("navigator.userAgent.toString");

The code is working in Firefox 13, Google Chrome & Opera, but the User Agent value as null in IE8.

Is there any code snippet that will work here or any other way to implement this?

Answer 1

toString是不必要的，因为 userAgent 是一个字符串属性。请改用此语法：

var userAgent:String = ExternalInterface.call("function(){return navigator.userAgent}")