Determine IE browser using JavaScript

If ("\ v" = "v") // this judgment is true only in IE, including IE 8.

My previous method, 32-byte version:

Try {IE = window =! 1} catch (e) {IE =! 0}

It is very effective, isn't it? This technique is usually applied to the library/hack proof. But if you think it is enough to use execScript for judgment, you should consider this situation:

Top ["execScript"] = null

Of course, we also need to consider that the class library also implements the execScript Method for other browsers.

The methods listed on Ajaxian.com that use execScript to Determine IE are as follows:

Iedesktop.exe cScript? 1:0