How can I determine which version of IE a user is running in JavaScript?

Question

In some existing code there is a test to see if the user is running IE, by checking if the object Browser.Engine.trident is defined and returns true.

But how can I deter

Answer 1

Well... here is what I came up after thinking for a while. just wanted to find a simple solution.

if (navigator.appName == 'Microsoft Internet Explorer') {
        // Take navigator appversion to an array & split it 
        var appVersion = navigator.appVersion.split(';');
        // Get the part that you want from the above array  
        var verNumber = appVersion[1];

        alert(verNumber);
}

It returns ex:- MSIE 10.0, MSIE 9.0, MSIE 8.0

further extend, if you want to check if it's "lower than" or "greater than" IE version, you can slightly modify

if (navigator.appName == 'Microsoft Internet Explorer') {
        var appVersion = navigator.appVersion.split(';');
        var verNumber = appVersion[1];
        // Reaplce "MSIE " from the srting and parse it to integer value        
        var IEversion = parseInt(verNumber.replace('MSIE ', ''));

        if(IEversion <= 9){
            alert(verNumber);
        }
}

got the base idea from w3schools, hope this will help some one... :D