Detect Metro UI Version of IE

Question

What\'s the fastest method, to detect User-Agent as metro UI version of internet-explorer >=10 ?

Answer 1

Thanks John Rajakumar and Alexis Pigeon. I was able to use your Metro IE check as the basis to load a separate CSS style sheet for Metro tablets (MS Surface). To add a bit more certainty in my mind, I used cssuseragent to detect IE10 first, and then combined both tests in a final yepnope test.

var IEmetrotest = ((cssua.userAgent.ie > 9) && (metrotest()));
yepnope({
    test: IEmetrotest,
    yep : ['ie_metro.css']
    });

Tested it in Browserstack and it's working as expected. (I would have up-ticked you, but don't have enough points yet.)

// Minor revisions to isBrowserSupportPlugin() previously posted
// Renamed function to metrotest() and inverted the returned value. 
var errorName = null;
function metrotest() {
    var supported = null; 
    try {
        new ActiveXObject("");
    }
    catch (e) {
        // FF has ReferenceError here
        errorName = e.name; 
    }     
    try {
        supported = !!new ActiveXObject("htmlfile");
    } catch (e) {
        supported = false;
    }
    if(errorName != 'ReferenceError' && supported==false){
        supported = false;
    }else{
        supported =true;
    }
    return !supported;
}