How to test (true/false) for mobile IE ONLY on Windows Phone 7 or greater in JavaScript?

How to test (true/false) for mobile IE, or Edge, ONLY on Windows Phone 7 or greater Windows Phone, in JavaScript, but not catch Chrome, Firefox, or nor any Desktop browsers (Not even desktop IE or Edge)?

Plain vanilla JavaScript. Please, No jQuery.

I have:

if (navigator.userAgent.match(/Windows Phone/i)) 
    {

    };

But I know it won't work, properly.