Check if user is using IE

Question

I am calling a function like the one below by click on divs with a certain class.

Is there a way I can check when starting the function if a user is using Internet

Answer 1

Using modernizr

Modernizr.addTest('ie', function () {
    var ua = window.navigator.userAgent;
    var msie = ua.indexOf('MSIE ') > 0;
    var ie11 = ua.indexOf('Trident/') > 0;
    var ie12 = ua.indexOf('Edge/') > 0;
    return msie || ie11 || ie12;
});