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 Explorer and abort / cancel it if they are using other browsers so that it only runs for IE users ? The users here would all be on IE8 or higher versions so I would not need to cover IE7 and lower versions.

If I could tell which browser they are using that would be great but is not required.

Example function:

$('.myClass').on('click', function(event) {     // my function }); 

Answer 1

It's several years later, and the Edge browser now uses Chromium as its rendering engine.
Checking for IE 11 is still a thing, sadly.

Here is a more straightforward approach, as ancient versions of IE should be gone.

if (window.document.documentMode) {   // Do IE stuff } 

---

Here is my old answer (2014):

In Edge the User Agent String has changed.

/**  * detect IEEdge  * returns version of IE/Edge or false, if browser is not a Microsoft browser  */ function detectIEEdge() {     var ua = window.navigator.userAgent;      var msie = ua.indexOf('MSIE ');     if (msie > 0) {         // IE 10 or older => return version number         return parseInt(ua.substring(msie + 5, ua.indexOf('.', msie)), 10);     }      var trident = ua.indexOf('Trident/');     if (trident > 0) {         // IE 11 => return version number         var rv = ua.indexOf('rv:');         return parseInt(ua.substring(rv + 3, ua.indexOf('.', rv)), 10);     }      var edge = ua.indexOf('Edge/');     if (edge > 0) {        // Edge => return version number        return parseInt(ua.substring(edge + 5, ua.indexOf('.', edge)), 10);     }      // other browser     return false; } 

Sample usage:

alert('IEEdge ' + detectIEEdge()); 

Default string of IE 10:

Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; Trident/6.0) 

Default string of IE 11:

Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko  

Default string of Edge 12:

Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.71 Safari/537.36 Edge/12.0  

Default string of Edge 13 (thx @DrCord):

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2486.0 Safari/537.36 Edge/13.10586  

Default string of Edge 14:

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2486.0 Safari/537.36 Edge/14.14300  

Default string of Edge 15:

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36 Edge/15.15063  

Default string of Edge 16:

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36 Edge/16.16299  

Default string of Edge 17:

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36 Edge/17.17134  

Default string of Edge 18 (Insider preview):

Mozilla/5.0 (Windows NT 10.0; Win64; x64; ServiceUI 14) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36 Edge/18.17730  

Test at CodePen:

http://codepen.io/gapcode/pen/vEJNZN

Answer 2

Use below JavaScript method :

function msieversion()  {     var ua = window.navigator.userAgent;     var msie = ua.indexOf("MSIE ");      if (msie > 0) // If Internet Explorer, return version number     {         alert(parseInt(ua.substring(msie + 5, ua.indexOf(".", msie))));     }     else  // If another browser, return 0     {         alert('otherbrowser');     }      return false; } 

You may find the details on below Microsoft support site :

How to determine browser version from script

Update : (IE 11 support)

function msieversion() {      var ua = window.navigator.userAgent;     var msie = ua.indexOf("MSIE ");      if (msie > 0 || !!navigator.userAgent.match(/Trident.*rv\:11\./))  // If Internet Explorer, return version number     {         alert(parseInt(ua.substring(msie + 5, ua.indexOf(".", msie))));     }     else  // If another browser, return 0     {         alert('otherbrowser');     }      return false; }