How to detect IE11

Question

When I want to detect IE I use this code:

function getInternetExplorerVersion()
{
  var rv = -1;
  if (navigator.appName == 'Microsoft Internet Explorer')
  {
    var ua = navigator.userAgent;
    var re  = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
    if (re.exec(ua) != null)
      rv = parseFloat( RegExp.$1 );
  }
  return rv;
}
function checkVersion()
{
  var msg = "You're not using Internet Explorer.";
  var ver = getInternetExplorerVersion();

  if ( ver > -1 )
  {
    msg = "You are using IE " + ver;
  }
  alert( msg );
}

But IE11 is returning "You're not using Internet Explorer". How can I detect it?

User · Answer

Only for IE Browser   var ie    NotIE     IE5-11  Edge      if    document compatMode             if     ActiveXObject  in window      ie    EDGE           if    document uniqueID               if  ActiveXObject  in window  amp  amp   window createPopup    ie   11                else if   document all                       if   window atob  ie   10                       else if   document addEventListener   ie   9                       else if   document querySelector  ie   8                       else if   window XMLHttpRequest  ie   7                       else if   document compatMode  ie   6                       else ie   5                                      use alert ie    Testing     x000D   x000D  var browserVersionExplorer    function     x000D      var ie     lt s gt NotIE lt  s gt    x000D          me     lt s gt NotIE lt  s gt    x000D   x000D      if   msie s trident   edge   i test window navigator userAgent   amp  amp     document documentMode    document uniqueID    window ActiveXObject    window MSInputMethodContext     x000D              if    window MSInputMethodContext    x000D                  ie      ActiveXObject  in window     EDGE    11  x000D                else if    document uniqueID    x000D                  if     window ActiveXObject  amp  amp  document all     x000D                      if  document compatMode     CSS1Compat   amp  amp    window DOMParser     x000D                          ie     window XMLHttpRequest   7   6  x000D                        else   x000D                          ie      window createPopup  amp  amp  document getElementById    parseFloat  5 5     5  x000D                        x000D                      if    document documentMode  amp  amp    document querySelector     x000D                          ie      window atob  amp  amp  window matchMedia    10       document addEventListener   9   8   x000D                        x000D                    else ie     document all   4      window navigator   3   2   x000D                x000D            x000D           x000D      return ie  gt  1    IE     ie   ie  x000D        x000D   x000D   alert browserVersionExplorer   x000D   x000D   x000D    Update 01 Jun 2017  Now we could use something easier and simpler     var uA   window navigator userAgent      onlyIEorEdge    msie s trident   edge   i test uA   amp  amp      document uniqueID    window MSInputMethodContext       checkVersion    onlyIEorEdge  amp  amp      edge   rv  msie s    d     i exec uA  2       NaN

User · Answer

Use   window ActiveXObject   amp  amp   ActiveXObject  in window to detect IE11 explicitly   To detect any IE  pre-Edge   Trident   version  use  ActiveXObject  in window instead

User · Answer

Quite frankly I would say use a library that does what you need (like platform.js for example). At some point things will change and the library will be equipped for those changes and manual parsing using regular expressions will fail.

Thank god IE goes away...

User · Answer

Use MSInputMethodContext as part of a feature detection check  For example     Appends true for IE11  false otherwise window location hash     window MSInputMethodContext  amp  amp    document documentMode    References   MSInputMethodContext Object Input Method Editor API What I   d like to see in IE12  Internet Explorer 12 Wishlist of Bug Fixes and New Features TypeScript lib dom d ts at master    Microsoft TypeScript IE DOM APIs

User · Answer

var ua   navigator userAgent toString   toLowerCase    var match     trident      rv    w        exec ua      msie     w      exec ua       null -1   var rv   match 2   return rv

User · Answer

Detect most browsers with this   var getBrowser   function      var navigatorObj   navigator appName        userAgentObj   navigator userAgent        matchVersion    var match   userAgentObj match   opera chrome safari firefox msie trident     s      d     d     i     if  match  amp  amp   matchVersion   userAgentObj match  version       d    i       null  match 2    matchVersion 1       mobile   if  navigator userAgent match  iPhone Android webOS iPad i         return match    match 1   match 2   mobile     navigatorObj  navigator appVersion  mobile            web browser   return match    match 1   match 2      navigatorObj  navigator appVersion   -          https   gist github com earlonrails 5266945

User · Answer

IE11 no longer reports as MSIE  according to this list of changes it s intentional to avoid mis-detection   What you can do if you really want to know it s IE is to detect the Trident  string in the user agent if navigator appName returns Netscape  something like  the untested     x000D   x000D  function getInternetExplorerVersion   x000D    x000D    var rv   -1  x000D    if  navigator appName     Microsoft Internet Explorer   x000D      x000D      var ua   navigator userAgent  x000D      var re   new RegExp  MSIE   0-9  1      0-9  0       x000D      if  re exec ua     null  x000D        rv   parseFloat  RegExp  1    x000D      x000D    else if  navigator appName     Netscape   x000D      x000D      var ua   navigator userAgent  x000D      var re    new RegExp  Trident   rv   0-9  1      0-9  0       x000D      if  re exec ua     null  x000D        rv   parseFloat  RegExp  1    x000D      x000D    return rv  x000D    x000D   x000D  console log  IE version    getInternetExplorerVersion     x000D   x000D   x000D    Note that IE11  afaik  still is in preview  and the user agent may change before release

User · Answer

Angular JS does this way   msie   parseInt   msie   d    exec navigator userAgent toLowerCase           1    if  isNaN msie       msie   parseInt   trident      rv   d    exec navigator userAgent toLowerCase           1        msie will be positive number if its IE and NaN for other browser like chrome firefox   why     As of Internet Explorer 11  the user-agent string has changed significantly   refer this     msdn  1 msdn  2

User · Answer

solution      x000D   x000D  function GetIEVersion     x000D    var sAgent   window navigator userAgent  x000D    var Idx   sAgent indexOf  MSIE    x000D       If IE  return version number  x000D    if  Idx  gt  0  x000D      return parseInt sAgent substring Idx  5  sAgent indexOf      Idx     x000D   x000D       If IE 11 then look for Updated user agent string  x000D    else if    navigator userAgent match  Trident  7      x000D      return 11  x000D   x000D    else x000D      return 0    It is not IE x000D   x000D    x000D  if   GetIEVersion    gt  0      navigator userAgent toLowerCase   indexOf  firefox    gt  -1    x000D    alert  This is IE     GetIEVersion     x000D   else   x000D    alert  This no is IE     x000D      x000D   x000D   x000D

User · Answer

I used the onscroll event at the element with the scrollbar  When triggered in IE  I added the following validation   onscroll  if  document activeElement  this  ignoreHideOptions

User · Answer

Get IE Version from the User-Agent var ie   0  try   ie   navigator userAgent match    MSIE  Trident  rv       0-9        2      catch e     How it works  The user-agent string for all IE versions includes a portion  quot MSIE space version quot  or  quot Trident other-text rv space-or-colon version quot   Knowing this  we grab the version number from a String match   regular expression  A try-catch block is used to shorten the code  otherwise we d need to test the array bounds for non-IE browsers  Note  The user-agent can be spoofed or omitted  sometimes unintentionally if the user has set their browser to a  quot compatibility mode quot   Though this doesn t seem like much of an issue in practice   Get IE Version without the User-Agent var d   document  w   window  var ie       w MSInputMethodContext   11    d all   99   w atob   10    d addEventListener   9   d querySelector   8   w XMLHttpRequest   7    d compatMode   6   w attachEvent   5   1     How it works  Each version of IE adds support for additional features not found in previous versions  So we can test for the features in a top-down manner  A ternary sequence is used here for brevity  though if-then and switch statements would work just as well  The variable ie is set to an integer 5-11  or 1 for older  or 99 for newer non-IE  You can set it to 0 if you just want to test for IE 1-11 exactly  Note  Object detection may break if your code is run on a page with third-party scripts that add polyfills for things like document addEventListener  In such situations the user-agent is the best option   Detect if the Browser is Modern If you re only interested in whether or not a browser supports most HTML 5 and CSS 3 standards  you can reasonably assume that IE 8 and lower remain the primary problem apps  Testing for window getComputedStyle will give you a fairly good mix of modern browsers  as well  IE 9  FF 4  Chrome 11  Safari 5  Opera 11 5   IE 9 greatly improves on standards support  but native CSS animation requires IE 10  var isModernBrowser      document all      document all  amp  amp  document addEventListener

User · Answer

This appears to be a better method   indexOf  returns -1 if nothing is matched  It doesn t overwrite existing classes on the body  just adds them      add a class on the body ie IE 10 11 var uA   navigator userAgent  if uA indexOf  Trident      -1  amp  amp  uA indexOf  rv 11      -1       document body className   document body className   ie11     if uA indexOf  Trident      -1  amp  amp  uA indexOf  MSIE 10 0      -1       document body className   document body className   ie10

User · Answer

I m using a simpler method   The navigator global object has a property touchpoints  in Internet Exlorer 11 is called msMaxTouchPoints tho   So if you look for   navigator msMaxTouchPoints     void 0    You will find Internet Explorer 11

User · Answer

Try This   var trident     navigator userAgent match  Trident  7 0    var net     navigator userAgent match   NET4 0E    var IE11   trident  amp  amp  net var IEold     navigator userAgent match  MSIE i    true   false    if IE11    IEold   alert  IE    else  alert  Other

User · Answer

I ve read your answers and made a mix  It seems to work with Windows XP IE7 IE8  and Windows 7  IE9 IE10 IE11    function ie ver          var iev 0      var ieold     MSIE   d    d     test navigator userAgent        var trident     navigator userAgent match  Trident  7 0        var rv navigator userAgent indexOf  rv 11 0         if  ieold  iev new Number RegExp  1       if  navigator appVersion indexOf  MSIE 10      -1  iev 10      if  trident amp  amp rv  -1  iev 11       return iev               Of course if I return 0  means no IE

[internet-explorer] How to detect IE11?

The answer is

Get IE Version from the User-Agent

Get IE Version without the User-Agent

Detect if the Browser is Modern

Examples related to internet-explorer

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Examples related to internet-explorer-11

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Examples related to forward-compatibility

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