How to detect IE including 11?

Question

JavaScript

It is necessary to determine in js that the user has logged in with IE. In this case, it is necessary that the method takes into account the 11th version. I don't need to define the version, just the fact itself. Anyone suggest a solution?

Answer 1

var ua = window.navigator.userAgent.toLowerCase(),
is_ie = (/trident/gi).test(ua) || (/msie/gi).test(ua);

See userAgent. It's more correct to look for " Trident ", but for greater reliability, you can also check "MSIE".

Answer 2

var is_ie = confirm('Are u use IE?')

Answer 3

Conditional compilation
Branching variant:

/*@cc_on @if (@_jscript)
console.log('Я — осёл и мой номер ' + @_jscript_version);
@else @*/
document.write('Я — обычный современный утюг');
/*@end @*/

Well, only for IE:

/*@cc_on
console.log('Я — осёл и мой номер ' + @_jscript_version);
@*/

Answer 4

Perhaps you do not need to determine the version of IE, but to determine what features the browser can do? Look at modernizr.com/.
And for IE older versions there are conditional comments: www.quirksmode.org/css/condcom.html
Well, specifically the answer to the question: stackoverflow.com/questions/13478303/correct-way-t...

Answer 5

if (document.all) {
    // Код для всех версий IE. В других браузерах выполняться не будет.
}

Answer 6

htmlbook.ru/samlayout/internet-explorer/uslovnye-k...
example:
jsfiddle.net/umcyyyc4/3