Get IE Browser Version Using JavaScript

The code below shows you the way to get the version of IE browser using JavaScript.

To do this, we simply look at User-Agent data (navigator.userAgent) to determine whether the visitors are using IE browser and then extract IE version from it.

function getIEVersion() {
    if (navigator && navigator.userAgent) {
        var userAgent = navigator.userAgent;

        // detect IE below 11
        if (userAgent.indexOf('MSIE') !== -1) {
            var parts = userAgent.split('MSIE');
            var version = parseInt(parts[1]);
            return version;
        }

        // detect IE 11
        if (userAgent.indexOf('Trident/') !== -1) {
            var parts = userAgent.split('rv:');
            var version = parseInt(parts[1]);
            return version;
        }
    }

    // not found
    return null;
}

// Mozilla/4.0 (compatible; MSIE 5.50; Windows 98; SiteKiosk 4.8)
console.log(getIEVersion()); // IE version: 5

// Mozilla/5.0 (Windows; U; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727)
console.log(getIEVersion()); // IE version: 6

// Mozilla/5.0 (Windows; U; MSIE 7.0; Windows NT 6.0; en-US)
console.log(getIEVersion()); // IE version: 7

// Mozilla/5.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; GTB7.4; InfoPath.2; SV1; .NET CLR 3.3.69573; WOW64; en-US)
console.log(getIEVersion()); // IE version: 8

// Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; Media Center PC 6.0; InfoPath.3; MS-RTC LM 8; Zune 4.7)
console.log(getIEVersion()); // IE version: 9

// Mozilla/5.0 (compatible; MSIE 10.6; Windows NT 6.1; Trident/5.0; InfoPath.2; SLCC1; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; .NET CLR 2.0.50727) 3gpp-gba UNTRUSTED/1.0
console.log(getIEVersion()); // IE version: 10

// Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko
console.log(getIEVersion()); // IE version: 11