// Get IE or Edge browser version
var version = detectIE();
if (version === false) {
document.getElementById('result').innerHTML = '<s>IE/Edge</s>';
} else if (version >= 12) {
document.getElementById('result').innerHTML = 'Edge ' + version;
} else {
document.getElementById('result').innerHTML = 'IE ' + version;
}
// add details to debug result
document.getElementById('details').innerHTML = window.navigator.userAgent;
/**
* detect IE
* returns version of IE or false, if browser is not Internet Explorer
*/
function detectIE() {
var ua = window.navigator.userAgent;
// Test values; Uncomment to check result …
// IE 10
// ua = 'Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; Trident/6.0)';
// IE 11
// ua = 'Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko';
// Edge 12 (Spartan)
// ua = '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';
// Edge 13
// ua = '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';
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 (IE 12+) => return version number
return parseInt(ua.substring(edge + 5, ua.indexOf('.', edge)), 10);
}
// other browser
return false;
}
@import url(https://fonts.googleapis.com/css?family=Fira+Mono|Fira+Sans:300);
body {
color: black;
background-color: white;
font-family: "Fira Sans", sans-serif;
font-weight: 300;
margin: 0;
padding: 3rem;
}
h1 {
color: darkgrey;
text-align: center;
font-weight: 300;
font-size: 1.5rem;
line-height: 2rem;
}
h2 {
text-align: center;
font-weight: 300;
font-size: 4rem;
}
p {
color: darkgrey;
text-align: center;
font-family: "Fira Mono", monospace;
font-size: 1rem;
line-height: 1.5rem;
}
<h1>Detect IE/Edge version with JavaScript.<br> Updated to recognize Internet Explorer 12+ aka Edge.</h1>
<h2 id="result">detecting…</h2>
<p id="details">n/a</p>
Object not found and needs to be re-evaluated.