<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<div id="contain"></div>
<script>
var c = document.getElementById("contain");
c.innerHTML = window.location.href + "<br>" + navigator.userAgent.toLowerCase();
var br = navigator.userAgent.toLowerCase();
var browserVer = (br.match(/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/) || [0, '0'])[1];
userBrowser();
function userBrowser() {
var browserName = navigator.userAgent.toLowerCase();
if (/msie/i.test(browserName) && !/opera/.test(browserName)) {
alert("IE");
return;
} else if (/firefox/i.test(browserName)) {
alert("Firefox");
return;
} else if (/chrome/i.test(browserName) && /webkit/i.test(browserName) && /mozilla/i.test(browserName)) {
alert("Chrome");
return;
} else if (/opera/i.test(browserName)) {
alert("Opera");
return;
} else if (/webkit/i.test(browserName) && !(/chrome/i.test(browserName) && /webkit/i.test(browserName) && /mozilla/i.test(browserName))) {
alert("Safari");
return;
} else {
alert("unKnow");
}
}
// alert(navigator.userAgent);
</script>
</body>
</html>