我使用以下函数来检测我的 IE 版本：
function isIE()
{
var myNav = navigator.userAgent.toLowerCase();
return (myNav.indexOf('msie') != -1) ? parseInt(myNav.split('msie')[1]) : false;
}
如果使用 IE 浏览器，此代码将返回 IE 版本，如果使用其他浏览器，则返回 false。它可以在 IE6、IE9 和 Chrome 中使用。当我尝试使用 Firefox 最新版本 v20 时，它不起作用（网站挂起）。你们知道为什么吗？
或者有没有其他功能可以用来检测IE版本？
/**
* Detects browser endgine and browser version.
* @class BrowserDetect
* @property {string} browser browser engine
* @property {number} version browser version
* @return {object}
*/
var BrowserDetect = {
init: function() {
this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
this.version = this.searchVersion(navigator.userAgent)
|| this.searchVersion(navigator.appVersion)
|| "an unknown version";
this.OS = this.searchString(this.dataOS) || "an unknown OS";
},
searchString: function(data) {
for (var i = 0; i < data.length; i++) {
var dataString = data[i].string;
var dataProp = data[i].prop;
this.versionSearchString = data[i].versionSearch || data[i].identity;
if (dataString) {
if (dataString.indexOf(data[i].subString) !== -1)
return data[i].identity;
}
else if (dataProp)
return data[i].identity;
}
},
searchVersion: function(dataString) {
var index = dataString.indexOf(this.versionSearchString);
if (index === -1)
return;
return parseFloat(dataString.substring(index + this.versionSearchString.length + 1));
},
dataBrowser: [
{
string: navigator.userAgent,
subString: "Chrome",
identity: "Chrome"
},
{string: navigator.userAgent,
subString: "OmniWeb",
versionSearch: "OmniWeb/",
identity: "OmniWeb"
},
{
string: navigator.vendor,
subString: "Apple",
identity: "Safari",
versionSearch: "Version"
},
{
prop: window.opera,
identity: "Opera",
versionSearch: "Version"
},
{
string: navigator.vendor,
subString: "iCab",
identity: "iCab"
},
{
string: navigator.vendor,
subString: "KDE",
identity: "Konqueror"
},
{
string: navigator.userAgent,
subString: "Firefox",
identity: "Firefox"
},
{
string: navigator.vendor,
subString: "Camino",
identity: "Camino"
},
{// for newer Netscapes (6+)
string: navigator.userAgent,
subString: "Netscape",
identity: "Netscape"
},
{
string: navigator.userAgent,
subString: "MSIE",
identity: "Explorer",
versionSearch: "MSIE"
},
{
string: navigator.userAgent,
subString: "Gecko",
identity: "Mozilla",
versionSearch: "rv"
},
{// for older Netscapes (4-)
string: navigator.userAgent,
subString: "Mozilla",
identity: "Netscape",
versionSearch: "Mozilla"
}
],
dataOS: [
{
string: navigator.platform,
subString: "Win",
identity: "Windows"
},
{
string: navigator.platform,
subString: "Mac",
identity: "Mac"
},
{
string: navigator.userAgent,
subString: "iPhone",
identity: "iPhone/iPod"
},
{
string: navigator.platform,
subString: "Linux",
identity: "Linux"
}
]
};
这很丑陋但很简单，使用 IE 条件注释。
编辑：这是基于维基百科示例的更好版本
<script>
var internet_explorer_version = -1;
/*@cc_on
@if (@_jscript_version == 10)
internet_explorer_version = 10;
@elif (@_jscript_version == 9)
internet_explorer_version = 9;
@elif (@_jscript_version == 5.8)
internet_explorer_version = 8;
@elif (@_jscript_version == 5.7 && window.XMLHttpRequest)
internet_explorer_version = 7;
@elif (@_jscript_version == 5.6 || (@_jscript_version == 5.7 && !window.XMLHttpRequest))
internet_explorer_version = 6;
@elif (@_jscript_version == 5.5)
internet_explorer_version = 5.5;
@end
@*/
</script>
只有 IE4+ 支持条件注释。较旧的 IE 或非 IE 浏览器将跳过所有检查并留下-1. 该脚本检查 5.5+，对于您需要的任何东西，它应该足够远了。
这对我有用，我已经在 IE9 到 IE11 上对其进行了测试。IE11 中的 useragent 字符串与之前的版本不同，这就是为什么这里有两个不同的测试。
if (/msie|trident/ig.test(navigator.userAgent)) {
var matches = navigator.userAgent.match(/MSIE\s([\d\.]+)/) || navigator.userAgent.match(/rv:([\d\.]+)/);
var ieVersion = parseInt(matches[1], 10);
}
你可以使用正则表达式..
<script type="text/javascript">
var userAgent = navigator.userAgent;
var internet_version = -1;
userAgent.replace(/MSIE .{1,5};/g, function(findS) {
internet_version = parseFloat(findS.substring(5, findS.length-1));
});
alert(internet_version);
</script>
我用这个
public static class DeviceHelper
{
public static bool IsMobile(string userAgent)
{
userAgent = userAgent.ToLower();
var currentSubContent = NodeLocator.GetNodeOfExactType<Language>();
var isMobileDevicesActivatedInBackend = currentSubContent.ActiveForMobileDevices;
if (isMobileDevicesActivatedInBackend)
{
return userAgent.Contains("iphone") |
userAgent.Contains("ppc") |
userAgent.Contains("windows ce") |
userAgent.Contains("blackberry") |
userAgent.Contains("opera mini") |
//userAgent.Contains("mobile") |
userAgent.Contains("palm") |
userAgent.Contains("portable") |
(userAgent.Contains("android") && userAgent.Contains("mobile")) |
(userAgent.Contains("windows") && userAgent.Contains("mobile"));
}
else
{
return false;
}
}
}
然后你可以从这里添加你需要的东西：检测 MSIE 的版本
或者在 jquery 中只使用他们的 api：
if ($.browser.msie){
}
使用这个功能就可以了。
function checkVersion() {
var msg = "You're not using Internet Explorer.";
var ver = getInternetExplorerVersion();
if (ver > -1) {
if (ver >= 8.0)
msg = "You're using a recent copy of Internet Explorer."
else
msg = "You should upgrade your copy of Internet Explorer.";
}
alert(msg+" version ->"+ver);
}
从 msdn 得到这个脚本：
function getInternetExplorerVersion()
// Returns the version of Internet Explorer or a -1
// (indicating the use of another browser).
// http://msdn.microsoft.com/en-us/library/ms537509(v=vs.85).aspx
{
var rv = -1; // Return value assumes failure.
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;
}
就个人而言，我总是<html>使用条件注释将一个类应用于 。稍后，我在 javascript 中检查类名。