如何使用JavaScript确定确切的浏览器和版本?
当前回答
下面是我如何为Internet Explorer做自定义CSS:
在我的JavaScript文件:
function isIE () {
var myNav = navigator.userAgent.toLowerCase();
return (myNav.indexOf('msie') != -1) ? parseInt(myNav.split('msie')[1]) : false;
}
jQuery(document).ready(function(){
if(var_isIE){
if(var_isIE == 10){
jQuery("html").addClass("ie10");
}
if(var_isIE == 8){
jQuery("html").addClass("ie8");
// you can also call here some function to disable things that
//are not supported in IE, or override browser default styles.
}
}
});
然后在我的CSS文件中，定义每个不同的样式:
.ie10 .some-class span{
.......
}
.ie8 .some-class span{
.......
}
其他回答
这将告诉您有关浏览器及其版本的所有详细信息。
<!DOCTYPE html>
<html>
<body>
<div id="example"></div>
<script>
txt = "<p>Browser CodeName: " + navigator.appCodeName + "</p>";
txt+= "<p>Browser Name: " + navigator.appName + "</p>";
txt+= "<p>Browser Version: " + navigator.appVersion + "</p>";
txt+= "<p>Cookies Enabled: " + navigator.cookieEnabled + "</p>";
txt+= "<p>Platform: " + navigator.platform + "</p>";
txt+= "<p>User-agent header: " + navigator.userAgent + "</p>";
txt+= "<p>User-agent language: " + navigator.systemLanguage + "</p>";
document.getElementById("example").innerHTML=txt;
</script>
</body>
</html>
虽然不是你想要的，但也很接近:
var jscriptVersion = /*@cc_on @if(@_jscript) @_jscript_version @else @*/ false /*@end @*/;
var geckoVersion = navigator.product === 'Gecko' && navigator.productSub;
var operaVersion = 'opera' in window && 'version' in opera && opera.version();
变量将包含适当的版本，如果不可用则为false。
如果有人使用Chrome浏览器可以发现你是否可以使用window，我会很感激。Chrome与window.opera类似。
我推荐使用小型javascript库Bowser。它基于导航器。userAgent和相当好测试的所有浏览器，包括iphone, android等。
https://github.com/ded/bowser
你可以简单地说:
if (bowser.msie && bowser.version <= 6) {
alert('Hello IE');
} else if (bowser.firefox){
alert('Hello Foxy');
} else if (bowser.chrome){
alert('Hello Chrome');
} else if (bowser.safari){
alert('Hello Safari');
} else if(bowser.iphone || bowser.android){
alert('Hello mobile');
}
如果你想要一个返回浏览器和版本的函数，这里是对原始答案的改进:
navigator.browserInfo =
(
function()
{
var browser = '';
var version = '';
var idString = '';
var ua = navigator.userAgent;
var tem = [];
var M = ua.match(/(opera|chrome|safari|firefox|msie|trident(?=\/))\/?\s*(\d+)/i);
//IE will be identified as 'Trident' and a different version number. The name must be corrected to 'Internet Explorer' and the correct version identified.
//ie correction
if(/trident/i.test(M[1]))
{
tem = /\brv[ :]+(\d+.?\d*)/g.exec(ua) || [];
browser = 'Internet Explorer';
version = tem[1];
}
//firefox
else if(/firefox/i.test(M[1]))
{
tem = /\brv[ :]+(\d+.?\d*)/g.exec(ua) || [];
browser = 'Firefox';
version = tem[1];
}
//safari
else if(/safari/i.test(M[1]))
{
tem = ua.match(/\bVersion\/(\d+.?\d*\s*\w+)/);
browser = 'Safari';
version = tem[1];
}
//If 'Chrome' is found, it may be another browser.
else if(M[1] === 'Chrome')
{
//opera
var temOpr = ua.match(/\b(OPR)\/(\d+.?\d*.?\d*.?\d*)/);
//edge
var temEdge = ua.match(/\b(Edge)\/(\d+.?\d*)/);
//chrome
var temChrome = ua.match(/\b(Chrome)\/(\d+.?\d*.?\d*.?\d*)/);
//a genuine 'Chrome' reading will result from ONLY temChrome not being null.
var genuineChrome = temOpr == null && temEdge == null && temChrome != null;
if(temOpr != null)
{
browser = temOpr[1].replace('OPR', 'Opera');
version = temOpr[2];
}
if(temEdge != null)
{
browser = temEdge[1];
version = temEdge[2];
}
if(genuineChrome)
{
browser = temChrome[1];
version = temChrome[2];
}
}
//There will be some odd balls, so if you wish to support those browsers, add functionality to display those browsers as well.
if(browser == '' || version == '')
{
idString = 'We couldn\'t find your browser, but you can still use the site';
}
else
{
idString = browser + ' version ' + version;
}
alert('Your browser is ' + idString);
//store the type of browser locally
if(typeof(Storage) !== "undefined")
{
//Store
localStorage.setItem('browser', browser);
localStorage.setItem('version', version);
}
else
{
alert('local storage not available');
}
}
)();
这样，它还将结果存储在本地，因此不必每次都执行该检查。
这是我正在使用的:
var ua = navigator.userAgent;
var info = {
browser: /Edge\/\d+/.test(ua) ? 'ed' : /MSIE 9/.test(ua) ? 'ie9' : /MSIE 10/.test(ua) ? 'ie10' : /MSIE 11/.test(ua) ? 'ie11' : /MSIE\s\d/.test(ua) ? 'ie?' : /rv\:11/.test(ua) ? 'ie11' : /Firefox\W\d/.test(ua) ? 'ff' : /Chrom(e|ium)\W\d|CriOS\W\d/.test(ua) ? 'gc' : /\bSafari\W\d/.test(ua) ? 'sa' : /\bOpera\W\d/.test(ua) ? 'op' : /\bOPR\W\d/i.test(ua) ? 'op' : typeof MSPointerEvent !== 'undefined' ? 'ie?' : '',
os: /Windows NT 10/.test(ua) ? "win10" : /Windows NT 6\.0/.test(ua) ? "winvista" : /Windows NT 6\.1/.test(ua) ? "win7" : /Windows NT 6\.\d/.test(ua) ? "win8" : /Windows NT 5\.1/.test(ua) ? "winxp" : /Windows NT [1-5]\./.test(ua) ? "winnt" : /Mac/.test(ua) ? "mac" : /Linux/.test(ua) ? "linux" : /X11/.test(ua) ? "nix" : "",
touch: 'ontouchstart' in document.documentElement,
mobile: /IEMobile|Windows Phone|Lumia/i.test(ua) ? 'w' : /iPhone|iP[oa]d/.test(ua) ? 'i' : /Android/.test(ua) ? 'a' : /BlackBerry|PlayBook|BB10/.test(ua) ? 'b' : /Mobile Safari/.test(ua) ? 's' : /webOS|Mobile|Tablet|Opera Mini|\bCrMo\/|Opera Mobi/i.test(ua) ? 1 : 0,
tablet: /Tablet|iPad/i.test(ua),
};
信息属性:
browser: gc for Google Chrome; ie9-ie11 for IE; ie? for old or unknown IE; ed for Edge; ff for Firefox; sa for Safari; op for Opera. os: mac win7 win8 win10 winnt winxp winvista linux nix mobile: a for Android; i for iOS (iPhone iPad); w for Windows Phone; b for Blackberry; s for undetected mobile running Safari; 1 for other undetected mobile; 0 for non-mobile touch: true for touch enabled devices, including touch laptops/notebooks that has both mouse and touch together; false for no touch support tablet: true or false
https://jsfiddle.net/oriadam/ncb4n882/
