如何使用JavaScript确定确切的浏览器和版本?
当前回答
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/
其他回答
var isOpera = !!window.opera || navigator.userAgent.indexOf(' OPR/') >= 0;
// Opera 8.0+ (UA detection to detect Blink/v8-powered Opera)
var isFirefox = typeof InstallTrigger !== 'undefined'; // Firefox 1.0+
var isSafari = Object.prototype.toString.call(window.HTMLElement).indexOf('Constructor') > 0;
// At least Safari 3+: "[object HTMLElementConstructor]"
var isChrome = !!window.chrome && !isOpera; // Chrome 1+
var isIE = /*@cc_on!@*/false || !!document.documentMode;
// Edge 20+
var isEdge = !isIE && !!window.StyleMedia;
// Chrome 1+
var output = 'Detecting browsers by ducktyping:<hr>';
output += 'isFirefox: ' + isFirefox + '<br>';
output += 'isChrome: ' + isChrome + '<br>';
output += 'isSafari: ' + isSafari + '<br>';
output += 'isOpera: ' + isOpera + '<br>';
output += 'isIE: ' + isIE + '<br>';
output += 'isIE Edge: ' + isEdge + '<br>';
document.body.innerHTML = output;
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>
遗憾的是，IE11的导航器中不再有MSIE。
Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; OfficeLiveConnector.1.5; OfficeLivePatch.1.3; .NET4.0C; BRI/2; BOIE9;ENUS; rv:11.0) like Gecko
至于为什么你想知道你在使用哪个浏览器，这是因为每个浏览器都有自己的一组错误，你最终实现了浏览器和版本特定的解决方案，或者告诉用户使用不同的浏览器!
//Copy and paste this into your code/text editor, and try it
//Before you use this to fix compatability bugs, it's best to try inform the browser provider that you have found a bug and there latest browser may not be up to date with the current web standards
//Since none of the browsers use the browser identification system properly you need to do something a bit like this
//Write browser identification
document.write(navigator.userAgent + "<br>")
//Detect browser and write the corresponding name
if (navigator.userAgent.search("MSIE") >= 0){
document.write('"MS Internet Explorer ');
var position = navigator.userAgent.search("MSIE") + 5;
var end = navigator.userAgent.search("; Windows");
var version = navigator.userAgent.substring(position,end);
document.write(version + '"');
}
else if (navigator.userAgent.search("Chrome") >= 0){
document.write('"Google Chrome ');// For some reason in the browser identification Chrome contains the word "Safari" so when detecting for Safari you need to include Not Chrome
var position = navigator.userAgent.search("Chrome") + 7;
var end = navigator.userAgent.search(" Safari");
var version = navigator.userAgent.substring(position,end);
document.write(version + '"');
}
else if (navigator.userAgent.search("Firefox") >= 0){
document.write('"Mozilla Firefox ');
var position = navigator.userAgent.search("Firefox") + 8;
var version = navigator.userAgent.substring(position);
document.write(version + '"');
}
else if (navigator.userAgent.search("Safari") >= 0 && navigator.userAgent.search("Chrome") < 0){//<< Here
document.write('"Apple Safari ');
var position = navigator.userAgent.search("Version") + 8;
var end = navigator.userAgent.search(" Safari");
var version = navigator.userAgent.substring(position,end);
document.write(version + '"');
}
else if (navigator.userAgent.search("Opera") >= 0){
document.write('"Opera ');
var position = navigator.userAgent.search("Version") + 8;
var version = navigator.userAgent.substring(position);
document.write(version + '"');
}
else{
document.write('"Other"');
}
//Use w3schools research the `search()` method as other methods are availible
下面的代码片段将显示如何显示UI元素取决于IE版本和浏览器
$(document).ready(function () {
var msiVersion = GetMSIieversion();
if ((msiVersion <= 8) && (msiVersion != false)) {
//Show UI elements specific to IE version 8 or low
} else {
//Show UI elements specific to IE version greater than 8 and for other browser other than IE,,ie..Chrome,Mozila..etc
}
}
);
下面的代码将给出我们如何获得IE版本
function GetMSIieversion() {
var ua = window.navigator.userAgent;
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 like Chrome,Mozila..etc
return false;
}
