如何使用JavaScript确定确切的浏览器和版本?
当前回答
我发现了一个有趣又快捷的方法。 IE支持导航器。systemLanguage返回“en-US”，其他浏览器返回undefined。
<script>
var lang = navigator.systemLanguage;
if (lang!='en-US'){document.write("Well, this is not internet explorer");}
else{document.write("This is internet explorer");}
</script>
其他回答
//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
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>
我发现了一个有趣又快捷的方法。 IE支持导航器。systemLanguage返回“en-US”，其他浏览器返回undefined。
<script>
var lang = navigator.systemLanguage;
if (lang!='en-US'){document.write("Well, this is not internet explorer");}
else{document.write("This is internet explorer");}
</script>
我做了这个小函数，希望对大家有帮助。在这里你可以找到最新的版本 browserDetection
function detectBrowser(userAgent){
var chrome = /.*(Chrome\/).*(Safari\/).*/g;
var firefox = /.*(Firefox\/).*/g;
var safari = /.*(Version\/).*(Safari\/).*/g;
var opera = /.*(Chrome\/).*(Safari\/).*(OPR\/).*/g
if(opera.exec(userAgent))
return "Opera"
if(chrome.exec(userAgent))
return "Chrome"
if(safari.exec(userAgent))
return "Safari"
if(firefox.exec(userAgent))
return "Firefox"
}
navigator.saysWho = (() => { const { userAgent } = navigator let match = userAgent.match(/(opera|chrome|safari|firefox|msie|trident(?=\/))\/?\s*(\d+)/i) || [] let temp if (/trident/i.test(match[1])) { temp = /\brv[ :]+(\d+)/g.exec(userAgent) || [] return `IE ${temp[1] || ''}` } if (match[1] === 'Chrome') { temp = userAgent.match(/\b(OPR|Edge)\/(\d+)/) if (temp !== null) { return temp.slice(1).join(' ').replace('OPR', 'Opera') } temp = userAgent.match(/\b(Edg)\/(\d+)/) if (temp !== null) { return temp.slice(1).join(' ').replace('Edg', 'Edge (Chromium)') } } match = match[2] ? [ match[1], match[2] ] : [ navigator.appName, navigator.appVersion, '-?' ] temp = userAgent.match(/version\/(\d+)/i) if (temp !== null) { match.splice(1, 1, temp[1]) } return match.join(' ') })() console.log(navigator.saysWho) // outputs: `Chrome 89`
顾名思义，这将告诉您浏览器提供的名称和版本号。
当您在多个浏览器上测试新代码时，对测试和错误结果进行排序非常方便。
