我有5个插件/扩展Firefox, Chrome, Internet Explorer(IE), Opera和Safari。

我如何正确识别用户浏览器和重定向(一旦安装按钮已被点击)下载相应的插件?


当前回答

这是我定制的解决方案。

        const inBrowser = typeof window !== 'undefined'
        const UA = inBrowser && window.navigator.userAgent.toLowerCase()
        const isIE =
          UA && /; msie|trident/i.test(UA) && !/ucbrowser/i.test(UA).test(UA)
        const isEdge = UA && /edg/i.test(UA)
        const isAndroid = UA && UA.indexOf('android') > 0
        const isIOS = UA && /iphone|ipad|ipod|ios/i.test(UA)
        const isChrome =
          UA &&
          /chrome|crios/i.test(UA) &&
          !/opr|opera|chromium|edg|ucbrowser|googlebot/i.test(UA)
        const isGoogleBot = UA && /googlebot/i.test(UA)
        const isChromium = UA && /chromium/i.test(UA)
        const isUcBrowser = UA && /ucbrowser/i.test(UA)
        const isSafari =
          UA &&
          /safari/i.test(UA) &&
          !/chromium|edg|ucbrowser|chrome|crios|opr|opera|fxios|firefox/i.test(UA)
        const isFirefox = UA && /firefox|fxios/i.test(UA) && !/seamonkey/i.test(UA)
        const isOpera = UA && /opr|opera/i.test(UA)
        const isMobile =
          /\b(BlackBerry|webOS|iPhone|IEMobile)\b/i.test(UA) ||
          /\b(Android|Windows Phone|iPad|iPod)\b/i.test(UA)
        const isSamsung = UA && /samsungbrowser/i.test(UA)
        const isIPad = UA && /ipad/.test(UA)
        const isIPhone = UA && /iphone/.test(UA)
        const isIPod = UA && /ipod/.test(UA)
    
        console.log({
          UA,
          isAndroid,
          isChrome,
          isChromium,
          isEdge,
          isFirefox,
          isGoogleBot,
          isIE,
          isMobile,
          isIOS,
          isIPad,
          isIPhone,
          isIPod,
          isOpera,
          isSafari,
          isSamsung,
          isUcBrowser,
        }
      }

其他回答

我知道这可能是使用一个库,但只是为了丰富线程,你可以检查is.js的方式:

is.firefox();
is.ie(6);
is.not.safari();

您可以尝试以下方法检查浏览器版本。

    <!DOCTYPE html>
    <html>
    <body>
    <p>What is the name(s) of your browser?</p>
    <button onclick="myFunction()">Try it</button>
    <p id="demo"></p>
    <script>
    
    function myFunction() { 
     if((navigator.userAgent.indexOf("Opera") || navigator.userAgent.indexOf('OPR')) != -1 ) 
    {
        alert('Opera');
    }
    else if(navigator.userAgent.indexOf("Edg") != -1 )
    {
        alert('Edge');
    }
    else if(navigator.userAgent.indexOf("Chrome") != -1 )
    {
        alert('Chrome');
    }
    else if(navigator.userAgent.indexOf("Safari") != -1)
    {
        alert('Safari');
    }
    else if(navigator.userAgent.indexOf("Firefox") != -1 ) 
    {
         alert('Firefox');
    }
    else if((navigator.userAgent.indexOf("MSIE") != -1 ) || (!!document.documentMode == true )) //IF IE > 10
    {
      alert('IE'); 
    }  
    else 
    {
       alert('unknown');
    }
    }
    </script>
    
    </body>
    </html>

如果你只需要知道IE浏览器版本,那么你可以遵循下面的代码。这段代码适用于IE6到IE11版本

<!DOCTYPE html>
<html>
<body>

<p>Click on Try button to check IE Browser version.</p>

<button onclick="getInternetExplorerVersion()">Try it</button>

<p id="demo"></p>

<script>
function getInternetExplorerVersion() {
   var ua = window.navigator.userAgent;
        var msie = ua.indexOf("MSIE ");
        var rv = -1;

        if (msie > 0 || !!navigator.userAgent.match(/Trident.*rv\:11\./))      // If Internet Explorer, return version number
        {               

            if (isNaN(parseInt(ua.substring(msie + 5, ua.indexOf(".", msie))))) {
                //For IE 11 >
                if (navigator.appName == 'Netscape') {
                    var ua = navigator.userAgent;
                    var re = new RegExp("Trident/.*rv:([0-9]{1,}[\.0-9]{0,})");
                    if (re.exec(ua) != null) {
                        rv = parseFloat(RegExp.$1);
                        alert(rv);
                    }
                }
                else {
                    alert('otherbrowser');
                }
            }
            else {
                //For < IE11
                alert(parseInt(ua.substring(msie + 5, ua.indexOf(".", msie))));
            }
            return false;
        }}
</script>

</body>
</html>

简单的一行JavaScript代码会告诉你浏览器的名称:

function GetBrowser()
{
    return  navigator ? navigator.userAgent.toLowerCase() : "other";
}

这结合了罗伯的原始答案和皮劳2016年的更新

    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;

此方法目前对检测所有浏览器有效。我引用vue-element-admin模板

 export function fnBrowserDetect() {
      var browserName = (function(agent) {
        switch (true) {
          case agent.indexOf('edge') > -1: return 'MS Edge'
          case agent.indexOf('edg/') > -1: return 'Edge (chromium based)'
          case agent.indexOf('opr') > -1 && !!window.opr: return 'Opera'
          case agent.indexOf('chrome') > -1 && !!window.chrome: return 'Chrome'
          case agent.indexOf('trident') > -1: return 'MS IE'
          case agent.indexOf('firefox') > -1: return 'Mozilla Firefox'
          case agent.indexOf('safari') > -1: return 'Safari'
          default: return 'other'
        }
      })(window.navigator.userAgent.toLowerCase())
      return browserName.toLowerCase()
    }