js判断浏览器版本

ゞ浴缸里的玫瑰 2021-11-22 03:28 290阅读 0赞

<!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
        <script src="../js/jquery.min.js"></script>
    </head>
    <body>
    
    </body>
    <script>
        $(function(){
            alert(browserVersion());
        })
        function browserVersion() {
            var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串
            var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1; //判断是否IE<11浏览器
            var isIE11 = userAgent.indexOf('Trident') > -1 && userAgent.indexOf("rv:11.0") > -1;
            var isEdge = userAgent.indexOf("Edge") > -1 && !isIE; //Edge浏览器
            var isFirefox = userAgent.indexOf("Firefox") > -1; //Firefox浏览器
            var isOpera = userAgent.indexOf("Opera")>-1 || userAgent.indexOf("OPR")>-1 ; //Opera浏览器
            var isChrome = userAgent.indexOf("Chrome")>-1 && userAgent.indexOf("Safari")>-1 && userAgent.indexOf("Edge")==-1 && userAgent.indexOf("OPR")==-1; //Chrome浏览器
            var isSafari = userAgent.indexOf("Safari")>-1 && userAgent.indexOf("Chrome")==-1 && userAgent.indexOf("Edge")==-1 && userAgent.indexOf("OPR")==-1; //Safari浏览器
            if(isIE) {
                var reIE = new RegExp("MSIE (\\d+\\.\\d+);");
                reIE.test(userAgent);
                var fIEVersion = parseFloat(RegExp["$1"]);
                if(fIEVersion == 7) {
                    return 'IE7';
                } else if(fIEVersion == 8) {
                    return 'IE8';
                } else if(fIEVersion == 9) {
                    return 'IE9';
                } else if(fIEVersion == 10) {
                    return 'IE10';
                } else {
                    return 'IE6';//IE版本<7
                }
            } else if(isIE11) {
                return 'IE11';
            } else if(isEdge) {
                return 'Edge'+userAgent.split('Edge/')[1].split('.')[0];
            } else if(isFirefox) {
                return 'Firefox'+userAgent.split('Firefox/')[1].split('.')[0];
            } else if(isOpera) {
                return 'Opera'+userAgent.split('OPR/')[1].split('.')[0];
            } else if(isChrome) {
                return 'Chrome'+userAgent.split('Chrome/')[1].split('.')[0];
            } else if(isSafari) {
                return 'Safari';+userAgent.split('Safari/')[1].split('.')[0];
            } else{
                return -1;//不是ie浏览器
            }
        }
    </script>
    </html>

来源：[https://www.jianshu.com/p/c7331952e8f6?tdsourcetag=s\_pctim\_aiomsg][https_www.jianshu.com_p_c7331952e8f6_tdsourcetag_s_pctim_aiomsg]

[https_www.jianshu.com_p_c7331952e8f6_tdsourcetag_s_pctim_aiomsg]: https://www.jianshu.com/p/c7331952e8f6?tdsourcetag=s_pctim_aiomsg