JS获取浏览器信息

---

function getExplore(){
 var Sys = {};  
 var ua = navigator.userAgent.toLowerCase();  
 var s;  
 (s = ua.match(/rv:([\d.]+)\) like gecko/)) ? Sys.ie = s[1] :
 (s = ua.match(/msie ([\d\.]+)/)) ? Sys.ie = s[1] :  
 (s = ua.match(/edge\/([\d\.]+)/)) ? Sys.edge = s[1] :
 (s = ua.match(/firefox\/([\d\.]+)/)) ? Sys.firefox = s[1] :  
 (s = ua.match(/(?:opera|opr).([\d\.]+)/)) ? Sys.opera = s[1] :  
 (s = ua.match(/chrome\/([\d\.]+)/)) ? Sys.chrome = s[1] :  
 (s = ua.match(/version\/([\d\.]+).*safari/)) ? Sys.safari = s[1] : 0;  
  // 根据关系进行判断
 if (Sys.ie) return (\'IE: \' + Sys.ie);  
 if (Sys.edge) return (\'EDGE: \' + Sys.edge);
 if (Sys.firefox) return (\'Firefox: \' + Sys.firefox);  
 if (Sys.chrome) return (\'Chrome: \' + Sys.chrome);  
 if (Sys.opera) return (\'Opera: \' + Sys.opera);  
 if (Sys.safari) return (\'Safari: \' + Sys.safari);
 return \'Unkonwn\';
}


function getExploreName(){
   var userAgent = navigator.userAgent;
   if(userAgent.indexOf("Opera") > -1 || userAgent.indexOf("OPR") > -1){
     return \'Opera\';
   }
   else if(userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1){
     return \'IE\';
   }
   else if(userAgent.indexOf("Edge") > -1){
      return \'Edge\';
   }
   else if(userAgent.indexOf("Firefox") > -1){
      return \'Firefox\';
   }
   else if(userAgent.indexOf("Safari") > -1 && userAgent.indexOf("Chrome") == -1){
     return \'Safari\';
   }
   else if(userAgent.indexOf("Chrome") > -1 && userAgent.indexOf("Safari") > -1){
      return \'Chrome\';
   }
   else if(!!window.ActiveXObject || "ActiveXObject" in window){
      return \'IE>=11\';
   }
   else{
    return \'Unkonwn\';
   }
}

navigator对象