判断五大浏览器类型

function getBrowser() { 

var ua = window.navigator.userAgent; 

var isIE = window.ActiveXObject != undefined && ua.indexOf("MSIE") != -1; 

var isFirefox = ua.indexOf("Firefox") != -1; 
var isOpera = window.opr != undefined; 

var isChrome = ua.indexOf("Chrome") && window.chrome; 

var isSafari = ua.indexOf("Safari") != -1 && ua.indexOf("Version") != -1; 

if (isIE) { 
  return "IE"; 

} else if (isFirefox) { 

  return "Firefox"; 

} else if (isOpera) { 

  return "Opera"; 

} else if (isChrome) { 

  return "Chrome"; 

} else if (isSafari) { 

  return "Safari"; 

} else { 

  return "Unkown"; 

alert(getBrowser());

原文地址:https://www.cnblogs.com/zxrbky/p/8818814.html