今天用到JS判断浏览器类型,于是就系统整理了一下,便于后期使用。

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/*
  * 描述:判断浏览器信息
  * 编写:LittleQiang_w
  * 日期:2016.1.5
  * 版本:V1.1
  */
  
 //判断当前浏览类型
 function BrowserType()
 {
   var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串
   var isOpera = userAgent.indexOf("Opera") > -1; //判断是否Opera浏览器
   var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 && !isOpera; //判断是否IE浏览器
   var isEdge = userAgent.indexOf("Windows NT 6.1; Trident/7.0;") > -1 && !isIE; //判断是否IE的Edge浏览器
   var isFF = userAgent.indexOf("Firefox") > -1; //判断是否Firefox浏览器
   var isSafari = userAgent.indexOf("Safari") > -1 && userAgent.indexOf("Chrome") == -1; //判断是否Safari浏览器
   var isChrome = userAgent.indexOf("Chrome") > -1 && userAgent.indexOf("Safari") > -1; //判断Chrome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 if(fIEVersion == 11)
      { return "IE11";}
      else
      { return "0"}//IE版本过低
    }//isIE end
      
    if (isFF) { return "FF";}
    if (isOpera) { return "Opera";}
    if (isSafari) { return "Safari";}
    if (isChrome) { return "Chrome";}
    if (isEdge) { return "Edge";}
  }//myBrowser() end
    
  //判断是否是IE浏览器
  function isIE()
  {
   var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串
   var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 && !isOpera; //判断是否IE浏览器
   if(isIE)
   {
     return "1";
   }
   else
   {
     return "-1";
   }
  }
    
    
  //判断是否是IE浏览器,包括Edge浏览器
  function IEVersion()
  {
   var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串
   var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 && !isOpera; //判断是否IE浏览器
var isEdge = userAgent.indexOf("Windows NT 6.1; Trident/7.0;") > -1 && !isIE; //判断是否IE的Edge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 if(fIEVersion == 11)
      { return "IE11";}
      else
      { return "0"}//IE版本过低
   }
else if(isEdge)
{
  return "Edge";
}
   else
   {
     return "-1";//非IE
   }
  }

以上代码通过测试,可用!

但存在一个问题,即IE5与IE7浏览器暂不能区分,以下是IE5与IE7下userAgent的信息;通过userAgent发现,简单的通过以上方法,无法正确区分IE5和IE7。期待该问题的解决方案!!!

IE5: userAgent   "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/7.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; InfoPath.2; .NET4.0E)"

IE7: userAgent  "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/7.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; InfoPath.2; .NET4.0E)"

04-15 16:33