解析浏览器信息的JavaScript代码-优快云博客

本文链接：https://blog.youkuaiyun.com/iteye_133/article/details/82473160



<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
 <head>
  <title> New Document </title>
 <script type="text/javascript">
 <!--
	// 获取浏览器名称及版本信息
function appInfo(){
    var browser = {
            msie: false, firefox: false, opera: false, safari: false, 
            chrome: false, netscape: false, appname: 'unknown', version: 0
        },
        userAgent = window.navigator.userAgent.toLowerCase();
    if ( /(msie|firefox|opera|chrome|netscape)\D+(\d[\d.]*)/.test( userAgent ) ){
        browser[RegExp.$1] = true;
        browser.appname = RegExp.$1;
        browser.version = RegExp.$2;
    } else if ( /version\D+(\d[\d.]*).*safari/.test( userAgent ) ){ // safari
        browser.safari = true;
        browser.appname = 'safari';
        browser.version = RegExp.$2;
    }
    return browser;
}
// 调用示例
var myos = appInfo();
// 如果当前浏览器是IE，弹出浏览器版本,否则弹出当前浏览器名称和版本
if ( myos.msie ){
    alert( myos.version );
} else {
    alert( myos.appname + myos.version );
}
 //-->
 </script>
 </head>

 <body>

 </body>
</html>