JS获取当前使用的浏览器名字以及版本号

冷不防 2022-09-24 01:26 211阅读 0赞

<!DOCTYPE html>
    <html>
      <head>
        <title>JS获取当前使用的浏览器名字以及版本号</title>
        <meta charset="utf-8">
        <meta name="keywords" content="keyword1,keyword2,keyword3">
        <meta name="description" content="this is my page">
        <meta name="content-type" content="text/html; charset=UTF-8">
        <script type="text/javascript">
    		var userAgent=window.navigator.userAgent,  
    	    	rMsie=/(msie\s|trident.*rv:)([\w.]+)/,  
    			rFirefox=/(firefox)\/([\w.]+)/,  
    			rOpera=/(opera).+version\/([\w.]+)/,  
    			rChrome=/(chrome)\/([\w.]+)/,  
    			rSafari=/version\/([\w.]+).*(safari)/;
    		function uaMatch(ua)
    		{
    			var match=rMsie.exec(ua); 
    			if(match != null)
    			{ 
    				return {browser:"IE",version:match[2] || "0"}; 
    			} 
    			var match=rFirefox.exec(ua); 
    			if(match != null) 
    			{ 
    				return {browser:match[1] || "",version:match[2] || "0"}; 
      			} 
    			var match=rOpera.exec(ua); 
      			if(match != null) 
    			{ 
        			return {browser:match[1] || "",version:match[2] || "0"}; 
      			}	 
      			var match=rChrome.exec(ua); 
    			if(match != null) 
    			{ 
        			return {browser:match[1] || "",version:match[2] || "0"}; 
      			} 
      			var match=rSafari.exec(ua); 
    			if(match != null) 
    			{ 
    				return {browser:match[2] || "",version:match[1] || "0"}; 
      			} 
      			if(match != null) 
    			{ 
        			return {browser:"",version:"0"}; 
      			} 
    		}
    		function init()
    		{
    			var browser=""; 
    			var version="";
    			var browserMatch=uaMatch(userAgent.toLowerCase()); 
    			if(browserMatch.browser)
    			{ 
    				browser=browserMatch.browser; 
    				version=browserMatch.version; 
    			}
    			alert(browser+"  "+version);
    		}
        </script>
      </head>
      <body οnlοad="init()">
        
      </body>
    </html>