JavaScript中Navigator对象的作用是什么?
要获取有关网页当前运行的浏览器的信息,请使用内置导航器对象。您可以对该对象使用各种 Navigator 方法和属性。
示例
您可以尝试运行以下代码以在 JavaScript 中实现 Navigator 对象 –
<html> <head> <title>Navigator Object Example</title> </head> <body> <script> <!-- var userAgent = navigator.userAgent; var opera = (userAgent.indexOf('Opera') != -1); var ie = (userAgent.indexOf('MSIE') != -1); var gecko = (userAgent.indexOf('Gecko') != -1); var netscape = (userAgent.indexOf('Mozilla') != -1); var version = navigator.appVersion; if (opera) { document.write(Opera based browser); // Keep your opera specific URL here. } else if (gecko) { document.write(Mozilla based browser); // Keep your gecko specific URL here. } else if (ie) { document.write(IE based browser); // Keep your IE specific URL here. } else if (netscape) { document.write(Netscape based browser); // Keep your Netscape specific URL here. } else { document.write(Unknown browser); } // You can include version to along with any above condition. document.write(<br /> Browser version info : + version ); //--> </script> </body> </html>
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