<!DOCTYPE HTML> <html> <body> Notification </body> <script type="text/javascript"> checkNotification(); function checkNotification(){ if (!(‘Notification‘ in window)) { alert(‘This browser does not support desktop notification‘); } // check whether notification permissions have alredy been granted else if (Notification.permission === ‘granted‘) { // If it‘s okay let‘s create a notification new Notification(‘Granted!‘); } // Otherwise, ask the user for permission else if (Notification.permission !== ‘denied‘) { Notification.requestPermission(function (permission) { // If the user accepts, let‘s create a notification if (permission === ‘granted‘) { new Notification(‘Request granted!‘); } }); } } </script> </html>
原文：http://www.cnblogs.com/lizhaoyao/p/4952043.html