| 1 | <!DOCTYPE html> |
| 2 | <html lang="es"> |
| 3 | |
| 4 | <head> |
| 5 | |
| 6 | <meta charset="UTF-8"> |
| 7 | <meta name="viewport" |
| 8 | content="width=device-width"> |
| 9 | |
| 10 | <title>Notificaciones</title> |
| 11 | |
| 12 | <style> |
| 13 | html { |
| 14 | color-scheme: light dark; |
| 15 | } |
| 16 | </style> |
| 17 | |
| 18 | </head> |
| 19 | |
| 20 | <body> |
| 21 | |
| 22 | <h1>Notificaciones</h1> |
| 23 | |
| 24 | <button type="button" |
| 25 | onclick="notifica()"> |
| 26 | Muestra |
| 27 | </button> |
| 28 | |
| 29 | <script> |
| 30 | |
| 31 | const MENSAJE = "Hola" |
| 32 | |
| 33 | async function notifica() { |
| 34 | let permitida = false |
| 35 | if ("Notification" in window) { |
| 36 | let permiso = |
| 37 | Notification.permission |
| 38 | if (permiso === "default") { |
| 39 | permiso = await Notification |
| 40 | .requestPermission() |
| 41 | } |
| 42 | permitida = |
| 43 | permiso === "granted" |
| 44 | ? true |
| 45 | : false |
| 46 | } |
| 47 | if (permitida) { |
| 48 | notificacion = |
| 49 | new Notification(MENSAJE) |
| 50 | } else { |
| 51 | alert(MENSAJE) |
| 52 | } |
| 53 | } |
| 54 | |
| 55 | </script> |
| 56 | |
| 57 | </body> |
| 58 | |
| 59 | </html> |