NotificationEvent:notification 属性
注意:此功能仅在 Service Workers 中可用。
NotificationEvent
接口的notification
只读属性返回在触发事件时被点击的 Notification
实例。该 Notification
提供了对许多属性的只读访问,这些属性是在 Notification 实例化时设置的,例如 tag
和 data
属性,允许你在 notificationclick
事件中存储信息以供后续使用。
值
一个 Notification
对象。
示例
js
self.addEventListener("notificationclick", (event) => {
console.log("On notification click");
// Data can be attached to the notification so that you
// can process it in the notificationclick handler.
console.log(`Notification Tag: ${event.notification.tag}`);
console.log(`Notification Data: ${event.notification.data}`);
event.notification.close();
// This looks to see if the current is already open and
// focuses if it is
event.waitUntil(
clients
.matchAll({
type: "window",
})
.then((clientList) => {
for (const client of clientList) {
if (client.url === "/" && "focus" in client) return client.focus();
}
if (clients.openWindow) return clients.openWindow("/");
}),
);
});
规范
规范 |
---|
Notifications API # dom-notificationevent-notification |
浏览器兼容性
加载中…