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 |
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