安全上下文
此特征只可用于
安全上下文
(HTTPS)，在某些或所有
支持浏览器
.
maxActions
属性在
Notification
interface returns the maximum number of actions supported by the device and the User Agent. Effectively, this is the maximum number of elements in
Notification.actions
array which will be respected by the User Agent.
Notification.maxActions
An integer
Number
which indicates the largest number of notification actions that can be presented to the user by the User Agent and the device.
The following snippet logs the maximum number of supported actions.
const maxActions = Notification.maxActions;
console.log('This device can display at most ' + maxActions + ' actions on each notification.');
| 规范 | 状态 | 注释 |
|---|---|---|
| Notifications API | 实时标准 | Living standard |
| 桌面 | 移动 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
maxActions
|
Chrome Yes | Edge 18 | Firefox No | IE No | Opera Yes | Safari ? | WebView Android No | Chrome Android Yes | Firefox Android No | Opera Android Yes | Safari iOS No | Samsung Internet Android Yes |
完整支持
不支持
兼容性未知
Notification