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Notification() 构造函数创建新 Notification object instance, which represents a user notification.

句法

var myNotification = new Notification(title, options);
					

参数

title

Defines a title for the notification, which is shown at the top of the notification window.

选项 可选

An options object containing any custom settings that you want to apply to the notification. The possible options are:

• dir : The direction in which to display the notification. It defaults to auto , which just adopts the browser's language setting behavior, but you can override that behaviour by setting values of ltr and rtl (although most browsers seem to ignore these settings.)
• lang : The notification's language, as specified using a DOMString representing a BCP 47 language tag . See the Sitepoint ISO 2 letter language codes page for a simple reference.
• badge : A USVString containing the URL of the image used to represent the notification when there isn't enough space to display the notification itself.
• body : A DOMString representing the body text of the notification, which is displayed below the title.
• tag : A DOMString representing an identifying tag for the notification.
• icon : A USVString containing the URL of an icon to be displayed in the notification.
• image ： USVString containing the URL of an image to be displayed in the notification.
• data : Arbitrary data that you want associated with the notification. This can be of any data type.
• vibrate : A vibration pattern for the device's vibration hardware to emit with the notification.
• renotify : A 布尔 specifying whether the user should be notified after a new notification replaces an old one. The default is false , which means they won't be notified.
• requireInteraction : Indicates that a notification should remain active until the user clicks or dismisses it, rather than closing automatically. The default value is false .
• actions : An array of NotificationAction s representing the actions available to the user when the notification is presented. These are options the user can choose among in order to act on the action within the context of the notification itself. The action's name is sent to the service worker notification handler to let it know the action was selected by the user.
• silent : A 布尔 specifying whether the notification is silent (no sounds or vibrations issued), regardless of the device settings. The default is false , which means it won't be silent.

范例

In our Emogotchi demo ( see source code ), we run a spawnNotification() function when we want to trigger a notification. The function is passed parameters to specify the body, icon, and title we want, and then it creates the necessary 选项 object and triggers the notification by using the Notification() 构造函数。

function spawnNotification(theBody,theIcon,theTitle) {
  var options = {
      body: theBody,
      icon: theIcon
  }
  var n = new Notification(theTitle,options);
}
					

规范

规范	状态	注释
Notifications API The definition of 'Notification() constructor' in that specification.	实时标准	初始定义。

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
Notification() 构造函数	Chrome 22 22 5 Prefixed Prefixed Implemented with the vendor prefix: webkit	Edge ≤18	Firefox 22 22 4 Prefixed Prefixed Implemented with the vendor prefix: moz	IE No	Opera 25	Safari 6	WebView Android No	Chrome Android Yes	Firefox Android 22 22 4 Prefixed Prefixed Implemented with the vendor prefix: moz	Opera Android Yes	Safari iOS No	Samsung Internet Android Yes

图例

完整支持

完整支持

不支持

不支持

要求使用供应商前缀或不同名称。

要求使用供应商前缀或不同名称。

Chrome notes

Starting in Chrome 49, notifications don't work in incognito mode.

Internet Explorer 注意事项

Version 38.14352 and higher of MS Edge Notification API is suported. Wikipedia - MS Edge

IE 11 and lower isn't supported.

另请参阅

• Using the Notifications API

元数据

• 最后修改： Jul 23, 2020