1 # NotificationSorting 2 3 The **NotificationSorting** module provides APIs for defining the sorting information of active notifications. 4 5 > **NOTE** 6 > 7 > The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version. 8 9 ## Attributes 10 11 **System capability**: SystemCapability.Notification.Notification 12 13 **System API**: This is a system API and cannot be called by third-party applications. 14 15 | Name | Type | Mandatory| Description | 16 |---------| --------------------- | --- |------------------------| 17 | slot | [NotificationSlot](js-apis-inner-notification-notificationSlot.md) | Yes | Notification slot type. | 18 | ranking | number | Yes | Notification level. If this parameter is not set, the default value is used based on the notification slot type.| 19 | hashCode | string | Yes | Unique ID of the notification. | 20