1# JS API Changes of the DFX Subsystem 2 3The table below lists the APIs changes of the DFX subsystem in OpenHarmony 3.2 Beta3 over OpenHarmony 3.2 Beta2. 4 5## API Changes 6 7| Module| Class| Method/Attribute/Enumeration/Constant| Change Type| 8|---|---|---|---| 9| ohos.hiAppEvent | hiAppEvent | function clearData(): void; | Added| 10| ohos.hiAppEvent | hiAppEvent | function removeWatcher(watcher: Watcher): void; | Added| 11| ohos.hiAppEvent | hiAppEvent | function addWatcher(watcher: Watcher): AppEventPackageHolder; | Added| 12| ohos.hiAppEvent | Watcher | onTrigger?: (curRow: number, curSize:number, holder:AppEventPackageHolder) => void; | Added| 13| ohos.hiAppEvent | Watcher | appEventFilters?: AppEventFilter[]; | Added| 14| ohos.hiAppEvent | Watcher | triggerCondition?: TriggerCondition; | Added| 15| ohos.hiAppEvent | Watcher | name: string; | Added| 16| ohos.hiAppEvent | AppEventFilter | eventTypes?: EventType[]; | Added| 17| ohos.hiAppEvent | AppEventFilter | domain: string; | Added| 18| ohos.hiAppEvent | TriggerCondition | timeOut?: number; | Added| 19| ohos.hiAppEvent | TriggerCondition | size?: number; | Added| 20| ohos.hiAppEvent | TriggerCondition | row?: number; | Added| 21| ohos.hiAppEvent | AppEventPackageHolder | takeNext(): AppEventPackage; | Added| 22| ohos.hiAppEvent | AppEventPackageHolder | setSize(size: number): void; | Added| 23| ohos.hiAppEvent | AppEventPackageHolder | constructor(watcherName: string); | Added| 24| ohos.hiAppEvent | AppEventPackage | data: string[]; | Added| 25| ohos.hiAppEvent | AppEventPackage | size: number; | Added| 26| ohos.hiAppEvent | AppEventPackage | row: number; | Added| 27| ohos.hiAppEvent | AppEventPackage | packageId: number; | Added| 28| ohos.hiAppEvent | AppEventInfo | params: object; | Added| 29| ohos.hiAppEvent | AppEventInfo | eventType: EventType; | Added| 30| ohos.hiAppEvent | AppEventInfo | name: string; | Added| 31| ohos.hiAppEvent | AppEventInfo | domain: string; | Added| 32| ohos.hiAppEvent | hiAppEvent | function write(eventName: string, eventType: EventType, keyValues: object): Promise\<void>;<br>function write(eventName: string, eventType: EventType, keyValues: object, callback: AsyncCallback\<void>): void;<br>function write(info: AppEventInfo): Promise\<void>;<br>function write(info: AppEventInfo, callback: AsyncCallback\<void>): void; | Deprecated| 33