| want | [Want](js-apis-application-Want.md) | Yes | Want that contains the bundle name. |
| extensionFlags | number | Yes | Extension ability information to be returned. The default value is **0**. For details on the available enumerated values, see [ExtensionFlags](#ExtensionFlag9).|
| extensionFlags | number | Yes | Extension ability information to be returned. The default value is **0**. The value must be greater than or equal to 0. |
| userId | number | No | User ID. The default value is the user ID of the caller. The value must be greater than or equal to 0. |
| want | [Want](js-apis-application-Want.md)| Yes | Want that contains the bundle name. |
| extensionFlags | number | Yes | Extension ability information to be returned. The default value is **0**. For details on the available enumerated values, see [ExtensionFlags](#ExtensionFlag9). |
| want | [Want](js-apis-application-Want.md) | Yes | Want that contains the bundle name. |
| extensionFlags | number | Yes | Extension ability information to be returned. The default value is **0**. The value must be greater than or equal to 0. |
| userId | number | Yes | User ID. The default value is the user ID of the caller. The value must be greater than or equal to 0. |
| callback | AsyncCallback<Array\<[ExtensionAbilityInfo](js-apis-bundle-ExtensionAbilityInfo.md)>> | Yes | Callback used to return the Extension ability information. |
| want | [Want](js-apis-application-Want.md)| Yes | Want that contains the bundle name. |
| extensionFlags | number | Yes | Extension ability information to be returned. The default value is **0**. For details on the available enumerated values, see [ExtensionFlags](#ExtensionFlag9). |
| want | [Want](js-apis-application-Want.md) | Yes | Want that contains the bundle name. |
| extensionFlags | number | Yes | Extension ability information to be returned. The default value is **0**. The value must be greater than or equal to 0. |
| callback | AsyncCallback<Array\<[ExtensionAbilityInfo](js-apis-bundle-ExtensionAbilityInfo.md)>> | Yes | Callback used to return the Extension ability information. |