[Home](./index.md) > [@firebase/performance-types](./performance-types.md) > [FirebasePerformance](./performance-types.firebaseperformance.md) > [dataCollectionEnabled](./performance-types.firebaseperformance.datacollectionenabled.md) ## FirebasePerformance.dataCollectionEnabled property Controls the logging of custom traces. Signature: ```typescript dataCollectionEnabled: boolean; ```