- private static instance: Bootstrap;
- private isStarted: boolean;
- private workerScript: string;
- private workerImplementation: Wrk;
+ private static instance: Bootstrap | null = null;
+ private workerImplementation: WorkerAbstract | null = null;
+ private readonly storage: Storage;
+ private numberOfChargingStations: number;
+ private readonly version: string = version;
+ private started: boolean;
+ private readonly workerScript: string;