/* code sample using logger*/
class CoffeeMaker
  {
    constructor(name)
    {
      this.logger=new JSLogger(this.constructor.name);
    }
    warmUp()
    {
      this.logger.info("Starting warm up... at",new Date());
      this.logger.debug("Checking if the jar is placed properly");
      this.logger.info("Done with warm up");
    }
    startHeater()
    {
      this.logger.debug("Checking if water is available in the reservoir");
      this.logger.info("Starting the heater");
      this.logger.info("Started the heater.");
    }
    startPumpingWater()
    {
      this.logger.info("Started the pump");
      this.logger.warn("there might be water only for one cup.");
      this.logger.error("the collecting jar is not in place.");
    }
    makeCoffee()
    {
      this.warmUp();
      this.startHeater();
      this.startPumpingWater();
      this.logger.info("Done with making coffee");
    }
  }

let coffeeMaker=new CoffeeMaker("Kaushik's coffee maker");
coffeeMaker.makeCoffee();