Update myFunc_service

output

CarService.wheels : myService = [object Object] 
CarFactory.wheels : myFactory = ::Bad 
CarProvider.wheels : myProvider = function (numCylinder) { this.numCylinder = numCylinder; this.dealer = dealerName; } 

CarService.wheels : {"dealer":"Bad","numCylinder":4} 
CarFactory.wheels : {"dealer":"Bad","numCylinder":6} 
CarProvider.wheels : {"numCylinder":6,"dealer":"Good"} 

CarService.wheels : 4 Bad
CarFactory.wheels : 6 Bad
CarProvider.wheels : 6 Good

CarService.wheels : 4 Bad
CarFactory.wheels : 8 Bad
CarProvider.wheels : 8 Good