README.md

parking-lot-system-design

There are two classes defined:

ParkingLot(): It is the main class which is used to initialize a parking lot.

• createParkingLot(input) : Creates a parking lot with given input.

• parkCar(input) : Allocates nearest slot from entry gate to the car.

• leaveCar(input) : Removes car in given slot in parking lot.

• getParkingStatus() : Returns an array containing slot number, registration number and color.

• getCarsWithSameColor(input) : Returns a comma separated string containing registration numbers of cars with same color e.g. KA-01-HH-1234, KA-01-HH-9999, KA-01-P-333.

• getSlotsWithSameColorCar(input) : Returns a comma separated string containing slot numbers of car with same color e.g. 3, 5, 6.

• getSlotByCarNumber(input) : Finds slot number of car for given registration number. It returns Not found when car is not present.

• findNearestAvailableSlot() : Finds nearest free slot.

Car()

• new Car(NUMBER, COLOR) : Constructor used to initialize a car object containing two fields, registration number and color.

Note - Error cases are handled in all functions

Open terminal and type the following:

1. cd parking_lot : Navigates to the parking_lot root folder.

2. npm install : Installs all the dependencies.

3. npm run start : Starts the console application in cli

4. npm run test : Runs all the tests and generate the coverage report.

Dependencies Used

• Mocha: A JavaScript test framework for Node.js programs.

• Chai: A BDD/TDD assertion library for Node.js and it can be paired with any JS testing framework.

• nyc: A JS code coverage tool extensively tested with Mocha for measuring code coverage.

• Chalk: A npm module used to style terminal string.