Exercise 3: Inheritance with Cars

Problem Statement

In this exercise, you have to implement inheritance in between classes in ES6 version of JavaScript.

Task 1

The base class Vehicle is declared below. You have to define its constructor. The constructor should contain:

• Protected values _speed and _model.

• Methods getModel and getSpeed which return the protected speed and model values.

Task 2

The child class Car is also declared. You have to:

• Modify its declaration such that it extends the Vehicle class.

• Define and initialize its constructor.

• Implement a function setDetails(name) in it which takes a string name and sets it as the name of the Car.

• Implement a function getDetails(carName) in it which takes a string carName and appends it with the model, name, and speed of the car. It should store the final result in a variable and return it.

Sample Input

getDetails(X)
getDetails(S)
getDetails(Roadster)

Sample Output

X, Tesla, 100
S, Tesla, 100
Roadster, Tesla, 100