Learn to write cleaner, more modular, and more scalable code in JavaScript by gaining mastery of Object Oriented Programming (OOP). 

You'll start with the basics of object-oriented programming and build up to more advanced concepts such as prototypal inheritance, prototype chaining, method overriding and mixins. Along the way, you'll learn how each concept applies to JavaScript's sometimes unique way of handling things. You'll also see how various JavaScript features make it particularly convenient for OOP, with particular emphasis on changes introduced in ES6.

This course is filled with hands-on coding challenges, playgrounds, snippets, and illustrations to keep things interactive.

Learn Object-Oriented Programming in JavaScript

## Problem Statement
In this exercise, you have to implement inheritance in between classes in the 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)` which takes a string `name` and sets it as the name of the `Car`. 


* Implement a function `getDetails(carName)` which takes a string `carName` and appends it with the model 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
```

# Problem Statement
In this exercise, you have to implement inheritance in between classes in the 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)` which takes a string `name` and sets it as the name of the `Car`. 


* Implement a function `getDetails(carName)` which takes a string `carName` and appends it with the model 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
```

In this exercise, you need to implement inheritance between two classes, Vehicle and Car.

Introduction

Objects in JavaScript

Functions as Objects

OOP in JS - Exam 1

Classes

Inheritance

OOP in JS - Exam 2

Exercise 3: Inheritance with Cars

Problem Statement

Task 1

Task 2

Sample Input

Sample Output