Gain insights into writing cleaner, modular, scalable JavaScript code through OOP. Explore basics to advanced concepts like prototypal inheritance, method overriding, and ES6 features.

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 are given a class `Product`. You need to implement the following tasks:

## Task 1

Define the `constructor` which takes and initializes the following properties:

  * `name`: the name of the product.

  * `price` the price of the product.
  * `amount`: the amount of product available in inventory.
  * `madeIn`: the country in which the product is made in.
  * `expiryDate`: the expiry date of the product.
  * `brand`: the name of the brand that made the product.

## Task 2

Define a `static` function `checkExpiry(product1,product2)`. Here's what it should do:

  * It should take two product objects of the same type but from different brands as parameters.
  * It should compare their `expiryDate` with the current date.

  * Based on the difference of the `expiryDate` from the current date it should return which brand's product to buy, i.e., return the `brand` property of that product.
       * It should return `Neither` if both products have expired.
    * It should return  `brand` property of `product1` if `product2` has expired, but `product1` hasn't.
    * It should return  `brand` property of `product2` if `product1` has expired, but `product2` hasn't.
    * If neither of the products has expired it should compute the difference of both of their expiry dates from the current date and return the `brand` of the product whose difference is greater.

    * It should return `Either` if both products have the same expiry date.



# Problem Statement

In this exercise, you are given a class `Product`. You need to implement the following tasks:

# Task 1

Define the `constructor` which takes and initializes the following properties:

  * `name`: the name of the product.

  * `price` the price of the product.
  * `amount`: the amount of product available in inventory.
  * `madeIn`: the country in which the product is made in.
  * `expiryDate`: the expiry date of the product.
  * `brand`: the name of the brand that made the product.

# Task 2

Define a `static` function `checkExpiry(product1,product2)`. Here's what it should do:

  * It should take two product objects of the same type but from different brands as parameters.
  * It should compare their `expiryDate` with the current date.

  * Based on the difference of the `expiryDate` from the current date it should return which brand's product to buy, i.e., return the `brand` property of that product.
       * It should return `Neither` if both products have expired.
    * It should return  `brand` property of `product1` if `product2` has expired, but `product1` hasn't.
    * It should return  `brand` property of `product2` if `product1` has expired, but `product2` hasn't.
    * If neither of the products has expired it should compute the difference of both of their expiry dates from the current date and return the `brand` of the product whose difference is greater.

    * It should return `Either` if both products have the same expiry date.



In this exercise, you have to compare the expiry dates of two products and, based on that, suggest which brand's product should be bought.

Introduction

Objects in JavaScript

Functions as Objects

OOP in JS - Exam 1

Classes

Inheritance

OOP in JS - Exam 2

Exercise 2: Expired or Not?

Problem Statement

Task 1

Task 2