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

# Hiding Properties in ES6

In order to hide the *class properties*, they can be declared inside the `constructor` using the `var` *keyword* so that they're only accessible through getters/setters, which can also be defined inside the `constructor`. 

For the ES5 version, the convention of using `_` prefix before values that need to be protected is also followed in the ES6 version. 

# Example 

Let's take a look at an example that implements data hiding in the ES6 version:

This lesson explains the steps to hide properties in the ES6 version of classes.

Introduction

Objects in JavaScript

Functions as Objects

OOP in JS - Exam 1

Classes

Inheritance

OOP in JS - Exam 2

Protecting Properties

Hiding Properties in ES6