With this use case, we are going to see how these concepts can be useful to solve some real-life problems. Let's dive into classes in JS a bit deeper using an example use case. The addition of a new member function like showPrice is much easier as compared to adding a function directly into the constructor's prototype. Noticed the difference! We have achieved the same results but with much cleaner syntax. Pen1.showPrice() Using Class keyword in JS

Have a look at the example below: function Pen(name, color, price) `) Ĭonst pen1 = new Pen('Marker', 'Blue', '$3') It also brought in similarities to different OOP-based programming languages such as C++ and Java.īefore classes, we used constructor functions to do OOP in JavaScript. Thus the introduction of classes in JS made it easier for developers to build software around OOP concepts. Classes in JavaScript are syntactic sugar over the prototype-based inheritance model which we use to implement OOP concepts. JavaScript still follows a prototype-based inheritance model. Introduction to constructor functions in JSĬlasses were introduced in EcmaScript 2015 (ES6) to provide a cleaner way to follow object-oriented programming patterns.Introduction to Prototypal Inheritance, and Prototype chaining.Class Diagrams: We are going to use them to showcase our example.Abstract Functions and Inheritance in Chair Management Systemīefore you start reading this blog post you should have a basic understanding of the following topics:.So in this guide, you will learn about classes in JavaScript, inheritence, abstract functions, how to use keywords such as super and extends, static keywords, and private members of classes. I think it's helpful to work with a practical use case because it is much simpler to understand the concepts when you can relate them to real life. In this blog post I'll walk you through a real life example which uses the concept of classes in Javascript.

What is the use of javascript