Search⌘ K
Home
Courses
JavaScript in Detail: From Beginner to Advanced

JavaScript Classes

Explore the concept of JavaScript classes introduced in ES2015, understand how to use the class keyword to define properties and methods, and learn about constructors and static methods. Gain practical knowledge on creating objects, managing properties, and leveraging class-based OOP syntax.

We'll cover the following...

Background

With the implementation of OOPs, we know how to use constructor functions to create objects of the same properties. In this lesson, we look at another approach. Exclusive to ES2015 version of JavaScript, we can use the class-based approach to create objects with the same properties.

Introduction to classes

Similar to constructor functions, classes are blueprints of a type of object with the certain properties and methods to generate objects. All objects created from a class have the same properties and methods, though not necessarily the same values. Instead of using functions, they use class keyword to create classes used to implement this functionality.

Syntax

Take a look at the syntax of a class to learn how to use it.

Node.js
class ClassName {
  constructor(parameter1, parameter2,...) {
    //initializing class properties 
  }
  //class methods defined
}

We can learn from above:

  • The keyword class ...