Master JavaScript Class Syntax: A Simple Guide

Learn to Define Classes Like a Pro with Straightforward Examples

Photo by Jorge Rosal on Unsplash

In JavaScript, classes are a fundamental building block for creating reusable and modular code. They provide a blueprint for creating objects with properties and methods. Understanding the syntax for declaring classes is crucial for any JavaScript developer.

In this article, we’ll explore the class syntax in a simple and straightforward manner, complete with up-to-date code examples.

Defining a Class

To define a class in JavaScript, we use the class keyword followed by the name of the class. Here's the basic syntax:

class ClassName {
  // class body
}

Within the class body, you can define properties and methods. Properties represent the data associated with the class, while methods define the behavior or actions that objects of the class can perform.

Class Properties

Properties in a class can be defined in the constructor method or directly within the class body (as of ES2022). Here’s an example of defining properties in the constructor:

class Person {
  constructor(name, age) {
    this.name = name; // property
    this.age = age; //…