Mastering Class Fields: Unlocking the Power of Public and Private Variables in JavaScript

Discover how to effectively utilize class fields to enhance your JavaScript code and improve code organization and encapsulation

Max N
3 min readApr 3, 2024

In the ever-evolving landscape of JavaScript, the introduction of class fields has been a game-changer for developers. These powerful features allow us to define properties directly within a class, providing a more intuitive and organized way to manage the state of our objects.

In this article, we’ll dive deep into the world of class fields, exploring the differences between public and private variables, and how to leverage them to write cleaner, more maintainable code.

Understanding Class Fields

Class fields, also known as class properties, are a relatively new addition to the JavaScript language. They provide a way to define variables directly within a class, rather than having to assign them within the constructor or as methods. This makes it easier to manage the state of an object and improves the overall readability and organization of your code.

Public Class Fields

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Max N

A writer that writes about JavaScript and Python to beginners. If you find my articles helpful, feel free to follow.