How do you add properties to a class in JavaScript?

Table of Contents

• Introduction
• Adding Properties with Constructor Function
  • Example of Adding Properties
• Adding Properties with Class Field Syntax
  • Example of Class Field Syntax
• Conclusion

Introduction

In JavaScript, classes allow you to define objects with properties and methods. Properties are variables that hold data related to the class instance. You can add properties using the constructor function or by utilizing class field syntax introduced in ES6.

Adding Properties with Constructor Function

Example of Adding Properties

In this example, properties name and age are added in the constructor using this, which refers to the instance of the class.

Adding Properties with Class Field Syntax

You can also define properties directly in the class body using the class field syntax, which is syntactic sugar introduced in ES6.

Example of Class Field Syntax

Conclusion

Adding properties to a class in JavaScript can be done easily using the constructor or class field syntax. This structure helps in creating organized and maintainable code by grouping related data and functionalities together.