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Exploring Inheritance in Object-Oriented Design

Understanding the Power and Pitfalls of Inheritance in JavaScript

Max N
2 min readApr 4, 2024

Inheritance is a fundamental concept in object-oriented programming (OOP) that allows objects to acquire properties and behaviors from other objects. While inheritance can promote code reuse and organization, it also introduces complexities and challenges.

In this article, we’ll delve into inheritance in object-oriented design, providing practical insights and up-to-date code examples to help you grasp this essential concept effectively.

What is Inheritance?

Inheritance is a mechanism in OOP where a class (or object) can inherit properties and methods from another class (or object) called the superclass (or parent class). This allows for the creation of hierarchical relationships between classes, promoting code reuse and modularity.

Let’s see an example of inheritance in JavaScript:

// Parent Class
class Animal {
constructor(name) {
this.name = name;
}

// Method
speak() {
console.log(`${this.name} makes a sound`);
}
}

// Child Class
class Dog extends Animal {
// Method Override
speak() {
console.log(`${this.name} barks`);
}
}

// Creating Instances
const dog = new Dog("Buddy")…

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Max N
Max N

Written by Max N

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

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