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Difference between Class and Object

Difference between Class and Object

One of the most confusing aspects of object-oriented programming for beginners is the difference between class properties and object properties. In this article, we’ll explore the differences between these two types of properties and provide some examples to help illustrate their usage. We’ll also discuss when it’s appropriate to use class properties versus object properties. By the end of this article, you’ll have a better understanding of both class inheritance and object-oriented programming in JavaScript.

What is Class?

Class inheritance is a fundamental principle of object-oriented programming. It allows one class to inherit the properties and methods of another class. In this way, child classes can reuse the functionality of parent classes and extend them with new functionality. Class inheritance is often used to create a hierarchy of classes, where each class inherits from its parent class in a “is-a” relationship. For example, a child class might inherit from a parent class called “Animal” in order to create a more specific child class, such as “Dog” or “Cat”. Class inheritance can be a powerful tool for code reuse, but it is important to use it judiciously to avoid creating unnecessarily complex class hierarchies.

What is Object?

Object programming is a programming paradigm that uses objects and their interactions to design and write programs. It is based on the principle of data encapsulation, which encourages developers to bundle related code and data together into an object. Object programming also makes use of inheritance, a mechanism for reusing code from existing objects, and polymorphism, a technique for allowing objects to interact in different ways. As a result, object programming can lead to more reliable and efficient code. Furthermore, it can make code simpler to understand and maintain. Object programming is an important tool for developers who want to create robust and scalable software.

Difference between Class and Object

Class inheritance is a feature of some object-oriented programming languages which allows a class to inherit characteristics from another class. In most cases, this process involves the subclass inheriting the parent class’s variables and methods; however, the subclass can also override some of these elements. Object-oriented programming, on the other hand, is a programming paradigm which seeks to create software as a collection of objects which interact with one another. These objects can be created by the programmer or generated by the runtime environment. Class inheritance is just one way in which objects can interact with one another; other common mechanisms include delegation and aggregation. Class inheritance can be thought of as a “is-a” relationship, while object-oriented programming can be thought of as a “has-a” relationship. Class inheritance should not be confused with object composition, which is another common mechanism for creating software objects. Class composition involves an object containing references to other objects; it is sometimes known as a “has-a” relationship. Class inheritance, on the other hand, results in an object being part of another object; it is sometimes known as an “is-a” relationship.


In object-oriented programming, an object is an instance of a class. A class defines the properties and behaviors common to all objects of that type. When you create a new object, you specify its class, which determines the properties and behaviors it has. You can also create subclasses that inherit the properties and behaviors of their parent classes. This allows you to define more specific behavior for particular types of objects. So what’s the difference between Class inheritance and Object programming? Inheritance is when one Class inherits from another Class, while Object programming is when each individual Object has its own methods and variables independent from any other Objects.

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