What is Object-Oriented Programming?

Object-Oriented Programming (OOP) is a programming style that organizes code into objects.

An object contains both data (properties) and functions (methods).

Example in JavaScript:

class User {
  constructor(name) {
    this.name = name;
  }

  greet() {
    console.log("Hello " + this.name);
  }
}

const user1 = new User("John");
user1.greet();

The four main principles of OOP are:

1. Encapsulation

2. Inheritance

3. Polymorphism

4. Abstraction

OOP helps developers write cleaner, more maintainable, and reusable code.