Real-World Example: User Class

Consider an application where we manage user profiles. We can create a User class with properties like name, email, and role, and methods to update the user’s email or promote their role.

JavaScript
class User {
  constructor(name, email, role = "user") {
    this.name = name;
    this.email = email;
    this.role = role;
  }

  updateEmail(newEmail) {
    this.email = newEmail;
    console.log(`Email updated to: ${this.email}`);
  }

  promote() {
    this.role = "admin";
    console.log(`${this.name} is now an ${this.role}.`);
  }
}

// Creating User instances
const user1 = new User("Alice", "alice@example.com");
const user2 = new User("Bob", "bob@example.com", "moderator");

user1.updateEmail("alice.new@example.com"); // Output: Email updated to: alice.new@example.com
user2.promote();                            // Output: Bob is now an admin.

In this example:

  • Each User object represents an individual user with properties name, email, and role.
  • The updateEmail and promote methods allow modifying user data.
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