Component-Based Architecture

Component-Based Architecture (CBA) is a software architecture pattern that emphasizes separating software into distinct, reusable components. Each component encapsulates a specific functionality and can interact with other components through well-defined interfaces.

• **Component**: A self-contained unit of software that provides specific functionality.
• **Interface**: A defined boundary through which components communicate.
• **Reusability**: Components can be reused across different applications, reducing redundancy.
• **Encapsulation**: Implementation details of a component are hidden from other components, exposing only the interface.

3.1 Designing Components

1. Identify the core functionalities needed in your application.
2. Define the interfaces for each component.
3. Develop the components independently, ensuring they adhere to the defined interfaces.
4. Integrate components to form the complete application.

3.2 Example Code

class UserComponent {
    constructor() {
        this.userData = {};
    }

    setUser(data) {
        this.userData = data;
    }

    getUser() {
        return this.userData;
    }
}

// Usage
const userComponent = new UserComponent();
userComponent.setUser({ name: "John Doe", age: 30 });
console.log(userComponent.getUser()); // Output: { name: "John Doe", age: 30 }
            

• Keep components small and focused on a single responsibility.
• Design interfaces that are intuitive and easy to use.
• Document components and their interfaces for future reference.
• Test components independently to ensure reliability.