Component Design Patterns

Introduction

Component design patterns are essential in component-driven development, providing reusable solutions to common design problems encountered when building user interfaces. These patterns promote consistency, maintainability, and scalability in applications.

Key Concepts

• **Component**: A self-contained piece of UI that manages its state and behavior.
• **Design Pattern**: A general repeatable solution to a commonly occurring problem in software design.
• **Props**: Short for properties, these are inputs to a component that allow data to be passed.
• **State**: A data structure that holds information about the component's current situation.

Common Design Patterns

1. Container/Presentational Pattern: Separates logic from UI presentation.
2. Higher-Order Components (HOCs): A function that takes a component and returns a new component with added functionality.
3. Render Props: A technique for sharing code between React components using a prop that is a function.
4. Compound Components: A pattern that allows for components to communicate implicitly through context.

Example of Higher-Order Component

const withLogging = (WrappedComponent) => {
    return class extends React.Component {
        componentDidMount() {
            console.log('Component mounted');
        }
        render() {
            return ;
        }
    };
};
                    

Best Practices

• Keep components small and focused on a single task.
• Use descriptive names for components and props.
• Document component APIs thoroughly.
• Utilize composition over inheritance.

FAQ