Aspect |
Composition |
Inheritance |
Primary Use Case |
Building reusable UI components and managing code complexity |
Extending base classes with additional functionality (less common in React) |
Flexibility |
High - Easily mix and match components |
Lower - Hierarchical and rigid structure |
State and Props |
State and props are passed explicitly to child components |
State and methods are inherited |
Code Reuse |
Promotes code reuse by composing multiple components |
Promotes code reuse by inheriting properties and methods |
Examples |
Wrapping components, Higher Order Components (HOCs), Render Props, Hooks |
Extending a class-based component |
Component Updates |
Easier to manage and understand updates and side effects |
Can be harder to track state and prop changes through inheritance |
Testing |
Easier to test individual components |
Testing can be more complex due to tightly coupled functionality |
Error Handling |
Easier to handle errors in isolated components |
Errors can propagate through the inheritance chain, making debugging more difficult
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