Part 6/10:
Hooks like useState and useEffect enable functional components to manage state and lifecycle events without converting to class components, simplifying state management and improving code clarity.
Use Effect vs. Callbacks
Question 11: Differentiate between useEffect and a regular callback in React.
Using useEffect allows side effects to run after rendering and can run based on dependency changes, while a regular callback typically executes immediately and isn't linked to component lifecycle.
Preventing Child Component Rendering
Question 12: How can you prevent a child component from re-rendering in React?
You can use React.memo() or useCallback() for preserving references and only rerendering when necessary.