1. What are some best practices you follow when writing React code in a team environment?
- Component Organization: I follow a feature-based folder structure (e.g.,
src/features/Todo/) to group related components, styles, and tests together, improving modularity and maintainability.
- Component Naming: Use clear and descriptive names for components and hooks (
UserCard, useFetchUser), and follow PascalCase for components, camelCase for variables/functions.
- State Management: I localize state as much as possible. For global state, I opt for tools like Redux Toolkit , Zustand , or React Context based on complexity.
- Prop Drilling Avoidance: For deeply nested components, I extract logic into context or custom hooks.
- Hooks and Logic Reuse: Business logic goes into custom hooks (
useForm, useDebounce) for reuse and testability.
- Code Review Culture: I advocate for regular PR reviews with enforced CI linting/tests to ensure code quality and team alignment.
2. How do you ensure your React code is clean, readable, and follows consistent standards?
Approach:
- Linting & Formatting: I use ESLint (with Airbnb or custom config) and Prettier integrated into the dev workflow (CI + IDE) to enforce consistent syntax and formatting.
- Typescript: I strongly prefer TypeScript to improve clarity and prevent runtime bugs via static typing.
Functional Components & Hooks: I write components as pure functions and avoid class components unless legacy code demands it.
- Single Responsibility Principle: Each component handles a single concern. If a component grows too large, I refactor UI/logic into subcomponents or custom hooks.
- Naming & Semantics: Descriptive naming, semantic HTML (
<section>, <article>), and ARIA attributes for accessibility.
Example:
const UserList = ({ users }: { users: User[] }) => (
<ul>
{users.map((user) => (
<li key={user.id}>{user.name}</li>
))}
</ul>
);
Clean, typed, and simple.
3. How do you handle version control and collaboration on a React project with multiple developers?
Practices:
- Git Workflow: I follow Git Flow or GitHub Flow , with short-lived feature branches (
feature/login-page), pull requests, and code reviews.
- Branch Protection & CI: Enforce PR reviews, automated tests, and linting before merging via tools like GitHub Actions or CircleCI.
- Code Ownership: Components and features are owned by specific developers or squads. Ownership reduces ambiguity and speeds up reviews.
- Documentation: I document component APIs and usage patterns via Storybook or internal docs to ease onboarding and collaboration.
- Merge Conflicts: Regularly pull and rebase from
main or develop to avoid large conflicts and integration surprises.
4. How do you stay updated with the latest changes in React and frontend development?
Strategies:
- Official Channels: Follow the React blog, GitHub discussions, and RFCs for upcoming features and direction (e.g., React Server Components).
- Curated Newsletters: Subscribe to React Status , Frontend Focus , and JavaScript Weekly .
- Communities: Engage in dev Twitter, Stack Overflow, and Reddit to stay on top of ecosystem tools (e.g., Vite, TanStack, SWR).
- Experimentation: I regularly prototype with new libraries or patterns in side projects or Codesandbox experiments.
- Conferences & Talks: Watch talks from ReactConf, JSConf, and local meetups. I also occasionally present findings back to the team.
5. How do you ensure your React components are reusable and maintainable?
Key Techniques:
- Separation of Concerns: I separate presentation (dumb) and container (smart) components. Presentational components receive all data via props.
- Custom Hooks: Abstract shared logic into hooks. Example:
useFormValidation, usePagination, etc.
- Composable Props: Use props like
renderItem, children, or as to make components extensible.
Example:
const List = ({
items,
renderItem,
}: {
items: T[];
renderItem: (item: T) => React.ReactNode;
}) => <ul>{items.map(renderItem)}</ul>;
- Prop Types & Defaults: Use TypeScript interfaces and sensible defaults to make components self-documenting.
- Avoid Over-abstracting: Components should be generalized only when there’s a clear reuse case, avoiding premature generalization.
- Testing: Each reusable component is covered with unit tests using React Testing Library , ensuring they work as expected across use cases.