Frontend Development Blog

1 min read

Typing React Components in TypeScript (Practical Patterns)

Props, children, event handlers, generics in components, and common TS + React pitfalls interviewers ask about.

#React#Interviews

React Performance: An Interview Checklist

Practical performance levers: memoization, splitting, virtualization, and avoiding unnecessary renders.

#Performance#Interview

Custom Hooks: Extracting Reusable Logic

How to build and name custom hooks, and what makes them testable and reusable.

React Context: When to Use It (and When Not To)

Context basics, performance implications, and alternatives like composition.

Controlled vs Uncontrolled Components (Forms)

Controlled vs Uncontrolled Components (Forms)

How to think about form inputs, refs, and when each approach makes sense.

#Forms#Interview

State Updates and Batching in React

How React batches state updates and what it means for setState and derived state.

useMemo vs useCallback: When (Not) to Use Them

useMemo vs useCallback: When (Not) to Use Them

Performance hooks explained with practical rules of thumb and interview-ready examples.

#Performance#Interview

useEffect: Dependencies, Cleanup, and Common Traps

3 min read

useEffect: Dependencies, Cleanup, and Common Traps

When effects run, how dependency arrays work, and how to avoid stale closures.

3 min read

Keys in React Lists: Why They Matter

How keys help React preserve identity and avoid subtle UI bugs.