React2 min read
Controlled vs Uncontrolled Components (Forms)
How to think about form inputs, refs, and when each approach makes sense.
#Forms#Interview
Feb 08, 2026Practice
Practice
Frontend interview articles
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103 articles · page 11 of 12
React2 min read
State Updates and Batching in React
How React batches state updates and what it means for setState and derived state.
#Interview
Feb 08, 2026Practice
React5 min read
useMemo vs useCallback: Differences, Examples & Interview Q&A
Compare useMemo and useCallback with a working React example, dependency rules, common mistakes, and a render-tracing interview exercise.
#Performance#Interview
Feb 08, 2026Practice
React~16 min
useEffect: Dependencies, Cleanup, and Common Traps
When effects run, how dependency arrays work, reference stability traps, and avoiding stale closures.
#Interview
Feb 08, 2026Practice
React3 min read
Keys in React Lists: Why They Matter
How keys help React preserve identity and avoid subtle UI bugs.
#Interview
Feb 08, 2026Practice
React3 min read
Components, Props, and State (Interview Essentials)
Core building blocks: props vs state, one-way data flow, and when to lift state up.
#Interview
Feb 08, 2026Practice
React3 min read
React Rendering: The Mental Model
How React thinks about rendering, reconciliation, and why state changes cause re-renders.
#Interview
Feb 08, 2026Practice
JavaScript1 min read
Mastering JavaScript Async/Await
A comprehensive guide to understanding and using async/await in JavaScript for cleaner asynchronous code.
#Async#Promises
Nov 08, 2025677 viewsPractice
CSS1 min read
CSS Grid vs Flexbox: When to Use Each
Understanding the differences between CSS Grid and Flexbox and when to use each layout system.
#Layout#Flexbox
Nov 07, 2025852 viewsPractice