Controlled vs Uncontrolled Components (Forms)
How to think about form inputs, refs, and when each approach makes sense.
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Event loop, closures, this, hoisting, async, and the fundamentals interviews test.
Types vs interfaces, narrowing, generics, utility types, and practical TS patterns.
Rendering, hooks, state, effects, performance, and common production patterns.
Semantics, layout, flexbox/grid, responsive design, accessibility, modern CSS.
The first lesson in each roadmap — great if you want a clean entry point.
A practical, interview-focused guide to the JS event loop: call stack, Web APIs, task queues, microtasks vs macrotasks, and common trick questions with real examples.
A deep, interview-ready guide to TypeScript types vs interfaces: extension, unions, intersections, declaration merging, and practical patterns for real codebases.
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Results
How to think about form inputs, refs, and when each approach makes sense.
How React batches state updates and what it means for setState and derived state.
Performance hooks explained with practical rules of thumb and interview-ready examples.
When effects run, how dependency arrays work, and how to avoid stale closures.
How keys help React preserve identity and avoid subtle UI bugs.
Core building blocks: props vs state, one-way data flow, and when to lift state up.
How React thinks about rendering, reconciliation, and why state changes cause re-renders.
A comprehensive guide to understanding and using async/await in JavaScript for cleaner asynchronous code.
Understanding the differences between CSS Grid and Flexbox and when to use each layout system.