Learn React.js – Interview Questions, Concepts & Examples
Master modern React for interviews with practical questions covering Hooks, rendering behavior, state management, performance optimization, and React internals.
HooksComponentsState ManagementRoutingFormsRenderingPerformance OptimizationReact PatternsReact InternalsAdvanced Concepts
Beginner 25 Intermediate 20 Advanced 20
App.jsxReact 18
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const [state, setState] = useState(0)
useEffect(() => {
document.title = state
}, [state])