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Lessons (4)

• React Internals & Concurrent Rendering

  Understand reconciliation, render versus commit, batching, Suspense and concurrent rendering so React performance fixes target the work users …

• Next.js Rendering: CSR, SSR, SSG, ISR & Server Components

  … shows immediately /} <Suspense fallback={<ReviewsSkeleton / } <Reviews id={id} / {/ slow: streams in later /} </Suspense </ ); } Which mode should I use …

• Frontend Performance & Core Web Vitals

  … lazy, Suspense } from "react"; const ChartEditor = lazy(() = import("./ChartEditor")); // separate chunk <Suspense fallback={<Spinner / } {showEditor && <ChartEditor / } </Suspense // Next …

• React Hooks in Practice

  … Read a promise or context during render (with Suspense) Key takeaways - Call hooks at the top level, in …