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Frameworks & web · #react
Learn how the css helper lets you write declarative, reusable style fragments that react to component props without extra boilerplate.
Learn how React 18's automatic batching and the useTransition hook can keep your UI smooth when filtering thousands of items, with a concrete code example and trade‑offs to consider.
Compose DialogOverlay and DialogContent for a focus-safe modal. Learn the mechanism, worked example, common mistakes, and verification steps for @reach/dialog.
Snapshot tests let you lock component output in Jest. This guide shows how to create, update, and manage snapshots, highlights limits, and warns against common mistakes.
Diagnose and resolve layout shifts and styling conflicts in Chakra UI apps by checking theme context, responsive arrays, CSS precedence, z‑index usage, and performance. Follow the step‑by‑step guide to pinpoint issues and apply targeted fixes.
React 18 automatically batches state updates from timers, promises, and native events into one render when using createRoot. Learn the mechanism, limits, and how to verify it with the Profiler.
A step-by-step guide to collecting styled-components CSS on the server with ServerStyleSheet, injecting it into the HTML head, and hydrating without duplicate styles.
A practical guide to implementing React error boundaries that catch JavaScript errors in component trees, isolate failures, and present fallback UIs.
A step-by-step diagnostic guide for MobX 6.x and React 18: why an observer-wrapped component stays frozen when the store updates, and how to fix missing observables, strict-mode violations, and version mismatches.
styledcomponents
jest
chakraui
mobx