131 articles
RSSHow to fix Astro 5 server islands — server:defer directive ignored, fallback slot missing, cookies/headers in deferred component, output config mismatch, dynamic island fetch URL, and caching the static shell.
How to fix Tailwind CSS v4 errors — tailwind.config.js ignored, @import 'tailwindcss' not loading, @theme custom values not applied, content scanning misses files, Vite plugin setup, and v3 to v4 migration gotchas.
How to fix @formkit/auto-animate issues — parent ref setup, React useAutoAnimate hook, Vue directive, animation customization, disabling for specific elements, and framework integration.
How to fix Blurhash image placeholder issues — encoding with Sharp, decoding in React, canvas rendering, Next.js image placeholders, CSS blur fallback, and performance optimization.
How to fix cmdk command palette issues — Dialog setup, custom filtering, groups and separators, keyboard shortcuts, async search, nested pages, and integration with shadcn/ui and Tailwind.
How to fix CodeMirror 6 issues — basic setup, language and theme extensions, React integration, vim mode, collaborative editing, custom keybindings, and read-only mode.
How to fix Conform form validation issues — useForm setup with Zod, server action integration, nested and array fields, file uploads, progressive enhancement, and Remix and Next.js usage.
How to fix Embla Carousel issues — React setup, slide sizing, autoplay and navigation plugins, loop mode, thumbnail carousels, responsive breakpoints, and vertical scrolling.
How to fix gql.tada issues — schema introspection, type-safe GraphQL queries, fragment masking, urql and Apollo Client integration, IDE setup, and CI type checking.
How to fix GSAP animation issues — timeline and tween basics, ScrollTrigger setup, React useGSAP hook, cleanup and context, SplitText, stagger animations, and Next.js integration.
How to fix i18next issues — react-i18next setup, translation file loading, namespace configuration, language detection, interpolation, pluralization, and Next.js integration.
How to fix ky HTTP client issues — instance creation, hooks (beforeRequest, afterResponse), retry configuration, timeout handling, JSON parsing, error handling, and migration from fetch or axios.
How to fix Lingui.js i18n issues — setup with React, message extraction, macro compilation, ICU format, lazy loading catalogs, and Next.js integration.
How to fix Lottie animation issues — lottie-react and lottie-web setup, JSON animation loading, playback control, interactivity, lazy loading, and performance optimization.
How to fix Mantine UI issues — MantineProvider setup, PostCSS configuration, theme customization, dark mode, form validation with useForm, and Next.js App Router integration.
How to fix Mapbox GL JS issues — access token setup, React integration with react-map-gl, markers and popups, custom layers, geocoding, directions, and Next.js configuration.
How to fix Monaco Editor issues — React integration with @monaco-editor/react, worker setup, TypeScript IntelliSense, custom themes, multi-file editing, and Next.js configuration.
How to fix nuqs URL search params state management — useQueryState and useQueryStates setup, parsers, server-side access, shallow routing, history mode, and Next.js App Router integration.
How to fix pdf-lib issues — creating PDFs from scratch, modifying existing PDFs, embedding fonts and images, form filling, merging documents, and browser and Node.js usage.
How to fix Paraglide.js i18n issues — message compilation, type-safe translations, SvelteKit and Next.js integration, language switching, and message extraction from existing code.
How to fix prism-react-renderer issues — Highlight component setup, language support, custom themes, line highlighting, copy button, and integration with MDX and documentation sites.
How to fix Pusher real-time issues — client and server setup, channel types, presence channels, authentication endpoints, event binding, connection management, and React integration.
How to fix React Aria and React Aria Components issues — hooks vs components API, styling with Tailwind CSS, custom components, collections pattern, forms, and accessibility compliance.
How to fix react-pdf and @react-pdf/renderer issues — PDF viewer setup, worker configuration, page rendering, text selection, annotations, and generating PDFs in React.
How to fix Sonner toast notification issues — Toaster setup, toast types, custom styling, promise toasts, action buttons, positioning, dark mode, and Next.js App Router integration.
How to fix Astro Starlight documentation site issues — configuration, sidebar ordering, custom components, overrides, i18n, search, and content collections.
How to fix View Transitions API issues — same-document transitions, cross-document MPA transitions, view-transition-name CSS, Next.js and Astro integration, custom animations, and browser support.
How to fix Liveblocks issues — room setup, real-time presence with useOthers, conflict-free storage with useMutation, Yjs integration, authentication, and React suspense patterns.
How to fix Million.js issues — compiler setup with Vite and Next.js, block() optimization rules, component compatibility constraints, automatic mode, and debugging performance gains.
How to fix Panda CSS issues — PostCSS setup, panda.config.ts token system, recipe and pattern definitions, conditional styles, responsive design, and integration with Next.js and Vite.
How to fix Qwik issues — component$ boundaries, useSignal and useStore reactivity, serialization with dollar signs, useTask$ and useVisibleTask$, Qwik City routing, and integration with React components.
How to fix Radix UI issues — Popover and Dialog setup, controlled vs uncontrolled state, portal rendering, animation with CSS or Framer Motion, accessibility traps, and Tailwind CSS integration.
How to fix Svelte 5 Runes issues — $state and $state.raw reactivity, $derived computations, $effect lifecycle, $props and $bindable, migration from Svelte 4 stores, and component patterns.
How to fix TanStack Router issues — file-based routing setup, route tree generation, loader and search params, authenticated routes, type-safe navigation, and code splitting.
How to fix UnoCSS issues — Vite plugin setup, preset configuration, attributify mode, icons preset, shortcuts, custom rules, and integration with Next.js, Nuxt, and Astro.
How to fix Vanilla Extract issues — .css.ts file setup, style and recipe APIs, sprinkles for utility classes, theme tokens, dynamic styles, and integration with Next.js, Vite, and Remix.
How to fix Biome linter/formatter issues — biome.json configuration, migrating from ESLint and Prettier, VSCode extension setup, CI integration, and rule override syntax.
How to fix date-fns issues — timezone handling with date-fns-tz, parseISO vs new Date, locale import and configuration, DST edge cases, v3 ESM migration, and common format pattern mistakes.
How to fix dnd-kit issues — DndContext setup, sensors configuration, useSortable with SortableContext, drag overlays, collision detection algorithms, and accessible drag and drop.
How to fix esbuild issues — entry points, plugin API, JSX configuration, CSS modules, watch mode, metafile analysis, external packages, and common migration problems from webpack.
How to fix Framer Motion issues — variants, AnimatePresence for exit animations, layout animations, useMotionValue, server component errors, and performance optimization.
How to fix HTMX issues — attribute syntax, target and swap strategies, out-of-band swaps, event handling, CSP configuration, response headers, and debugging HTMX requests.
How to fix Jotai state management issues — atom scope, derived atoms, async atoms with Suspense, atomWithStorage SSR, useAtomValue vs useSetAtom, and debugging stale state.
How to fix MDX issues — Next.js App Router setup with @next/mdx and next-mdx-remote, custom component mapping, frontmatter parsing with gray-matter, remark and rehype plugins, and TypeScript configuration.
How to fix Mock Service Worker issues — browser vs Node setup, handler registration, worker start timing, passthrough requests, and common MSW v2 API changes from v1.
How to fix next-intl issues — App Router setup with middleware, useTranslations in server and client components, locale detection, pluralization, number and date formatting, and routing configuration.
How to fix Nuxt 3 issues — useFetch vs $fetch, server routes in server/api, composable SSR rules, useAsyncData, hydration errors, and Nitro configuration problems.
How to fix Recharts issues — ResponsiveContainer setup, data format for each chart type, custom tooltips, axis configuration, legends, animations, and TypeScript types.
How to fix Remix issues — loader and action setup, nested route outlet, useLoaderData typing, error boundaries, defer with Await, and common React Router v7 migration problems.
How to fix RxJS issues — subscription management, switchMap vs mergeMap vs concatMap, error handling with catchError, Subject types, cold vs hot observables, and Angular async pipe.
How to fix shadcn/ui issues — Tailwind CSS v4 vs v3 configuration, CSS variables, dark mode setup, component installation, cn() utility, and common errors after adding components.
How to fix SolidJS reactivity issues — signal access inside JSX, effect dependencies, createResource with loading states, Show and For components, store mutations, and common mistakes coming from React.
How to fix Storybook issues — CSF3 story format, addon configuration, webpack vs Vite builder, decorator setup, args not updating component, and Storybook 8 migration problems.
How to fix styled-components issues — ThemeProvider setup, Next.js SSR with ServerStyleSheet, shouldForwardProp, attrs, TypeScript theme typing, and styled-components v6 migration.
How to fix SvelteKit issues — load function data flow, +page.server.ts vs +page.ts, form actions with use:enhance, hooks.server.ts, SSR vs CSR mode, and common routing mistakes.
How to fix TanStack Query (React Query v5) issues — query keys, stale time, enabled flag, mutation callbacks, optimistic updates, QueryClient setup, and SSR with prefetchQuery.
How to fix TanStack Table (React Table v8) issues — column definitions, server-side sorting and filtering, row selection, virtual rows with TanStack Virtual, and v7 to v8 migration errors.
How to fix Tiptap editor issues — useEditor setup in React, StarterKit configuration, custom nodes and marks, SSR with Next.js, collaborative editing, and content serialization.
How to fix Valtio state management issues — proxy vs snapshot, useSnapshot for React, subscribe for side effects, derived state with computed, async actions, and Valtio with React Server Components.
How to fix WebAssembly issues — instantiateStreaming vs instantiate, CORS for WASM files, linear memory limits, wasm-bindgen JS interop, imports/exports mismatch, and WASM in bundlers.
How to fix XState v5 issues — state machine definition, guards and actions typed correctly, useMachine hook, createActor, context updates, child actors, and common v4 to v5 migration errors.
How to fix Zustand state management issues — selector optimization, persist middleware, shallow comparison, devtools setup, slice pattern for large stores, and common subscription mistakes.
How to fix Angular pipe issues — declaring pipes in modules, standalone pipe imports, pure vs impure pipes, async pipe with observables, pipe chaining, and custom pipe debugging.
How to fix CSS scroll issues — scroll-behavior: smooth not working, scroll-snap alignment problems, overflow container conflicts, scroll-margin for fixed headers, and browser compatibility.
How to fix ESLint configuration issues — flat config vs legacy config, extends conflicts, parser options, plugin resolution, per-directory overrides, and migrating to ESLint 9.
How to fix IndexedDB issues — transaction lifecycle, version upgrades, blocked events, cursor iteration, IDBKeyRange queries, and using idb wrapper library to avoid callback hell.
How to fix React Hook Form issues — register spread syntax, Controller for UI libraries, validation modes, watch vs getValues, nested fields, and form submission errors.
How to fix React useTransition and startTransition issues — what counts as a transition, Suspense integration, concurrent rendering requirements, and common mistakes that prevent transitions from deferring.
How to fix tRPC issues — router setup, type inference across packages, context injection, middleware, error handling, and common tRPC v10/v11 configuration mistakes.
How to fix TypeScript conditional type issues — infer keyword usage, distributive conditional types, deferred evaluation, naked type parameters, and common conditional type patterns.
How to fix TypeScript discriminated union errors — type guards, exhaustive checks, narrowing with in operator, never type, and common patterns for tagged unions.
How to fix TypeScript template literal type errors — string combination types, conditional inference, Extract and mapped types with template literals, and common pitfalls.
How to fix Vue Router params not updating when navigating between same-route paths — watch $route, beforeRouteUpdate, onBeforeRouteUpdate, and component reuse behavior explained.
How to fix Vue 3 slot issues — v-slot syntax, named slots, scoped slots passing data, default slot content, fallback content, and dynamic slot names.
How to fix Web Worker issues — postMessage data cloning, module workers, error handling, SharedArrayBuffer setup, Comlink, and common reasons workers silently fail.
How to fix Zod schema validation issues — parse vs safeParse, transform and preprocess, refine for cross-field validation, discriminatedUnion, error formatting, and common schema mistakes.
How to fix CSS Grid issues — implicit vs explicit grid, grid-template-areas, auto-placement, subgrid, alignment, and common mistakes with grid-column and grid-row.
How to fix Vite dev server proxy issues — proxy configuration in vite.config.ts, path rewriting, WebSocket proxying, HTTPS targets, and common misconfigurations.
How to fix Vue Teleport not working — target element not found, SSR with Teleport, disabled prop, multiple Teleports to the same target, and timing issues.
How to fix Angular HTTP interceptors not triggering — provideHttpClient setup, functional interceptors, order of interceptors, excluding specific URLs, and error handling.
How to fix Angular Signals not updating — signal mutations, computed dependency tracking, effect() cleanup, toSignal() with Observables, and migrating from zone-based change detection.
How to fix Angular standalone component errors — imports array, NgModule migration, RouterModule vs RouterLink, CommonModule replacement, and mixing standalone with module-based components.
How to fix Tailwind CSS not applying styles — content config paths, JIT mode, dynamic class names, PostCSS setup, CDN vs build tool, and purging issues.
How to fix GraphQL subscriptions not receiving updates — WebSocket setup, subscription protocol, Apollo Client config, server-side pub/sub, authentication over WebSocket, and reconnection.
How to fix Next.js font loading issues — next/font/google setup, CSS variable approach, local fonts, font-display settings, FOUT flash, and Tailwind CSS font integration.
How to fix React forwardRef issues — ref null on custom components, useImperativeHandle setup, forwardRef with TypeScript, class components, and React 19 ref as prop changes.
How to fix React Portal event bubbling — understanding Portal event propagation, modal close on outside click, stopPropagation side effects, focus management, and accessibility.
How to fix React StrictMode double render issues — understanding intentional double invocation, fixing side effects, useEffect cleanup, external subscriptions, and production behavior.
How to fix React Suspense boundaries not triggering — lazy() import syntax, use() hook, data fetching libraries, ErrorBoundary vs Suspense, and Next.js loading.tsx.
How to fix Svelte store subscription memory leaks — auto-subscription with $, manual unsubscribe, derived store cleanup, custom store lifecycle, and SvelteKit SSR store handling.
How to fix TypeScript function overload errors — overload signature compatibility, implementation signature, conditional types as alternatives, method overloads in classes, and common pitfalls.
How to fix TypeScript mapped type errors — Partial, Required, Readonly, Record, Pick, Omit, conditional types, template literal types, and distributive behavior.
How to fix Vue composable reactivity loss — toRefs for destructuring, returning refs vs raw values, reactive object pitfalls, stale closures, and composable design patterns.
How to fix Vue Composition API reactivity loss — destructuring reactive objects, toRefs, storeToRefs, ref vs reactive, watch vs watchEffect, and template not updating.
How to fix Pinia store state not updating components — storeToRefs for destructuring, $patch for partial updates, avoiding reactive() wrapping, getters vs computed, and SSR hydration.
How to fix Vue Router 404 errors on page refresh in history mode — server configuration for nginx, Apache, Vite, Express, and Netlify, plus hash mode as a fallback.
How to reduce Webpack bundle size — code splitting, tree shaking, dynamic imports, bundle analysis, moment.js replacement, lodash optimization, and production build configuration.
How to fix Webpack dev server not reloading — Hot Module Replacement configuration, watchFiles settings, polling for Docker/WSL, HMR API for custom modules, and port conflicts.
How to fix Angular form validation not working — Reactive Forms vs Template-Driven, custom validators, async validators, touched/dirty state, and error message display.
How to fix Angular lazy loading not working — loadChildren syntax, standalone components, route configuration mistakes, preloading strategies, and debugging bundle splits.
How to fix RxJS memory leaks in Angular — unsubscribing from Observables, takeUntilDestroyed, async pipe, subscription management patterns, and detecting leaks with Chrome DevTools.
How to fix React hydration errors — server/client HTML mismatches, useEffect for client-only code, suppressHydrationWarning, dynamic content, and Next.js specific hydration issues.
How to fix TanStack Query returning stale cached data — staleTime, invalidateQueries, query key structure, optimistic updates, and cache synchronization after mutations.
How to fix TypeScript 'could not find a declaration file for module' errors — installing @types packages, writing custom .d.ts files, module augmentation, and tsconfig paths.
How to fix Vue computed properties not updating — reactive dependency tracking, accessing nested objects, computed setters, watchEffect vs computed, and Vue 3 reactivity pitfalls.
How to fix Vue v-model on custom components — defineModel, modelValue/update:modelValue pattern, multiple v-model bindings, v-model modifiers, and Vue 2 vs Vue 3 differences.
How to fix path alias errors in webpack and Vite — configuring resolve.alias, tsconfig paths, babel-plugin-module-resolver, Vite alias configuration, and Jest moduleNameMapper.
How to fix Angular change detection issues — OnPush strategy not triggering, async pipe, markForCheck vs detectChanges, zone.js and zoneless patterns, and manual change detection triggers.
How to fix CSS container queries not working — setting container-type correctly, understanding containment scope, fixing @container syntax, and handling browser support and specificity issues.
How to fix Next.js App Router fetch caching issues — understanding cache behavior, revalidation with next.revalidate, opting out with no-store, cache tags, and debugging stale data.
How to fix React Server Components errors — useState and hooks in server components, missing 'use client' directive, async component patterns, serialization errors, and client/server boundary mistakes.
How to fix Svelte store not updating the UI — writable vs readable stores, derived stores, subscribe pattern, store mutation vs assignment, and custom store patterns.
How to fix Vue Router navigation guards not working — beforeEach, beforeEnter, in-component guards, async guards, redirect loops, and route meta authentication patterns.
How to reduce Webpack bundle size — code splitting, lazy loading, tree shaking, analyzing the bundle with webpack-bundle-analyzer, replacing heavy dependencies, and configuring splitChunks.
How to fix Axios 'Network Error' with no status code — CORS blocks, SSL certificate issues, request timeout, no internet connection, and debugging with interceptors.
How to fix ESLint no-unused-vars false positives — TypeScript types, destructuring ignores, React imports, function arguments, and configuring the rule to match your codebase patterns.
Why React useEffect runs twice in development with Strict Mode, how to handle the double invocation correctly, when to add cleanup functions, and when the double-run actually reveals a real bug.
How to fix TypeScript enum problems — const enum with isolatedModules, enums not available at runtime, string vs numeric enums, and migrating to union types or as const objects.
How to fix Vite environment variables showing as undefined — missing VITE_ prefix, wrong .env file for the mode, import.meta.env vs process.env, TypeScript types, and SSR differences.
How to fix CSS custom properties not applying — wrong scope, missing fallback values, JavaScript not setting variables on the right element, and how CSS variables interact with media queries and Shadow DOM.
How to fix Next.js middleware not executing — wrong file location, matcher config errors, middleware not intercepting API routes, and how to debug middleware execution in Next.js 13 and 14.
How to fix Next.js build failures — TypeScript errors blocking production builds, module resolution failures, missing environment variables, static generation errors, and common next build crash causes.
How to fix Vite's chunk size warning — why bundles exceed 500 kB, how to split code with dynamic imports and manualChunks, configure the chunk size limit, and optimize your Vite production build.
How to fix CSS animations not working — @keyframes not applying, animation paused, transform conflicts, reduced motion settings, and common animation property mistakes.
How to fix Vue 3 reactive data not updating the UI — why ref and reactive lose reactivity, how to correctly mutate reactive state, and common pitfalls with destructuring and nested objects.
How to fix CSS position sticky not working — element scrolls away instead of sticking, caused by overflow hidden on a parent, missing top value, wrong stacking context, or incorrect height on the container.
How to fix CSS Grid not working — grid-template-columns has no effect, grid items not placing correctly, implicit vs explicit grid confusion, and common grid layout debugging techniques.
How to fix CSS Flexbox not working — why display flex has no effect, flex children not aligning, flex-grow not stretching, and how to debug common Flexbox layout issues.
How to fix React Context not triggering re-renders — caused by mutating state directly, wrong provider placement, stale closures, and missing value changes that React can detect.
How to fix 'No routes matched location' in React Router v6 — caused by missing Routes wrapper, wrong path syntax, nested route mismatches, and v5 to v6 migration issues.
How to fix z-index not working in CSS. Covers stacking contexts, position property requirement, parent stacking context limits, opacity and transform creating new stacking contexts, flexbox and grid z-index, and the isolation property.