How to Persist React State Safely
Persist React state to the browser with localStorage and sessionStorage. Load saved values on mount, and handle JSON and SSR safely.
Build modern UIs with React
Persist React state to the browser with localStorage and sessionStorage. Load saved values on mount, and handle JSON and SSR safely.
Know when local state is enough in React. Keep values in components, lift state when needed, and avoid adding a global store too early.
Avoid the state management mistakes that make React apps hard to maintain, from derived and duplicate state to mutating state and syncing it with Effects.
Compare inline styles, plain CSS, CSS Modules, Tailwind, and styled-components for React. See each approach on the same card and learn which to choose.
Compare CSS Modules and Tailwind CSS for React. See how scoped CSS files and utility classes style the same card, then pick the fit for your team.
Set up Tailwind CSS v4 in a Vite React app. Install the Vite plugin, import Tailwind in your CSS, and style a component with utility classes.
Build a dark mode toggle in React with Tailwind. Configure the dark variant, persist the choice, and avoid a flash of the wrong theme.
Avoid the React anti-patterns that quietly raise maintenance costs: redundant state, Effect-based syncing, mutation, index keys, and overused context and memoization.
Build inclusive React interfaces with semantic HTML, accessible names, visible focus, and ARIA only when a native element cannot express the behavior.
Fix the most common React accessibility mistakes: clickable divs, placeholder-only labels, missing alt text, color-only indicators, and unmanaged focus.