Aug 15, 2026· 5 min read
React Virtual DOM and Reconciliation Explained
Learn how React's Virtual DOM and reconciliation work. Understand render, diffing, and commit, and why React only updates the DOM nodes that actually changed.
React
React
Build modern UIs with React
250 tutorials
12 of 250 tutorials
Aug 15, 2026· 5 min read
Your First React Component: Build a Counter from Scratch
Build your first React component, a counter, from scratch. Learn how useState and onClick work together to keep the screen in sync with a number.
React
Aug 15, 2026· 5 min read
How to Share Data in React with Props, Context, and Stores
React gives you props, context, and external stores for sharing data. Learn when to use each approach to move values between components.
React
Aug 15, 2026· 6 min read
React useEffect Explained: When You Actually Need It
useEffect synchronizes a React component with systems outside React, like timers, network requests, or the browser DOM. Learn when to use it and when to skip it.
React
Aug 15, 2026· 6 min read
How to Access and Measure DOM Elements in React
Use useRef to reach a DOM node, then read its size and position with getBoundingClientRect or track changes with ResizeObserver.
React
Aug 15, 2026· 6 min read
React useReducer Explained with Practical Examples
Learn how the useReducer Hook manages state through a pure reducer function, how to dispatch actions, and when the pattern beats useState.
Reactusereducer
Aug 15, 2026· 6 min read
How to Combine useReducer and Context
Combine useReducer with context to share reducer state and dispatch down the tree without prop drilling, using a provider and small custom hooks.
ContextReactusereducer
Aug 15, 2026· 6 min read
How to Create a Custom Hook in React
Learn the steps to extract repeated stateful logic into a reusable custom Hook, name it correctly, and call it from any component.
HooksReact
Aug 15, 2026· 6 min read
How to Reuse Stateful Logic Without Reusing State
Understand why custom Hooks share behavior, not values, and how each call to the same Hook keeps its own independent state.
ReactHooks
Aug 15, 2026· 6 min read
Build a useMediaQuery Hook for Responsive React UIs
Build a useMediaQuery Hook that tracks a CSS media query with matchMedia, updates on viewport changes, and drives responsive React layouts.
ReactHooks
Aug 15, 2026· 7 min read
How to Handle Loading, Error, Empty, and Success States
Model loading, error, empty, and success states in React with one status value. Show a clear, accessible message for every request outcome.
ReactData Fetching
Aug 15, 2026· 6 min read
How to Cancel Fetch Requests in React with AbortController
Cancel fetch requests in React with AbortController. Pass a signal to fetch, abort in the Effect cleanup, and tell aborts apart from real errors.
Data FetchingReact