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React

Official tag for Facebook's React JavaScript library for building user interfaces

about #react

React is a declarative, component-based library, you can learn once, and write anywhere

Editor Guide

Check out this Editor Guide
or this post to learn how to add code syntax highlights, embed CodeSandbox/Codepen, etc

Official Documentations & Source

Improving Your Chances for a Reply

by putting a minimal example to either JSFiddle, Code Sandbox, or StackBlitz. Describe what you want it to do, and things you've tried. Don't just post big blocks of code!

Where else to ask questions

StackOverflow tagged with [reactjs] Beginner's Thread / Easy Questions (Jan 2020) on r/reactjs subreddit.

Note: a new "Beginner's Thread" created as sticky post on the first day of each month

Learn in Public

Don't afraid to post an article or being wrong.
Learn in public.

👋 Sign in for the ability to sort posts by relevant, latest, or top.

Thumu. Srinivas Reddy

Sep 7 '25

Server-Sent Events (SSE)

#react

2 min read

Cover image for How to Optimize the Performance of Your React Website

Iz Mroen

Oct 11 '25

How to Optimize the Performance of Your React Website

#react #webdev #productivity #javascript

4 min read

Cover image for Next.js ⚡ + Zustand 🐻: A Production-Grade File Structure for Scalable State Management

Oct 10 '25

Next.js ⚡ + Zustand 🐻: A Production-Grade File Structure for Scalable State Management

#react #nextjs #webdev #typescript

5 min read

Cover image for “When Not to Use useMemo, useCallback, and useReducer in React”

Sep 7 '25

“When Not to Use useMemo, useCallback, and useReducer in React”

#webdev #javascript #react #frontend

2 min read

Cristian Sifuentes

Oct 10 '25

Understanding `'PropsWithChildren'` and `verbatimModuleSyntax` in React + TypeScript 5

#react #typescript #frontend #programming

4 min read

Cristian Sifuentes

Oct 10 '25

Mastering Vitest + React Testing Library: Fixing ‘beforeEach’, ‘toBeInTheDocument’, and JSDOM Gotchas

#react #typescript #javascript #programming

4 min read

Vivek Lagshetti

Sep 11 '25

Understanding Event Delegation in React: Before & After

#webdev #javascript #react #learning

2 min read

Cristian Sifuentes

Oct 9 '25

Tired of TypeScript? Why ReScript Finally Clicked for Me (Narrative)

#rescript #typescript #javascript #react

3 min read

Cristian Sifuentes

Oct 9 '25

ReScript in 2025 — Fast, Sound, and Ready for React (Hybrid Guide)

#rescript #react #javascript #typescript

2 min read

Oct 16 '25

How React’s useState Really Works — A Simple Explanation from First Principles

#javascript #frontend #beginners #react

3 min read

Sep 20 '25

⚡React useEffect Hook — Side Effects Made Simple

#discuss #webdev #amankureshi #react

1 min read

Cover image for From Engineering Competitions to SaaS: How I Built Viz-CAD Without a Marketing Budget

Ferhatr10

Sep 6 '25

From Engineering Competitions to SaaS: How I Built Viz-CAD Without a Marketing Budget

#cad #engineering #react #sass

3 min read

Cover image for Rendering Patterns in Next.js: CSR, SSR, SSG, ISR, RSC, PPR, and DPR

Farzan Kalantari

Oct 9 '25

Rendering Patterns in Next.js: CSR, SSR, SSG, ISR, RSC, PPR, and DPR

#nextjs #react #performance #programming

7 min read

Cover image for Building Reusable React Card Components with Styled Components

Oct 9 '25

Building Reusable React Card Components with Styled Components

#programming #reactcards #react #frontend

2 min read

Minoosh

Oct 9 '25

🌍 My Journey with React Leaflet: Learning to Build an Interactive Map

#webdev #javascript #beginners #react

2 min read

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