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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.

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Cover image for ReactJS Anti Pattern　~useEffect~

Ogasawara Kakeru

Mar 4

ReactJS Anti Pattern　~useEffect~

#webdev #javascript #react #frontend

1 min read

Cover image for npx i18next-cli instrument

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npx i18next-cli instrument

#webdev #i18next #typescript #react

8 min read

Mar 27

Real-time React: Syncing State Across Browser Tabs

#react #javascript #webdev #tutorial

9 min read

Apr 7

React Server Components: What Actually Changes in Your Architecture

#react #nextjs #javascript #webdev

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Cover image for How to Build an HR Dashboard with Next.js: A Practical Guide

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How to Build an HR Dashboard with Next.js: A Practical Guide

#webdev #nextjs #react #tailwindcss

7 min read

Cover image for How I Built clsh: Phone-First Terminal Access to Your Mac

Mar 14

How I Built clsh: Phone-First Terminal Access to Your Mac

#webdev #react #terminal #opensource

7 min read

Apr 7

Next.js Server Actions and Forms: useFormState, Validation Errors, and File Uploads

#nextjs #react #typescript #webdev

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Mar 20

SwiftUI Is Like React + CSS-in-JS

#ios #mobile #react #swift

8 min read

Cover image for Cómo construí juanchi.dev con el stack más bleeding edge de 2025: Next.js 16, React 19, Tailwind v4 y Railway

Apr 7

Cómo construí juanchi.dev con el stack más bleeding edge de 2025: Next.js 16, React 19, Tailwind v4 y Railway

#spanish #espanol #experimentos #react

6 min read

Cover image for De 3 segundos a 300ms: cómo optimicé el performance de una app Next.js en producción

Apr 7

De 3 segundos a 300ms: cómo optimicé el performance de una app Next.js en producción

#spanish #espanol #tutoriales #react

6 min read

Apr 7

Tailwind CSS Patterns That Actually Scale: cva, cn(), and Design Tokens

#tailwindcss #react #webdev #css

5 min read

Nagendra Namburi

Mar 17

The Evolution of React Reusability Patterns - From Composition to Custom Hooks

#react #javascript #webdev #frontend

4 min read

Cover image for Mantine Split Pane v3 - Responsive Sizing, Container-Aware Panes, and a Leaner API

Giovambattista Fazioli

Mar 3

Mantine Split Pane v3 - Responsive Sizing, Container-Aware Panes, and a Leaner API

#webdev #react #typescript #nextjs

6 min read

Shue Zheng

Mar 3

Why Our Next.js 15 App Lost 80% of Its Traffic Overnight (And How We Fixed It) 📉

#nextjs #react #webdev #javascript

3 min read

Flynn L

Mar 3

Show Dev: I built an AI research workbench with React, FastAPI, and multi-agent LLMs

#showdev #ai #react #python

1 min read

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