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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 Day 5 - Building a Production-Ready Portfolio: Phase 3 - Freezing the Product Surface

Jan 27

Day 5 - Building a Production-Ready Portfolio: Phase 3 - Freezing the Product Surface

#webdev #python #react #programming

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Dec 22 '25

Conditional Rendering in React: A Practical Guide for Beginners

#react #webdev #beginners #programming

4 min read

Cover image for Fix 'Objects are not valid as a React child' Error (2026)

Jan 27

Fix 'Objects are not valid as a React child' Error (2026)

#react #reactnative #webdev #programming

5 min read

Cover image for Why static diagrams fail: simulating an e-commerce checkout flow in Robust Design

Joshua

Dec 23 '25

Why static diagrams fail: simulating an e-commerce checkout flow in Robust Design

#systemdesign #react #webdev #programming

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Cover image for Master React Testing Step-by-Step: Jest, Vitest & React Testing Library

Jan 26

Master React Testing Step-by-Step: Jest, Vitest & React Testing Library

#react #javascript #nextjs

10 min read

Cover image for React.js vs Next.js: What to Choose, When, and Why?

Jan 26

React.js vs Next.js: What to Choose, When, and Why?

#webdev #react #learning #nextjs

3 min read

Cover image for React Render vs Commit: What Actually Happens (DOM vs React Native)

Jan 24

React Render vs Commit: What Actually Happens (DOM vs React Native)

#react #reactnative #programming

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Dec 27 '25

💎 Conhecem o useImmer ?

#useimmer #react

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Cover image for Why Does React Use a Virtual DOM?

Tiago

Jan 26

Why Does React Use a Virtual DOM?

#react #dom #vdom #javascript

6 min read

Abhishek Arankal

Jan 15

Todo App

#showdev #beginners #javascript #react

8 min read

usapop

Jan 26

Will React Compiler Make Manual Memoization Obsolete? — Things to Know Before Adopting It

#react #javascript #vite #babel

6 min read

Dec 22 '25

Build a Lightweight Testimonials Slider in React (Beginner Friendly)

#react #performance #tutorial #beginners

3 min read

Cover image for Building an Offline-First POS SaaS Entirely with AI Including Desktop, Mobile Apps, and Landing Page

Adan Ali

Dec 22 '25

Building an Offline-First POS SaaS Entirely with AI Including Desktop, Mobile Apps, and Landing Page

#ai #react #electron #sass

2 min read

Soumil Mukhopadhyay

Dec 21 '25

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#postgres #react #node #express

2 min read

Tanaike for Google Developer Experts

Jan 21

Smart Stowage: Building a 3D Cargo Digital Twin with Gemini 3

#gemini #react #ai #node

6 min read

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