How do I set up environment and create first app?

# Prerequisites - Install Node.js (version 18 or higher recommended). - Install a code editor like VS Code. # Create App with Vite (Recommended for Beginners) 1. Run: `npm create vite@latest my-react-app -- --template react` 2. `cd my-react-app` 3. `npm install` 4. `npm run dev` Open http://localhost:5173 in browser. Edit `src/App.jsx` to see live reload. # Alternative: Online Editor Use [CodeSandbox](https://codesandbox.io) or StackBlitz for no install. **Why Vite?** Fast dev server, supports JSX out-of-box per react.dev.

How do I master components and jsx basics?

## Key Concepts from react.dev/learn - Components: JS functions returning JSX. - JSX: HTML-like in JS, use `className`, self-close tags. **Example App.jsx:** ```jsx import { useState } from 'react' function MyButton() { return Click me } export default function App() { return ( Welcome ) } ``` Practice nesting, embedding JS `{user.name}`.

How do I add state and event handling?

## useState Hook Import `useState` for dynamic data. **Counter Example:** ```jsx function Counter() { const [count, setCount] = useState(0); return ( setCount(count + 1)}> Count: {count} ); } ``` - Events: `onClick={handleClick}` (no `()`). - Lift state up for sharing via props. Follow react.dev/learn/adding-interactivity.

How do I handle lists, conditionals, and props?

## Lists & Keys ```jsx const items = [{id:1, name:'Apple'}]; {items.map(item => {item.name} )} ``` ## Conditionals `{show && Visible }` or ternary. ## Props Pass data: ` ` Practice: Shopping list from react.dev/learn.

How do I build tic-tac-toe project?

Follow official tutorial: https://react.dev/learn/tutorial-tic-tac-toe Steps: 1. Setup board with Squares. 2. Props for values. 3. useState in Square, then lift to Board. 4. Handle clicks, winner calc, history. Deploy to Netlify/Vercel. Explore hooks like useEffect next.

Master React: Build Interactive UIs in 5 Steps

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Step-by-Step Guide

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Prerequisites

Install Node.js (version 18 or higher recommended).
Install a code editor like VS Code.

Create App with Vite (Recommended for Beginners)

Run: npm create vite@latest my-react-app -- --template react
cd my-react-app
npm install
npm run dev

Open http://localhost:5173 in browser. Edit src/App.jsx to see live reload.

Alternative: Online Editor

Use CodeSandbox or StackBlitz for no install.

Why Vite? Fast dev server, supports JSX out-of-box per react.dev.

Why this step matters:

-Establishes a working dev setup for hands-on practice
-Enables quick iteration to focus on React concepts

30-60 minutes

Node.js, VS Code, Vite, Browser

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Definition of Done

•App runs at localhost:5173 with live reload
•Can edit App.jsx and see changes instantly

Common Mistakes to Avoid

❌ Using deprecated Create React App

→Use Vite or Next.js as per official docs

❌ Forgetting `npm install` after create

→Always run install and dev in sequence

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Suggested Videos

React Tutorial for Beginners

React Full Course - Beginner to Pro (React 19, 2025)

Learn React JS - Full Beginner's Tutorial

📚
Learning Resources

📖 Online Courses

Learn React

beginner

Scrimba

Official React Tutorial

beginner

react.dev

📖 Recommended Books

The Road to React

beginner

by Robin Wieruch

Learning React

beginner

by Alex Banks, Eve Porcello

🌐 Helpful Websites

React Official Documentation

documentation

Interactive tutorials and quick start

React Developer Roadmap

roadmap

Visual path from beginner to advanced

🛠️ Useful Tools

Vite

Bundler

Fast build tool for React apps

CodeSandbox

Editor

Online React editor, no setup

VS Code

Editor

Code editor with React extensions

Master React: Build Interactive UIs in 5 Steps