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🎉 Day 46 — React Mastery Completed (Final Summary & Congratulations!)

🎉 Day 46 — React Mastery Completed (Final Summary & Congratulations!) Congratulations, developer! 👏 You’ve successfully completed the 45-Day React.js Roadmap — from understanding the fundamentals to mastering advanced concepts like Redux, Routing, Testing, and Deployment. 📘 What You’ve Learned ✅ React basics — Components, JSX, Props, and State ✅ Hooks — useState, useEffect, useRef, useMemo, and Custom Hooks ✅ Context API and Redux Toolkit for global state management ✅ Routing with React Router & Protected Routes ✅ Data fetching using Fetch API, Axios, React Query ✅ Advanced Patterns — Compound Components, Render Props, HOCs ✅ Styling — CSS Modules, Styled Components, Theming ✅ Animations, Accessibility, Testing, and Performance Optimization ✅ Deployment on Vercel, Netlify, or GitHub Pages 🧩 Final Project Ideas Now that you’re done, build real-world apps to polish your skills: 📝 Task ...
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⏳ Day 54: Introduction to Asynchronous Programming

⏳ Day 54: Introduction to Asynchronous Programming

JavaScript runs on a single thread, yet it handles multiple operations seamlessly using asynchronous programming. This is achieved through the event loop.

🔹 setTimeout() and setInterval()

Used to schedule tasks in the future.

setTimeout(() => console.log("Runs after 2 seconds"), 2000);
setInterval(() => console.log("Runs every second"), 1000);

🔸 The Event Loop

The event loop allows asynchronous operations like timers, promises, and fetches to execute without blocking.

console.log("Start");

setTimeout(() => console.log("Async Task"), 0);

console.log("End");

// Output:
// Start
// End
// Async Task

🧪 Try it Yourself

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