How to Learn React: A Simple Roadmap

🚀 Week 1 Recap – Small Steps, Big Progress 7 days into my web development revision… and here’s what I covered this week 👇 ⚛️ React Revision Components, props & mapping data Understanding useState Functions + hooks + advanced state management with useReducer & Zustand 🪲 Debugging Realizing how powerful console.log() actually is Following logic step-by-step instead of guessing ⚙️ Backend Basics Setting up a simple Express.js server Understanding how routes & responses actually work This week wasn’t about building huge projects — it was about fixing foundations and improving how I think about code. Consistency is already making a difference. Let’s see where Week 2 takes me 🔥 #WebDevelopment #ReactJS #NodeJS #ExpressJS #JavaScript #FrontendDevelopment #BackendDevelopment #100DaysOfCode #CodingJourney #BuildingInPublic

While reading the official React docs, I came across this gem — “You Might Not Need an Effect.” And trust me, this section alone can level up your React skills instantly. Most beginners (including me once 😅) tend to use useEffect() for every prop, state, or render update. But React 19 teaches a cleaner way — use Effects only when you truly step outside React’s world. 🚫 When You Don’t Need useEffect() To update derived state ➤ If a value depends on props/state, compute it directly in the render. const fullName = `${first} ${last}`; No Effect needed! To filter, map, or sort data ➤ Use memoization (useMemo) instead. const activeUsers = useMemo(() => users.filter(u => u.active), [users]); For user-triggered logic ➤ Move logic inside event handlers rather than inside Effects. const handleClick = () => setCount(c => c + 1); ✅ When You Should Use useEffect() Fetching data or connecting to APIs useEffect(() => { fetch('/api/data').then(res => res.json()).then(setData); }, []); Working with external systems — WebSocket, DOM events, localStorage Synchronizing React with non-React code — timers, animations, subscriptions 💡 Golden Rule: If your code doesn’t interact with something outside React (like the browser, API, or network), you probably don’t need useEffect(). Less useEffect = fewer bugs, faster renders, and cleaner code 💪 #React #WebDevelopment #Frontend #JavaScript #CleanCode #React19 #LearningJourney

I just built 15 accessible React components in 12 hours that put most component libraries to shame. Zero npm dependencies. 100% WCAG 2.1 AA compliant. Completely free. And yes, they actually work with screen readers. Here's what most libraries get wrong: They ship bloated frameworks for simple interactions. They ignore keyboard navigation. They build "pretty" components that screen readers can't understand. Then act surprised when accessibility lawsuits roll in. What I built instead: ✓ 15 production-ready components you can copy-paste today ✓ One-click code copy with syntax highlighting ✓ ⌘+K fuzzy search for instant discovery ✓ 80% pure CSS, 20% Web Animations API (no 500kb dependencies) ✓ Dark mode, 95+ Lighthouse score ✓ Every component tested with JAWS, NVDA, VoiceOver Tech stack: Next.js 14, TypeScript, React 18, CSS Modules The controversial take: You don't need shadcn, Material-UI, or any massive library. Most of what you're importing could be 50 lines of CSS. But nobody wants to hear that because learning a new library feels more impressive than writing good CSS. Try it live: https://lnkd.in/e7RAWJnG GitHub: https://lnkd.in/eiQzkuiB Question: Should accessibility be built-in by default, or is "we'll add it later" still acceptable in 2025? #React #TypeScript #Accessibility #WebDevelopment #OpenToWork

A modern recipe web app built with JavaScript (ES6+), Webpack, and API integration 🍕👨🍳 🧩 Key Features: Search for recipes from a real API View detailed cooking instructions Add and manage bookmarks Upload your own custom recipes This project helped me strengthen my JavaScript, modular architecture, and asynchronous programming skills. 🔗 Live Demo: https://lnkd.in/env348YU 💻 GitHub Repo: https://lnkd.in/ezZKpXti 🎥 Here’s a quick demo of how it works 👇 #JavaScript #WebDevelopment #Frontend #CodingJourney #OpenSource #LearningByBuilding

Downloading a file using React.js — How I did it (A quick walkthrough from idea → API → Excel download) Slide 5: More on (Why are we directly playing with the DOM in React?) React is great for managing the UI state — rendering components, updating elements, and reacting to user input —but it doesn’t provide built-in APIs for certain browser-level actions, like: →Triggering a file download →Accessing the clipboard →Controlling focus or scroll behavior →Handling media playback (video.play()) For these special cases, we have to interact directly with the browser’s DOM APIs —because React simply doesn’t abstract those parts of the web platform. In the case of file downloads, React doesn’t have a built-in way to: →Create a temporary file link (blob: URL) →Trigger a native download in the browser That’s why we use document.createElement('a') — just to let the user download the file #ReactJS #WebDevelopment #JavaScript #FrontendTips #CodingJourney

Just learned how React Hooks simplify state management! I’ve been exploring React Hooks lately, and I’m amazed by how they replace complex class components with cleaner, functional code. Here are my key takeaways: 1️⃣ useState — Perfect for managing simple, local state. No need for class constructors or this.setState(). 2️⃣ useEffect — Helps handle side effects like API calls or event listeners — super useful for cleaner, lifecycle-like logic. 3️⃣ useContext — Makes sharing state across components easy without heavy libraries like Redux. 4️⃣ Custom Hooks — Great way to reuse logic (e.g., form validation, API fetching). Before hooks, I often found myself juggling multiple lifecycle methods or passing props too deeply. Now, with hooks, my components are smaller, cleaner, and easier to test. What’s your favorite React Hook or use case? #React #JavaScript #WebDevelopment #Frontend #ReactHooks #LearningInPublic

🚀 Day 58 of My JavaScript Journey Today I learned one of the most important topics for real-world web development: Async / Await + Fetch API 🔥 When we deal with APIs (data from servers), JavaScript runs asynchronously. To avoid callback hell and make code readable, we use: ✅ async — tells the function it will handle asynchronous tasks ⏳ await — pauses the code until the Promise resolves 🌐 fetch() — used to GET or POST data to servers 👉 Example (GET Request) async function getData() { const url = "https://lnkd.in/dkkpW7-M"; const response = await fetch(url); const data = await response.json(); console.log("Fetched Data:", data); } 💡 Why this is important? Used in every modern web app Clean & readable code Makes API handling smooth and efficient Essential for React, Node.js, Express, Next.js & full-stack development 🌐 #JavaScript #AsyncAwait #FetchAPI #WebDevelopment #FullStackDeveloper #LearningInPublic #CodeHelp #Day58 #100DaysOfCode 🚀 Love Babbar

⚛️ Day 1 of my React Series — Let’s start with Components Ever wondered what a React component really is? It’s simpler than it sounds 👇 A React Component is just a JavaScript function that returns markup. But here’s the twist — it doesn’t return HTML, it returns JSX! JSX looks like HTML but works like JavaScript — that’s what makes React so powerful and declarative. 💡 In simple words: Think of components as LEGO blocks — reusable pieces that combine to build entire UIs. 🧩 One component for a button, one for a card, one for a navbar — and together, they make your app. #React #JavaScript #FrontendDevelopment #WebDevelopment #Learning #ReactJS #Frontend #Coding

💾 What Really Happens When You Hit Save in a React Project You write some JSX. You hit Save. Your screen refreshes. And magic happens or so it seems 😅 Here’s what’s actually going on 👇 1️⃣ Vite / CRA compiles your code Your JSX → JavaScript through Babel or SWC. 2️⃣ Webpack (or Vite) bundles it It rebuilds only what changed that’s why hot reload feels instant. 3️⃣ React’s Reconciler runs Compares the Virtual DOM and updates only what changed in the real DOM. 4️⃣ Browser paints your UI again Minimal re-render, maximum speed. 5️⃣ You keep coding like a wizard 🧙♂️ 💡 It’s not magic. It’s React, Babel, and the browser dancing in sync. 👉 Ever had that “wait… how did that just work?” moment in React? #ReactJS #FrontendDevelopment #WebDev #JavaScript #CodingJourney #LearnToCode

🚀 Ready to level up your web development game? Discover how to get started with Node.js — the powerful JavaScript runtime for building fast, scalable applications. This step-by-step tutorial covers everything from understanding what Node JS is, to installing it on your machine and running your first script. Perfect for beginners and a handy refresher for pros. Click through and ignite your coding journey! 🔥 👉 Read the full guide: https://lnkd.in/gpSwCVFU