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Compare modern React state management solutions. Choose the right tool for your application. Zustand import { create } from ‘zustand’; const useStore = create((set) => ({ count: 0, increment: () => set((s) => ({ count: s.count + 1 })) })); Redux Toolkit import { createSlice, configureStore } from ‘@reduxjs/toolkit’; const counterSlice = createSlice({ name: ‘counter’, … Read more

Run high-performance code in the browser. Use WebAssembly for computationally intensive tasks. What is WebAssembly? Binary instruction format for web browsers Near-native performance Language-agnostic Rust to Wasm // Rust code #[wasm_bindgen] pub fn add(a: i32, b: i32) -> i32 { a + b } // Build cargo build –target wasm32-unknown-unknown JavaScript Usage import init, { … Read more

Build installable web applications. Create PWAs that work offline and feel native. Manifest // manifest.json { “name”: “My PWA”, “short_name”: “App”, “start_url”: “/”, “display”: “standalone”, “background_color”: “#ffffff”, “icons”: [{ “src”: “icon.png”, “sizes”: “192×192” }] } Service Worker const CACHE = ‘my-pwa-cache’; self.addEventListener(‘install’, (e) => { e.waitUntil( caches.open(CACHE).then((cache) => cache.addAll([‘/’, ‘/app.js’]) ); }); self.addEventListener(‘fetch’, (e) => … Read more

Learn Deno 2.0 for modern development. Node.js alternative with built-in TypeScript. Why Deno? ✅ TypeScript out of the box ✅ Secure by default ✅ Built-in testing ✅ Standard library included Running Code deno run index.ts deno test Permissions –allow-net for network access –allow-read for file access –allow-all for full access Web Server Deno.serve({ port: 8000 … Read more

Explore Bun – the fast JavaScript runtime. Everything you need in one tool. Why Bun? ✅ 3x faster than Node.js ✅ Bundle, transpile, run JS ✅ Built-in SQLite ✅ Web APIs compatible Installation curl -fsSL https://bun.sh/install | bash Run Scripts bun run index.js bun run dev HTTP Server Bun.serve({ port: 3000, fetch(req) { return new … Read more

Optimize your website for better performance. Improve Core Web Vitals and user experience. Core Web Vitals ✅ LCP (Largest Contentful Paint) < 2.5s ✅ FID (First Input Delay) < 100ms ✅ CLS (Cumulative Layout Shift) < 0.1 Image Optimization ✅ Use WebP/AVIF ✅ Lazy loading ✅ Responsive images Code Splitting // React const LazyComponent = ... Read more

Build accessible websites for everyone. Learn WCAG guidelines and implementation. Semantic HTML Click me ✅ Click ❌ ARIA Attributes ★ 4.5 rating Focus Management // Trap focus in modal modal.addEventListener(‘keydown’, (e) => { if (e.key === ‘Tab’) { // Handle focus } }); Screen Reader Testing ✅ NVDA (Windows) ✅ VoiceOver (Mac) ✅ Axe DevTools … Read more