Ext JS 8.0 Features and Updates for Faster, Better, Scalable Apps

I used to spend more time configuring routes than actually building features. Today, that completely changed. Day 3 of my 30-day Next.js deep dive. Today I explored file-based routing—and honestly, it made me rethink how simple routing can be when the framework handles the heavy lifting. No extra setup. No complex configs. Just structure. Key Learnings - Routes are created automatically based on the folder/file structure - No need for external routing libraries - Nested folders = nested routes (clean and intuitive) - Dynamic routes can be handled easily with [param] naming - Encourages better project organization from the start At first, I underestimated it. I thought: “Okay, routing from files… that’s basic.” But when I started organizing routes for a real project, I realized: 👉 Good structure = less confusion later 👉 Less configuration = more focus on actual development It’s not just about simplicity—it’s about maintainability. I’m starting to value tools that reduce unnecessary complexity and improve scalability. Because in real-world remote teams, clean structure and readability matter just as much as functionality. Do you prefer file-based routing like in Next.js, or more control with custom routing setups? #NextJS #WebDevelopment #ReactJS #FullStackDeveloper #JavaScript #CleanCode #LearningInPublic #RemoteDeveloper

I took a longer break from building things than I intended. Life got busy, motivation dipped, and somehow weeks turned into months away from writing a single line of code. But I'm back, and instead of waiting for the perfect moment, I just started. Here's what I built to get back into it: ~Form Validation App A React signup form with real-time validation, a password strength indicator, and conditional error handling -- built from scratch with a focus on clean architecture and UI quality. 🔗: https://lnkd.in/dkdYZHWH What it does: -Validates name, email, and password on submit -Shows inline error messages per field -Rates password strength live (Weak → Strong) as you type -Conditionally styles inputs based on validation state -Renders a success screen on valid submission Tech used: -React (Vite) -- component-based architecture -Tailwind CSS -- utility-first styling with custom design tokens -JavaScript -- pure validation logic separated from UI What I learned: -How controlled inputs work and why they matter in form handling -Separating concerns -- keeping validation logic in its own utility file -Applying conditional styling cleanly without bloating component code -Thinking in reusable components (InputField, PasswordStrength) rather than writing everything in one place Small project. Real fundamentals. This is Project 3 of my structured React learning path -- more coming. #React #JavaScript #TailwindCSS #WebDevelopment #Frontend #100DaysOfCode #Fullstack #fullstack #MERN #learner #Developer

My form was getting harder to manage… as it grew 😅 Yes, seriously. At first, everything was simple. But as inputs increased, handling state became messy. 💡 I was doing this: const [value, setValue] = useState(""); <input value={value} onChange={(e) => setValue(e.target.value)} /> 👉 Controlled input ⚠️ Problem: • Too many states • More re-renders • Hard to manage large forms 💡 Then I explored another approach: 👉 Uncontrolled components 🧠 Example: const inputRef = useRef(); 👉 Access value when needed 💡 Difference: Controlled → React manages state Uncontrolled → DOM manages state ✅ Result: • Better flexibility • Cleaner logic (for some cases) • Easier form handling 🔥 What I learned: Not every input needs to be controlled. #ReactJS #FrontendDeveloper #JavaScript #CodingTips #WebDevelopment

🚀 Day 5/30 — Async/Await changed JavaScript forever Before async/await, we wrote: 𝘭𝘰𝘨𝘪𝘯𝘜𝘴𝘦𝘳() .𝘵𝘩𝘦𝘯(𝘨𝘦𝘵𝘖𝘳𝘥𝘦𝘳𝘴) .𝘵𝘩𝘦𝘯(𝘱𝘳𝘰𝘤𝘦𝘴𝘴𝘗𝘢𝘺𝘮𝘦𝘯𝘵) .𝘤𝘢𝘵𝘤𝘩(𝘩𝘢𝘯𝘥𝘭𝘦𝘌𝘳𝘳𝘰𝘳) Worked well… But async/await made asynchronous code feel natural: 𝘵𝘳𝘺 { 𝘤𝘰𝘯𝘴𝘵 𝘶𝘴𝘦𝘳 = 𝘢𝘸𝘢𝘪𝘵 𝘭𝘰𝘨𝘪𝘯𝘜𝘴𝘦𝘳(); 𝘤𝘰𝘯𝘴𝘵 𝘰𝘳𝘥𝘦𝘳𝘴 = 𝘢𝘸𝘢𝘪𝘵 𝘨𝘦𝘵𝘖𝘳𝘥𝘦𝘳𝘴(𝘶𝘴𝘦𝘳.𝘪𝘥); 𝘢𝘸𝘢𝘪𝘵 𝘱𝘳𝘰𝘤𝘦𝘴𝘴𝘗𝘢𝘺𝘮𝘦𝘯𝘵(𝘰𝘳𝘥𝘦𝘳𝘴); } 𝘤𝘢𝘵𝘤𝘩(𝘦𝘳𝘳){ 𝘤𝘰𝘯𝘴𝘰𝘭𝘦.𝘦𝘳𝘳𝘰𝘳(𝘦𝘳𝘳); } Cleaner. Easier to debug. Easier to maintain. 𝐁𝐮𝐭 𝐡𝐞𝐫𝐞’𝐬 𝐭𝐡𝐞 𝐦𝐢𝐬𝐭𝐚𝐤𝐞 𝐦𝐚𝐧𝐲 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫𝐬 𝐦𝐚𝐤𝐞👇 await getUsers(); await getOrders(); await getProducts(); ❌ Slow (runs sequentially) Better: await Promise.all([ getUsers(), getOrders(), getProducts() ]); ✅ Concurrent + faster 💡 Big lesson: Async/Await improved readability. Promise.all() improves performance. Small code decisions create big scalability differences. What do you prefer in production: Async/Await or .then() chains? #NodeJS #JavaScript #AsyncAwait #BackendDevelopment #SoftwareEngineering

🤔 Why does this code NOT run in the order you expect? You set a timeout of 0ms… But it still runs after the next console.log() 😳 👉 Isn’t 0 supposed to mean immediate? 🚀 One of the most important (and misunderstood) concepts in JavaScript: The Event Loop 🧠 What is the Event Loop? JavaScript is single-threaded 🧵 (It can do only ONE thing at a time) But somehow… it handles: - API calls 🌐 - Timers ⏱️ - User clicks 🖱️ 👉 smoothly, without blocking everything 💡 That’s because of the Event Loop ⚙️ The 4 Core Components : 1️⃣ Call Stack → Where code runs (LIFO) 2️⃣ Web APIs → Browser handles async tasks 3️⃣ Microtask Queue → Promises (high priority) 4️⃣ Macrotask Queue → setTimeout, events 🔄 How it actually works 1. Code runs in the Call Stack 2. Async tasks (like setTimeout) go to Web APIs 3. When done → they move to queues 4. The Event Loop constantly checks: "Is the Call Stack empty?" 5. If the stack is empty, it pushes the first task from the queue into the stack to be run. ⚡ The “0ms Timeout” Paradox Even with 0ms, setTimeout is NOT immediate. 👉 It still goes to the queue 👉 It waits for the stack to clear 🔥 Microtask vs Macrotask (Game Changer) 👉 Microtasks > Macrotasks That means: - Promises run BEFORE setTimeout - Even if timeout is 0ms 😅 💡 Real Dev Insight : If your UI freezes 🧊 👉 It’s NOT always JavaScript or your logic It’s often: - Blocking the Call Stack - Long synchronous code 🚨 When the stack is busy → NOTHING else runs (No clicks, no animations, no updates) 🚀 Final Thought JavaScript isn’t slow… 👉 Blocking it makes it slow Understanding the Event Loop = Better performance + fewer bugs + stronger fundamentals 💪 #JavaScript #FrontendDevelopment #WebDevelopment #EventLoop #AsyncJavaScript #CodingTips #LearnJavaScript #BuildInPublic #100DaysOfCode

🚀 #JavaScript Event Loop If you want to truly understand JavaScript async behavior, you must understand the Event Loop. 👉 What is Event Loop? It’s a mechanism that allows JavaScript to handle asynchronous operations using: • Call Stack • Web APIs • Task Queues (Microtask Queue & Macrotask Queue) 👉 Execution Flow: 1️⃣ Synchronous code runs first (Call Stack) 2️⃣ Then Microtasks execute → Promises, queueMicrotask 3️⃣ Then Macrotasks execute → setTimeout, setInterval ⚡ Rule: Microtasks always run before macrotasks. 💻 Example: console.log('Hi'); Promise.resolve().then(() => { console.log('Promise'); }); setTimeout(() => { console.log('Timeout'); }, 0); console.log('End'); ✅ Output: Hi End Promise Timeout 🧠 Why? Sync code runs first → Hi, End Promise goes to Microtask Queue → runs next setTimeout goes to Macrotask Queue → runs last #javascript #eventloop #promises #asyncjavascript #frontenddeveloper #webdevelopment #coding #100daysofcode #learnjavascript #developerlife #programming #jsdeveloper #tech #softwaredeveloper

After working through individual concepts and small exercises, I tried combining them. Built a few small “practice projects” to apply everything together. One of them was a real-time search filter. It involved: • handling user input (events) • updating the DOM dynamically • filtering data based on input • managing state in a simple way Individually, none of these concepts were new. But putting them together felt different. This marked the moment when it began to resemble more than just isolated features. #javascript #webdevelopment #frontend

"React me unnecessary re-renders ho rahe hain?" 🤔 You might need useMemo or useCallback ⚡ Let’s simplify the difference 👇 🔹 useMemo 👉 Memoizes a value 👉 Prevents expensive recalculations 💻 Example: const memoizedValue = useMemo(() => { return expensiveFunction(data); }, [data]); 🔹 useCallback 👉 Memoizes a function 👉 Prevents function recreation on every render 💻 Example: const memoizedFn = useCallback(() => { doSomething(); }, []); 🔹 Key Difference 👉 useMemo → returns a value 👉 useCallback → returns a function 🔹 When to use? - useMemo → heavy calculations 🧠 - useCallback → passing functions to child components 👇 🚀 Pro Tip: Don’t overuse them! Use only when performance issues actually exist. 💬 Have you used these hooks in real projects? #reactjs #javascript #webdevelopment #mern #developers

From fragmentation to scale — JavaScript monorepos are reshaping how frontend teams build and grow. Our latest blog explores how monorepos help teams reduce complexity, improve collaboration, and streamline CI/CD pipelines — all while keeping performance under control. 👉 Read the full article here: https://bit.ly/4strT3R. #growin #knowtogrow #ITteam #techblog #javascript #monorepo

DevCommands Hub – Save Time, Code Faster Developers often waste a lot of time repeatedly searching for CLI commands while working across different tools and platforms. To solve this, I built DevCommands — a searchable, categorized reference tool for commonly used developer commands. 💡 Key Features: 🔍 Search & filter commands instantly 📋 One-click copy to clipboard 🗂️ Clean category-based navigation ⚡ What makes it powerful? At the top of every guide, you can define your variables once — and all commands automatically adapt to your project. No more manually editing commands again and again — you get personalized commands tailored to your workflow. 🌐 Try it here: https://lnkd.in/gfbv5G7y This project focuses on improving developer productivity by reducing repetitive effort and context switching. Would love your feedback and suggestions! 🙌 #WebDevelopment #DeveloperTools #ReactJS #Productivity #OpenSource #JavaScript #vibecoding #chaicode #chaiaurcode