Array Destructuring Simplifies Code Handling

We often scare ourselves thinking writing custom code or polyfills is too complex. So we avoid it. Instead of overthinking the complexity, we can create a simple blueprint and move one step at a time. That’s exactly what I tried today. I picked something that usually feels intimidating . Built Redux from scratch . 🛠️ Not the real one - a tiny version with just three functions: getState, dispatch, and subscribe. That's it. That's Redux at its core. Just understanding: - how state is stored - how actions are dispatched - how listeners react to changes Sometimes, the best way to understand a tool is to rebuild it yourself. 👉 Checkout the repo for full code. https://lnkd.in/g_gHB_5S #javascript #redux #webdevelopment #frontend #learninginpublic #codingjourney

🚀 Debounce vs Throttle — every JS dev should know the difference Both control how often a function runs, but they solve different problems. ⚡ DEBOUNCE — "Wait, then fire" Delays execution until a burst of events stops. Resets the timer on every new event. function debounce(fn, delay) { let timer; return function(...args) { clearTimeout(timer); timer = setTimeout(() => fn.apply(this, args), delay); }; } ✅ Use for: search inputs, form validation, auto-save 🔁 THROTTLE — "Fire, then wait" Executes at a fixed interval — no matter how many events fire. function throttle(fn, limit) { let inThrottle = false; return function(...args) { if (!inThrottle) { fn.apply(this, args); inThrottle = true; setTimeout(() => inThrottle = false, limit); } }; } ✅ Use for: scroll events, mouse tracking, API rate-limiting 🧠 Key mental model: → Debounce = respond once it's quiet → Throttle = pace yourself, one call per window If missing intermediate updates is fine → debounce If consistent periodic updates matter → throttle Drop a 🔥 if this was helpful! #JavaScript #WebDev #Frontend #JSConcepts #Programming #100DaysOfCode #React #Angular

⚠️ JavaScript Mistakes Every Developer Should Know Even experienced developers make these mistakes… avoid them 👇 ❌ Using == instead of === 👉 Can cause unexpected results due to type conversion ❌ Forgetting return in functions 👉 Function runs but returns undefined ❌ Not handling asynchronous code 👉 Code executes before data is ready ❌ Mutating objects/arrays directly 👉 Can lead to unexpected bugs ❌ Ignoring this behavior 👉 this depends on how a function is called ❌ Using var instead of let/const 👉 Leads to scope-related issues 🔥 Key Takeaway: Small mistakes in JavaScript can lead to big bugs. Write clean and predictable code. 💬 Which mistake have you made before? #javascript #webdevelopment #frontend #coding #100DaysOfCode

⚡ Why doesn’t setTimeout(fn, 0) run immediately? Most developers think JavaScript executes things in order… but that’s not always true. Let’s break it Example: console.log("Start"); setTimeout(() => console.log("Timeout"), 0); Promise.resolve().then(() => console.log("Promise")); console.log("End"); Output: Start End Promise Timeout What’s happening? JavaScript uses something called the Event Loop to handle async operations. Here’s the flow: Code runs in the Call Stack Async tasks go to Web APIs Completed tasks move to queues Event Loop pushes them back when stack is empty The twist: Microtasks (HIGH PRIORITY) • Promise.then() • queueMicrotask() Macrotasks (LOWER PRIORITY) • setTimeout() • setInterval() That’s why: Promise executes BEFORE setTimeout — even with 0ms delay Real takeaway: Understanding this can help you debug tricky async issues, optimize performance, and write better code. Have you ever faced a bug because of async behavior? #JavaScript #WebDevelopment #Frontend #Programming #Coding #Developers #100DaysOfCode

The Spread (...) vs Rest (...) operators may look the same, but their purpose is completely different: 👉 Spread → Expands values 👉 Rest → Collects values This simple concept is widely used in: ✔️ React state updates ✔️ Function arguments ✔️ Clean and modern JS code I’ve broken it down into a visual sketchnote to make it easier to remember 🎯 Save it for later & share with someone learning JavaScript! #JavaScript #WebDevelopment #Frontend #Coding #LearnToCode #100DaysOfCode #Developers #chaicode #chaiaurcode Chai Aur Code #spreadoperators #restoperators

🚨 JavaScript Just Had Its “Rust Moment”… And Most Developers Aren’t Ready Something big just happened. And no — it’s not just another version bump. 👉 Vite 8 just replaced its entire bundling engine with Rust. Yes… completely replacing both esbuild AND Rollup. Let that sink in. For years, we’ve accepted slow builds, bloated tooling, and fragmented ecosystems as “just part of JavaScript.” But now? ⚡ 10–30x faster builds ⚡ 3x faster dev server startup ⚡ 40% faster reloads ⚡ Massive reduction in network requests This isn’t an upgrade. This is a paradigm shift. Here’s the uncomfortable truth: 👉 The JavaScript ecosystem is quietly admitting something… Native tooling is eating interpreted tooling alive. Rust (Rolldown, Oxc) Go (TypeScript compiler future) Zig (Bun outperforming others) Meanwhile… We’re still writing apps in layers of abstraction on top of Electron 👀 💥 The real question nobody wants to ask: If native tools are 10x faster… Why are we still building entire products in slower runtimes outside the browser? This isn’t about Vite. This is about where software is heading. 👉 Performance is no longer optional 👉 Developer experience is becoming native-first 👉 The “JavaScript everywhere” era is being challenged And the winners? The developers who adapt early. 💬 What do you think? Are we witnessing the beginning of the post-JavaScript tooling era… or just another hype cycle? 👇 Let’s discuss. #Vite #JavaScript #Rust #WebDevelopment #Frontend #Backend #Programming #SoftwareEngineering #DevTools #Performance #TypeScript #OpenSource #TechTrends #Coding #Developers #BuildInPublic #FutureOfWork #Innovation #WebPerf #Engineering

https://lnkd.in/dhxqAUpC — Most devs think math is easy until they hit floating-point errors. As a Frontend Engineer building with TypeScript and Next.js 15, I thought this would be a simple "plug and play" math tool. 💻 I was wrong. Calculating the tangent of 90 degrees or handling IEEE 754 precision issues is where the real engineering starts. 📐 I remember a 2 AM session where my code insisted that sin(π) was not quite zero, breaking the entire UI layout. ☕ I used Cursor to iterate through the edge-case logic and Vitest to ensure every angle returned the exact precision users expect. 🛠️ Styling the unit circle and results was a breeze with Tailwind CSS, keeping the bundle size incredibly light. 🚀 Even though my local dev setup runs on Vite for speed, the final deployment to Vercel ensures the production performance is rock solid. Building this taught me that the "simplest" tools often hide the most complex logic under the hood. ✅ It’s one more step toward making calculator-all.com the ultimate resource for everyone. 🌟 What’s the most "simple" feature you’ve built that turned out to be a total rabbit hole? #TrigonometryCalculator #FrontendEngineer #TypeScript #ReactJS #NextJS #WebDevelopment #Coding #SoftwareEngineering #TailwindCSS #Vercel #UnitTesting #JavaScript #Math #BuildInPublic #CalculatorAll

Understanding Event Delegation in JavaScript ⚡ Instead of attaching multiple event listeners to individual elements, we can attach a single listener to a parent element using event bubbling. ✅ Better performance ✅ Cleaner and scalable code ✅ Easier to manage Small concept, big impact in real-world applications. 💡 #JavaScript #WebDevelopment #Frontend #Coding #Developers

JavaScript Array Methods Every Developer Should Master JavaScript arrays are powerful, if you actually know the methods behind them. From map, filter, and reduce to find, some, and flat, these array methods show up everywhere: Frontend interviews Production code Performance discussions This guide breaks down the most important JavaScript array methods with real-world examples, common mistakes, and when not to use them. If you write JavaScript for a living, these aren’t optional. #JavaScript #JavaScriptArray #JSArrayMethods #frontend #WebDevelopment #Programming #Coding

Most developers use new… but few truly understand what happens behind the scenes. When you write: const user = new User("Diwya"); 👉 JavaScript actually performs multiple steps: ✔️ Creates a brand new empty object ✔️ Links it to the constructor’s prototype ✔️ Executes the constructor function ✔️ Returns the newly created instance This is how objects and prototypes connect in JavaScript. 💡 The new keyword is the foundation of: Constructor functions Prototypal inheritance Object-oriented patterns in JS ⚠️ Missing new can lead to unexpected bugs — always be careful! Read Full Guide here:https://lnkd.in/eZAZyFHJ #JavaScript #WebDevelopment #Frontend #Programming #JSConcepts #Coding #Developers #100DaysOfCode #chaicode Chai Aur Code