JavaScript Array Comparison Trick

🚀 Day 4 of #100DaysOfCode In the past few days, I learned: ✔ React components and props ✔ Events and useState ✔ Handling user input Today I built a simple input feature where users can enter data and see it on screen. Step by step improving my skills 💻 #React #JavaScript #WebDevelopment #Coding

Async JavaScript used to feel messy… First callbacks → then promises → still confusing 😅 But then came async/await — and suddenly everything started making sense. 1. Cleaner code 2. Better readability 3. Easier error handling In this blog, I’ve broken it down in a simple and beginner-friendly way with examples and visuals. If async still confuses you, this might help https://lnkd.in/gXYD7Qbg Would love your feedback 🙌 #javascript #webdevelopment #frontend #programming #100DaysOfCode

JavaScript can surprise you! What will this return? console.log([] == ![]) Most people guess - false But the answer is - true Why? Because JavaScript silently converts types behind the scenes. Lesson: Always understand type coercion — or use === to avoid surprises. #JavaScript #Coding #WebDevelopment #LearnToCode

JavaScript quirk that still confuses developers: typeof null === "object" This isn’t a feature. It’s a legacy bug. Understanding the difference between: null (intentional absence) undefined (not assigned) …prevents subtle bugs in production. #javascript #webdevelopment #coding

How does an EventEmitter actually work? I broke it down by building a functional mini-nodemon CLI from first principles. If you're into Node.js internals, this one is for you. Read more: https://lnkd.in/diw6tqxh #SoftwareEngineering #NodeJS #JavaScript #TypeScript #WebDev #SystemDesign #Coding #BuildInPublic

Day 1/30 Write a function createCounter. It should accept an initial integer init. It should return an object with three functions. The three functions are: increment() increases the current value by 1 and then returns it. decrement() reduces the current value by 1 and then returns it. reset() sets the current value to init and then returns it. #30DaysOfCode #JavaScript #LeetCode #WebDevelopment #ProgrammingChallenge #CodingLife

3 Must-Know JavaScript Concepts for Every Developer: • Closures • Promises & Async/Await • Event Loop If you understand these well, your coding level improves significantly. Which one do you find hardest? #JavaScript #FrontendDevelopment #CodingTips

We all use try...catch in JavaScript. But do we really understand it? 👀 I recently explored some surprising behaviors: finally can override your return 🤯 1. try-catch doesn’t handle async errors ❌ 2. catch is actually optional 😳 These small nuances can save you from production bugs. Wrote a simple and practical breakdown 👇 https://lnkd.in/g7NQJzcT Would love your feedback 🙌 #javascript #webdevelopment #frontend #coding #learninpublic

🔄 JavaScript Async Evolution Callbacks → Promises → Async/Await Here's what changed and why it matters: Callbacks — the OG way. Works, but nests into chaos fast. "Callback Hell" is real. Promises — cleaner chaining with .then() and .catch(). Big improvement, still a bit verbose. Async/Await — reads like normal code. try/catch for errors. Clean, simple, everyone loves it. ✅ Remember: Async/Await is just Promises under the hood. Learn both. Still working in a Callbacks codebase? Drop a comment 👇 #JavaScript #WebDev #AsyncJS #Programming #100DaysOfCode

If you're only using Arrays and Objects in JavaScript, you're limiting yourself. Map and Set exist for a reason — and they solve problems cleaner. → Need unique values? Set does it instantly → Need proper key-value storage? Map beats Object Less workaround. More clarity. Wrote a quick breakdown with examples. Read here: 🔗 https://lnkd.in/drqhd7Vg #JavaScript #WebDevelopment #Coding