Understanding JavaScript Prototypes and Inheritance

90% of developers get this wrong. Let’s see if you’re in the 10%. What does this code print? let a = 10; { console.log(a); let a = 20; } Comment ONLY ONE answer: A) 10 B) 20 C) ReferenceError D) undefined No googling. No running it. Just reasoning. Understanding scope and the Temporal Dead Zone is what separates memorization from mastery. JavaScript Mastery w3schools.com #JavaScript #CodingInterview #WebDevelopment #SoftwareEngineering #Frontend

JavaScript Closures: Your Code's Secret Memory Keeper! 🤫 Ever wonder how functions remember things even after they're done running? It's not magic, it's CLOSURES! ✨ Level up your JavaScript game with Closures! 🚀 This powerful concept lets functions "remember" their environment, creating private variables and stateful functions. Perfect for building things like counters, private data, and more! Get ready to impress your tech crush. 😉 #JavaScript #Closures #WebDev #CodingTips #FrontendDeveloper #TechInfluencer #JS ⚙️ Built using my automated code-to-image server and n8n. If you spot anything improvable, I’d love your feedback.

🌱 Going back to basics "Uncontrolled Components" Yesterday I wrote about "Controlled Components". Today, let’s talk about the other side "Uncontrolled Components". Not everything needs to be controlled by state. Sometimes, the input can manage its own value, and we just read it when needed. Using "ref", we can directly access the input value without syncing every change with React state. A "ref" gives us direct access to the DOM element. Instead of storing every keystroke in state, we simply read the value when we actually need it like "on submit". Less wiring. Less state management. Sometimes less headache Uncontrolled components are useful when: - You don’t need instant validation - You only need the value on submit - The form logic is simple "Controlled components" give clarity. "Uncontrolled components" give simplicity. Going back to basics is also about knowing when to control and when to let go. Both have their place. #ReactJS #Frontend #JavaScript #GoingBackToBasics #LearningInPublic

JavaScript question 🧠 What will this log? Think before running it. const values = [ 0, -0, +0 ]; const set = new Set( values ); console.log( set.size ); A) 1 B) 2 C) 3 Are 0, -0, and +0 treated as different values? Or does Set see them as the same? #JavaScript #CodingChallenge #Frontend

Why Arrow Functions were introduced in JavaScript 🚀 Cleaner syntax, lexical this, implicit returns, and fewer surprises compared to traditional function declarations. Understanding why something exists makes you a better developer—not just a faster one. 💡 #JavaScript #WebDevelopment #Frontend #ES6 #CodingConcepts

💫 The Secret Sauce of React Performance: The Bundler 📦✨ Bundler is a tool in react that packages your entire application’s code into a single file. By consolidating your files, you significantly reduce the overhead of multiple HTTP requests, making your application feel snappy and professional. Advantages of Using a Bundler: 🚀 Enhanced Performance: By minifying code bundlers keep our file sizes small. 📂 Organized Asset Management: Don't just handle JavaScript. They manage your CSS, images, and fonts, ensuring everything is linked correctly without you having to manually track paths. 🛠️ Modern Feature Support: Want to use the latest ES6+ features or TypeScript Bundlers use "transpilers" (like Babel) to ensure your modern code runs perfectly even on older browsers. #ReactJS #WebDevelopment #FrontendEngineering #JavaScript #CodingTips #Webpack #Vite #ProgrammingLife

Ever wondered how useState remembers values between renders? Closures. Every render creates a new scope. Functions inside that scope capture the variables they need. When you understand closures: • Hooks make sense • Event handlers make sense • Async callbacks make sense • Factory functions make sense Without closures, modern JavaScript feels mysterious. With closures, it feels logical. Frameworks don’t invent magic. They use the language deeply. #JavaScript #ReactJS #Closures #FrontendDeveloper #FrontendDevelopment #WebEngineering #ProgrammingEducation #DeveloperMindset

Debugging Lesson Today Today I fixed a UI issue where my website was stuck on a loading spinner. At first, it looked like the whole page was broken, but the real issue was simple. The spinner element had a show class that was never removed by JavaScript. Here’s how I debugged it: - Checked browser console for errors - Verified all JS libraries were loading correctly - Inspected the DOM - Found that the spinner class wasn’t being removed - Added the missing spinner removal logic Small bug. Big lesson. Debugging is not guessing, it’s systematic thinking. #WebDevelopment #Frontend #Debugging #LearningInPublic

21 Feb 2026 -> Started arrays and learned how to create and access elements. -> Practiced basic array methods like push() and pop(). #javascript #frontend #LearninginPublic #DevJourney

90% of developers get this wrong. Let’s see if you’re in the 10%. What does this code print? let a = 10; { console.log(a); let a = 20; } Comment ONLY ONE answer: A) 10 B) 20 C) ReferenceError D) undefined No googling. No running it. Just reasoning. Understanding scope and the Temporal Dead Zone is what separates memorization from mastery. #JavaScript #CodingInterview #WebDevelopment #SoftwareEngineering #Frontend