React var let const differences explained

DAY 17 OF POSTING REACT CONTENT ⚛️ HOW DOES REACT USE CODE FROM ONE FILE IN ANOTHER? 🤔 In React, each component usually lives in its own file. To use a component somewhere else, JavaScript provides two simple tools: 👉 export — to make something available 👉 import — to use it in another file This keeps code: organized reusable easy to manage React doesn’t work without this. Every component connection starts here. #ReactJS #JavaScript #ReactBasics #FrontendDevelopment #LearnInPublic #WebDevelopment #CodingJourney

DAY 10 OF POSTING REACT CONTENT ⚛️ WHERE DOES REACT KEEP TRACK OF CHANGING VALUES? 🤔 React updates only what changes. But for that, it needs to know what changed. So React stores changing values in a special place. That place is called state. State is just: 👉 a value React keeps 👉 while the page is running 👉 and watches for changes When state changes, React updates the needed part of the screen. That’s it. No magic. No extra meaning. 💬 Does this make the idea of “state” feel simpler now? #ReactJS #ReactBasics #FrontendDevelopment #JavaScript #LearnInPublic #WebDevelopment #CodingJourney

I was literally stuck while trying to understand the Context API in React. I explored many tutorials, but the concept still wasn’t completely clear. Finally, I came across the React playlist by @VinodBahadurThapa on the YouTube channel Thapa Technical, and it completely changed my understanding. The explanation of Context API was simple, practical, and beginner-friendly. Now, it feels smooth and much more logical to implement in real projects. Grateful for such quality content that genuinely helps developers grow. 🙌 If you're struggling with React concepts, I highly recommend checking out the playlist. #ReactJS #ContextAPI #FrontendDevelopment #JavaScript #LearningJourney #WebDevelopment

DAY 16 OF POSTING REACT CONTENT ⚛️ React didn’t start with Hooks. Earlier, React components were written using classes. They worked, but understanding this, lifecycle methods, and structure took time. In 2018, React introduced Hooks. Hooks allowed developers to write components as simple functions, manage state without classes, and avoid this completely. Classes are still supported. But Hooks became the preferred way because they made React easier to read, write, and maintain. React didn’t remove classes — it just found a simpler way forward. #ReactJS #ReactBasics #JavaScript #FrontendDevelopment #LearnInPublic #WebDevelopment #CodingJourney

If anyone is interested in developing their skills in React.js, a quick thought based on my experience that might be helpful. 💬 Here are some tips for developing this skill: 1) Start with learning and practicing JSX , Components and props. 2) Go for hooks and state management then. React is different from Javascript, since it uses virtual dom. #javascript #react #webdevelopment

Today i wanna share with you these free and beginner friendly resources online to learn Next.js 1) Next.js Tutorial – All 12 Concepts You Need to Know by ByteGrad 2) Next.js 16 Full Course (by JavaScript Mastery) 3) Next.js Roadmap by roadmap.sh Stop getting lost in routes, Server Components, and deployment issues. These resources break down Next.js 16 step by step so you truly understand rendering, API routes, dynamic pages, and performance optimization. Whether you are preparing for a full stack project, an upcoming developer interview, or you simply want to master modern React with Next.js, this is a practical roadmap for 2026. Save this post. Share it. Start building production ready applications with Next.js 16. #Nextjs #Nextjs16 #ReactJS #FullStackDevelopment #WebDevelopment #FrontendDevelopment #JavaScript #LearnToCode #CodingResources #DeveloperJourney #SoftwareDevelopment #Programming #TechEducation #DeveloperInterview #BuildInPublic

🚀 30 Days — 30 React Mistakes Beginners Make 📅 Day 4/30 ❌ Mistake: Making Input Controlled Without onChange I wrote this 👇 <input value={name} /> Input stopped typing 😐 💡 Why? When you pass value, React controls the input. But without onChange, it becomes read-only. React says: “If I control it, you must update it.” ✅ Correct Way <input value={name} onChange={(e) => setName(e.target.value)} /> 🎯 Lesson If you use value, always handle onChange. Controlled component = state-driven input. #ReactJS #JavaScript #FrontendDev #WebDevelopment #CodingProblems #ReactHooks #DevTips #ProgrammingLife #TechLearning #UIEngineering

One habit I’m intentionally building while working on my own projects is reviewing my code after a short break. Coming back with fresh eyes makes it easier to notice unnecessary logic, improve naming, and simplify the flow. The code usually works — but readability is where most improvements actually happen. This small habit is already helping me move faster and write cleaner code. #FrontendDeveloper #ReactJS #JavaScript #WebDevelopment

React gives us powerful optimization tools… But many devs use them randomly. Here’s the simple rule: 🟠 useEffect → for side effects (API calls, subscriptions, DOM work) 🔵 useMemo → to memoize computed values 🟢 useCallback → to memoize functions If you use useEffect for calculations… you’re misusing it. If you pass new functions every render… you cause re-renders. The goal is NOT to use all 3 hooks. The goal is to use the right hook for the right job. Which one confused you the most when learning React? 👇 #ReactJS #FrontendDeveloper #WebDevelopment #JavaScript #CodingTips #ReactHooks #MERNStack #SoftwareDevelopment

DAY 20 OF POSTING REACT CONTENT ⚛️ WHAT DOES await REALLY DO? 🤔 await tells JavaScript: 👉 “Wait here until the Promise finishes.” It pauses the function until the result is ready. Example: async function getData() { const data = await fetchData(); console.log(data); } The code waits for fetchData() before moving to the next line. Cleaner than .then() Easier to read Same result #ReactJS #JavaScript #AsyncAwait #Promises #FrontendDevelopment #LearnInPublic #WebDevelopment #CodingJourney