React vs JavaScript push() and spread operator explained

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 5 OF POSTING REACT CONTENT ⚛️ While learning React, one thing becomes very clear: 👉 understanding var, let, and const is not optional. So I made one simple table to memorize the differences easily — no searching, no confusion, all in one place. This helped me understand: why var is avoided when let actually makes sense why const is the default choice in React 💬 Save this if it helps you. Feel free to correct me or add anything I missed in the comments. #ReactJS #JavaScript #FrontendDevelopment #LearnInPublic #WebDevelopment #CodingJourney #SoftwareEngineering

I recently uploaded my first YouTube video 🎥 and it’s on something that confused me a LOT when I was learning JavaScript & React. In this video, I explain: • Assignment vs reassignment vs mutation in JavaScript • How const behaves in each case • Why objects & arrays behave differently • How React’s state setter function actually works behind the scenes These concepts are easy to misuse and can silently break your React apps if you don’t understand them properly. I made this video to explain everything in simple terms with examples, especially for beginners. 👉 Video link in the comments Feedback is very welcome 🚀 #Javascript #ReactJS #WebDevelopment

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

When I started learning React, I made mistakes that slowed me down more than bugs ever did. 𝐌𝐢𝐬𝐭𝐚𝐤𝐞 #𝟏: Writing everything in one component ✔ Fixed by breaking UI into reusable components. 𝐌𝐢𝐬𝐭𝐚𝐤𝐞 #𝟐 Ignoring state structure ✔ Learned to keep state minimal and meaningful. 𝐌𝐢𝐬𝐭𝐚𝐤𝐞 #𝟑: Jumping to advanced tools too early ✔ Focused first on core React concepts like props, hooks, and lifecycle. React became much simpler once I respected the basics. If you’re learning React right now — trust me — basics will take you far. #ReactTips #FrontendDevelopment #JavaScript #WebDev #CodingJourney

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 898 of #900DaysOfCode ✨ JavaScript or TypeScript — What Should You Use in Your Project? Choosing between JavaScript and TypeScript can be confusing, especially when you’re starting a new project or scaling an existing one. In today’s post, I’ve broken down when JavaScript makes sense and when TypeScript is the better choice, explained in a clear, practical, and developer-friendly way. The goal is to help you make a confident decision based on your project needs — not just trends. If you’ve ever been stuck deciding between JS and TS, this post will give you clarity. 👇 What do you prefer in your projects — JavaScript or TypeScript? Let’s discuss in the comments! #Day898 #learningoftheday #900daysofcodingchallenge #FrontendDevelopment #WebDevelopment #JavaScript #React #CodingCommunity #TypeScript

A detailed PDF covering React.js concepts explained through handwritten notes and practical examples. The content walks through React fundamentals and gradually moves into important ecosystem topics, making it useful for structured learning and revision. Topics covered include: • React vs JavaScript • CDN usage and CORS • React.createElement and rendering flow • JSX fundamentals • Props and component structure • Bundlers (Parcel, Webpack, Vite) • npm, package.json, package-lock.json • node_modules and dependency management • Hot Module Reloading (HMR) • Production builds, optimization, tree shaking • Browser compatibility and performance concepts Suitable for beginners, React learners, and interview preparation. #ReactJS #FrontendDevelopment #JavaScript #WebDevelopment #LearningResources #Developers

🚀 React Tip of the Day: Think in Components One of the biggest mindset shifts when learning React is understanding that everything is a component. Instead of building large pages, break your UI into: • Small • Reusable • Testable components Why this matters: Cleaner code Easier debugging Faster collaboration Better performance with memoization & hooks Example mindset: “How do I build this page?” “What components make up this page?” If you’re learning React or teaching it, mastering component thinking is a superpower. What React concept challenged you the most when starting out? #ReactJS #JavaScript #FrontendDevelopment #WebDevelopment #LearningToCode

🚀 Learning React.js? Save This Cheatsheet! React can feel overwhelming sometimes — Hooks, Routing, APIs, Optimization, TypeScript… That’s why this React.js Cheatsheet is a must-have 🔥 📌 What it covers: React basics to advanced concepts Hooks & lifecycle methods API handling & optimization tips Mini project ideas Common mistakes developers make 💡 Whether you’re a beginner or an intermediate developer, this cheatsheet works perfectly as a daily reference. 🔖 Save this post for later 🤝 Share it with your developer friends Learn smart. Build more. 🚀💻 #ReactJS #FrontendDevelopment #WebDevelopment #JavaScript #Coding