I was repeating the same state logic in 3 different components. And I didn't even notice it until the fourth one. While building my AI-based project, I kept writing the same useState and useEffect patterns across components. It worked — but something felt off. The code was getting harder to read and even harder to maintain. That's when I looked into custom hooks. I went through the React docs, understood what they are, why they exist, and when to actually use them. Then I created a separate hook file, moved the repeated logic into it, and started reusing it wherever I needed. The difference was immediate: → No repeated logic → Cleaner, more readable components → Clear separation of concerns → Much easier to scale and maintain Custom hooks don't just reduce repetition — they help you think about your code in a better way. Each component does its job, and the hook does its own. That's it. The best part? I'm learning something new every single day while building this project — new bugs, weird errors, small optimizations, and concepts I never paid attention to before. That's the thing about building real projects. No tutorial teaches you what a real bug does. Keep building. Keep breaking things. That's where the actual learning happens. What's one thing you've learned recently by building something real? Drop it in the comments 👇 #ReactJS #CustomHooks #FrontendDevelopment #JavaScript #WebDevelopment #LearningByDoing #ReactDeveloper #CleanCode #FrontendDeveloper #BuildInPublic #100DaysOfCode #CodingJourney #OpenToWork #TechLearning

JavaScript continues to evolve at an incredible pace — and that’s exactly what makes it so exciting to work with. From modern frameworks and libraries to powerful native browser APIs, the ecosystem keeps expanding, giving developers more tools than ever to build fast, scalable, and user-friendly applications. Recently, I’ve been focusing on writing cleaner and more maintainable code, improving performance, and diving deeper into modern ES features. It’s fascinating how small improvements — better structure, clearer logic, and thoughtful optimizations — can significantly impact the overall quality of a project. At the same time, staying up to date is a challenge in itself. New tools, patterns, and best practices are constantly emerging, and continuous learning is part of the journey. What are you currently exploring or improving in JavaScript? #JavaScript #WebDevelopment #Frontend #Programming #Coding #SoftwareDevelopment #Tech #Developer #CleanCode #Performance #Learning #100DaysOfCode

#ProfessionalDevelopment   #FrontendBasics  Question:   How can you avoid problems related to hoisting?  Answer:  In JavaScript, hoisting refers to the behavior where variable and function declarations are processed during the creation phase of execution before the code runs. While it may appear that declarations are moved to the top of their scope, what actually happens is that memory is allocated for them ahead of execution. The behavior of hoisting depends on how variables and functions are declared, particularly with `var`, `let`, `const`, and function declarations. To avoid issues related to hoisting, developers should follow a few best practices. One common practice is to avoid using the `var` keyword. Variables declared with `var` are hoisted and initialized as `undefined`, which can lead to unintended behavior if accessed before assignment. Instead, using `let` and `const` provides block scoping and helps prevent accidental access before initialization. Another practice is to declare variables at the top of their scope. This makes the flow of data more predictable and ensures that variables are initialized before they are used. Developers should also be mindful of how functions are declared. Function declarations are fully hoisted and can be called before they appear in the code, while function expressions and arrow functions follow variable hoisting rules and are not usable before their definition. Being consistent in how functions are defined helps avoid unexpected runtime errors. Finally, enabling strict mode can help catch common issues related to hoisting by enforcing stricter parsing and error handling. This leads to more predictable and maintainable code. --- *Question answers come from research, rewrites, and refinement.* Reference:   https://lnkd.in/eYf-cKn8  Additional research:   MDN Web Docs, Wikipedia, general web research  --- Happy coding, y’all! 👨🏿💻  #javascript #frontenddevelopment #webdevelopment #softwareengineering #coding #programming #devcommunity #learninpublic #careergrowth #techcareers #reactjs #nodejs #developers #engineering #frontend

The real challenge in software isn't just writing code, it's articulating what problem we're solving and then translating that into resilient how. Martin Fowler, Rebecca Parsons, and Unmesh Joshi's conversation on LLMs and the 'what/how' loop perfectly highlights this crucial balance. They delve into how we build systems that truly survive change, by mastering the art of abstraction and managing our cognitive load. For businesses, this isn't just academic; it's about future-proofing your investment. My experience across PHP/Laravel backends and complex React/Flutter frontends consistently shows that the clarity of the 'what' directly impacts the maintainability and adaptability of the 'how'. LLMs, as they suggest, offer a fascinating new tool not just for generating code, but for exploring design spaces, refining our understanding of requirements, and ultimately shaping more robust, understandable abstractions. It's about augmenting our ability to think through complexity, reducing the friction in that critical feedback loop from idea to implementation. Whether it's designing a scalable API in Laravel or an intuitive user experience in React Native, the iterative dance between defining the problem and crafting its solution is constant. LLMs are changing how we operationalize that TDD-like exploration, making it more fluid and less formal. I've been experimenting with these tools to clarify domain models and explore architectural options before a single line of production code is written. How are you leveraging LLMs to improve the 'what' and 'how' loop in your software development process? Are you seeing them impact your system's resilience and ease of change? #SoftwareDevelopment #LLMs #Abstractions #TechConsulting #BangladeshTech

Everyone says frontend is hard. And honestly? It is. Making things look good, feel smooth, work on every screen size — that takes real skill. But the more I learn about backend… the more I realize it's a completely different level of engineering. Backend is where things get serious: Scalability — handling thousands or millions of requests Performance — where milliseconds can literally cost money Security — not optional, ever Data integrity — one mistake can corrupt an entire system Concurrency — race conditions, deadlocks, consistency issues. Architecture — decisions made today can break the business tomorrow Frontend breaks? You fix a screen. Backend breaks? The entire business stops. As a frontend developer, this perspective humbles me. It reminds me that what I'm learning now is just the beginning. The deeper I go into this field, the more respect I have for the full stack of engineering that powers every product we use. My goal isn't just to build pretty UIs — it's to eventually understand the full picture. What do you think — frontend or backend, which one challenged you the most? #webdevelopment #frontenddeveloper #backend #softwareengineering #javascript #reactjs #devjourney #100daysofcode #WebDevelopment #AI #SoftwareDevelopment #FullStackDevelopet #FrontendDeveloper #ReactJS #JavaScript #TechCareer #FutureOfWork #Developers #Programming #LearnToCode

#ProfessionalDevelopment   #FrontendBasics  Question:  Explain the event phases in a browser  Answer:  In software development, an event is an action or occurrence that happens in the system, such as a user interaction or a browser-triggered process. In the browser, events allow applications to respond dynamically to actions like clicks, key presses, or form submissions. These interactions occur through the DOM, where elements emit events that developers listen for using event listeners. When an event occurs, the browser creates an event object and passes it through a defined lifecycle, allowing different parts of the application to respond. The lifecycle of an event consists of three distinct phases: capturing, target, and bubbling. The first phase is the capturing phase (also called trickling), where the event starts at the root of the DOM and travels down through ancestor elements toward the target element. The second phase is the target phase, where the event reaches the element that triggered it and executes any event listeners attached directly to that element. The third phase is the bubbling phase, where the event travels back up from the target element to the root of the DOM, triggering event listeners on ancestor elements along the way. Event listeners can be attached in different ways. When using HTML attributes like `onclick` or assigning directly to properties like `element.onclick`, only one handler can be attached at a time, and assigning a new one will overwrite the previous handler. In contrast, using `addEventListener` allows multiple listeners to be attached to the same element for the same event, and they will all execute in the order they were added. Understanding event phases and how listeners are attached helps developers build efficient and predictable user interactions, especially when using patterns like event delegation. --- *Question answers come from research, rewrites, and refinement.* Reference:   https://lnkd.in/eYf-cKn8  Additional research:   MDN Web Docs, Wikipedia, general web research  Happy coding, Yall! 👨🏿💻  #javascript #frontenddevelopment #webdevelopment #softwareengineering #coding #programming #devcommunity #learninpublic #careergrowth #techcareers #reactjs #nodejs #developers #engineering #frontend

🚀 The Biggest Learning Mistake Developers Make (And How to Fix It) Many developers keep switching tools every few months: ⚛️ React today ▲ Next.js tomorrow Another framework next month… But there’s a hidden problem 👇 👉 No depth. Only surface-level knowledge. ⚠️ The Real Issue Learning new tools feels productive. But without strong fundamentals, it becomes: • Shallow understanding • Poor debugging skills • Weak problem-solving ability 🧠 What Strong Developers Actually Focus On Instead of chasing trends, they invest in: ✔ JavaScript fundamentals ✔ How the browser works (rendering, event loop, memory) ✔ Performance optimization ✔ Application architecture & scalability 💡 Reality Check Someone who deeply understands JavaScript and browser behavior will: 👉 Outperform developers who know multiple frameworks superficially Because: • Frameworks are just abstractions • Fundamentals explain why things work 🎯 The Truth About Tech 📌 Tools change every few years 📌 Fundamentals stay relevant for decades 🔥 Final Takeaway Stop chasing every new framework. Start building strong foundations. That’s what turns a developer into an engineer. 💬 What are you focusing on right now — tools or fundamentals? #JavaScript #FrontendDevelopment #WebDevelopment #SoftwareEngineering #Programming #DeveloperMindset #CareerGrowth #TechLearning 👉 Follow Rahul R Jain for more real interview insights, React fundamentals, and practical frontend engineering content.

#ProfessionalDevelopment   #FrontendBasics  Question:   How can you create custom error objects?  Answer:  In software development, an error refers to an unexpected condition that occurs during program execution and disrupts normal application behavior. In JavaScript, errors are typically handled using try...catch blocks, which allow developers to gracefully manage failures without stopping the entire application. JavaScript provides a built-in `Error` object that represents runtime errors. It can be used directly or extended to create more specific error types tailored to an application’s needs. There are also several built-in error types, such as `TypeError`, `RangeError`, and `SyntaxError`, which represent different categories of runtime issues. Custom error objects are created by extending the base `Error` class and adding additional properties or behavior. This allows developers to define more meaningful error messages, include custom data, and better organize error handling logic. By creating custom error types, developers can improve debugging, provide clearer feedback, and handle different failure scenarios more precisely within an application. --- *Question answers come from research, rewrites, and refinement.* Reference:   https://lnkd.in/eYf-cKn8  Additional research:   MDN Web Docs, Wikipedia, general web research  --- Happy coding, y’all! 👨🏿💻  #javascript #frontenddevelopment #webdevelopment #softwareengineering #coding #programming #devcommunity #learninpublic #careergrowth #techcareers #reactjs #nodejs #developers #engineering #frontend #errors #debugging #cleancode

𝐓𝐡𝐞 "𝐏𝐫𝐨𝐣𝐞𝐜𝐭 𝐁𝐮𝐫𝐧𝐨𝐮𝐭" 𝐢𝐬 𝐑𝐞𝐚𝐥 (and how I'm beating it) 🧠 We’ve all been there: You finish a big project, your GitHub green squares are glowing, and then... silence. The "Developer’s Block" hits. You want to start the next big thing, but you’re not sure if you should dive into a new library, refactor old code, or just take a break. What I’m learning is that "not coding" is sometimes the best way to become a better coder. Right now, I’m in a "Learning & Research" phase. Instead of rushing to build another generic dashboard, I’m spending my time: Deep-diving into Architecture: Understanding how to structure MERN apps for scale, not just functionality. Refining the Basics: Re-visiting core JavaScript concepts that I might have "skipped" while rushing to learn React. Observing Trends: Looking at how Edge computing and AI are changing the frontend landscape. The takeaway? Don't measure your worth as a developer solely by your "Lines of Code" (LOC). Measure it by your curiosity. Consistency isn't just about pushing code every day; it's about staying engaged with the industry even when the IDE is closed. 💻 To my fellow devs: How do you handle the gap between projects? Do you jump straight into something new, or do you take time to "sharpen the saw"? Let's hear your strategies! 👇 #WebDev #MERNStack #SoftwareEngineering #CareerGrowth #JavaScript #LearningJourney

🚀 API Optimization + Code Reusability = Scalable Applications Most developers focus only on writing code… But great developers focus on writing efficient & reusable code. 🔹 Optimized APIs → Faster response time ⚡ 🔹 Reusable code → Less duplication & easy maintenance ♻️ 🔹 Clean architecture → Better scalability 📈 In real-world projects, performance matters. Every millisecond counts. Every line of code matters. Start building systems that are not just working… but fast, scalable, and maintainable. 💡 Small optimizations today = Big impact tomorrow #KeepLearning #BuildInPublic#WebDevelopment #MERNStack #FullStackDeveloper #SoftwareEngineering #APIDevelopment #BackendDevelopment #FrontendDevelopment #CodeOptimization #CleanCode #CodeReusability #ScalableSystems #PerformanceOptimization #ReactJS #NodeJS #JavaScript #DeveloperLife #TechGrowth #100DaysOfCode #LearnInPublic