Master JavaScript Array Methods for Frontend Development

const numbers = [1, 2, 2, 3, 4, 4, 5]; const uniqueNumbers = [...new Set(numbers)]; console.log(uniqueNumbers); // Output: [1, 2, 3, 4, 5] 🔹 Why this works? Set only stores unique values, so duplicates are automatically removed. This trick helps keep your code short, clean, and efficient. As a Frontend Developer with 2 years of experience in React.js, I always enjoy learning and sharing small JavaScript tips that improve code quality. Follow for more JavaScript & React tips 🚀 #JavaScript #FrontendDeveloper #ReactJS #WebDevelopment #CodingTips #DeveloperTips #SoftwareDeveloper #TechLearning #CodingJourney #ImmediateJoiner #OpenToWork #ITJobs #Developers

Today, I had a Frontend Machine Coding Round and Uffff.... 🚀 Task:- 🔹Build a basic Todo App 🔹Add a Like 👍 button & a delete 🗑️ button for each todo. 🔹When clicked, show a list of emoji reactions 🔹Once an emoji is selected: The 👍 button should disappear & Only the selected emoji should be shown. 🔹If the user clicks the selected emoji again: 🔸The reaction should be removed & 🔸The like 👍 button should reappear This tested me:- * Conditional Rendering * Controlled Component State * Immutable State Updates * Array map() manipulation * UI behavior logic 🧑💻 I was able to do most of it just struggled at the last stage of implementation which is toggling Emojis on click. The interviewer was so nice, that she waited for me to debug though the interview time was over. It's been a while since I came across such a smooth interviewer 💖 💡But its fine, I know I've done good enough to crack this round, anyways waiting for the result is inevitable. Follow Muralikrishna Devarakonda for more 💛 And don't forget to comment your thoughts below 👇... #ReactJS #FrontendDevelopment #JavaScript #InterviewPrep #OpenToWork #Hiring #UIDeveloper #Connections

💡 Tech Tip for Frontend Developers In React JS, always use unique keys when rendering lists. Using proper keys helps React identify which items changed, improved performance, and prevents unexpected UI bugs. 🚀 Small best practices make a big difference in clean and scalable applications. 💻 #ReactJS #FrontendDeveloper #JavaScript #WebDevelopment #TechTip #CodingLife #OpenToWork

The Behind the Scenes Post ☕ Real engineering isn't about adding new things. It’s about knowing what to take away. Spent my morning deleting 1,200 lines of redundant code and replacing them with a single, clean Laravel Service and a reusable React hook. The result? ✅ Faster build times. ✅ Easier debugging. ✅ A codebase that actually makes sense. If your Senior developer is only measuring success by how much code they add, you might be building a house of cards. 🃏 I build for stability, not just for the sprint deadline. 🚀 Open to Work. Looking for a team that values quality over quick fixes. Let’s connect! #CleanCode #Refactoring #SoftwareEngineering #Laravel #ReactJS #SeniorDeveloper #OpenToWork

🚀 Built a Real-World React Feature Using Just useRef & useState Most developers learn hooks… But very few understand how to use them to build real UI behavior. So instead of building another basic project, I challenged myself: 👉 “Can I create a production-level dropdown system using only core hooks?” 💡 What I built: A “Click Outside Detector” — the same behavior you see in: • Profile menus • Modals • Notification panels • Dropdowns 🧠 My Approach (No shortcuts): I didn’t jump into code. First, I broke the problem down: • What problem am I solving? → Detect interaction outside a component • What do I need? → Access to DOM (useRef) → Control visibility (useState) • What’s the logic? → If click is inside → ignore → If click is outside → close ⚙️ Key Learnings: • useRef is not just for inputs — it’s for real DOM interaction • Handling global events (document level) is crucial for real apps • Separation of responsibility matters: → Button controls opening → Outside click controls closing • Cleanup is not optional → prevents memory leaks 🔥 What makes this special? This isn’t just a UI component. It’s a behavior system that can be reused across: ✔️ Modals ✔️ Tooltips ✔️ Dropdowns ✔️ Menus 📈 Big Shift in Thinking: Before: → “How do I build this?” Now: → “What behavior am I designing, and why?” I’m currently diving deeper into React and building real-world, production-level patterns. If you’re working on React projects or hiring developers who think beyond tutorials, let’s connect 🤝 Devendra Dhote Sheryians Coding School #React #FrontendDevelopment #JavaScript #WebDevelopment #LearningInPublic #OpenToWork

💥 If you know THESE 10 frontend topics, ANY company will want to hire you. No fluff. No shortcuts. Just what actually matters 👇 1. JavaScript (Closures, Event Loop, Async) 2. HTML & Semantic Structure 3. CSS (Flexbox, Grid, Responsive) 4. React / Frameworks 5. State Management 6. DOM & Browser Working 7. Performance Optimization 8. API Handling 9. Frontend System Design 10. Testing & Debugging 💡 Most developers “know” these… But very few can explain them deeply in interviews. That’s the difference between average and top 1%. 🚀 Master these → Crack any frontend interview. Don't forget to follow Hrithik Garg 🚀 for more. #frontend #javascript #reactjs #webdevelopment #codinginterview #softwareengineer #developers #programming #tech

💡 JavaScript Tip – Difference between var, let, and const Understanding the difference between var, let, and const is very important for writing clean JavaScript code. Here’s a quick explanation: 🔹 var Function scoped Can be re-declared and updated Used in older JavaScript 🔹 let Block scoped Can be updated but not re-declared in the same scope Preferred for variables that change 🔹 const Block scoped Cannot be updated or re-declared Used for values that should remain constant Using let and const helps avoid bugs and makes the code more predictable. As a Frontend Developer with 2 years of experience in React.js, I enjoy sharing small JavaScript tips while continuing to learn every day. Currently looking for Frontend Developer / React.js opportunities and available for immediate joining. #JavaScript #FrontendDeveloper #ReactJS #WebDevelopment #CodingTips #DeveloperTips #SoftwareDeveloper #TechLearning #OpenToWork #ImmediateJoiner #ITJobs #HiringNow

💡 JavaScript Tip – Debouncing vs Throttling While working on frontend performance, I explored two important concepts: Debouncing and Throttling. These techniques help in optimizing performance when dealing with events like scrolling, typing, or resizing. 🔹 Debouncing Delays the function execution until the user stops triggering the event. 👉 Example: Search input (API call after user stops typing) 🔹 Throttling Limits the function execution to run at fixed intervals. 👉 Example: Scroll event (runs every few milliseconds) function debounce(func, delay) { let timer; return function () { clearTimeout(timer); timer = setTimeout(() => func(), delay); }; } Using these techniques helps improve performance and user experience in web applications. As a Frontend Developer with 2 years of experience in React.js, I enjoy learning and sharing useful JavaScript concepts. Currently looking for Frontend Developer / React.js opportunities and available for immediate joining. #JavaScript #FrontendDeveloper #ReactJS #WebDevelopment #CodingTips #PerformanceOptimization #DeveloperTips #SoftwareDeveloper #TechLearning #OpenToWork #ImmediateJoiner #ITJobs #HiringNow

I recently had the opportunity to interview for a full-stack developer position, and one of the things I enjoy about technical interviews is how they push you to think through problems in different ways. One of the coding questions involved a calculator function where multiple functions were nested inside another function. The challenge was to access those functions without adding parameters. My solution was to return them through an options object, something like { add, subtract, multiply }, and then invoke them outside of the main calculator function. Another interesting debugging exercise involved a React useEffect hook. The code initially had no dependency array, and on the next page it created an infinite loop by updating state inside useEffect while also including that state in the dependency array. It was a good reminder of how small details in React can have big effects on application behavior. One thing I appreciated about the conversation was discussing fundamentals like the difference between var and let and how scope impacts how variables behave. Since I rarely use var in modern JavaScript, it was interesting revisiting that concept. The experience also motivated me to continue strengthening my Node.js knowledge, especially around concepts like callback patterns and asynchronous flow. Interviews are a great reminder that there is always something new to learn. Overall, I’m glad I took the opportunity. Every conversation like this helps me grow as a developer. #javascript #webdevelopment #softwareengineering #react #node #opentowork