Mastering the Browser Console for Faster Debugging

𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝗜𝗺𝗽𝗹𝗶𝗰𝗮𝗍𝗶𝗼𝗻𝘀 𝗢𝗳 𝗝𝗮𝘃𝗮𝗦𝗰𝗿𝗶𝗽𝘁 𝗖𝗹𝗼𝘀𝘂𝗿𝗲𝘀 JavaScript closures can be tricky. They help you write better code, but they can also slow down your app if not used correctly. Here are some key things to know about closures: - They let functions use variables from their parent scope, even when the parent function is done running. - They are useful for hiding private data and methods. - They can cause memory leaks if not managed properly. To use closures effectively: - Avoid creating unnecessary closures. - Use tools like Chrome DevTools to track memory usage and performance. - Consider using WeakMap and WeakSet to manage memory better. You can learn more about JavaScript closures and how to use them effectively in your code. Source: https://lnkd.in/gm2iKHfM

I recently built a lightweight Chrome browser extension that allows developers to test REST APIs directly from the browser without switching tools. The goal was to create a simple and fast way to send HTTP requests while working on web applications. 🔧 Key Features: • Send GET, POST, PUT, PATCH, DELETE requests • Add custom headers easily • JSON request body editor • Pretty / Raw response viewer • Copy API responses to clipboard • Open responses in New Tab or Current Tab This project helped me understand: • Browser Extension architecture (Manifest v3) • Messaging between popup and background scripts • Handling HTTP requests with JavaScript • Building UI with React 📂 Project Repository: https://lnkd.in/gKqeivEY Always open to feedback and suggestions for improvements. #WebDevelopment #ChromeExtension #JavaScript #ReactJS #APIs #DeveloperTools #OpenSource

⚡ 7 VS Code Extensions Every Web Developer Should Install If you use VS Code for web development, the right extensions can save you a lot of time and make your workflow much smoother. Here are 7 extensions I find extremely useful as a developer: 1️⃣ Prettier – Code Formatter Automatically formats your code so it stays clean and consistent. 2️⃣ ES7+ React/Redux Snippets Super helpful for quickly generating React components and snippets. 3️⃣ GitLens Gives powerful Git insights directly inside VS Code. You can see who changed a line of code and when. 4️⃣ Auto Rename Tag When you rename an HTML or JSX tag, the closing tag updates automatically. 5️⃣ Error Lens Shows errors and warnings directly in your code instead of only in the problems panel. 6️⃣ Live Server Instantly launches a local development server with live reload for your web projects. 7️⃣ Path Intellisense Auto-completes file paths when importing files, saving a lot of typing. Small tools like these can make a huge difference in productivity. What VS Code extensions do you use the most? 👇 #WebDevelopment #VSCode #FrontendDevelopment #JavaScript #DeveloperTools #CodingTips

I recently came across an interesting tweet by Shu Ding that perfectly simplified some of the “modern React” concepts we often overcomplicate. It basically broke things down like this: SSR is just like how we used to render views in Express React Server Components feel a lot like server-side templating (think Pug/EJS) Hydration is similar to how jQuery attaches behavior to already-rendered HTML The takeaway for me was simple: These ideas aren’t new, we’ve been doing them for years. React just packages them in a more structured (and sometimes more complex) way. It also explains a lot of common confusion: 1. Why there’s no window in SSR 2. Why you can’t use onClick in server components 3. Why hydration errors happen when server and client don’t match Sometimes stepping back and mapping new concepts to old mental models makes everything click.

🚀 Fetching Data in React – Connecting Your App to APIs In today’s Web Development session at JDCodebase, we learned how React applications fetch data from external sources like APIs. This is a core concept because almost every real-world application needs to retrieve data from servers or databases. Instead of hardcoding data, modern apps dynamically request and display data from APIs, making applications more powerful and interactive. 💡 Covered: • What Fetching Data means in React • Understanding the Fetch API • Using async / await for cleaner asynchronous code • How to handle Loading State for better user experience • How to manage Error State when API requests fail • Best practices for clean and reliable API calls ✨ Why it matters? Fetching data is the backbone of modern applications — from e-commerce products and user dashboards to blogs and weather apps. Handling loading and errors properly ensures your app feels smooth, responsive, and professional. Mastering API calls in React helps you build dynamic, real-world applications instead of static interfaces. ⚛️ 🎥 Watch the full video here: 👉 https://lnkd.in/g5kdutNi #WebDevelopment #ReactJS #JavaScript #FrontendDevelopment #Coding #APIs #ReactLearning #Programming #JDCodebase

𝗕𝗨𝗜𝗟𝗗𝗜𝗡𝗚 𝗖𝗛𝗥𝗢𝗠𝗘 𝗘𝗫𝗧𝗘𝗡𝗦𝗜𝗢𝗡𝗦 𝗜𝗡 𝟮𝟬𝟮𝟲: 𝗔 𝗣𝗥𝗔𝗖𝗧𝗜𝗖𝗔𝗟 𝗚𝗨𝗜𝗗𝗘 Chrome extensions are a great way to create useful tools for developers. With Manifest V3, you can build extensions that are secure, private, and fast. Here are the key changes in Manifest V3: - Service workers instead of background pages - Declarative net requests - Tighter permissions To build an extension, you need a few files: - manifest.json - background.js - content.js - popup.html and popup.js - options.html and options.js - icons Your manifest.json file should include: - permissions - host permissions - background service worker - content scripts - action and options Content scripts run on web pages and can read and modify the DOM. The popup appears when you click the extension icon. Keep it simple and fast. To reduce excessive permissions: - Use activeTab instead of broad host permissions - Request optional permissions at runtime - Only declare what you use You can test your extension by loading it in Chrome. Use the console to see logs and debug your extension. Source: https://lnkd.in/gsxdz--T

VS Code recently added an integrated browser to preview and debug web apps directly inside the editor 🔥 You can now run and debug your frontend without switching to an external browser. → open localhost apps inside VS Code → debug directly in the editor → built-in DevTools (inspect, console, etc.) → set breakpoints like usual → reduced tab switching :) Source 🔗: https://lnkd.in/dnsT9urk #html #ai #javascript #coding #webdevelopment #programming

Modern web applications need to be fast, responsive, and efficient. But many applications still make unnecessary API calls or reload data that could easily be cached in the browser. I recently created a small developer guide on how to efficiently use Local Storage and Session Storage in web applications. The slides cover: • When to use LocalStorage vs SessionStorage • Practical JavaScript examples • API caching strategies to reduce server load • Security best practices developers often overlook • Simple workflow diagrams for better understanding Browser storage is a small feature that can make a big difference in performance and user experience when used correctly. Sharing the slides here for anyone building modern web applications. #WebDevelopment #JavaScript #Frontend #Performance #SoftwareEngineering #Developers #Programming

I used to wonder: if JavaScript can only do one thing at a time, why doesn't the whole website stop whenever I'm waiting for a slow API? Today, I’m documenting the "Magic" behind the scenes: The Event Loop. Think of it as a traffic controller that keeps everything moving. Here is what I learned about how it works: The Call Stack: This is my "To-Do List." It finishes one task before moving to the next. 1) The Waiting Room (Web APIs): When I set a timer or fetch data, JavaScript sends it here so the main list stays free for other work. 2) The Callback Queue: This is where finished tasks wait in line for their turn. 3) The Event Loop: The star of the show. It waits until the Stack is empty, then pushes the next task from the line into the code. The "Senior Secret" I learned today: Never run massive calculations directly on the main thread. It blocks the loop and makes the website feel laggy or "dead." I'm not a master yet, but understanding this makes me much better at fixing bugs. Tomorrow, I'm looking at where we hide all our data: Browser Storage! Did the Event Loop ever confuse you? It definitely took me a few tries to finally "get it"! #CodeWithWajid #JavaScript #EventLoop #WebDevelopment #100DaysOfCode #LearningToCode #BuildingInPublic

I recently built a Gazetteer mobile-first web application as part of my development journey. This project helped me strengthen my skills in: • JavaScript (async/await) • Working with APIs (OpenCage, GNews) • Leaflet for interactive maps • Handling real-world data One thing I learned is that integrating multiple APIs is not just about fetching data; it’s about structuring it in a way that makes sense to the user. This project really improved how I think about building user-focused applications. Demo: https://lnkd.in/gNvW5KGH