Understanding JavaScript Event Loop Fundamentals

🌈 Day 19 — JavaScript 30 Days Challenge Day 19 complete — built a Random Gradient Generator App using Vanilla JavaScript. Instead of generating a single color, this app creates random gradient backgrounds by combining two different colors. With one click, a new gradient appears along with the CSS code that can be copied and used in projects. Features include: • Random gradient generation • Two dynamic color combinations • Displaying the CSS gradient code for easy copy This one is actually pretty useful for designers and frontend developers when experimenting with UI backgrounds. Code pushed to GitHub + Live hosted in ReadMe (GitHub link in Profile Section). Day 19 done. Getting closer to 30. 🚀 #JavaScript #WebDevelopment #FrontendDevelopment #30DaysOfCode #GradientGenerator #BuildInPublic #CodingJourney

⚡ Understanding Throttle in JavaScript – Smooth Performance Matters! Ever faced laggy scroll events or too many function calls firing at once? That’s where throttling comes into play! 🚀 I created this visual to show how a throttle function controls execution frequency — ensuring a function runs at most once within a specified time interval. 🧠 How it works: No matter how many times an event (like scroll) is triggered, the function executes only once every defined delay (e.g., 300ms). This keeps your app smooth and prevents unnecessary UI updates. 💡 Optimization Tip: Instead of new Date().getTime(), prefer Date.now() as it avoids creating a new object and is more efficient, especially in high-frequency events. 🔥 Perfect for: • Scroll events • Resize handlers • Mouse movements 👇 Check out the visual to understand it better. #JavaScript #Throttle #WebDevelopment #PerformanceOptimization #FrontendDevelopment #CleanCode #JSDev #CodingTips #100DaysOfCode #ReactJS #MERNstack

Built a simple To-Do List App using HTML and JavaScript. where users can add and delete tasks dynamically. While building this project, I practiced DOM manipulation, event handling, and dynamically creating elements in JavaScript. Small projects like this help strengthen the basics. 🚀 #javascript #webdevelopment #frontend #coding #learningbydoing

🚀 Just Built a Random Advice Generator using JavaScript & API! I recently built a small project to practice JavaScript API integration. This project fetches random advice using the Advice Slip API and displays it in a simple responsive UI. 🔹 Features • Fetches advice using Fetch API • Uses Async / Await for API handling • Button loading state while fetching data • Random background color change 🎨 • Fully responsive design 📱 🛠 Tech Stack HTML • CSS • JavaScript • Fetch API 📡 API Used https://lnkd.in/dhQVZzs9 🌐 Live Demo 👉 https://lnkd.in/dPePU2n5 💻 GitHub Repository 👉 https://lnkd.in/dJ7nNPCe This project helped me improve my understanding of JavaScript API calls, async programming, and DOM manipulation. I’ll continue building more projects to strengthen my frontend development skills. #javascript #webdevelopment #frontenddevelopment #api #100DaysOfCode #coding

🚀✨ What I learned today in JavaScript 💻 Today I practiced something small but powerful in JavaScript: controlling dropdown menus using "e.stopPropagation()". This helps stop events from bubbling up the DOM when you click inside an element 🔁 — very useful when building dropdowns, menus, and interactive UI components. Example 👇 const plusBtn = document.querySelector(".plus"); const plusMenu = document.querySelector(".plus-menu"); plusBtn.addEventListener("click", (e) => { e.stopPropagation(); plusMenu.classList.toggle("hidden"); }); document.addEventListener("click", () => { plusMenu.classList.add("hidden"); }); Simple concept, but very powerful when building clean UI ⚡ 📚 Learning a little every day and improving step by step. But I have one question… 🤔 Some people say they learned JavaScript in 2 months and mastered it. Please how? 😂😂 Someone should teach me that shortcut. #JavaScript #WebDevelopment #CodingJourney #FrontendDeveloper 🚀

Day 11/21 – Creating Colorful Boxes with JavaScript Today I built a small interactive project using JavaScript. The idea was simple but fun: Whenever the user clicks a button, a new colorful box appears on the screen. Every click generates a new box, and the screen slowly fills with different colors. Concepts I practiced today: • JavaScript DOM manipulation • Click events • Dynamically creating elements using JS • Generating random colors • Updating the UI in real time What I realized today: JavaScript is what truly makes a website interactive. Without JS, a webpage is mostly static. Small experiments like this help me understand how the browser reacts to user actions. Learning and building consistently with #sheryianscodingschool #Day11 #21DaysChallenge #JavaScript #FrontendDevelopment #WebDevelopment #LearningInPublic #BuildInPublic

🌐 What is DOM in React.js? Before understanding React deeply, it’s important to understand the DOM (Document Object Model). The DOM represents a web page as a tree structure, where every HTML element is a node that JavaScript can interact with. 🧠 In simple terms: 👉 DOM = Structure of your web page 👉 It allows you to read, update, style, and handle events ⚙️ How it works: When a browser loads a webpage: 1️⃣ HTML is parsed 2️⃣ Converted into a DOM tree 3️⃣ JavaScript can interact with it 🚀 Why it matters in React? Directly updating the DOM is slow and expensive. That’s why React uses: ✔ Virtual DOM ✔ Efficient updates ✔ Reconciliation to update only the changed parts of the UI 💡 Key Takeaway Understanding DOM is the first step to understanding how React actually works behind the scenes. Still learning. Still building. 🚀 — Anuj Pathak #reactjs #javascript #webdevelopment #frontenddevelopment #softwareengineering #developersoflinkedin #programming #techlearning #coding #learninginpublic

Day 14 of my JavaScript journey 🚀 Built a Quiz Game using HTML, CSS, and JavaScript. Users can answer multiple-choice questions, get instant feedback, and track their score. This project helped me practice: • DOM manipulation • Event handling • Conditional logic • Dynamic score tracking 🔗 Live Demo: https://lnkd.in/gSjTeEFb 💻 GitHub Repo: https://lnkd.in/gAp_RjRK Building more interactive and logic-based projects day by day. 💻 #JavaScript #WebDevelopment #FrontendDeveloper #100DaysOfCode #CodingJourney

JavaScript Event Loop – Quick Example Understanding the Event Loop is important for writing efficient asynchronous JavaScript. Example: console.log("Start") const prom = new Promise((res) => res(true)) setTimeout(() => console.log("setTimeout"), 0) process.nextTick(() => console.log("nextTick")) queueMicrotask(() => console.log("microtask")) console.log(prom) Output order will be: Start Promise { true } nextTick microtask setTimeout Why? Because JavaScript processes tasks in this order: 1. Synchronous code 2. Microtasks (nextTick, Promises, queueMicrotask) 3. Macrotasks (setTimeout, setImmediate) Understanding this helps when debugging async issues in frontend apps. #javascript #webdevelopment #frontend #vuejs #eventloop

Rendering Lists & Understanding Keys in React Today I explored how React efficiently renders lists of data using map() and why keys are important. In many applications, we often need to display multiple items such as users, products, or posts. React allows us to render lists dynamically by iterating over an array of data. React uses JavaScript’s map() function to transform arrays into UI elements. This allows components to display dynamic data easily. What are Keys? Keys are special attributes used by React to uniquely identify elements in a list. They help React: 💥 Track which items changed 💥Identify added or removed elements 💥Update the UI efficiently Understanding Lists and Keys helped me see how React efficiently handles dynamic data in real applications. Learning step by step and strengthening React fundamentals 🚀 #ReactJS #FrontendDevelopment #WebDevelopment #LearningJourney #JavaScript