How to Optimize JavaScript Performance with Debouncing, Memoization, Code Splitting, and Web Workers

🧠 Day 49 | Web Development Challenge Today’s lecture: The Event Loop in JavaScript 🔄 Finally understood how JavaScript manages asynchronous tasks through the Call Stack, Web APIs, and Callback Queue. It’s fascinating how a single-threaded language can handle multiple operations seamlessly! ✨ Key Insight: > The Event Loop is what keeps JavaScript non-blocking — letting your code run smoothly without freezing the UI. #JavaScript #EventLoop #AsyncJS #WebDevelopment #Frontend #LearningJourney #CodeNewbie

localStorage - One of the simplest yet most powerful browser features every front-end developer should master A Practical Guide to Using localStorage in JavaScript (With Mini Project) Richa Parekh ・ Nov 12 #javascript #web #learning #frontend https://lnkd.in/deeT7hpA

🚀 Day 48 | Web Development Challenge Today’s topic: Performance Optimization – Reflow & Repaint in JavaScript ⚡ Explored how browsers handle DOM changes and how each manipulation triggers visual updates. Learned how to reduce performance overhead using techniques like batching DOM updates and DocumentFragment to prevent multiple reflows. ✨ Key Insight: > Performance isn’t about speed — it’s about efficiency. Every repaint counts! #JavaScript #WebPerformance #DOM #FrontendDevelopment #LearningJourney #CodeWithMe #MERNStack

|| Day - 37 || +JavaScript : Cohort 2.0 ✨ Key Learnings of the Day: 1. Learned different types of JavaScript functions like nested, anonymous, higher-order, IIFE, callback, and first-class functions. 2. Understood concepts like hoisting ,parameters ,objects ,functions and its types which make the code more simple, reusable, and powerful. 3. Visited and studied some creative websites on Awwwards to learn about modern web design ideas. + Step 12 in JavaScript for Web Development. >>#HarshVandanaSharma #SheriyansCodingSchool #LearningJourney #JavaScript #WebDevelopment #FrontendDesign #CareerGrowth

Here's my latest project for the #30Days30JSChallenge: Custom Select Menu! 🚀 This project demonstrates how to build a fully functional, stylish dropdown menu using only HTML, CSS, and vanilla JavaScript. It replaces the default browser <select> menu with a custom UI for better styling and control. Key Features Implemented: ✨ Custom styling for the select field and options. 🖱️ Click-to-Toggle: The options list appears only when the select field is clicked. 🔄 Dynamic Text Update: Selecting an option updates the main field text and image. This was project 24 of 30! Just a few more to go! Check out the full code and give it a star if you find it helpful: 🔗 Project Link: https://lnkd.in/gUgu8qDE #JavaScript #WebDevelopment #FrontendDevelopment #HTML #CSS #JSProjects #Developer #CustomSelectMenu #30Days30JSProjects

💻 Prerequisites for Web Development Before diving into coding, set up your workspace! Use VS Code as your code editor, install the Live Server extension for instant preview, and understand basic file formats — .html, .css, .js — the building blocks of the web. #WebDevelopment #CodingBasics #HTML #CSS #JavaScript #VSCode #LearnToCode #FrontendDevelopment #TechSkills

Web Development – DOM Manipulation & Events Today’s practice focused on DOM Manipulation and Event Handling in JavaScript. We selected elements, modified their content and attributes using innerHTML, setAttribute(), and insertAdjacentHTML(), and explored how to hide or unhide elements dynamically. We also handled single and double click events to change text in real time — a practical example of how JavaScript interacts with the DOM to make web pages dynamic and responsive. GitHub: https://lnkd.in/euDPucHx #JavaScript #DOMManipulation #WebDevelopment #FrontEnd #HTML #CSS #Coding #LearnToCode #SoftwareDevelopment

🧠 Day 32 — Web Development Today’s lecture was a deep dive into how JavaScript actually works behind the scenes — understanding its single-threaded nature and the magic of asynchronous execution. 🔍 What I Learned: - Why JavaScript is single-threaded and synchronous by design. - The truth behind its non-blocking behavior. - How Web APIs manage async operations like setTimeout, fetch, and promises. - The role of the Event Loop, Callback Queue, and Task Queue in handling concurrency. - Step-by-step visualization of how JavaScript executes code efficiently without freezing the browser. 💡 This session cleared up how async functions truly work — now the concepts of event loops and callbacks finally make sense. #WebDevelopment #JavaScript #Frontend #LearningJourney #AsyncJS #EventLoop Rohit Negi

Today, I focused on understanding the DOM (Document Object Model) one of the most important concepts in web development. The DOM allows JavaScript to interact with HTML and make a webpage dynamic and interactive. In simple words I learned how JavaScript can select, change, and update elements on the page in real-time. Some key things I practiced today: Selecting elements using getElementById and querySelector Changing text and styles with JavaScript Handling button click events Updating the UI based on user actions Learning the DOM felt like unlocking a new superpower in web development! 💡⚡ Small steps every day are shaping my skills more clearly. #WebDevelopment #JavaScript #DOM #FrontendDevelopment #LearningInPublic #CodingJourney #FullStackDeveloper #TechCommunity

How does your browser sneak data off the web? It’s not magic, it’s the Fetch API. With just a few lines of JavaScript, you can request, send, or update data from any web service. We broke it down into simple, visual steps so you can: • See real-world example of fetching data from an API • Understand key concepts visually • Learn faster, perfect for beginners and curious developers Your quick-start guide to making HTTP requests in JavaScript is just a click away 👇 👉 Read the full guide on GreatFrontEnd https://lnkd.in/gkVNiRXS #JavaScript #WebDevelopment #FrontendDevelopment #greatfrontend