Logesh K P’s Post

Relearning Frontend Fundamentals: Rendering pipeline For a basic Html ,css , js file The rendering process looks something like this 1.Tokenization : Browser parses the HTML file and creates tokens 2. DOM : For each start tag token, a corresponding Node is created and added to the Document Object Model (DOM) tree. 3.CSSOM : it encounters a link tag pointing to a css file , the browser fetches the css file , parses and starts building a CSSOM tree 4.JS : it reads the first script tag , it blocks everything and fetches and executes js then resume building html , css tree. (This is by default , the order can be changed with properties such as "defer" and "async" which could affect performance) 5.Render Tree : HTML and CSS tree makes a Render Tree 6.Layout : layout is shifted , calculating position of each element 7.Paint : The pixels are painted on the screen , user finally sees the content. #FrontendDevelopment #JavaScript #Rendering #DOM

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

📘 Master DOM Operations in JavaScript! 💻 DOM (Document Object Model) lets you dynamically access and manipulate elements in your webpage! 🚀 Here are the most used operations every web developer should know 👇 🔹 Selection Methods: 📌 getElementById() – Get element by its ID 📌 getElementsByClassName() – Select all elements by class 📌 querySelector() / querySelectorAll() – Modern way to select elements with CSS selectors 🔹 Navigation: 🧭 parentNode, children, firstElementChild, lastElementChild – Move through DOM hierarchy ↔️ previousElementSibling, nextElementSibling – Navigate between elements 🔹 Attributes: 🏷️ getAttribute(), setAttribute(), removeAttribute() – Manage element attributes 🔹 Create & Modify: 🪄 createElement(), appendChild(), insertBefore(), removeChild() – Build and update DOM structure dynamically 🔹 Measurements: 📏 clientTop, clientLeft, clientHeight, clientWidth – Get element dimensions and positioning 💡 Master these to make your web pages interactive, dynamic, and powerful! ⚡ #JavaScript #DOM #WebDevelopment #Frontend #CodingTips #LearnToCode #Codeflare #codingirlben

🕒 Day 16, Project 5 – Building a Real-Time Digital Clock with JavaScript Body: As part of Day 16 in the “3 Pro” series by Rohit Negi (Coder Army), I developed a real-time digital clock using HTML, CSS, and JavaScript. This project demonstrates how to use JavaScript’s Date object, DOM manipulation, and the setInterval method to create dynamic, real-time web applications. Project Features: Displays the current time (HH:MM:SS) dynamically on the webpage. Updates every second without page reload using setInterval(). Uses JavaScript Date object and toLocaleTimeString() for formatting. Simple HTML structure and clean CSS styling for a user-friendly interface. Key JavaScript Logic: const div = document.querySelector('div'); function updateClock() { let time = new Date(); div.textContent = time.toLocaleTimeString(); } // Initial call to display immediately updateClock(); // Update clock every 1 second setInterval(updateClock, 1000); Why This Project? Introduces beginners to real-time updates in web apps. Demonstrates DOM manipulation to dynamically change content. Shows practical use of JavaScript timing functions for interactive applications. A fun, beginner-friendly project to learn dynamic web development concepts. #WebDevelopment #JavaScript #HTML #CSS #CoderArmy #RohitNegi #Day16Project5 #DigitalClock #InteractiveWebApp #BeginnerFriendly

HTML builds the house, CSS paints it, but JavaScript throws the party inside! 🥳 You can stare at static HTML and CSS all day, and it might look great. You'll have buttons, text, and structure. But it's just a lifeless webpage. Then, JavaScript walks in. Take this simple calculator project I built. HTML: Set up the "8", the "2", the four operation buttons, and a place for the answer. CSS: Made it all look clean and centered. JavaScript: This is where the magic happens. 🧠 With a few lines of JS, those buttons suddenly have a purpose. They "listen" for a click, grab the numbers, perform the math, and instantly update the page with the correct answer. That's the power of JavaScript and DOM manipulation, It takes a static document and turns it into a living, interactive application. It's the engine that brings your code to life! What was the first project that made you truly appreciate the power of JavaScript? #JavaScript #WebDevelopment #FrontEndDeveloper #HTML #CSS #CodingJourney #Developer #Tech #LearnToCode

🚀 Day 54 of #100DaysOfCodingChallenge Today, I created a To-Do List Web Application using HTML, CSS, Bootstrap, and JavaScript 📝 This project might look simple at first glance, but it’s one of the best exercises to strengthen core front-end concepts such as: ✨ Dynamic DOM manipulation ✨ Event handling (adding, deleting, checking tasks) ✨ Managing data using Local Storage ✨ Structuring clean UI with Bootstrap 4 ✨ Writing reusable functions to handle user interactions 💡 Features implemented: ✅ Add new tasks 🗑️ Delete tasks ✔️ Mark tasks as completed 💾 Save tasks even after page reload (via Local Storage) This project helped me understand how to connect JavaScript logic with HTML elements in real-time, and gave me a better grip on how state management works inside web applications. It’s a small step, but one that builds the foundation for more complex apps like Notes, Reminders, or Task Managers! 💪 Onward to the next milestone! #Day54 #100DaysOfCode #WebDevelopment #JavaScript #Frontend #Bootstrap #CodingJourney #LocalStorage #TodoApp #KeepLearning #Motivation #DeveloperLife

🚀 Built a Dynamic Comment System using JavaScript, HTML, CSS & Bootstrap! I recently developed an interactive Comment UI system that dynamically generates elements using pure JavaScript — without relying on any frontend frameworks. ✅ Features: • Dynamically creates a responsive UI using DOM manipulation • Fetches real comments from a public API (https://lnkd.in/gF4Qd3e7) • Includes a comment box, formatting toolbar, emoji & image icons • Custom styles using Bootstrap & my own CSS • "Submit" button allows users to post new comments dynamically 💻 Tech Stack: JavaScript | HTML5 | CSS3 | Bootstrap 5 🎯 This project helped me strengthen my DOM manipulation skills and understand how dynamic UI rendering works behind the scenes. 🔗 Check out my code on GitHub (if uploaded) ✨ #JavaScript #WebDevelopment #Frontend #HTML #CSS #Bootstrap #LearningByDoing Codebegun

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

🚀Understanding the DOM in JavaScript In this session, we dived into one of the most essential concepts in web development — the Document Object Model (DOM). 🌳 What is the DOM? The DOM represents an HTML document as a tree structure, enabling JavaScript to access, modify, and dynamically interact with webpage content, structure, and styling. ✅ Topics We Covered 🔍 Accessing DOM Elements getElementById() – Select elements using a unique ID getElementsByClassName() – Retrieve elements by class getElementsByTagName() – Select elements using tag names querySelector() – Fetch the first match to a CSS selector querySelectorAll() – Fetch all matches to a CSS selector 🛠️ Manipulating DOM Elements setAttribute() – Add or update attributes createElement() – Dynamically create HTML elements innerHTML – Insert or update HTML content 🎛️ Accessing User Input Using .value, we can retrieve user-entered data from: Text fields Dropdowns Text areas ⚡ DOM Events We Explored onclick onchange onsubmit onkeypress / onkeydown / onkeyup onmouseover / onmouseout onload ✅ What We Practiced Accessing HTML elements using document.getElementById() Reading values from input fields, dropdowns, and text areas Displaying output dynamically using innerHTML Handling user interactions through onclick events 🖥️ Output on Browser When the user enters their name, email, and selects a city, clicking the Submit button displays all the information directly on the webpage — no reloads, no console logs, just smooth DOM manipulation. 🎯 Key Takeaways The DOM enables real-time interaction between HTML and JavaScript innerHTML helps display dynamic content instantly Event handling makes web pages interactive and user-friendly A big thank you to Ravi Siva Ram Teja Nagulavancha Sir Saketh Kallepu Sir Uppugundla Sairam Sir Codegnan #WebDevelopment #JavaScript #DOM #Frontend #HTML #CSS #Programming #LearningJourney #Developers #TechEducation #Codegnan

Understanding DOM Manipulations in JavaScript 🌟 Today I explored DOM (Document Object Model) Manipulation — one of the most important concepts in web development! 💻 The DOM represents the structure of a webpage as a tree of HTML elements, allowing JavaScript to access, modify, and update content dynamically. Here are some key methods I learned: 🔹 getElementById() – Selects an element by its ID. 🔹 getElementsByClassName() – Selects all elements with a specific class. 🔹 getElementsByTagName() – Selects elements by their tag name. 🔹 getElementsByName() – Selects elements using their name attribute. 🔹 querySelector() – Selects the first element that matches a CSS selector. 🔹 querySelectorAll() – Selects all elements that match a CSS selector. Example 👇 document.getElementById("demo").innerHTML = "Hello DOM!"; document.querySelector(".btn").style.color = "blue"; ✨ With DOM manipulation, we can create interactive, dynamic, and user-friendly web pages that respond instantly to user actions! #JavaScript #WebDevelopment #Frontend #Learning #DOM #Coding