Vijay Shekh’s Post

🚀 30 Days of JavaScript – Day 17 Today I moved from basic JavaScript programs to building a real frontend feature using HTML, CSS, and JavaScript. 💡 Project: Signup Form with Validation This form is not just UI — it includes real user interaction and validation logic. ✅ Features: • Validates name, email, and password • Shows error messages near input fields • Prevents page reload on submit • Displays success message after valid submission • Automatically clears the form 🧠 Concepts Used: • DOM manipulation • event handling (addEventListener) • form validation logic • conditional statements • basic UI styling with CSS 📌 This helped me understand how real websites handle user input and validation. 🎥 Demo below 👇 👉 Source code in first comment (only JS Code). #JavaScript #FrontendDevelopment #HTML #CSS #WebDevelopment #LearningJavaScript #CodingJourney

Just built a simple modal popup using HTML, CSS, and JavaScript. Features: • Open and close buttons • Close on Escape key • Click outside to close • Clean UI with background image This helped me understand DOM manipulation, event handling, and class toggling in JavaScript. Still learning and improving step by step. #HTML #CSS #JavaScript #WebDevelopment #LearningByDoing

🚀 Learning in Public – JavaScript DOM Today in class we explored the Document Object Model (DOM) in JavaScript. The DOM represents an HTML document as a tree structure where each element becomes an object that JavaScript can interact with. Through DOM manipulation we can make web pages dynamic and interactive. 💡 Things I learned today: • How to select elements using "document.getElementById()" "document.querySelector()" • How to modify content using "innerHTML" and "textContent" • How to change styles dynamically with JavaScript • Handling user actions using "addEventListener()" Example: document.querySelector("button").addEventListener("click", () => { document.getElementById("title").textContent = "Button Clicked!"; }); This simple concept is the foundation behind many interactive web features like forms, to-do lists, and dynamic UI updates. Small steps every day toward becoming a better developer. 💻 thanks Suraj Kumar Jha for the amazing lecture #LearnInPublic #JavaScript #WebDevelopment #DOM #chaicode

🚀 Built a mini utility-first CSS generator to understand how frameworks like Tailwind work under the hood. Using HTML + Node.js, I created a system where classes like chai-p-8 and chai-bg-red are automatically converted into CSS. 💡 What I learned: ->How utility CSS systems are structured ->Parsing HTML and extracting class names ->Mapping class patterns to CSS dynamically This project helped me move beyond just using CSS frameworks to actually understanding how they work. Repo link :-https://lnkd.in/g8YCh4pg Hitesh Choudhary | Piyush Garg |Suraj Kumar Jha |Akash Kadlag #WebDevelopment #JavaScript #NodeJS #CSS #Learning

🚀 JavaScript Object Cheat Sheet Every Developer Should Know Objects are the heart of JavaScript. Almost everything in JavaScript revolves around objects, properties, and methods. If you master objects, you automatically level up your JavaScript skills. Here’s a quick JavaScript Object Cheatsheet to remember the most useful patterns: 🔹 Object Declaration const user = { name: "Profile", followers: 4817 } 🔹 Access Properties user.name // dot notation user["name"] // bracket notation 🔹 Delete Property delete user.name 🔹 Iterate Objects for (const key in user) { console.log(key, user[key]) } 🔹 Copy Object const copy = {...user} // shallow copy const deepCopy = structuredClone(user) // deep copy 🔹 Freeze Object Object.freeze(user) 🔹 Destructuring const { name, followers } = user 🔹 Getter & Setter const user = { name: "Profile", get profile(){ return this.name } } 💡 Pro Tip: Using destructuring, spread operator, and Object.freeze() properly makes your JavaScript code cleaner and safer. 📌 Save this cheat sheet so you can quickly review JavaScript objects anytime. If this helped you: 👍 Like 💬 Comment your favorite JavaScript feature 🔁 Share with a developer friend Follow for more JavaScript Cheat Sheets & Developer Tips 🔗 LinkedIn: mdyousufali205 #javascript #webdevelopment #programming #coding #frontend #softwareengineering #developers #javascriptdeveloper #codingtips #devcommunity #learnprogramming #100DaysOfCode #webdev

JavaScript Mini Project | Dynamic Quote Generator Learning becomes powerful when we apply concepts to real projects. Today I built a Dynamic Quote Generator using HTML, CSS, and JavaScript, where I implemented the concepts I learned in my previous JavaScript lectures. This project randomly displays motivational quotes on the webpage, making the page dynamic and interactive using JavaScript. Here are the concepts I used while building this project: ● Using arrays in JavaScript to store multiple quotes ● Generating random numbers using Math.random() ● Accessing elements using document.getElementById() ● Updating content dynamically using textContent / innerHTML ● Using functions to organize JavaScript logic ● Implementing setInterval() to change quotes automatically ● Applying DOM manipulation to update webpage content in real time Projects like this help me better understand how JavaScript controls webpage behavior and creates interactive user experiences. Step by step, I am improving my JavaScript and Frontend Development skills by building small practical projects. #JavaScript #WebDevelopment #FrontendDevelopment #DOM #DOMManipulation #CodingJourney #Programming #LearnJavaScript #DeveloperJourney #CodingLife #SoftwareDevelopment #BuildInPublic #TechLearning

Understanding Currying in JavaScript Ever heard of currying? It's a cool technique that makes your code cleaner and more reusable! What is Currying? Currying is when you break down a function that takes multiple arguments into a series of functions that each take one argument. Simple Example: Instead of: javascript function add(a, b, c) { return a + b + c; } add(1, 2, 3); // Output: 6 You write: javascript function add(a) { return function(b) { return function(c) { return a + b + c; } } } add(1)(2)(3); // Output: 6 Why Use It? Reusability: Create specialized functions easily Cleaner code: Break complex logic into smaller pieces Function composition: Combine functions in powerful ways Real-world benefit: javascript const addFive = add(5); addFive(2)(3); // Output: 10 Now you have a function that always adds 5 first! #javascript #webDeveloper #uiDeveloper #frontendDeveloper #react #reactjs

Debounce vs Throttle in JavaScript – Performance Optimization Handling frequent events like scroll, resize, and search input can easily impact application performance if not optimized properly. Two powerful techniques used in modern JavaScript applications are Debounce and Throttle. 🔹 Debounce Debounce delays the execution of a function until the user stops triggering the event for a specific time. ✔ Best used for search inputs, form validation, and auto-save features ✔ Prevents unnecessary API calls Example: When a user types in a search bar, the API request is triggered only after the user stops typing. 🔹 Throttle Throttle ensures a function executes at a fixed interval, even if the event triggers multiple times. ✔ Best used for scroll events, resize events, and mouse movement ✔ Limits how often a function runs Example: While scrolling a page, the function executes every few milliseconds instead of hundreds of times per second. 💡 Simple Rule to Remember Debounce → Wait until action stops Throttle → Run at regular intervals These techniques help developers build high-performance and responsive web applications. #JavaScript #FrontendDevelopment #PerformanceOptimization #WebDevelopment #Angular #CodingTips 🚀

Everyone said, "Just learn a framework." But I wanted to understand the foundation first. So I started with HTML, CSS, and JavaScript — no shortcuts, no libraries. It wasn't easy. Layouts broke. Logic didn't work. I Googled the same error 10 times. But slowly, things started clicking. A blank screen became a webpage. A webpage became an interactive experience. And I realized — the basics aren't boring. They're powerful. 💡 If you're just starting out, don't skip the fundamentals. Every great developer once stared at a broken div. Build with what you know. Level up from there. #HTML #CSS #JavaScript #WebDevelopment #FrontendDevelopment #LearningInPublic

What do you think will be the output of these expressions in javascript? {} + [] [] + {} {} + {} [] + [] At first glance, most developers assume JavaScript will treat these as normal object or array operations. But the real reason behind the output is type coercion and how JavaScript converts objects and arrays into primitive values when using the + operator. When the + operator is used with objects or arrays, JavaScript tries to convert them into primitive values (usually strings). An empty array [] becomes an empty string "" An object {} becomes "[object Object]" After this conversion, the + operator performs string concatenation. So the expressions effectively become: "[object Object]" + "" "" + "[object Object]" "[object Object]" + "[object Object]" "" + "" Understanding this behavior is important because JavaScript’s implicit type coercion can sometimes lead to unexpected results in real-world applications. A simple rule to remember: {} → "[object Object]" [] → "" Once you remember this conversion, these puzzles become much easier to reason about. For more insightful content checkout below: 🟦 𝑳𝒊𝒏𝒌𝒆𝒅𝑰𝒏 - https://lnkd.in/dwi3tV83 ⬛ 𝑮𝒊𝒕𝑯𝒖𝒃 - https://lnkd.in/dkW958Tj 🟥 𝒀𝒐𝒖𝑻𝒖𝒃𝒆 - https://lnkd.in/dDig2j75 or Priya Frontend Vlogz 🔷 𝐓𝐰𝐢𝐭𝐭𝐞𝐫 - https://lnkd.in/dyfEuJNt   #frontend #javascript #react #reactjs #html #css #typescript #es6 #interviewquestions #interview #interviewpreparation