🚀 JavaScript – Updating CSS Variables with JS Built a dynamic CSS updater using HTML, CSS, and Vanilla JavaScript 🎯 🔹 Used :root CSS variables (blur, spacing, base color) 🔹 Improved understanding of change and mousemove events 🔹 Learned that querySelectorAll() returns a NodeList (not an array) and how to use forEach() 🔹 Implemented real-time style updates on drag ⚙️ Challenge: Handling dynamic px units for blur and spacing. 🔗 GitHub Repo: https://lnkd.in/gT3kKbCE #JavaScript #LearningInPublic #WebDevelopment #StudentDeveloper

🚀 Learning JavaScript DOM Manipulation – Real Practice! Today I practiced JavaScript DOM manipulation by working with getElementById() and getElementsByTagName() to dynamically access and modify HTML elements. In this task, I: Created a simple HTML structure with multiple <p> tags Used JavaScript to select elements using their ID and tag name Extracted a specific paragraph value using index Updated the page content dynamically using innerHTML 💡 This helped me clearly understand: How JavaScript interacts with HTML How to access and manipulate multiple elements How dynamic content rendering works in real-time Here’s a small example of what I implemented: ✔ Accessing elements ✔ Reading values ✔ Displaying output dynamically Every small project improves logical thinking and frontend skills 💻✨

Day 8: Higher Order Functions in JavaScript If you understand Higher Order Functions, you understand real JavaScript. 💡 Because in JavaScript, functions are first-class citizens. 🔹 What is a Higher Order Function? A function that: ✅ Takes another function as an argument OR ✅ Returns another function 🔹 Example 1: Function as Argument function greet(name) { return "Hello " + name; } function processUserInput(callback) { const name = "Shiv"; console.log(callback(name)); } processUserInput(greet); Here, processUserInput is a Higher Order Function because it accepts another function as a parameter. 🔹 Example 2: Function Returning Function function multiplier(x) { return function(y) { return x * y; }; } const double = multiplier(2); console.log(double(5)); // 10 This is the foundation of: ✔️ Closures ✔️ Currying ✔️ Functional programming 🔥 Real-Life Examples in JavaScript You already use Higher Order Functions daily: array.map() array.filter() array.reduce() All of them take a function as input. #Javascript #HigherOrderFunction #WebDevelopment #LearnInPublic

🚀✨JavaScript Handwritten Notes | Core Concepts for Every Developer 👩🎓Learning JavaScript becomes easier when concepts are written and revised ✨ Sharing my handwritten JavaScript notes covering fundamentals to strengthen basics. 🟡 JavaScript Basics 🔹Variables: var, let, const 🔹Data Types: Number, String, Boolean, Object, Array 🔹Operators & Conditions 🟡 Functions 🔹Function Declaration & Expression 🔹Arrow Functions 🔹Callback Functions 🟡 Control Flow 🔹if-else 🔹switch 🔹Loops (for, while, do-while) 🟡 Arrays & Objects 🔹Array methods: map(), filter(), reduce() 🔹Object properties & methods 🟡 DOM & Events 🔹DOM Manipulation 🔹Event Listeners 🟡 Async JavaScript 🔹setTimeout, setInterval 🔹Promises 🔹async / await 📌 Consistent notes = Strong fundamentals #JavaScript #WebDevelopment #Frontend #HandwrittenNotes #LearningJourney #InterviewPrep #Parmeshwarmetkar

JAVASCRIPT NOTES — PART 1 (Foundations) After structure (HTML) and styling (CSS), JavaScript is where logic begins. This post covers the fundamentals that everything else depends on: • Variables (let, const, scope) • Data types • Operators & type coercion • Conditionals & loops • Functions & hoisting Most confusion in JavaScript doesn’t come from complexity — it comes from unclear basics. Before frameworks, before React, understanding these concepts clearly makes everything easier. 📌 Save this if you’re building JavaScript properly. #JavaScript #WebDevelopment #FrontendDeveloper #LearningInPublic #InterviewPrep #StudentDeveloper #Consistency

This video shows a beginner-level JavaScript project built using HTML, CSS, and JavaScript. The main focus is on practicing HTML DOM tree manipulation. When a user clicks on different buttons (Spring, Summer, Autumn, Winter), JavaScript dynamically changes the image using DOM element selection and event handling. This project helped me understand how JavaScript interacts with the DOM and updates content based on user actions. #JavaScript #HTML #CSS #WebDevelopment #FrontendDevelopment #DOM #DOMManipulation #JavaScriptBasics #BeginnerProject #LearningJavaScript #nxtwave

8 JavaScript String Methods That Every Developer Uses Daily String manipulation is at the core of almost every JavaScript project, yet many developers still Google these methods every time. Master these 8 essential methods and write cleaner, faster, more professional code from day one. These aren't just beginner concepts. Senior developers rely on these same methods in production code every single day. Bookmark this carousel. Share it with your team. What's your most-used JavaScript method? Let's discuss below 👇 #JavaScript #SoftwareDevelopment #WebDevelopment #ProgrammingTips #FrontendEngineering

Parser-blocking JavaScript is often an overlooked issue in frontend performance. When the browser encounters a synchronous <script> tag: • HTML parsing pauses • DOM construction stops • Script executes • Rendering is delayed This issue can easily be missed, but it is measurable in DevTools. I conducted an experiment, recorded the Performance trace, and documented how using defer alters the entire timeline. The difference is immediate and visible. #WebPerformance #JavaScript #FrontendDevelopment #HTML

💡 JavaScript Call Stack 🧠 What is the Call Stack? It keeps track of which function is currently running in JavaScript. ⚡ Why do we need it? JavaScript executes code one function at a time Call Stack maintains execution order 🧠 Think Like This Function called → pushed to stack Function finished → popped from stack 🎯 Interview One-Liner Call Stack manages function execution order. 📌 Used In Function calls Recursion Error stack traces #JavaScript #CallStack #ExecutionContext #FrontendDevelopment #InterviewTips

🚀 JavaScript Fundamentals: Small Differences, Big Impact While practicing JavaScript patterns and loops, I clearly understood how small changes can completely affect output and logic. 🔹 Difference between let and var in for loops Using var: Function scoped Variable leaks outside the loop Can cause unexpected bugs (especially in async code) Allows redeclaration Using let: Block scoped Limited only to the loop block Safer and predictable Preferred in modern JavaScript 👉 Best practice: Always use let in loops. 🔹 Difference between console.log inside vs outside inner loop console.log INSIDE inner loop: Prints while the row is being built Executes multiple times per row Produces triangle / step-by-step patterns console.log OUTSIDE inner loop: Prints after completing one row Executes once per row Produces square, rectangle, or aligned patterns 🧠 Key Learnings Loop behavior depends on scope Pattern output depends on where you print Understanding fundamentals avoids logical mistakes in interviews 🙏 Thanks to my mentor sanjeev ch for guiding me to focus on logic, not just output. #JavaScript #WebDevelopment #CodingFundamentals #LearningJavaScript