"Boosting JavaScript Performance with Memoization"

🚀Today I learned: How JavaScript executes inside the browser! We all write JavaScript every day — but have you ever wondered what actually happens behind the scenes when we run our code? Here’s what I learned👇 🔹Step-by-step explanation: 1️⃣Source Code → We write JavaScript in a .js file — just plain text that browsers can’t execute directly. 2️⃣Parsing → The JavaScript engine reads the code, checks for syntax errors, and prepares it for further processing. 3️⃣AST (Abstract Syntax Tree) → The code is converted into an AST, a structured tree that represents the program logic in a machine-understandable format.🌳 4️⃣Interpreter → The AST is passed to the interpreter, which converts it into bytecode for quick startup and execution. 5️⃣Execution & Profiling → While executing bytecode, the engine tracks which parts of the code run most frequently — known as “hot” code. 6️⃣Optimizing Compiler (JIT) → The JIT (Just-In-Time) compiler takes that hot code and compiles it into machine code, making it much faster.⚡ 7️⃣Machine Code Execution → Finally, this optimized machine code runs directly on the CPU, giving JavaScript near-native speed and efficiency. 🧠In simple words: JavaScript uses both an Interpreter (for quick startup) and a JIT Compiler (for optimized performance). Really fascinating to see how much happens behind the scenes every time we run a simple JS file!✨ #TodayILearned #JavaScript #WebDevelopment #Frontend #Programming #V8Engine #LearningEveryday #10000coders #SudheerVelpula Special thanks to Sudheer Velpula Sir and @10000 Coders for the amazing learning journey and constant guidance🙌

🚀 Learning Update: Queue in JavaScript Built a Queue from scratch today! 🖥️ Queue follows FIFO (First In, First Out) — like people waiting in line. Snippet: class Queue {  constructor() { this.items = []; }  enqueue(val) { this.items.push(val); }  dequeue() { return this.items.length ? this.items.shift() : undefined; }  peek() { return this.items[0]; }  print() { console.log("start >", this.items.join(" > "), "> end"); } } const q = new Queue(); q.enqueue(10); q.enqueue(20); q.enqueue(30); q.print();    q.dequeue(); q.print();    console.log("Peek:", q.peek()); 💡 Key Takeaways: enqueue() & dequeue() in action Queue is great for task scheduling, async operations Practiced logic & abstraction Next up: Linked Lists 🔗 Can’t wait! #JavaScript #DataStructures #Queue #CodingJourney #WebDevelopment

Think recursion is scary? Reversing an array takes just two lines-and the logic is cleaner than you expect 🎯 Let me break down how recursion reverses an array step by step - this'll change how you think about problem-solving! 💪 𝐓𝐡𝐞 𝐓𝐰𝐨-𝐋𝐢𝐧𝐞 𝐌𝐚𝐠𝐢𝐜: function reverseArray(arr, start = 0, end = arr.length - 1) { if (start >= end) return arr; [arr[start], arr[end]] = [arr[end], arr[start]]; return reverseArray(arr, start + 1, end - 1); } 𝐇𝐞𝐫𝐞'𝐬 𝐭𝐡𝐞 𝐬𝐭𝐞𝐩-𝐛𝐲-𝐬𝐭𝐞𝐩 𝐛𝐫𝐞𝐚𝐤𝐝𝐨𝐰𝐧 𝐭𝐡𝐚𝐭'𝐥𝐥 𝐦𝐚𝐤𝐞 𝐢𝐭 𝐜𝐥𝐢𝐜𝐤: 🎯 𝐁𝐚𝐬𝐞 𝐂𝐚𝐬𝐞 - When start meets or exceeds end, we're done (no more swapping needed!) 🎯 𝐒𝐰𝐚𝐩 - Exchange elements at start and end positions using destructuring 🎯 𝐑𝐞𝐜𝐮𝐫𝐬𝐢𝐯𝐞 𝐂𝐚𝐥𝐥 - Move inward (start+1, end-1) and let recursion handle the rest 𝐖𝐚𝐭𝐜𝐡 𝐢𝐭 𝐰𝐨𝐫𝐤 𝐰𝐢𝐭𝐡 [1,2,3,4,5]: • Call 1: Swap positions 0,4 → [5,2,3,4,1] • Call 2: Swap positions 1,3 → [5,4,3,2,1] • Call 3: start=2, end=2 (base case reached - we're done!) 𝐖𝐡𝐲 𝐭𝐡𝐢𝐬 𝐚𝐩𝐩𝐫𝐨𝐚𝐜𝐡 𝐢𝐬 𝐩𝐮𝐫𝐞 𝐠𝐞𝐧𝐢𝐮𝐬: Recursion handles the "unwinding" naturally. Each call focuses on one swap, then trusts the next call to handle the rest. No loops, no complex indexing - just clean, mathematical thinking that reads like English! 🚀 As a React developer, this same recursive pattern shows up everywhere - component trees, state management, you name it. Master it here and watch those concepts become second nature. Drop a ❤️ if this made recursion click for you! #WebDevelopment #JavaScript #Recursion

𝐉𝐚𝐯𝐚𝐒𝐜𝐫𝐢𝐩𝐭 𝐍𝐚𝐦𝐢𝐧𝐠 𝐂𝐨𝐧𝐯𝐞𝐧𝐭𝐢𝐨𝐧𝐬 𝐍𝐨 𝐎𝐧𝐞 𝐅𝐨𝐥𝐥𝐨𝐰𝐬 (𝐁𝐮𝐭 𝐒𝐡𝐨𝐮𝐥𝐝) Messy variable names make JS code hard to read, even if it works. In my latest blog, I cover: - 💡 Start and end variable names with letters — not _ or $ - 💡 Snake_case isn’t dead — sometimes it’s the cleanest choice - 💡 Reserved words are more than a restriction; they’re a legacy from 1950s memory limits Tips inspired by 𝐃𝐨𝐮𝐠𝐥𝐚𝐬 𝐂𝐫𝐨𝐜𝐤𝐟𝐨𝐫𝐝 Read it here 👉 https://lnkd.in/d_j6X-8J

JavaScript Learning – Today's Topic : Understanding Closures Have you ever seen a function “remember” variables even after its parent function has finished running? 🤔 That’s not magic — it’s called a Closure ✨ 🔍 What is a Closure? A closure is formed when an inner function “remembers” the variables of its outer function, even after that outer function has completed execution. In short: Functions remember the environment they were created in. Example 1: Simple Closure Javascript function outer() { let name = "Venkatesh"; function inner() { console.log("Hello, " + name); } return inner; } const greet = outer(); greet(); // Output: Hello, Venkatesh Explanation: • The outer() function returns inner(). • Even though outer() is done executing, the inner function still remembers the name — that’s closure! Example 2: Private Variables (Real-life Use) Javascript function counter() { let count = 0; return { increment: function() { count++; console.log(count); }, decrement: function() { count--; console.log(count); } }; } const myCounter = counter(); myCounter.increment(); // 1 myCounter.increment(); // 2 myCounter.decrement(); // 1 ✅ Here, count is private — you can’t access it directly from outside! Closures help in data hiding and encapsulation (like private variables in OOP). 🧠 Why Closures Are Useful ✅ Maintain state between function calls ✅ Implement data privacy ✅ Used in callbacks and event listeners ✅ Help create factory functions and module patterns In Simple Words A closure is like a backpack 🎒 — when a function travels, it carries the variables it needs from its home environment. #JavaScript #Closures #WebDevelopment #Coding #FrontendDevelopment #LearnToCode #JSConcepts #WebDev #Programming #Developer #CodeNewbie #100DaysOfCode #SoftwareEngineering #JavaScriptTips #CodeWithVenkatesh #WebTech #AsyncJS #TechLearning #InterviewPrep

💡 Encapsulation & Polymorphism — Bringing Structure to JavaScript After getting comfortable with Classes, I dived into how Encapsulation and Polymorphism bring real shape and discipline to Object-Oriented Programming (OOP) in JavaScript. 🚀 🔒 Encapsulation taught me the importance of protecting and controlling data — using private fields (#) and getters/setters to manage access. It’s like setting healthy boundaries inside your code — clean, safe, and predictable. 🎭 Polymorphism showed me the power of flexibility — where different classes can share the same method names but behave differently based on context. It’s creativity meeting structure — and it makes your code truly adaptable. ✨ Together, they transformed my code from scattered logic into a well-organized, reusable system that actually feels designed. 💬 “Good code isn’t just about working — it’s about being organized, reusable, and scalable.” #JavaScript #OOP #Encapsulation #Polymorphism #FrontendDevelopment #CleanCode #CodingJourney #LearnInPublic #Developers

Mozilla released an interesting preview of a Graphing algorithm they wrote for displaying generated code blocks from their JIT compiler for #JavaScript https://lnkd.in/dXjiW-jv

🌲 𝐖𝐚𝐥𝐤𝐢𝐧𝐠 𝐓𝐡𝐫𝐨𝐮𝐠𝐡 𝐭𝐡𝐞 𝐅𝐨𝐫𝐞𝐬𝐭 𝐨𝐟 𝐑𝐞𝐜𝐮𝐫𝐬𝐢𝐨𝐧 — 𝐀 𝐕𝐢𝐬𝐮𝐚𝐥 𝐉𝐨𝐮𝐫𝐧𝐞𝐲 I’ve always found recursion fascinating, not just as a concept, but as a mirror of how we think. We go deeper into problems, reach a point of clarity, and then - like a recursive call - return stronger, lighter, and more complete. Today, I decided to visualize that journey. Instead of reading about recursive calls and stack frames, I built a small forest where every click represents a call, every log a thought in the stack, and every deletion… a quiet return to peace 🍃 💻 Built with HTML, CSS, and JavaScript, this demo shows how a 𝐧𝐨𝐝𝐞 𝐢𝐬 𝐝𝐞𝐥𝐞𝐭𝐞𝐝 𝐢𝐧 𝐚 𝐁𝐢𝐧𝐚𝐫𝐲 𝐒𝐞𝐚𝐫𝐜𝐡 𝐓𝐫𝐞𝐞 - specifically when that node has no child nodes beneath it. Next, I’ll connect it to a 𝐆𝐨 𝐛𝐚𝐜𝐤𝐞𝐧𝐝 𝐀𝐏𝐈, letting users 𝐢𝐧𝐬𝐞𝐫𝐭, 𝐬𝐞𝐚𝐫𝐜𝐡, and 𝐝𝐞𝐥𝐞𝐭𝐞 𝐧𝐨𝐝𝐞𝐬 in real time 🌐 Because sometimes, the best way to understand code… is to watch it breathe. Would you try learning recursion this way? 👇 #WebDevelopment #GoLang #Recursion #Visualization #LearningInPublic #SoftwareEngineering #BinaryTree #FrontendDevelopment

💡 LeetCode #268 — Missing Number (JavaScript Edition) This problem looks simple, but it’s one of those logic-building gems that teach you how to think mathematically in code. You’re given an array containing numbers from 0 to n, but one number is missing. The task? Find that number efficiently. Here’s the beauty — instead of using loops or sorting tricks, we can use a mathematical formula: 🔹 The sum of first n natural numbers = (n * (n + 1)) / 2 🔹 Subtract the actual sum of the array from this total — and the result is the missing number! function missingNumber(arr) { let n = arr.length; let sum = 0; let total = (n * (n + 1)) / 2; for (let i = 0; i < n; i++) { sum += arr[i]; } return total - sum; } console.log(missingNumber([0, 4, 2, 1])); 🧠 Fun fact: This approach runs in O(n) time and O(1) space — no extra array, no fancy methods, just pure logic. Problems like these make you realize how math and programming go hand in hand. Keep solving small logic-based problems — they sharpen both your problem-solving mindset and your coding confidence. 💪 #JavaScript #CodingJourney #FrontendDevelopment #DeveloperTips #LearnByDoing

Learning never stops — and today’s focus was on Template Literals in JavaScript ✨ Template literals are an elegant upgrade over traditional string concatenation. They make code cleaner, more readable, and dynamic — especially when dealing with multi-line strings or injecting variables directly inside strings. Example: const name = "Tom"; const course = "MERN Stack"; console.log(`Hello ${name}, welcome to the ${course} learning journey!`); Template literals also make it easy to: 1.Embed expressions directly in your strings (${expression}) 2.Create multi-line strings without messy \n 3.Combine dynamic data effortlessly This small but powerful ES6 feature makes my code not only neater but also more expressive. 🚀 #JavaScript #TemplateLiterals #ES6 #WebDevelopment #CodingJourney #LearnToCode #MERNStack #CodeEveryday #JavaScriptLearning #FrontendDevelopment #DeveloperLife #WomenInTech #100DaysOfCode #TechSkills #CodingCommunity #CleanCode #StringInterpolation #WebDevLearning #TechGrowth