Mastering JavaScript with Higher Order Functions

I just published a new blog post: "Understanding Objects in JavaScript" ✍️ Objects are one of the most fundamental parts of JS, allowing us to store complex data in structured key-value pairs. In this guide, I cover: What objects are and why we need them. Creating and accessing object properties. Updating, adding, and deleting data within objects. A huge thank you to Hitesh Choudhary sir and the Chai aur Code team for making these crucial concepts so clear and easy to follow. Read the full article here: 🔗 https://lnkd.in/eRDiPNWW #JavaScript #WebDevelopment #ChaiAurCode #LearningJourney #Coding #Hashnode

𝗘𝘃𝗲𝗿𝘆𝗼𝗻𝗲 𝗶𝘀 𝗰𝗵𝗮𝘀𝗶𝗻𝗴 𝘁𝗵𝗲 𝗻𝗲𝘄𝗲𝘀𝘁 𝗳𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸, 𝗯𝘂𝘁 𝗜 𝘄𝗲𝗻𝘁 𝗯𝗮𝗰𝗸 𝘁𝗼 𝗯𝗮𝘀𝗶𝗰𝘀 𝗮𝗻𝗱 𝗶𝘁 𝗰𝗵𝗮𝗻𝗴𝗲𝗱 𝗲𝘃𝗲𝗿𝘆𝘁𝗵𝗶𝗻𝗴. I stayed up late last night building a cart feature from scratch using just JS. It was the best way to level up my skills. Here is why raw JS is still undefeated:  • DOM Manipulation: No more relying on magic. I learned to create elements and inject them into the UI in real time. Seeing the cart update without a page refresh hits different.  • Event Handling: Spent way too long debugging click listeners. Event bubbling was a total menace, but now my "Add to Cart" button is bulletproof.  • Dynamic Data Management: Managing state as an array of objects was a massive brain teaser. Handling quantities and subtotal calculations forced me to write actual clean, reusable logic. Frameworks are great, but understanding what is happening under the hood makes you ten times faster at debugging later. I am excited to keep building and sharing my progress as I continue this journey. Link: https://lnkd.in/gUvNM-Zk Sarthak Sharma, Devendra Dhote, Ritik Rajput, Daneshwar Verma, Tanishq Sonwane, Sheryians Coding School #webdevelopment #dom #javascript #frontend

Remember this from math class? 𝘅 = 𝟱. 𝗙𝗶𝗻𝗱 𝘆. The moment we see this, we instantly assume: “𝘅 𝗵𝗼𝗹𝗱𝘀 𝘁𝗵𝗲 𝘃𝗮𝗹𝘂𝗲 𝟱.” Back then, variables mostly held numbers. Now here’s the interesting part… JavaScript didn’t stop at numbers. It introduced something called Data Types. Let’s simplify JavaScript Data Types ↓ Small differences. Big impact. 🚀 And this is just the beginning… Wait until you see what happens with "𝟱" + 𝟮 👀 Grateful to be learning and growing every day at Sheryians Coding School under the guidance of Harsh Vandana Sharma, Sarthak Sharma, and Ankur Prajapati. #JavaScript #WebDevelopment #Frontend #LearningJourney #LearnByAction #JS

✨ 𝗗𝗮𝘆 𝟳 𝗼𝗳 𝗠𝘆 𝗝𝗮𝘃𝗮𝗦𝗰𝗿𝗶𝗽𝘁 𝗝𝗼𝘂𝗿𝗻𝗲𝘆 🚀 Today I took a deep dive into 𝗝𝗮𝘃𝗮𝗦𝗰𝗿𝗶𝗽𝘁 𝗔𝗿𝗿𝗮𝘆𝘀, and it was fascinating to uncover how they really work under the hood. At first glance, arrays seem like a standard data structure, but in JavaScript, they are actually special types of objects. This means:   • They have numbered indices like arrays, but they’re technically keys on an object   • They come with powerful built-in methods like push(), pop(), map(), filter(), reduce()   • Their “length” property updates dynamically based on the highest index Learning this helps me understand why arrays in JS behave differently from arrays in other languages, and why knowing the inner workings is crucial for writing efficient and bug-free code. Every day, as I explore deeper, I realize that mastering the fundamentals is what builds a solid foundation as a developer. Step by step, my understanding of JavaScript is getting stronger and more confident! 💪 #JavaScript #100DaysOfCode #WebDevelopment #LearningJourney #FrontendDevelopment #CodingFundamentals

When datasets hit a million rows, performance gaps get real. Jessica Wachtel explores how WebAssembly pulls ahead of JavaScript in heavy browser-based processing.

𝗧𝗵𝗲 𝗙𝘂𝗻𝗰𝘁𝗶𝗼𝗻 𝘁𝗵𝗮𝘁 𝗡𝗲𝘃𝗲𝗿 𝗙𝗼𝗿𝗴𝗲𝘁𝘀: 𝗠𝗮𝘀𝘁𝗲𝗿𝗶𝗻𝗴 𝗖𝗹𝗼𝘀𝘂𝗿𝗲𝘀 🧠 Hi everyone! I’ve just released Part 5 of my JavaScript deep-dive series: 𝗧𝗵𝗲 𝗠𝗲𝗰𝗵𝗮𝗻𝗶𝗰𝘀 𝗼𝗳 𝗖𝗹𝗼𝘀𝘂𝗿𝗲𝘀. Closures are often treated like a "magic trick" in JavaScript interviews, but they are actually a logical result of how the engine links scopes together. If you’ve ever struggled with why a setTimeout in a loop logs the "wrong" number, or how "private" variables actually work in a language without a private keyword, this article is for you. 𝗜𝗻 𝘁𝗵𝗶𝘀 𝗽𝗮𝗿𝘁, 𝗜 𝗱𝗶𝘃𝗲 𝗶𝗻𝘁𝗼:  • 𝗧𝗵𝗲 𝗜𝗻𝘁𝗲𝗿𝗻𝗮𝗹 𝗦𝗹𝗼𝘁𝘀: Meet [[Environment]] and [[OuterEnv]], the two hidden connectors that make closures possible.  • 𝗩𝗮𝗿𝗶𝗮𝗯𝗹𝗲𝘀 𝘃𝘀. 𝗩𝗮𝗹𝘂𝗲𝘀: Why closures link to "live" variables (and why that leads to the famous loop trap).  • 𝗧𝗵𝗲 𝗜𝗜𝗙𝗘 𝘃𝘀. 𝗟𝗲𝘁: How we used to fix closures in the old days vs. the modern ES6 solution.  • 𝗘𝗻𝗰𝗮𝗽𝘀𝘂𝗹𝗮𝘁𝗶𝗼𝗻: How to use closures to create "vaults" for your data. Stop guessing how your functions remember data and start understanding the architecture behind it! Read the full article here: https://lnkd.in/dR_TngGA 🔗 𝗡𝗲𝘅𝘁 𝘂𝗽: We tackle the "Grand Design" of JavaScript objects, 𝗣𝗿𝗼𝘁𝗼𝘁𝘆𝗽𝗲𝘀. #JavaScript #SoftwareEngineering #WebDevelopment #Coding #Closures #ProgrammingTips #TechCommunity #ScopeChain

🔥 𝐓𝐡𝐞 𝐒𝐞𝐜𝐫𝐞𝐭 𝐋𝐢𝐟𝐞 𝐨𝐟 𝐉𝐚𝐯𝐚𝐒𝐜𝐫𝐢𝐩𝐭 — 𝐖𝐡𝐚𝐭 .𝐜𝐥𝐨𝐧𝐞() 𝐑𝐞𝐚𝐥𝐥𝐲 𝐌𝐞𝐚𝐧𝐬🤯 Most devs know how to copy data in JS. But few realize how each method behaves under the hood. Understanding this can save performance, prevent bugs, and improve clarity. There’s more to cloning than just “duplicate this object.” Here’s what you should know: • 📌 Reference vs Value — Not everything actually copies • 🧠 Shallow clone — Copies top level, not nested objects • 🪄 Deep clone — Copies whole structure • ✨ Spread operator (...) — Short but shallow • 🧱 Object.assign() — Also shallow • 🔁 JSON.parse(JSON.stringify()) — Deepish, but loses functions • 🌪️ StructuredClone — True deep clone with edge-case safety • 🧩 Lodash/utility clone — library tools that avoid common traps ➡️ Shallow clone without knowing deeper references leads to side effects. ➡️ JSON.parse loses types, dates, undefined, functions — beware. ➡️ Modern structured clone is the safest way for true deep copies. Knowing how to clone right improves code clarity and eliminates side effects that hide like ghosts. 👇 What’s your go-to way to clone complex objects in JS? #JavaScript #WebDevelopment #CodingWisdom #DeveloperLife #Frontend #SoftwareEngineering #Programming #CleanCode #Performance #JS2026 #TechTips #DevCommunity

Excited to share my latest blog post on DEV.to: "Function Declaration vs Function Expression: What’s the Difference?" 🔥 In this article, I dive into the key distinctions between these two fundamental concepts in JavaScript, including hoisting behavior, syntax differences, and when to use each for cleaner, more efficient code. Check it out here: https://lnkd.in/g7dNsK94 Thanks to Hitesh Choudhary sir, Piyush Garg sir, Akash Kadlag sir, Anirudh J. sir & the whole Chai Aur Code community for their continuous support. ❤️ #JavaScript #WebDevelopment #ChaiCode #Cohort2026

🚀 Day 25 of Learning in Public: JavaScript Edition 💻✨ 🚨 JavaScript Gotcha: Why JSON.stringify() is Eating Your Functions Ever wondered why your test data loses its methods after a deep clone? Let me show you what I discovered today. I was working with a JavaScript object that had both data AND behavior: javascript const employee = { age: 56, fName: "Piyush Saxena", login: function() { console.log("Logging in") }, marks: [55, 66, 88] } The Problem: When I ran JSON.stringify(employee), my login function vanished! Why? JSON is a DATA format, not a programming language. It can only store: ✅ Strings, Numbers, Booleans ✅ Arrays and Objects ❌ Functions (they're behavior, not data) ❌ undefined values Real-World Impact: This common pattern in test automation loses functionality: javascript const copy = JSON.parse(JSON.stringify(originalData)); You get a copy, but all helper methods are GONE. This is called a "lossy clone." Key Takeaways: 🔹 JavaScript objects are dynamic - add properties anytime 🔹 Dot notation vs Bracket notation - both work, bracket is more flexible 🔹 ES Modules: Named exports export { obj } vs Default export default obj 🔹 JSON serialization strips functions and undefined values #JavaScript #TestAutomation #SoftwareEngineering #LearnInPublic #DevCommunity

🚀 LeetCode Problem Solved – Sort Characters by Frequency Today I solved the “Sort Characters By Frequency” problem on LeetCode. 🔎 Problem Statement: Given a string, sort its characters in decreasing order based on their frequency. 🧠 Key Learning: Instead of directly sorting the string (which isn’t possible since strings are immutable in JavaScript), I: ✔ Counted the frequency of each character using an object ✔ Extracted keys using Object.keys() ✔ Sorted them based on frequency (descending order) ✔ Rebuilt the final string using nested loops 💡 Concepts Used: HashMap / Object for frequency counting Custom sorting with comparator function String building using loops Time Complexity optimization thinking ✨ Example: Input: "tree" Output: "eert" This problem strengthened my understanding of: Frequency-based sorting Custom comparator logic Clean DSA implementation in JavaScript Consistency in solving DSA problems daily 🚀 #LeetCode #DSA #JavaScript #ProblemSolving #CodingJourney #FrontendDeveloper #100DaysOfCode