Logical Operators in JavaScript: Short-Circuiting, NOT, and Nullish Coalescing

#Day151 of Sheryians Coding School 🚀 Strong fundamentals compound. Today wasn’t about building something flashy and it was about sharpening JavaScript basics so that writing logic feels automatic instead of effortful. 1️⃣JS Revision: Did next 30 questions from the 100 question Practiced core JavaScript fundamentals with arrays creating, modifying, searching, slicing, copying, and sorting using built-in methods Wrote multiple utility functions like sum, max, reverse string, even/odd checks, and comparisons Practiced recursion through factorial implementation Worked on string manipulation (kebab-case conversion) Focused on improving syntax confidence, logic building, and speed Source Code: https://lnkd.in/dEQx7UWD 2️⃣DSA: Leetcode Concepts & Notes Learned difference between right shift operators in JavaScript: >> → signed right shift (preserves sign bit) >>> → unsigned right shift (fills with zeros) Left shift only has one operator: << 3️⃣Self Study: System Design - Throughput Throughput = amount of work processed per unit time Measured as: RPS (requests/sec) BPS (bits/sec) MPS (messages/sec) TPS (transactions/sec) Architecture impact Monolithic → lower throughput (single machine handles everything) Distributed → higher throughput (horizontal scaling + multiple machines) Ways to improve throughput Horizontal scaling Load balancers (Round Robin, etc.) Code optimization CDN Caching Better hardware resources 4️⃣Live: Backend day 18 Learned about middlewares to avoid repetition and improve code structure Understood how middleware centralizes shared logic (auth, validation, logging) Learned about edge collections for storing relationships between documents Useful for scalable relations like followers/following where embedding would grow too large 🌟Key Highlights Strengthened JavaScript array mastery Practiced recursion and string transformations Understood throughput and scaling strategies Improved backend architecture with middleware patterns #Day151 #SheryiansCodingSchool #JavaScript #JSRevision #SystemDesign #Throughput #Backend #DSA #LeetCode #CodingJourney

Deep Dive into `Promises` Today’s JavaScript class was fully focused on understanding Promises in depth. The session lasted almost 3 hours, but it was so engaging and information-packed that time just flew by. We explored how Promises work behind the scenes, how they handle asynchronous operations, and how they make code more structured and readable. Sessions like these truly strengthen fundamentals. Excited to keep learning and applying these concepts in real projects! Huge thanks to our mentors Hitesh Choudhary sir, Piyush Garg sir, Anirudh J. sir, Akash Kadlag sir and Chai Aur Code team.

Stop crossing your fingers 🤞🏽 every time you hit "Merge." I used to think that writing tests or setting up linting was just "extra work" that slowed down the real coding. I was WRONG. In the last few days, I’ve been diving deep into GitHub Actions, ESLint, and Jest. Here’s what I realized: These aren't just tools; they are a developer’s safety net. * ESLint catches the "oops" moments before they become bugs. * Jest gives me the confidence that my logic actually holds water. * GitHub Actions ties it all together, ensuring that no broken code ever sees the light of day. The goal isn't just to write code that works. It is to build a system that "prevents" it from breaking. How are you automating your peace of mind this week? #WebDevelopment #GithubActions #Javascript #Testing #ContinuousIntegration #SoftwareEngineering #LearningToCode

Most developers don’t have a coding problem. They have a consistency problem. You don’t need: 10 new courses Another JavaScript framework A “perfect” roadmap You need 90 days of focused building. Ship small. Refactor often. Break things. Fix them. Repeat! That’s how confidence is built. That’s how real engineers are made. What are you building this month? #BuildInPublic #SoftwareEngineering #BackendDevelopment #FlutterDev #Consistency

Week 6 – Class 2 | Cohort Learning Update (Chai Aur Code) Today’s session in the Chai aur Code cohort focused on deepening my understanding of JavaScript’s object-oriented and asynchronous concepts. Key topics covered today: • Understanding classes and constructors in JavaScript • Creating and working with objects using classes • Exploring how the system works internally when classes and objects are created • Error handling using try, catch, finally, and throw new Error • Introduction to Promises and how JavaScript handles asynchronous operations This session helped me understand how JavaScript manages errors and async flows in real-world applications, which is essential for writing robust and maintainable code. Continuing to build strong JavaScript fundamentals step by step. #JavaScript #ChaiAurCode #CohortLearning #WebDevelopment #ProgrammingFundamentals #ErrorHandling #Promises #LearningJourney

Day 12/30 – Namaste DSA in JavaScript 🚀 Here’s what I covered: Best Time to Buy and Sell Stocks - Continuing my DSA Learning Journey by solving the problem of finding the best day to buy and sell stocks to maximize profit. - Learned how a greedy approach helps make optimal decisions by tracking minimum price and maximum profit dynamically. - Strengthened my understanding of single-pass optimization and efficient array traversal. Learning to think smarter, not harder 💡💪 #30DaysOfCode #LearningJourney #DSA #GreedyAlgorithm #Upskilling #NamasteDev #FrontendDevelopment #CodingJourney #WebDevelopment

Day 2/30 – Namaste DSA in JavaScript 🚀 Here’s what I covered: Functions & Control Flow - Continuing my DSA Learning Journey by exploring functions and if-else statements. - Functions help break complex problems into reusable, manageable blocks, making code cleaner, easier to debug, and more scalable. - Along with if-else, learning how to control program flow efficiently and write logical, modular code. #30DaysOfCode #LearningJourney #DSA #ProgrammingBasics #Upskilling #NamasteDev #FrontendDevelopment #CodingJourney #WebDevelopment #LearningInPublic 

Day 14/30 – Namaste DSA in JavaScript 🚀 Here’s what I covered: Move Zeros - Continuing my DSA Learning Journey by solving the problem of moving all zeros to the end of an array while maintaining the relative order of other elements. - Practiced using an efficient in-place approach without disturbing non-zero elements. - Strengthened my understanding of array traversal and pointer-based logic. Focusing on writing clean and optimal array solutions 💪 #30DaysOfCode #LearningJourney #DSA #Arrays #Upskilling #NamasteDev #FrontendDevelopment #CodingJourney #WebDevelopment

#MERNStack Learning – Day 29 at Skill Shikshya Today I learned about the basic Create, Read, and Delete (CRD) methods and how they are used while working with data in applications. I understood how new data is created, how existing data is displayed, and how unwanted data can be removed when needed. This session helped me see how these operations are important for managing user information and building interactive features. It also gave me a clearer idea of how frontend actions connect with data handling logic. Learning these methods made me realize how real applications work behind the scenes when we add, view, or remove any information. #MERNStack #LearningJourney #CRUD #JavaScript #WebDevelopment #Day29

I recently built CodeBeez, a modern interactive code editor designed for developers and learners to write, execute, and experiment with code directly in the browser. 💡 Key Features: 🌍 Multi-language support (Python, JavaScript, TypeScript, Java, Go & more) 🎨 Beautiful Monaco-based editor with theme switching (Monokai & more) ⚡ Real-time code execution 📤 Shareable snippets 📋 One-click output copy 👍 🧠 Clean UI focused on productivity and learning CodeBeez is built to make coding simple, interactive, and accessible — whether you're testing logic, learning a new language, or teaching programming concepts. 🔗 Live Demo: https://lnkd.in/dHmHt5zr This project reflects my passion for building practical developer tools and improving user experience in technical platforms. #WebDevelopment #JavaScript #Python #React #DeveloperTools #FullStack #KintuAlexLadwong