Ajit Singh’s Post

New article out: “Let’s Implement Promise in TypeScript from Scratch.” In this post, I break down how Promises work under the hood and walk through building one from the ground up. It’s a practical way to deepen your understanding of asynchronous behavior in JavaScript, beyond just using .then() or async/await. If you’ve ever wondered why Promises behave the way they do, this will help demystify the internals with a clean, TypeScript-first implementation. A must-read for developers who want to move from using abstractions to understanding them. Read it here: https://lnkd.in/g4Ezhv3D #javascript #typescript #frontend

⚙️ Day 6 – Promises in JavaScript Today was all about Promises — one of the most powerful features in JavaScript! I learned how Promises make asynchronous code cleaner and easier to handle than callbacks. Explored methods like .then(), .catch(), and .finally(), and even tried chaining multiple Promises together. 💡 Key takeaway: Promises help you write code that “waits” without blocking the main thread. 💬 When did Promises finally start making sense to you? 😄 #JavaScript #Promises #AsyncProgramming #FrontendDevelopment #CodingJourney #React #Angular #vue #gfg #GeeksforGeeks

Ever wondered what’s the real difference between Default Imports and Named Imports in JavaScript? Both might look similar, but they play very different roles in how you structure and manage your projects. Default Imports are perfect when you’re bringing in one main export from a file clean and simple. Named Imports, on the other hand, let you import multiple specific elements, giving you more control and flexibility in your codebase. Understanding these small distinctions can take your coding from good to great, making your projects easier to maintain and your teamwork smoother. #JavaScript #ReactJS #WebDevelopment #FrontendDeveloper #ProgrammingTips #SoftwareDevelopment #LearnCoding #WebDevCommunity #CodeBetter #TechLearning #SoftwareEngineer #SilverSparrowStudios

Here's a JavaScript #quiz about a method we use all the time, but its default behavior can be a little surprising! When you call .sort() on an array of numbers without providing a custom compare function, what does JavaScript actually do behind the scenes? What will this code log to the console? Let me know your answer below! 👇 #JSQuiz #JavaScript #WebDevelopment #CodingChallenge #ArrayMethods #ES6

Built a Node.js while revising backend concepts — short, handwritten, and focused on what actually matters in day-to-day development. It covers everything from setup commands and module handling to async operations, the event loop, and quick syntax reminders — all in one glance. Perfect for quick refreshers before interviews or while building projects. #NodeJS #JavaScript #BackendDevelopment #FullStack #WebDevelopment #Coding #CCBP #NXTWAVE

Mastering the DOM is the first step toward becoming a powerful JavaScript developer. Here’s a simple, clear cheat sheet to understand how the browser interacts with your code. Small concepts — big impact! 🚀 #JavaScript #WebDevelopment #Frontend #Coding

Ever wondered what the real difference between JavaScript and TypeScript is, and why so many pros are making the switch? 🤔 This visual explains the "Professional Shift," showcasing how TypeScript adds structure, static typing, and early bug detection to JavaScript, leading to more scalable and maintainable codebases. Which do you prefer for your projects, and why? Let's discuss! 👇 #TypeScript #JavaScript #Coding #Frontend #Backend #SoftwareEngineering

3 Things I Stopped Doing as a Developer 1.Overengineering MVPs – shipping fast taught me more than perfecting ideas. 2.Ignoring documentation – now I document as I go. Saves hours later. 3.Chasing new frameworks #LearnTechWithFola #TechWithFola #30DaysChallenge #SoftwareEngineering #EcommerceDev #ReactJS #NextJS #JavaScript #TypeScript #BuildInPublic#Ai #Aibuilder

Today, I’m sharing a concise React Cheat Sheet — it includes important hooks (useState, useEffect, useRef, useCallback, useMemo), component patterns (functional vs class), props/state handling, conditional rendering, list rendering, common performance tips, and frequently used code snippets. This cheat sheet is designed as a quick reference for both beginners and mid-level developers — super useful for interview preparation, daily coding, and debugging. The cheat sheet is attached — check it out and let me know which snippet you found most useful! 🙏 #ReactJS #JavaScript #FrontendDeveloper #CodeSmarter

🚀 Ever wondered what really happens behind the scenes when JavaScript runs your code? Even though JavaScript is single-threaded, it behaves like it’s multitasking — all thanks to its Runtime Environment ⚙️ 🧩 Here’s a simple breakdown that made async behavior click for me: 🔹 Call Stack — runs code line by line 🔹 Memory Heap — stores variables & objects 🔹 Web APIs — handle async tasks like fetch() and setTimeout() 🔹 Event Loop — keeps checking if the stack is free and pushes tasks from queues 🔹 Microtask & Callback Queues — decide what executes next Understanding this helped me write smoother async code and debug with confidence 💪 #JavaScript #WebDevelopment #Frontend #AsyncJS #ProgrammingConcepts #LearnInPublic #CodeNewbie #WebDevCommunity