TypeScript OOP Fundamentals with Hitesh Choudhary

𝗧𝗮𝗽 𝗜𝗻𝘁𝗼 𝗧𝘆𝗽𝗲𝗦𝗰𝗿𝗶𝗽𝘁'𝘀 𝗙𝘂𝗹𝗹 𝗣𝗼𝘁𝗲𝗻𝘁𝗶𝗮𝗹 You use TypeScript to write better code. But do you know its full power? TypeScript is more than "JavaScript with types". Its type system is a programming language. You can use it to catch bugs before they happen, create self-documenting code, and reduce runtime checks. Here are some ways to master TypeScript: - Use conditional types to create types that change based on conditions - Use mapped types to create new types by transforming each property of an existing type - Use template literal types to manipulate strings in the type system For example, you can create a type-safe event system that catches mistakes at compile time. Or you can create types that validate complex nested structures. To get started, try these steps: - Add one conditional type to your current project - Refactor existing any types to proper generics - Master TypeScript's built-in utility types - Practice with a playground project - Read source code from popular libraries Your goal: identify one place in your codebase where you can move runtime validation to the type system. Refactor it and see how many potential bugs you can prevent. Source: https://lnkd.in/gpAYjPHJ

Just published a new blog post on Event-Driven Programming in Node.js This article explains how the event-driven architecture works in Node.js using concepts like events, listeners, and the EventEmitter. I’ve also included simple code examples to help you clearly understand how Node.js handles asynchronous operations in real-world applications. If you're learning Node.js, this is an important concept to master! Read more: https://lnkd.in/dnEkxux4 #NodeJS #JavaScript #BackendDevelopment #WebDevelopment #Programming #SoftwareEngineering

I have been recently having fun with Javascript and I recently create about 3hours plus video trying to explain concept like Object Oriented programming(OOP), Async/Await and Promise in Javascript. For the OOP part, I talked about the four features of OOP which: 1. Abstraction 2. Encapsulation 3. Inheritance 4. Polymorphism. I also talked about the three ways someone can implement OOP in Javascript which are through the class, Object.create and through contructor function. I also talked about the fact that Js does not really have true class but a synthetic sugar implementation over constructor function/prototypal inheritance. For the Async part, I talked about asynchronous Javascript, Event loop, Callback Queue, Promises, resolving promises and how to basically promisify an async functions. Nothing Complex just having fun: https://lnkd.in/gBFqVgBe

Day 5 of Learning TypeScript 🚀 Today I explored some really useful concepts: • Index Signatures – help define types for objects with dynamic keys, making flexible data structures safer to use • Declaration Merging – allows combining multiple declarations into one, which makes extending existing types clean and powerful • Async Programming – using async/await with TypeScript ensures better handling of promises with proper type safety 💡 Takeaway: TypeScript makes even dynamic and asynchronous code more predictable and easier to manage. 🔥 On to Day 6! #TypeScript #JavaScript #WebDevelopment #Programming #Coding

#Day15 Mastering Callbacks in JavaScript Today let’s talk on Callbacks a core concept for handling asynchronous operations in JavaScript. At Mentorship for Acceleration for backend track, I explored how callbacks allow functions to execute after tasks like timers, events, or API responses complete. I also saw firsthand why they can lead to “Callback Hell” if not managed well. Key Concepts Practiced: => Basic callback implementation with setTimeout() => Using callbacks with array methods (.map(), .forEach(), .filter()) => Named vs anonymous callback functions => Understanding the limitations of nested callbacks Callbacks have sharpened my understanding of asynchronous programming and prepared me for cleaner patterns like Promises. Progressing steadily! #M4ACELearningChallenge #LearningInPublic #JavaScript

Continuing on the series of asynchronous programming,learning how asynchronous programming actually works, how callbacks were used to manage asynchronous code and how promises brought a revolution in handling asynchronous JavaScript is of paramount importance for every JavaScript developer. And you should not be the one who misses out on this opportunity. Here is the blog link: https://lnkd.in/d6Zv2tTG

Is there anyone who can give the answer of these questions? 1. Why did we need TypeScript when JavaScript can already handle everything? 🤔 2. Is TypeScript truly solving problems—or just adding complexity to development? Curious to hear real-world experiences from developers: • Did TypeScript improve your code quality? • Or did it slow you down? #JavaScript #TypeScript #WebDevelopment #Programming

Just published a new blog post on Asynchronous Programming in Node.js It explains how Node.js handles non-blocking operations to improve performance and efficiency. I’ve covered key concepts like callbacks, promises, and async/await along with practical code examples to help you understand how asynchronous flow works in real-world applications. If you're working with Node.js, mastering async programming is essential! Read more: https://lnkd.in/dt6H7gM9 #NodeJS #JavaScript #AsyncProgramming #WebDevelopment #Programming #SoftwareEngineering

TypeScript told you everything was fine. It lied. 8pm. Your phone buzzes. Slack from the CTO. "Something is broken in prod." You open the logs. undefined is not a function. But... the types were correct. You checked. TypeScript didn't complain. Then you see it. Someone used as SomeType three PRs ago to shut up the compiler. The API returned something different. TypeScript never saw it. It always is. TypeScript makes JavaScript safer. It doesn't make it safe. The gap is real. And it always shows up at the worst possible time. Rust makes a different promise. If it compiles, the type contract holds. Everywhere. Always. No casting your way out. No any as escape hatch. No "it should be fine" at 2am. That's a different guarantee entirely. Follow me. #rust #typescript #javascript #programming

Hot take: Mastering TypeScript's advanced generics is like finally appreciating pineapple on pizza—once you get it, there's no going back. Let's be real. TypeScript's type-level programming can feel like deciphering an ancient script. But when you nail those generics, it's a whole new world. Ever spent hours wrestling with inferred types, only to realize you're missing one key constraint? Been there. Done that. Experimenting with distributed conditional types? It's like vibe coding on steroids. Got a favorite horror story with type inference? Share it! #WebDevelopment #TypeScript #Frontend #JavaScript